Search Results: "weasel"

20 August 2014

Holger Levsen: 20140819-lts-july-2014

Debian LTS - impressions and thoughts from my first month involvement About LTS - we want feedback and more companies supporting it financially Squeeze LTS, and even more Debian LTS, is a pretty young project, started in May 2014, so it's still a bit unclear where exactly we'll be going :) One purpose of this post is to spread some information about the initiative and invite you to tell us what you think about it or what your needs are. LTS stands for "Long Term Support" and the goal of the project is to extend the security support for Squeeze (aka the current oldstable distribution) by two years. If it weren't for Squeeze LTS, the security support for it would have been stopped in May 2014 (=one year after the release of the current stable distribution), which for many is a too short timespan after it's release in February 2011. It's an experiment, we hope that there will be a similar Wheezy LTS initiative in future, but the future is unwritten and things will change based on our experiences and your needs. If you have feedback on the direction LTS should take (or anything else LTS related), please comment on the lts mailing list. For immediate feedback there is also the #debian-lts IRC channel. Another quite pragmatic way to express your needs is to read more about how to financially contribute to LTS and then doing exactly that - and unsurprisingly we are prioritizing the updates based on the needs expressed from our paying customers. My LTS work in July 2014 So, "somehow" I started working for money on Debian LTS in July, which means there were 10h I got paid, and probably another 10h where I did LTS related work unpaid. I used those to release four updates for squeeze-lts (linux-2.6, file, munin and reportbug) fixing 22 CVEs in total. The unpaid work was mostly spent on unsuccessfully working on security updates and on adding support for LTS to the security team tracker, which I improved but couldn't fully address and which I haven't properly shared / committed yet... but at least I have a local instance of the tracker now, which - for LTS - is more useful than the .debian.org one. Hopefully during DebConf14 we'll manage to fix the tracker for good. Without success I've looked at libtasn1-3 (where the first fixes applied easily but then the code had changed too much from what was in squeeze compared to the available patches that I gave up) and libxstream-java (which is at version 1.3, while patches exist for upstream branches 1.4 and 2.x, but those need newer java to build and maybe if I'll spend two more hours I'll can get it build and then I'll have to find a useful test case, which looked quite difficult on a brief look.. so maybe I give up on libxstream-java too.... OTOH, if you use it and can do some testing, please do tell me. Working on all these updates turned out to be more team work than expected and a lot of work involving code (which I did expect), and often code which I'd normally not look at... similarily with tools: one has to deal with tools one doesnt like, eg I had to install cdbs... :-) And as I usually like challenges, this has actually been a lot of fun! Though it's also pretty cool to use common best practices, easy and understandable workflows. I love README.Source (or better yet, when it's not needed). And while git is of course really really great, it's still very desirable if your package builds twice (=many times) in a row, without resetting it via git. Some more observations The first 16 updates (until July 19th) didn't have a DLA ID, until I suggested to introduce them and insisted until we agreed. So now we agreed to put the DLA ID in the subject of the announcement mails and there is also some tool support for generating the templates/mails, but enforcing proper subjects is not done, as silent bounces are useless (and non silent ones can be abused too easily). I'm not really happy about this, but who is happy with the way email works today? And I agree, it's not the end of the world if an LTS announcement is done without a proper ID, but it looks unprofessional and could be avoided, but we have more important work to do. But one day we should automate this better. Another detail I'm not entirely happy is the policy/current decision that "almost everything is fine to upload if deemed sensible by the uploader" (which is everyone in the Debian upload keyring(s)). In discussions before actually having the archive some people suggested the desire to upload new upstream versions too (eg newer kernels, iceweasel or other software to keep running a squeeze desktop in the modern world were discussed). I sincerely hope for most intrusive new upstream versions squeeze-(sloppy-)backports is used instead, and squeeze-lts rather not. Luckily so far all uploads were (IMHO) sensible and so, right now, I will just say that I hope it will stay this way. And it's true, one also has to install these upgrades in the first place. But people do that blindly all the time... So by design/desire currently there is no gatekeeping mechanism whatsover (no NEW, no proposed updates), except that only some selected "few" can upload. What is uploaded (and signed correctly), gets pushed to archive, buildds and the mirrors, and hopefully maybe someone will send an announcement. So far this has worked remarkedly well - and it's also the way the Debian Security team works, as I'm told. Looking at this from a process quality / automatisation perspective, all this manual and errorprone labour seems very strange to me. ;-) And then there is another thing: as already mentioned, the people working paid hours for this, are prioritizing their work based on customer requests. So we did two updates (python-scipy and file), which are not fixed in wheezy yet. I think this is unfortunate and while I could probably prepare the wheezy DSA for file, I don't really want to join the Security Team... or maybe I want/should join the Security Team and be a seldomly active member (eg fixing file in wheezy now....) A note related to this: out of those 37 uploads done until today, 16 were done by those two people being paid, while the other 21 uploads were done by 10 volunteers (or at least not paid by Debian LTS). It will be interesting to see how this statistics evolves over time. Last, but not least, there is also this can of worms (aka: the discussion) about paying people to work on Debian... I do agree it's work we didnt find volunteers for and I also see how the (financial side of the) setup is done outside of Debian (and well too, btw!), but... then we also use Debian ressources like buildds, the archive itself and official mailing lists. Also I'm currently biased in this discussion, as I directly (and happily) profit from it. I'm mentioning this here, because I believe it's important we discuss this and come to both good and practical conclusions. FWIW, we have also discussed this on the list, feel free to search the archives for it. To bring this post to an end: for those attending DebConf14 (directly or thanks to some ninjas), there will be an event about LTS in Portland, though I'm not sure yet what I will have to talk about what hasn't been already covered here :-) But this probably means that will be a good opportunity for you to do lots of talking instead! I'm curious what you will have to say! Thanks for reading this far. I think I can promise that my next LTS report will be shorter :-D

16 August 2014

Daniel Pocock: WebRTC: what works, what doesn't

With the release of the latest rtc.debian.org portal update, there are numerous improvements but there are still some known problems too. The good news is that if you have a web browser, you can probably make successful WebRTC calls from one developer to another without any need to install or configure anything else. The bad news is that not every permutation of browser and client will work. Here I list some of the limitations so people won't waste time on them. The SIP proxy supports any SIP client Just about any SIP client can connect to the proxy server and register. This does not mean that every client will be able to call each other. Generally speaking, modern WebRTC clients will be able to call each other. Standalone softphones or deskphones will call each other. Calling from a normal softphone or deskphone to a WebRTC browser, or vice-versa, will not work though. Some softphones, like Jitsi, have implemented most of the protocols to communicate with WebRTC but they are yet to put the finishing touches on it. Chat should just work for any combination of clients The new WebRTC frontend supports SIP chat messaging. There is no presence or buddy list support yet. You can even use a tool like sipsak to accept or send SIP chats from a script. Chat works for any client new or old. Although a WebRTC user can't call a softphone user, for example, they can send chats to each other. WebRTC support in Iceweasel 24 on wheezy systems is very limited On a wheezy system, the most recent Iceweasel update is version 24.7. This version supports most of WebRTC but does not support TURN relay servers to help you out of a NAT network. If you call between two wheezy machines on the same NAT network it will work. If the call has to traverse a NAT boundary it will not work. Wheezy users need to either download a newer Firefox version or use Chromium. JsSIP doesn't handle ICE elegantly Internet Connectivity Establishment (ICE, RFC 5245) is meant to prevent calls from being answered with missing audio or video streams. ICE is a mandatory part of WebRTC. When correctly implemented, the JavaScript application will exchange ICE candidates and run the connectivity checks before alerting anybody that a call is ringing. If the checks fail (for example, with Iceweasel 24 and NAT), the caller should be told the call can't be made and the callee shouldn't be disturbed at all. JsSIP is not operating in this manner though. It alerts the callee before telling the browser to start the connectivity checks. Then it even waits for the callee to answer. Only then does it tell the browser to start checking connectivity. This is not a fault with the ICE standard or the browser, it is an implementation problem. Therefore, until this is fully fixed, people may still see some calls that appear to answer but don't have any media stream. After this is fixed, such calls really will be a thing of the past. Debian RTC testing is more than just a pipe dream Although these glitches are not ideal for end users, there is a clear roadmap to resolve them. There are also a growing collection of workarounds to minimize the inconvenience. For example, JSCommunicator has a hack to detect when somebody is using Iceweasel 24 and just refuse to make the call. See the option require_relay_candidate in the config.js settings file. This also ensures that it will refuse to make a call if the TURN server is offline. Better to give the user a clear error than a call without any audio or video stream. require_relay_candidate is enabled on freephonebox.net because it makes life easier for end users. It is not enabled on rtc.debian.org because some DDs may be willing to tolerate this issue when testing on a local LAN. To find out more about practical integration of WebRTC into free software solutions, consider coming to my talk at xTupleCon in October.

20 July 2014

Laura Arjona: Upgrading my laptop to Debian Jessie

Some days ago I decided to upgrade my laptop from stable to testing. I had tried Jessie since several months, in my husband s laptop, but that was a fresh install, and a not-so-old laptop, and we have not much software installed there. In my netbook (Compaq Mini 110c), with stable, I already had installed Pumpa, Dianara and how-can-i-help from testing, and since the freeze is coming, I thought that I could full-upgrade and use Jessie from now on, and report my issues and help to diagnose or fix them, if possible, before the freeze. I keep Debian stable at work for my desktop and servers (well, some of them are still in oldstable, thanks LTS team!!), and I have testing in a laptop that I use as clonezilla/drbl server (but I had issues, next week I ll put some time on them and I ll write here my findings, and report bugs, if any). So! let s go. Here I write my experience and the issues that I found (very few! and not sure if they are bugs or configuration problems or what, I ll keep an eye on them). The upgrade I pointed my /etc/apt/sources.list to jessie, then apt-get update, then apt-get dist-upgrade. (With the servers I am much more careful, read the release notes, upgrade guides and so, or directly I go for a fresh install, but with my laptop, I am too lazy). I went to bed (wow, risky LArjona!) and when I got up for going to work, the laptop was waiting for me to accept to block root from ssh access, or restart some services, and so. Ok! the upgrade resumed but I have to go to work and I wanted my laptop! Since all the packages were already downloaded, I closed the lid (double risky LArjona!) unplugged it, put everything in my bag, and catched the bus in time :) At the bus, I opened again the lid of my laptop (crossing fingers!) and perfect, the laptop had suspended and returned back to life, and the upgrade just resumed with no problem. Wow! I love you Debian! After 15 minutes, I had to suspend again, since the bus arrived and I had to take the metro. In the metro, the upgrade resumed, and finished. I shutdown my laptop and arrive to work. Testing testing :) In a break for lunch, I opened my brand new laptop (the hardware is the same, but the software totally renewed, so it s brand new for me). I have to say that use xfce, with some GNOME/GTK apps installed (gedit, cheese, evince, XChat ) and some others that use Qt or are part of the KDE project (Okular, Kile, QtLinguist, Pumpa, Dianara). I don t know/care too much about desktops and tweaking my desktop: I just put the terminal and gedit in black background, Debian wallpaper is enough dark for me so ok, put the font size a bit smaller to better use my low-vertical-resolution, and that s all, I only go to configure something else if there s something that really annoys me. My laptop booted correctly and a nice, more modern LightDM was greeting me. I logged in and everything worked ok, except some issues that follow. Network Manager and WPA2-enterprise wireless connections I had to reconfigure some wireless connections in Network Manager. At the University we use WPA2-enterprise, TTLS + PAP. I had stored my username and password in the connection, and network manager seemed to remember the username but not the password. No problem, I said, and I wrote it when it asked, but the Save or OK button was greyed out. I could not click it. Then I went to edit the connections, and more or less the same, it seems that I could edit, but not save the (new) configuration. Finally, I removed the wireless connection and created it again, and everything worked as a charm. This, I had to do it with the two wireless in my University (both of them are WPA2-enterprise TTLS + PAP). At home, I have WPA2 personal, and I had no issues, everything worked ok. This problem is not appearing in a fresh install, since there are no old configs to keep. Adblock Plus not working any more I opened Iceweasel and I began to see ads in the webpages that I visited. What? I checked and Adblock plus was installed and activated I reinstalled the package xul-ext-adblock-plus and it worked again. Strange display in programs based on Qt When I opened Pumpa I noticed that the edges of the windows where too rough, as if it was not using a desktop theme. I asked to a friend that uses Plasma and he suggested to install qt4-qtconfig, and then, select a theme for my Qt apps. It worked like a charm, but I find strange that I didn t need it before in stable. Maybe the default xfce configuration from stable is setting a theme, and the new one is not setting it, and so, the Qt apps are left barefoot .
With qtconfig I chose a GTK+ Style GUI for my Qt apps and then, they looked similar to what I had in stable (frankly, I cannot say if it was similar or exactly the same , but I didn t find them strange as before, so I m fine). Strange display in programs from GNOME Well, this is not a Jessie problem, it s just that some programs adopted the new GNOME appearance, and since I m on xfce, not on GNOME, they look a bit strange (no menus integration, and so). I am not sure that I can run GNOME (fallback, classic?) in my 1 GB RAM laptop, I have to investigate if I can tweak it to use less memory, or what. I m not very tied to xfce, and in fact it does not look so light (well, on top of it, I don t run light programs, I run Iceweasel, Icedove, Libreoffice, and some others). At work I use GNOME in my desktop, but with GNOME shell, not the fallback or classic modes, so I m thinking about giving a chance to MATE or second chance to LXDE. We ll see. Issues when opening the lid (waking up from suspend) This is the most strange thing I found in the migration, and the most dangerous one, I think. As I said before, I don t tweak too much my desktop, if it works with the default configuration. I m not sure that I know the differences between suspend, hibernate, hard disks disconnections and so. When I was in stable, and I closed the lid of my laptop, it just shutdown the screen, then I heard something like the system going to suspend or whatever, and after some seconds, the harddisk and fans stop, the wireless led turns off, and the power led begins to blink. Ok. When I open the lid, then it was waking up itself (the power led stayed on, the wireless led turns on, and when I tap the touchpad or type anything, the screen was coming, with the xscreensaver asking for my password). Just sometimes, when the screen was turning on, I could see my desktop for less than a second, before xscreensaver turns the background black and asks for the password. Now since I migrated to Jessie, I m experiencing a different behavior. When I close the lid, the laptop behaves the same. When I open the lid, the laptop behaves the same, but when I type or tap the touchpad and xscreensaver comes to ask the password, before than I can type it, the laptop just suspends again (or hibernates, I m not sure), and I have to press the power button in order to bring it back to life (then I see the xscreensaver again asking for the password, I type it, and my desktop is there, the same as I left it when I closed the lid). Strange, isn t it? I have tried to suspend my laptop directly from the menu, and it comes to the same state in which I have to press the power button in order to bring it back to life, but then, no xscreensaver password is required (which is double strange, IMHO). Things I miss in Jessie Well, until now, the only thing I miss in Jessie is the software center. I rarely use it (I love apt) but I think it makes a good job in easing the installation of programs in Debian for people coming from other operative systems (specially after smartphones and their copied software stores became popular). I hope the maintainer can upload a new version before the freeze, and so, it enters in the release. I ll try to contact him. Update 2014/07/20: Julian Andres Klode, maintainer of software-center, just replied (see his comment below) and pointed to GNOME Software (gnome-packagekit) as alternative. I just installed and it looks neat and nice. I m very happy! TODO I have a Debian stable laptop at work (this one with xfce + GNOME), I ll try to upgrade it and see if I see the same problems that I notice in mine. Then, I ll check the corresponding packages to see if there are open bugs about them, and if not, report them to their maintainers. I have to review the wiki pages related to the Jessie Desktop theme selection, I think they wanted the wallpaper to be inside before the freeze. Maybe I can help in publicity about that, handle the votings and so. I like Joy, but it s time to change a bit, new fresh air into the room!
Filed under: My experiences and opinion Tagged: Contributing to libre software, Debian, English, Free Software, Moving into free software

22 May 2014

Steve Kemp: So firefox is dead to me now, sadly.

I've somehow managed to break firefox:
Random downloads fail
They appear in the download manager with "failed" next to them. Copying and pasting the URL and fetching via wget works.
Random extensions fail to install.
"Ghostery could not be installed because firefox cannot modify the needed file".
Moving ~/.cache/mozilla and ~/.mozilla out of the way don't help. Installing "tree style tabs" fails with no particular error. The actual error reads "The extension couldn't be installed because firefox couldn't modify the needed file". Googling didn't help, because it says "Create a new profile", which doesn't help, or "Disable extensions", which doesn't apply since none are present in the new profile. Running strace doesn't reveal any obvious EACCES, EPERM, or ENOENT errors so I'm struggling to spot an obvious problem. Downloading a binary firefox to /opt/firefox fails in the same way. Logging out of my desktop fails to make any difference. Annoying. The only thing I can say is:
shelob ~ $ dpkg --list   egrep '(xul icewea)'
ii  iceweasel     29.0.1-1~bpo70+1    ...
ii  xulrunner-29  29.0.1-1~bpo70+1    ...
For the moment I'm hating the use of chromium, but it will suffice until I can try to dig deeper.

18 May 2014

Benjamin Mako Hill: Installing GNU/Linux on a 2014 Lenovo Thinkpad X1 Carbon

I recently bought a new Lenovo X1 Carbon. It is the new second-generation, type 20A7 laptop, based on Intel s Haswell microarchiteture with the adaptive keyboard. It is the version released in 2014. I also ordered the Thinkpad OneLink Dock which I have returned for the OneLink Pro Dock which I have not yet received. The system is still very new, challenging, and different, but seems to support GNU/Linux reasonably well if you are willing to run a bleeding edge version and/or patch your kernel and if you are not afraid to spend an afternoon or two tweaking things. What follows are my installation notes for Debian testing (jessie) when I installed it in early May 2014. My general impressions about the laptop as a GNU/Linux system and overall are at the end of this write-up.
System Description The X1 Carbon I ordered included the 512GB SSD, the 14.0 inch WQHD (2560 1440) 260 nit touchscreen, and the maximum 8GB of memory. I believe the rest is not particularly negotiable but includes a 720p HD Camera, a 45.2Wh battery, and an Intel Dual Band Wireless 7260AC with Bluetooth 4.0. For those that are curious Here is the output of lspci on the system:
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04)
00:16.3 Serial controller: Intel Corporation Lynx Point-LP HECI KT (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-LM (rev 04)
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 6 (rev e4)
00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4)
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
BIOS/Firmware The BIOS firmware is non-free and proprietary as it the case with all ThinkPads and nearly all laptops. According to this thread there is a bug in the default BIOS that means that suspend to RAM is broken in GNU/Linux. You can get updated BIOS at the Lenovo s ThinkPad X1 Carbon (Type 20A7, 20A8) Drivers and software page by looking in the the BIOS section. Honestly, the easiest approach is probably to download the Windows BIOS Update utility (documentation is here) which you can use to run the BIOS update from within Windows before you install GNU/Linux. If that s not an option (e.g., if you ve already installed GNU/Linux) the best method is to download the bootable CD ISO from the same page. Of course, since the X1 Carbon has no optical media, you have to find another way to boot the CD image. I struggled to get the ISO to boot from USB using the usually reliable dd method. This message suggest that the issue had to do with the El Torito wrapper:
I had to dump the eltorito image from the ISO they provide, after that I was able to dd the resulting image to a flash drive and the bios update went well, no cdrom needed.
I updated to version 1.13 of the BIOS which fixes the suspend/resume bug. By the time you read this, there may be newer versions that fix other things so check the Lenovo website.
Installing Debian I installed Debian testing using the March 19, 2014 Alpha 1 release of the Debian Installer for Jessie (currently testing). I installed in graphical mode. With the WQHD screen, everything was extremely tiny but it worked flawlessly. I downloaded the amd64 net install image from the normal place and installed the rest of the system using the built-in Ethernet port which required no firmware or extra drivers. I did the normal dd if=FILENAME.iso of=/dev/sdX method of getting the installer onto the a USB stick to boot. I turned off restricted boot in BIOS first. In general, the latest version of the Debian installation guide is always a good source of guidance on installing Debian. I used the Debian installer wizard to partition and selected Use entire disk and partition it for LVM and encrypted data which kept the UEFI partitions around. The system installed with no errors or issues and booted up normally afterward. The grub menu is hilariously narrow on the WQHD screen. If you want to use the built-in wireless and/or Bluetooth, you will need to install the non-free iwlwifi firmware package. It is very lame that we still have to do this to use hardware we have purchased.
What Works and Doesn t The following stuff works the first time I booted into the GNOME 3 desktop and logged in:
  • The WQHD 2560 1440 screen
  • The touchscreen
  • Both the TrackPoint and the touchpad
  • Built-in e1000e Ethernet using the dongle
  • The keyboard plus the adaptive row of F1-F12 keys.
  • External monitor using the full HDMI or mini-DisplayPort connectors
  • Audio (both speakers and microphone)
  • The camera/webcam
The following stuff works if you install non-free firmware:
  • Internal Wireless
  • Bluetooth 4.0
The following stuff works with qualifications:
  • Suspend to RAM Works once you have updated the firmware.
  • The adaptive keyboard The F1-F12 keys work but the button that theoretically lets you switch to different sets of function buttons (e.g., volume, brightness) does nothing.
  • Disabling the touchpad There is a BIOS option to disable the touchpad. It works in Windows and does nothing at all in GNU/Linux.
I have not tried:
  • The fingerprint reader
Disabling the touchpad As a long-term ThinkPad user, I love the TrackPoint pointing stick. If you plan on using this, the built-in touchpad is incredibly aggravating because it is very easy to brush against it while using the TrackPoint. In BIOS, there is an option to disable the touchpad. Although this works in Windows, it does absolutely nothing in GNU/Linux. Part of the issue is that, unlike the older X1 Carbon and other ThinkPads, there are no TrackPoint buttons. Instead of buttons, there are regions at the top of the touchpad which are configured, in software, to act like buttons. If you want to be able to click, the touchpad can never be truly turned off. This is not problem unique to the Haswell X1 Carbon and a number of people have been struggling with this issue on other Lenovo laptops. Essentially, what you need to do is configure your touchpad so that the buttons are where you want them and so that it ignores any input for the purposes of cursor movement. There are a few ways of doing this but this answer from an askubuntu.com question has the solution I ended up using:

Open file /usr/share/X11/xorg.conf.d/50-synaptics.conf for edit.

Find Section InputClass which the following line is Identifier Default clickpad buttons .

Edit option for SoftButtonAreas to values 64% 0 1 42% 36% 64% 1 42%, this is size of the right and middle button.

Enable option AreaBottomEdge and change value to 1, this will disable touchpad movement.

If everything done right, your class should looks like:

Section "InputClass"
     Identifier "Default clickpad buttons"
     MatchDriver "synaptics"
     Option "SoftButtonAreas" "64% 0 1 42% 36% 64% 1 42%"
     Option "AreaBottomEdge" "1"
EndSection
Essentially, the first Option line will create a middle button that is 32% of the width and 42% of the height, and a right button that is 32% of the width and 42% of the height. The synaptics manpage (man synpatics) will give you more detail on the general way this works. Of course, something does feel very wrong about editing a file in /usr/share.
Fixing the Adaptive Keyboard The most wild feature of the laptop is the adaptive keyboard strip. The strip is a back-lit LCD that looks almost like E Ink screen and acts as a touchscreen keyboard. The default mode gives you the F1-F12 keys. If you press the keys (since they aren t buttons, you just put your finger on top of them) they act like normal F-keys. You can Ctrl-Alt-F1, etc., to switch to virtual terminals out of the box. There are four modes: Function (i.e., normal F-keys), Home, Web, and Chat. The last three overlap quite a bit (e.g., they all have brightness and volume). You can play with an example on the Lenovo homepage. In Windows, switching programs will apparently change these keys so that an appropriate set of buttons is shown for the application you are using. You can also change these keys manually with a big Fn button at the far left of the adaptive keyboard strip. As I write this this, released kernels do not support the adaptive keyboard Fn button which means you cannot use anything other than the F-keys out of the box. I believe it also means that resuming from suspend to RAM breaks these keys. That said, Shuduo Sang from Canonical has released several versions of a patch to to the thinkpad_acpi kernel module which adds support for the Home mode. The other modes (web and chat) do not seem to be supported. The latest version of the patch is on on the Linux Kernel Mailing List and the relevant commits are:
330947b save and restore adaptive keyboard mode for suspend and,resume
3a9d20b support Thinkpad X1 Carbon 2nd generation's adaptive keyboard
Although this is not supported in Debian testing at the time of writing, a bug was filed in Debian and quickly fixed by Ben Hutchings in Debian kernel version 3.14.2-1 which is currently in sid/unstable. As a result, if you install the latest version kernel from Debian unstable (3.14.2-1 or later), the adaptive keyboard just works. If you aren t using Debian and if kernel you are using does not have support, you might be patching your kernel.
General Impressions As I have described in my interview with The Setup, I have been a user of ThinkPad X-series laptops for many years. This is my sixth X-series ThinkPad. Overall, I quite like the hardware! Once things mature a little bit, I think that this will be a great laptop for running GNU/Linux. That said, I ordered the laptop without realizing that the X1 Carbon had gone through a major revision! The keyboard was quite a suprise. I think that changing a system so radically without changing the model name/number is a very bad move on Lenovo s part. There are two remaining issues with the system I m still struggling with: (1) the keyboard layout is freaky and weird, and (2) the super high resolution screen breaks many things. The quality of the keyboard itself is great and worthy of the ThinkPad name. That said, there are two ways in which it is strange. The first is the adaptive keyboard strip. Overall, it works surprisingly well and I think it is a clever idea. My sense is that the strip is more annoying in Windows because it changes out from under you all the time. In GNU/Linux, only manual changing of modes is supported. This, in my opinion, is a feature. I do miss the real feedback you get from pressing keys but for F-keys and volume-keys that I don t use often this isn t too important. On the downside, I have realized several times that I had been holding down a button for several seconds and not noticed. The more annoying issue with the keyboard is the way that the other keys have moved around. Getting rid of the CapsLock is wonderful! How has this taken so long? Replacing it with a split Home and End keys is nuts. I ve remapped the Home and End to put Control back where it should be. My right Control to now Home but I still don t have an End key. The split Backspace and Delete is not a problem for me. The tilde/apostrophe is in a very bad place. There is no Insert, Print Screen/SysRq, Scroll Lock, Pause/Break or NumLock. They are all just gone. Surprisingly, I haven t missed any of them. The second issue is the 2560 1440 resolution on the 14 inch screen. I use a 27 inch external monitor with the same native resolution laptop but, by my arithmetic, the pixel density on the laptop is 210 DPI instead 109 DPI on the external monitor. The result is the scaling problem and it s a huge pain that seems mostly unsolved on any operating system. Fonts and widgets that look good on the laptop look huge on my external monitor. Stuff that looks good on my external monitor looks minuscule on the laptop. I routinely move windows between my laptop screen and my large monitor. Until I find a display system that can handle this kind of scaling effectively, this requires changing font size and zooming all the time. At the moment, I m shrinking and expanding my font size using the built in hot keys in Emacs, Gnome Terminal, and Firefox/Iceweasel. I love the high resolution screen but the current situation is crazy-making. Finally, this setup will not get you into the Church of Emacs and it s not about to find its way onto the FSF s list of endorsed hardware. For one, I paid the Windows tax. Beyond that, there is the non-free BIOS and the need for non-free firmware to use the wireless and Bluetooth. This is standard for ThinkPads but it isn t getting any easier to swallow. There are alternatives in the form of Gluglug s X60 laptops running CoreBoot, Lemote Yeelong laptops, Bunnie Huang s Novena and others that are better in these regards. I am very excited for these projects but, for a number of reasons, these just weren t an option for the laptop I use for my research computing.

25 April 2014

Martín Ferrari: More DNSSEC

After quite a few hours of work, I finally switched completely to DNSSEC. Both client-side in my notebook, and in my personal tincho.org domain. The client-side was pretty easy, although something broke in dnsmasq, but I had no patience to debug it, so I have just replaced it with a stock bind9 install, which is DNSSEC-enabled by default nowadays! To complement that, I added a plugin to Firefox/Iceweasel (WNPP bug #672845 pending, downloadable from the Czech NIC) that shows me with a nice icon if the DNS is secure or not (and in the newest versions, it also shows DANE status, yay!). So, basically, if you want to have DNSSEC support in your computer, just install unbound or bind9 (maybe dnsmasq, if you don't hit the same bug as me), it is really easy to have it up and running in no time. To test if it is correctly working, apart from that nifty plugin, you can visit this funny web page from Verisign labs. On the server side, it was trickier. It involves quite a few steps, and the default tools from package dnssec-tools are pretty buggy. But it was not too bad. After moving my domain from the registrar's DNS to my own server, configuring secondaries, etc. I went ahead with the DNSSEC configuration. I used this pretty good DNSSEC howto, which made the process a lot easier. After having my DNS server ready, I added the DS records in my registrar, and voil , tincho.org is now protected by DNSSEC! There are a few web services to test your deployment, a simple one, and a more complete one with GraphViz diagrams! I felt so bold with all this, that I went ahead and created DANE and SSHFP records for my services (and had to debug issues with SSH, because the old ssh-keygen tool would not create ECDSA records). And even set Postfix to use DANE to connect to remote hosts. Let's see how many things break in the following days!

13 April 2014

C.J. Adams-Collier: When was the last time you upgraded from squeeze to wheezy?

Wow. 3G delta. I haven t booted this laptop for a while I think I m finally ready to make the move from gnome2 to gnome3. There are bits that still annoy me, but I think it s off to a good start. Upgrading perl from 5.10 to 5.14.
cjac@calcifer:~$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be REMOVED:
  at-spi capplets-data compiz compiz-gnome compiz-gtk defoma deskbar-applet g++-4.3 gcc-4.3 gcj-4.4-base gcj-4.4-jre gcj-4.4-jre-headless gcj-4.4-jre-lib
  gdm3 gir1.0-clutter-1.0 gir1.0-freedesktop gir1.0-glib-2.0 gir1.0-gstreamer-0.10 gir1.0-gtk-2.0 gir1.0-json-glib-1.0 glade-gnome gnome-about
  gnome-accessibility gnome-applets gnome-core gnome-panel gnome-utils-common lib32readline5-dev libbrasero-media0 libclass-mop-perl libdb4.7-java
  libdb4.8-dev libdevhelp-1-1 libdigest-sha1-perl libdirectfb-dev libebook1.2-9 libecal1.2-7 libedata-book1.2-2 libedata-cal1.2-7 libedataserverui1.2-8
  libepc-1.0-2 libepc-ui-1.0-2 libept1 libgcj10 libgcj10-awt libgd2-noxpm libgstfarsight0.10-0 libgtkhtml-editor0 libjpeg62-dev libmetacity-private0
  libmono-accessibility1.0-cil libmono-bytefx0.7.6.1-cil libmono-cairo1.0-cil libmono-cil-dev libmono-corlib1.0-cil libmono-cscompmgd7.0-cil
  libmono-data-tds1.0-cil libmono-data1.0-cil libmono-debugger-soft0.0-cil libmono-getoptions1.0-cil libmono-i18n-west1.0-cil libmono-i18n1.0-cil
  libmono-ldap1.0-cil libmono-microsoft7.0-cil libmono-npgsql1.0-cil libmono-oracle1.0-cil libmono-peapi1.0-cil libmono-posix1.0-cil
  libmono-relaxng1.0-cil libmono-security1.0-cil libmono-sharpzip0.6-cil libmono-sharpzip0.84-cil libmono-sqlite1.0-cil libmono-system-data1.0-cil
  libmono-system-ldap1.0-cil libmono-system-messaging1.0-cil libmono-system-runtime1.0-cil libmono-system-web1.0-cil libmono-system1.0-cil
  libmono-webbrowser0.5-cil libmono-winforms1.0-cil libmono1.0-cil libmtp8 libnautilus-extension1 libpango1.0-common libperl5.10 libpolkit-gtk-1-0
  libpulse-browse0 librpm1 librpmbuild1 libsdl1.2-dev libsdl1.2debian-pulseaudio libseed0 libstdc++6-4.3-dev libtelepathy-farsight0 libupnp3 libvlccore4
  libxmlrpc-c3 linphone-nox linux-headers-2.6.32-5-amd64 linux-sound-base metacity mono-2.0-devel mono-devel mysql-client-5.1 mysql-query-browser
  mysql-server-5.1 mysql-server-core-5.1 openoffice.org-base-core openoffice.org-core openoffice.org-gcj openoffice.org-report-builder-bin
  openoffice.org-style-andromeda php5-suhosin portmap python-beagle python-brasero python-docky python-encutils python-evince python-gnomeapplet
  python-gtop python-mediaprofiles python-metacity python-totem-plparser seahorse-plugins smbfs speedbar totem-coherence tqsllib1c2a unixcw vlc
  xserver-xorg-video-nv
The following NEW packages will be installed:
  accountsservice acl aisleriot apg aptdaemon-data aptitude-common asterisk-core-sounds-en asterisk-modules asterisk-moh-opsound-gsm at-spi2-core
  ax25-node bluez btrfs-tools caribou caribou-antler chromium chromium-inspector colord console-setup console-setup-linux cpp-4.6 cpp-4.7 crda
  cryptsetup-bin cups-filters db-util db5.1-util dconf-gsettings-backend dconf-service dconf-tools distro-info-data docutils-common docutils-doc enchant
  extlinux finger folks-common fonts-cantarell fonts-droid fonts-freefont-ttf fonts-horai-umefont fonts-lg-aboriginal fonts-liberation fonts-lyx
  fonts-opensymbol fonts-sil-gentium fonts-sil-gentium-basic fonts-sipa-arundina fonts-stix fonts-takao fonts-takao-gothic fonts-takao-mincho
  fonts-thai-tlwg fonts-tlwg-garuda fonts-tlwg-kinnari fonts-tlwg-loma fonts-tlwg-mono fonts-tlwg-norasi fonts-tlwg-purisa fonts-tlwg-sawasdee
  fonts-tlwg-typewriter fonts-tlwg-typist fonts-tlwg-typo fonts-tlwg-umpush fonts-tlwg-waree fonts-umeplus fuse g++-4.7 g++-4.7-multilib gcc-4.6
  gcc-4.6-base gcc-4.7 gcc-4.7-base gcc-4.7-multilib gcj-4.7-base gcj-4.7-jre gcj-4.7-jre-headless gcj-4.7-jre-lib gconf-service gcr
  gir1.2-accountsservice-1.0 gir1.2-atk-1.0 gir1.2-atspi-2.0 gir1.2-caribou-1.0 gir1.2-clutter-1.0 gir1.2-clutter-gst-1.0 gir1.2-cogl-1.0
  gir1.2-coglpango-1.0 gir1.2-evince-3.0 gir1.2-folks-0.6 gir1.2-freedesktop gir1.2-gck-1 gir1.2-gconf-2.0 gir1.2-gcr-3 gir1.2-gdesktopenums-3.0
  gir1.2-gdkpixbuf-2.0 gir1.2-gee-1.0 gir1.2-gkbd-3.0 gir1.2-glib-2.0 gir1.2-gmenu-3.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomekeyring-1.0
  gir1.2-gst-plugins-base-0.10 gir1.2-gstreamer-0.10 gir1.2-gtk-3.0 gir1.2-gtkclutter-1.0 gir1.2-gtksource-3.0 gir1.2-gtop-2.0 gir1.2-gucharmap-2.90
  gir1.2-javascriptcoregtk-3.0 gir1.2-json-1.0 gir1.2-mutter-3.0 gir1.2-networkmanager-1.0 gir1.2-notify-0.7 gir1.2-panelapplet-4.0 gir1.2-pango-1.0
  gir1.2-peas-1.0 gir1.2-polkit-1.0 gir1.2-rb-3.0 gir1.2-soup-2.4 gir1.2-telepathyglib-0.12 gir1.2-telepathylogger-0.2 gir1.2-totem-1.0
  gir1.2-totem-plparser-1.0 gir1.2-upowerglib-1.0 gir1.2-vte-2.90 gir1.2-webkit-3.0 gir1.2-wnck-3.0 gir1.2-xkl-1.0 git-man gjs gkbd-capplet glchess
  glib-networking glib-networking-common glib-networking-services glines gnect gnibbles gnobots2 gnome-bluetooth gnome-contacts gnome-control-center-data
  gnome-desktop3-data gnome-font-viewer gnome-icon-theme-extras gnome-icon-theme-symbolic gnome-online-accounts gnome-packagekit gnome-packagekit-data
  gnome-shell gnome-shell-common gnome-sudoku gnome-sushi gnome-themes-standard gnome-themes-standard-data gnome-user-share gnome-video-effects gnomine
  gnotravex gnotski gnuplot gnuplot-nox grilo-plugins-0.1 groff growisofs gsettings-desktop-schemas gstreamer0.10-gconf gtali guile-2.0-libs gvfs-common
  gvfs-daemons gvfs-libs hardening-includes hwdata iagno ienglish-common imagemagick-common ioquake3 ioquake3-server iputils-tracepath ipxe-qemu iw
  keyutils kmod krb5-locales lib32itm1 lib32quadmath0 lib32tinfo-dev lib32tinfo5 libaacplus2 libaacs0 libabiword-2.9 libaccountsservice0 libamd2.2.0
  libapache-pom-java libapol4 libapt-inst1.5 libapt-pkg4.12 libaqbanking-plugins-libgwenhywfar60 libaqbanking34 libaqbanking34-plugins libaqhbci20
  libaqofxconnect7 libarchive12 libasprintf0c2 libassuan0 libatk-adaptor libatk-adaptor-data libatk-bridge2.0-0 libatkmm-1.6-1 libatkmm-1.6-dev
  libatspi2.0-0 libaudiofile1 libavahi-ui-gtk3-0 libavcodec53 libavcodec54 libavformat53 libavformat54 libavutil51 libbabl-0.1-0 libbind9-80 libbison-dev
  libblas3 libbluray1 libboost-iostreams1.49.0 libboost-program-options1.49.0 libboost-python1.49.0 libboost-serialization1.49.0 libboost-thread1.49.0
  libbrasero-media3-1 libcairo-gobject2 libcairo-script-interpreter2 libcamel-1.2-33 libcanberra-dev libcanberra-gtk3-0 libcanberra-gtk3-module
  libcanberra-pulse libcapi20-3 libcaribou-common libcaribou-gtk-module libcaribou-gtk3-module libcaribou0 libccrtp0 libcdio-cdda1 libcdio-paranoia1
  libcdio13 libcfg4 libchamplain-0.12-0 libchamplain-gtk-0.12-0 libcheese-gtk21 libcheese3 libclass-factory-util-perl libclass-isa-perl libclass-load-perl
  libclass-load-xs-perl libclutter-1.0-common libclutter-gst-1.0-0 libclutter-gtk-1.0-0 libclutter-imcontext-0.1-0 libclutter-imcontext-0.1-bin
  libcluttergesture-0.0.2-0 libcmis-0.2-0 libcogl-common libcogl-pango0 libcogl9 libcolord1 libcommons-parent-java libconfdb4 libcoroipcc4 libcoroipcs4
  libcpg4 libcryptsetup4 libcrystalhd3 libcupsfilters1 libcw3 libdata-alias-perl libdatetime-format-builder-perl libdatetime-format-iso8601-perl
  libdb-java libdb5.1 libdb5.1-dev libdb5.1-java libdb5.1-java-jni libdbus-c++-1-0 libdbus-glib1.0-cil libdbus1.0-cil libdconf0 libdee-1.0-4
  libdevel-partialdump-perl libdevhelp-3-0 libdevmapper-event1.02.1 libdistro-info-perl libdmapsharing-3.0-2 libdns88 libdotconf1.0 libdvbpsi7
  libebackend-1.2-2 libebml3 libebook-1.2-13 libecal-1.2-11 libecore1 libedata-book-1.2-13 libedata-cal-1.2-15 libedataserver-1.2-16
  libedataserverui-3.0-1 libeina1 libemail-valid-perl libencode-locale-perl libepc-1.0-3 libepc-ui-1.0-3 libept1.4.12 libescpr1 libev4
  libeval-closure-perl libevdocument3-4 libevent-2.0-5 libevent-perl libevs4 libevview3-3 libexiv2-12 libexosip2-7 libexporter-lite-perl
  libexttextcat-data libexttextcat0 libfakechroot libfarstream-0.1-0 libfdk-aac0 libfdt1 libfile-basedir-perl libfile-desktopentry-perl
  libfile-fcntllock-perl libfile-listing-perl libfile-mimeinfo-perl libfltk-images1.3 libfltk1.3 libfolks-eds25 libfolks-telepathy25 libfolks25
  libfont-afm-perl libgail-3-0 libgcj13 libgcj13-awt libgck-1-0 libgconf-2-4 libgconf2-doc libgcr-3-1 libgcr-3-common libgd2-xpm libgdata13
  libgdata2.1-cil libgdict-common libgdk-pixbuf2.0-0 libgdk-pixbuf2.0-common libgdk-pixbuf2.0-dev libgegl-0.2-0 libgeocode-glib0 libgettextpo0 libgexiv2-1
  libgirepository-1.0-1 libgjs0b libgkeyfile1.0-cil libgladeui-2-0 libgladeui-common libglapi-mesa libglew1.7 libglib2.0-bin libgmime-2.6-0
  libgmime2.6-cil libgmp10 libgnome-bluetooth10 libgnome-desktop-3-2 libgnome-keyring-common libgnome-media-profiles-3.0-0 libgnome-menu-3-0 libgnomekbd7
  libgnutls-openssl27 libgnutlsxx27 libgoa-1.0-0 libgoa-1.0-common libgphoto2-l10n libgraphite2-2.0.0 libgrilo-0.1-0 libgs9 libgs9-common libgssdp-1.0-3
  libgstreamer-plugins-bad0.10-0 libgtk-3-0 libgtk-3-bin libgtk-3-common libgtk-3-dev libgtk-3-doc libgtk-sharp-beans-cil libgtk-vnc-2.0-0
  libgtkhtml-4.0-0 libgtkhtml-4.0-common libgtkhtml-editor-4.0-0 libgtkmm-3.0-1 libgtksourceview-3.0-0 libgtksourceview-3.0-common libgucharmap-2-90-7
  libgudev1.0-cil libgupnp-1.0-4 libgupnp-av-1.0-2 libgupnp-igd-1.0-4 libgusb2 libgvnc-1.0-0 libgweather-3-0 libgwenhywfar-data libgwenhywfar60 libgxps2
  libhcrypto4-heimdal libheimbase1-heimdal libhtml-form-perl libhtml-format-perl libhttp-cookies-perl libhttp-daemon-perl libhttp-date-perl
  libhttp-message-perl libhttp-negotiate-perl libhunspell-1.3-0 libicu48 libimobiledevice2 libio-aio-perl libisc84 libisccc80 libisccfg82 libiscsi1
  libiso9660-8 libisoburn1 libitm1 libjavascriptcoregtk-1.0-0 libjavascriptcoregtk-3.0-0 libjbig0 libjs-sphinxdoc libjs-underscore libjson0 libjte1
  libkadm5clnt-mit8 libkadm5srv-mit8 libkarma0 libkdb5-6 libkmod2 libkpathsea6 liblapack3 liblavfile-2.0-0 liblavjpeg-2.0-0 liblavplay-2.0-0 liblcms2-2
  liblensfun-data liblensfun0 liblinear-tools liblinear1 liblinphone4 liblockfile-bin liblogsys4 liblvm2app2.2 liblwp-mediatypes-perl
  liblwp-protocol-https-perl liblwres80 liblzma5 libmaa3 libmagick++5 libmagickcore5 libmagickcore5-extra libmagickwand5 libmath-bigint-perl
  libmath-round-perl libmatroska5 libmediastreamer1 libmhash2 libminiupnpc5 libmission-control-plugins0 libmjpegutils-2.0-0 libmodule-implementation-perl
  libmodule-runtime-perl libmono-2.0-1 libmono-2.0-dev libmono-accessibility4.0-cil libmono-cairo4.0-cil libmono-codecontracts4.0-cil
  libmono-compilerservices-symbolwriter4.0-cil libmono-corlib4.0-cil libmono-csharp4.0-cil libmono-custommarshalers4.0-cil libmono-data-tds4.0-cil
  libmono-debugger-soft2.0-cil libmono-debugger-soft4.0-cil libmono-http4.0-cil libmono-i18n-cjk4.0-cil libmono-i18n-mideast4.0-cil
  libmono-i18n-other4.0-cil libmono-i18n-rare4.0-cil libmono-i18n-west4.0-cil libmono-i18n4.0-all libmono-i18n4.0-cil libmono-ldap4.0-cil
  libmono-management4.0-cil libmono-messaging-rabbitmq4.0-cil libmono-messaging4.0-cil libmono-microsoft-build-engine4.0-cil
  libmono-microsoft-build-framework4.0-cil libmono-microsoft-build-tasks-v4.0-4.0-cil libmono-microsoft-build-utilities-v4.0-4.0-cil
  libmono-microsoft-csharp4.0-cil libmono-microsoft-visualc10.0-cil libmono-microsoft-web-infrastructure1.0-cil libmono-npgsql4.0-cil
  libmono-opensystem-c4.0-cil libmono-oracle4.0-cil libmono-peapi4.0-cil libmono-posix4.0-cil libmono-rabbitmq4.0-cil libmono-relaxng4.0-cil
  libmono-security4.0-cil libmono-sharpzip4.84-cil libmono-simd4.0-cil libmono-sqlite4.0-cil libmono-system-componentmodel-composition4.0-cil
  libmono-system-componentmodel-dataannotations4.0-cil libmono-system-configuration-install4.0-cil libmono-system-configuration4.0-cil
  libmono-system-core4.0-cil libmono-system-data-datasetextensions4.0-cil libmono-system-data-linq4.0-cil libmono-system-data-services-client4.0-cil
  libmono-system-data-services4.0-cil libmono-system-data4.0-cil libmono-system-design4.0-cil libmono-system-drawing-design4.0-cil
  libmono-system-drawing4.0-cil libmono-system-dynamic4.0-cil libmono-system-enterpriseservices4.0-cil libmono-system-identitymodel-selectors4.0-cil
  libmono-system-identitymodel4.0-cil libmono-system-ldap4.0-cil libmono-system-management4.0-cil libmono-system-messaging4.0-cil
  libmono-system-net4.0-cil libmono-system-numerics4.0-cil libmono-system-runtime-caching4.0-cil libmono-system-runtime-durableinstancing4.0-cil
  libmono-system-runtime-serialization-formatters-soap4.0-cil libmono-system-runtime-serialization4.0-cil libmono-system-runtime4.0-cil
  libmono-system-security4.0-cil libmono-system-servicemodel-discovery4.0-cil libmono-system-servicemodel-routing4.0-cil
  libmono-system-servicemodel-web4.0-cil libmono-system-servicemodel4.0-cil libmono-system-serviceprocess4.0-cil libmono-system-transactions4.0-cil
  libmono-system-web-abstractions4.0-cil libmono-system-web-applicationservices4.0-cil libmono-system-web-dynamicdata4.0-cil
  libmono-system-web-extensions-design4.0-cil libmono-system-web-extensions4.0-cil libmono-system-web-routing4.0-cil libmono-system-web-services4.0-cil
  libmono-system-web4.0-cil libmono-system-windows-forms-datavisualization4.0-cil libmono-system-windows-forms4.0-cil libmono-system-xaml4.0-cil
  libmono-system-xml-linq4.0-cil libmono-system-xml4.0-cil libmono-system4.0-cil libmono-tasklets4.0-cil libmono-web4.0-cil libmono-webbrowser2.0-cil
  libmono-webbrowser4.0-cil libmono-webmatrix-data4.0-cil libmono-windowsbase4.0-cil libmount1 libmozjs10d libmozjs17d libmozjs185-1.0 libmpeg2encpp-2.0-0
  libmplex2-2.0-0 libmtdev1 libmtp-common libmtp-runtime libmtp9 libmupen64plus2 libmusicbrainz-discid-perl libmusicbrainz5-0 libmutter0 libmx-1.0-2
  libmx-bin libmx-common libmysqlclient18 libnatpmp1 libnautilus-extension1a libnet-domain-tld-perl libnet-http-perl libnet-ip-minimal-perl libnetcf1
  libnetfilter-conntrack3 libnettle4 libnewtonsoft-json4.5-cil libnice10 libnl-3-200 libnl-genl-3-200 libnl-route-3-200 libnm-glib4 libnm-gtk-common
  libnm-gtk0 libnm-util2 libnotify4 libnspr4 libnss-winbind libnss3 libnuma1 libnunit2.6-cil liboauth0 libodbc1 liboobs-1-5 libopal3.10.4 libopenal-data
  libopus0 libosip2-7 libp11-2 libp11-kit-dev libp11-kit0 libpackage-stash-xs-perl libpackagekit-glib2-14 libpam-cap libpam-modules-bin libpam-winbind
  libpanel-applet-4-0 libparams-classify-perl libpcre3-dev libpcrecpp0 libpeas-1.0-0 libpeas-common libperl5.14 libpipeline1 libpload4 libpodofo0.9.0
  libpoe-component-resolver-perl libpoppler-glib8 libpoppler19 libportsmf0 libpostproc52 libprocps0 libpst4 libpt2.10.4 libptexenc1 libpython2.7
  libqt4-declarative libqtassistantclient4 libqtdbus4 libqtwebkit4 libquadmath0 libquicktime2 libquorum4 libquvi-scripts libquvi7 libraptor2-0 librasqal3
  libraw5 libregexp-reggrp-perl libreoffice libreoffice-base libreoffice-base-core libreoffice-calc libreoffice-common libreoffice-core libreoffice-draw
  libreoffice-emailmerge libreoffice-evolution libreoffice-filter-binfilter libreoffice-filter-mobiledev libreoffice-gnome libreoffice-gtk
  libreoffice-help-en-us libreoffice-impress libreoffice-java-common libreoffice-math libreoffice-officebean libreoffice-report-builder-bin
  libreoffice-style-galaxy libreoffice-style-tango libreoffice-writer libresid-builder0c2a librest-0.7-0 librest-extras-0.7-0 librhythmbox-core6 librpm3
  librpmbuild3 librpmio3 librpmsign1 libruby1.9.1 libsaamf3 libsackpt3 libsaclm3 libsaevt3 libsalck3 libsam4 libsamsg4 libsane-common
  libsane-extras-common libsatmr3 libsbsms10 libseed-gtk3-0 libsidplay2 libsigsegv2 libsocialweb-client2 libsocialweb-common libsocialweb-service
  libsocialweb0 libsocket-getaddrinfo-perl libsocket-perl libsonic0 libsoundtouch0 libsox2 libspeechd2 libspice-client-glib-2.0-1
  libspice-client-gtk-2.0-1 libspice-server1 libssl-doc libssl1.0.0 libstdc++6-4.7-dev libsvm-tools libswitch-perl libswscale2 libsystemd-daemon0
  libsystemd-login0 libtagc0 libtelepathy-farstream2 libtelepathy-logger2 libtest-warn-perl libtinfo-dev libtinfo5 libtirpc1 libtokyocabinet9 libtotem-pg4
  libtotem0 libtqsllib1 libtracker-sparql-0.14-0 libtree-dagnode-perl libts-dev libucommon5 libumfpack5.4.0 libunique-3.0-0 libupnp6 libusbredirhost1
  libusbredirparser0 libv4lconvert0 libverto-libev1 libverto1 libvisio-0.0-0 libvlccore5 libvo-aacenc0 libvo-amrwbenc0 libvorbisidec1 libvotequorum4
  libvpx1 libvte-2.90-9 libvte-2.90-common libwacom-common libwacom2 libwebkitgtk-1.0-0 libwebkitgtk-1.0-common libwebkitgtk-3.0-0 libwebkitgtk-3.0-common
  libwebp2 libwebrtc-audio-processing-0 libwildmidi-config libwireshark-data libwireshark2 libwiretap2 libwnck-3-0 libwnck-3-common libwpd-0.9-9
  libwpg-0.2-2 libwps-0.2-2 libwsutil2 libwv-1.2-4 libwww-robotrules-perl libx11-doc libx11-protocol-perl libx264-123 libx264-124 libx264-130 libx264-132
  libxalan2-java libxcb-composite0 libxcb-glx0 libxcb-shape0 libxcb-shm0-dev libxcb-util0 libxen-4.1 libxml-commons-external-java
  libxml-commons-resolver1.1-java libxml-sax-base-perl libxmlrpc-c++4 libxmlrpc-core-c3 libxz-java libyajl2 libyaml-0-2 libyaml-perl libyelp0 libzrtpcpp2
  libzvbi-common libzvbi0 lightsoff linphone-nogtk linux-headers-3.2.0-4-amd64 linux-headers-3.2.0-4-common linux-headers-amd64 linux-image-3.2.0-4-amd64
  linux-image-amd64 linux-kbuild-3.2 live-boot-doc live-config-doc live-manual-html mahjongg memtest86+ minissdpd mono-4.0-gac mono-dmcs mscompress
  multiarch-support mupen64plus-audio-all mupen64plus-audio-sdl mupen64plus-data mupen64plus-input-all mupen64plus-input-sdl mupen64plus-rsp-all
  mupen64plus-rsp-hle mupen64plus-rsp-z64 mupen64plus-ui-console mupen64plus-video-all mupen64plus-video-arachnoid mupen64plus-video-glide64
  mupen64plus-video-rice mupen64plus-video-z64 mutter-common mysql-client-5.5 mysql-server-5.5 mysql-server-core-5.5 mythes-en-us openarena-081-maps
  openarena-081-misc openarena-081-players openarena-081-players-mature openarena-081-textures openarena-085-data openarena-088-data packagekit
  packagekit-backend-aptcc packagekit-tools planner-data planner-doc poppler-data printer-driver-all printer-driver-c2050 printer-driver-c2esp
  printer-driver-cjet printer-driver-escpr printer-driver-foo2zjs printer-driver-gutenprint printer-driver-hpcups printer-driver-hpijs
  printer-driver-m2300w printer-driver-min12xxw printer-driver-pnm2ppa printer-driver-postscript-hp printer-driver-ptouch printer-driver-pxljr
  printer-driver-sag-gdi printer-driver-splix psutils python-aptdaemon.gtk3widgets python-aptdaemon.gtkwidgets python-bzrlib python-dbus-dev
  python-debianbts python-defer python-dnspython python-fpconst python-gi python-gi-cairo python-gi-dev python-gobject-2 python-gobject-2-dev
  python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-liblarch python-liblarch-gtk python-magic python-oauth
  python-packagekit python-pyatspi2 python-pyparsing python-repoze.lru python-routes python-setools python-simplejson python-soappy python-speechd
  python-spice-client-gtk python-wadllib python-webob python-zeitgeist python2.7 python2.7-dev python2.7-minimal qdbus quadrapassel remmina-common
  rhythmbox-data rpcbind rtkit ruby ruby1.9.1 shotwell-common smartdimmer software-properties-common sound-theme-freedesktop speech-dispatcher
  sphinx-common sphinx-doc swell-foop syslinux-themes-debian syslinux-themes-debian-wheezy tdb-tools telepathy-haze telepathy-logger telepathy-rakia
  tex-gyre ttf-marvosym wireless-regdb xbrlapi xorg-sgml-doctools xorriso xserver-xorg-input-mouse xserver-xorg-input-vmmouse xulrunner-17.0 yelp-xsl
  zeitgeist-core zenity-common
The following packages have been kept back:
  acroread-debian-files db4.8-util hibernate ia32-libs ia32-libs-gtk libboost-dev libboost-serialization-dev opensc wine
The following packages will be upgraded:
  abcde abiword abiword-common abiword-plugin-grammar abiword-plugin-mathview acpi acpi-fakekey acpi-support acpi-support-base acpid acroread-data
  acroread-dictionary-en acroread-l10n-en adduser alacarte alsa-base alsa-utils amb-plugins anacron analog ant ant-optional apache2 apache2-doc
  apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-common app-install-data apt apt-file apt-utils apt-xapian-index aptdaemon aptitude
  aqbanking-tools aspell aspell-en asterisk asterisk-config asterisk-core-sounds-en-gsm asterisk-doc asterisk-voicemail astyle at audacity audacity-data
  augeas-lenses augeas-tools autoconf autoconf-doc automake automake1.9 autopoint autotools-dev avahi-autoipd avahi-daemon avidemux avidemux-common
  avidemux-plugins aview ax25-tools banshee baobab base-files base-passwd bash bash-completion bc bind9-doc bind9-host bind9utils binfmt-support binutils
  bison bluez-cups bogofilter bogofilter-bdb bogofilter-common brasero brasero-common bridge-utils browser-plugin-gnash bsd-mailx bsdmainutils bsdutils
  busybox buzztard buzztard-data bwidget bzip2 bzr bzrtools ca-certificates calibre calibre-bin ccache cd-discid cdebootstrap cdparanoia cdrdao
  checkpolicy cheese cheese-common chromium-browser chromium-browser-inspector cifs-utils cl-asdf cli-common clisp comerr-dev common-lisp-controller
  console-common console-data console-tools consolekit coreutils cowbuilder cowdancer cpio cpp cpp-4.4 cpufrequtils cracklib-runtime crawl-common
  crawl-tiles cron cryptsetup cups cups-bsd cups-client cups-common cups-driver-gutenprint cups-pk-helper cups-ppdc cupsddk curl curlftpfs cvs cw dash
  dasher dasher-data dbus dbus-x11 dc dcraw dctrl-tools debconf debconf-i18n debhelper debian-archive-keyring debian-faq debian-keyring debianutils debirf
  debootstrap desktop-base desktop-file-utils devhelp devhelp-common devscripts dialog dict dictionaries-common diffstat diffutils djtools dkms dmidecode
  dmsetup dnsmasq-base dnsutils doc-debian docbook docbook-dsssl docbook-to-man docbook-utils docbook-xml docbook-xsl docbook-xsl-doc-html docky dosemu
  dosfstools dpatch dpkg dpkg-dev dput dvd+rw-tools dvi2ps dynagen dynamips e2fslibs e2fsprogs ebtables ed eject ekiga emacs23-bin-common emacs23-common
  emacs23-nox emacsen-common emdebian-archive-keyring empathy empathy-common eog epiphany-browser epiphany-browser-data epiphany-extensions esound-common
  espeak espeak-data ethtool evince evince-common evolution evolution-common evolution-data-server evolution-data-server-common evolution-exchange
  evolution-plugins evolution-webcal exif exiftags exim4 exim4-base exim4-config exim4-daemon-light exiv2 f-spot fakechroot fakeroot fancontrol fceu
  fcrackzip fdupes feynmf file file-roller finch findutils firmware-iwlwifi firmware-linux-free firmware-linux-nonfree flac flashrom fldigi flex
  fontconfig fontconfig-config foo2zjs foomatic-db foomatic-db-engine foomatic-db-gutenprint foomatic-filters fping freedesktop-sound-theme freeglut3
  freetds-common ftp fuse-utils g++ g++-4.4 g++-4.4-multilib g++-multilib gawk gcalctool gcc gcc-4.4 gcc-4.4-base gcc-4.4-doc gcc-4.4-multilib
  gcc-doc-base gcc-multilib gcj-jre gcj-jre-headless gconf-defaults-service gconf-editor gconf2 gconf2-common gddrescue gdebi gdebi-core gedit
  gedit-common gedit-plugins genisoimage geoclue geoclue-hostip geoclue-localnet geoclue-manual geoclue-yahoo geoip-database gettext gettext-base
  ghostscript ghostscript-cups gimp gimp-data git git-buildpackage git-core git-svn gitk gksu glade gnash gnash-common gnash-opengl
  gnome-accessibility-themes gnome-applets-data gnome-backgrounds gnome-cards-data gnome-common gnome-control-center gnome-control-center-dev
  gnome-desktop-data gnome-dictionary gnome-disk-utility gnome-do gnome-do-plugins gnome-doc-utils gnome-games gnome-games-data gnome-games-extra-data
  gnome-icon-theme gnome-js-common gnome-keyring gnome-mag gnome-media gnome-menus gnome-nettool gnome-orca gnome-panel-data gnome-pkg-tools
  gnome-power-manager gnome-rdp gnome-screensaver gnome-screenshot gnome-search-tool gnome-session gnome-session-bin gnome-session-canberra
  gnome-session-common gnome-settings-daemon gnome-settings-daemon-dev gnome-system-log gnome-system-monitor gnome-system-tools gnome-terminal
  gnome-terminal-data gnome-user-guide gnomint gnu-fdisk gnucash-docs gnuchess gnumeric gnumeric-common gnupg gnupg-agent gocr google-talkplugin gparted
  gpgv gpredict gpscorrelate grep groff-base grub-common grub-legacy gsfonts-x11 gsmartcontrol gstreamer0.10-alsa gstreamer0.10-buzztard
  gstreamer0.10-buzztard-doc gstreamer0.10-doc gstreamer0.10-ffmpeg gstreamer0.10-ffmpeg-dbg gstreamer0.10-fluendo-mp3 gstreamer0.10-gnonlin
  gstreamer0.10-gnonlin-dbg gstreamer0.10-gnonlin-doc gstreamer0.10-nice gstreamer0.10-plugins-bad gstreamer0.10-plugins-bad-dbg
  gstreamer0.10-plugins-bad-doc gstreamer0.10-plugins-base gstreamer0.10-plugins-base-apps gstreamer0.10-plugins-base-dbg gstreamer0.10-plugins-base-doc
  gstreamer0.10-plugins-good gstreamer0.10-plugins-good-dbg gstreamer0.10-plugins-good-doc gstreamer0.10-plugins-ugly gstreamer0.10-plugins-ugly-dbg
  gstreamer0.10-plugins-ugly-doc gstreamer0.10-pulseaudio gstreamer0.10-tools gstreamer0.10-x gtg gthumb gthumb-data gtk2-engines gtk2-engines-pixbuf
  gucharmap guile-1.6 guile-1.6-libs guile-1.8-libs gvfs gvfs-backends gvfs-bin gzip hal hamster-applet hardinfo hddtemp hdparm hfsprogs hostname hp-ppd
  hpijs hplip hplip-cups hplip-data htmldoc htmldoc-common iamerican ibritish iceweasel ifupdown ijsgutenprint imagemagick imagemagick-doc info
  initramfs-tools initscripts inkscape insserv install-info installation-report intltool iotop iproute ipsec-tools iptables iptraf iputils-ping
  ircd-hybrid irssi isc-dhcp-client isc-dhcp-common isc-dhcp-server iscsitarget-dkms iso-codes ispell jack jadetex java-common jigdo-file keyanalyze
  keyboard-configuration keychain klibc-utils kpartx krb5-admin-server krb5-auth-dialog krb5-config krb5-doc krb5-kdc krb5-kdc-ldap krb5-multidev
  krb5-pkinit krb5-user lacheck lame latex-beamer latex-xcolor less lesstif2 lesstif2-dev lib32asound2 lib32bz2-1.0 lib32gcc1 lib32gomp1 lib32ncurses5
  lib32ncurses5-dev lib32nss-mdns lib32readline5 lib32stdc++6 lib32v4l-0 lib32z1 lib32z1-dev liba52-0.7.4 libaa1 libaa1-dev libacl1 libaften0
  libaiksaurus-1.2-0c2a libaiksaurus-1.2-data libaiksaurusgtk-1.2-0c2a libaio1 libalgorithm-diff-xs-perl libany-moose-perl libanyevent-perl libao-common
  libao4 libapache-dbi-perl libapache2-mod-apreq2 libapache2-mod-dnssd libapache2-mod-perl2 libapache2-mod-php5 libapache2-mod-python
  libapache2-request-perl libappconfig-perl libapr1 libapreq2 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapt-pkg-perl libaqbanking-data
  libarchive-zip-perl libart-2.0-2 libart-2.0-dev libart2.0-cil libasn1-8-heimdal libasound2 libasound2-dev libasound2-plugins libaspell15 libass4
  libasync-interrupt-perl libasyncns0 libatasmart4 libatk1.0-0 libatk1.0-data libatk1.0-dev libatk1.0-doc libatspi1.0-0 libattr1 libaudio-dev libaudio2
  libaudiofile-dev libaudit0 libaugeas0 libavahi-client-dev libavahi-client3 libavahi-common-data libavahi-common-dev libavahi-common3 libavahi-core7
  libavahi-glib-dev libavahi-glib1 libavahi-gobject0 libavahi-ui0 libavc1394-0 libax25 libb-hooks-endofscope-perl libb-keywords-perl libbind9-60
  libblas3gf libblkid1 libbluetooth3 libbml0 libboo2.0.9-cil libbrlapi0.5 libbs2b0 libbsd0 libburn4 libbusiness-paypal-api-perl
  libbusiness-tax-vat-validation-perl libbuzztard0 libbz2-1.0 libc-ares2 libc-bin libc-dev-bin libc6 libc6-dev libc6-dev-i386 libc6-i386 libcaca-dev
  libcaca0 libcache-fastmmap-perl libcairo-perl libcairo2 libcairo2-dev libcairomm-1.0-1 libcairomm-1.0-dev libcanberra-gtk0 libcanberra0 libcap-ng0
  libcap2 libcap2-bin libcapture-tiny-perl libccid libcdaudio1 libcddb-get-perl libcddb2 libcdparanoia0 libcdt4 libchm-bin libchm1 libck-connector0
  libclass-c3-perl libclass-c3-xs-perl libclass-insideout-perl libclass-inspector-perl libclass-method-modifiers-perl libclass-methodmaker-perl
  libclone-perl libclutter-1.0-0 libcolamd2.7.1 libcolor-calc-perl libcomedi0 libcomerr2 libcommon-sense-perl libcommons-beanutils-java
  libcommons-collections3-java libcommons-compress-java libcommons-digester-java libcommons-logging-java libconfig-inifiles-perl libconfig-json-perl
  libconfig-tiny-perl libconsole libcontextual-return-perl libconvert-asn1-perl libcoro-perl libcorosync4 libcpufreq-dev libcpufreq0 libcrack2 libcroco3
  libcrypt-openssl-bignum-perl libcrypt-openssl-random-perl libcrypt-openssl-rsa-perl libcrypt-passwdmd5-perl libcrypt-ssleay-perl libcss-minifier-xs-perl
  libcss-packer-perl libcups2 libcupscgi1 libcupsdriver1 libcupsimage2 libcupsmime1 libcupsppdc1 libcurl3 libcurl3-gnutls libcurses-perl libcwidget3
  libdata-optlist-perl libdata-structure-util-perl libdata-visitor-perl libdatetime-format-http-perl libdatetime-perl libdatetime-set-perl
  libdatetime-timezone-perl libdatrie1 libdb-dev libdb-je-java libdbd-mysql-perl libdbi-perl libdbus-1-3 libdbus-1-dev libdbus-glib-1-2 libdbus-glib-1-dev
  libdc1394-22 libdca0 libdebian-installer-extra4 libdebian-installer4 libdevel-globaldestruction-perl libdevel-size-perl libdevel-stacktrace-perl
  libdevel-symdump-perl libdevmapper1.02.1 libdigest-hmac-perl libdirac-decoder0 libdirac-encoder0 libdirectfb-1.2-9 libdirectfb-extra libdiscid0
  libdjvulibre-text libdjvulibre21 libdns69 libdpkg-perl libdrm-dev libdrm-intel1 libdrm-nouveau1a libdrm-radeon1 libdrm2 libdv4 libdvdcss2 libdvdnav4
  libdvdread4 libedit2 libelf1 libelfg0 libemail-address-perl libenca0 libenchant1c2a libengine-pkcs11-openssl libepc-common libesd0 libesd0-dev
  libespeak1 libevolution libexception-class-perl libexempi3 libexif12 libexpat1 libexpat1-dev libexpect-perl libfaac0 libfaad2 libfcgi-perl libfcgi0ldbl
  libffi-dev libffi5 libfftw3-3 libfile-homedir-perl libfile-libmagic-perl libfile-mmagic-perl libfile-slurp-perl libfile-which-perl libfilter-perl
  libfinance-quote-perl libflac++6 libflac8 libflickrnet2.2-cil libflite1 libfltk1.1 libfluidsynth1 libfontconfig1 libfontconfig1-dev libfontenc1
  libfreetype6 libfreetype6-dev libfribidi0 libfs6 libftdi-dev libftdi1 libfuse2 libgail-common libgail-dev libgail18 libgc1c2 libgcc1 libgcj-bc
  libgcj-common libgconf2-4 libgconf2-dev libgconf2.0-cil libgcrypt11 libgcrypt11-dev libgd-gd2-noxpm-perl libgdata-common libgdbm3 libgdict-1.0-6
  libgdiplus libgdome2-0 libgdome2-cpp-smart0c2a libgdu-gtk0 libgdu0 libgee2 libgeoclue0 libgeoip1 libgfortran3 libgif4 libgimp2.0 libgio-cil libgksu2-0
  libgl1-mesa-dev libgl1-mesa-dri libgl1-mesa-glx libglade2.0-cil libgladeui-1-9 libglib-perl libglib2.0-0 libglib2.0-cil libglib2.0-data libglib2.0-dev
  libglib2.0-doc libglibmm-2.4-1c2a libglibmm-2.4-dev libglu1-mesa libglu1-mesa-dev libgnome-desktop-2-17 libgnome-desktop-dev libgnome-keyring-dev
  libgnome-keyring0 libgnome-keyring1.0-cil libgnome-mag2 libgnome-menu2 libgnome-speech7 libgnome-vfs2.0-cil libgnome2-0 libgnome2-canvas-perl
  libgnome2-common libgnome2-dev libgnome2-perl libgnome2-vfs-perl libgnome2.24-cil libgnomecanvas2-0 libgnomecanvas2-common libgnomecanvas2-dev
  libgnomedesktop2.20-cil libgnomekbd-common libgnomeui-0 libgnomeui-common libgnomeui-dev libgnomevfs2-0 libgnomevfs2-common libgnomevfs2-dev
  libgnomevfs2-extra libgnupg-interface-perl libgnutls-dev libgnutls26 libgoffice-0.8-8 libgoffice-0.8-8-common libgomp1 libgpg-error-dev libgpg-error0
  libgpgme11 libgphoto2-2 libgphoto2-port0 libgpm2 libgpod-common libgpod4 libgraph4 libgsf-1-114 libgsf-1-common libgsl0ldbl libgsm0710-0 libgsm1
  libgssapi-krb5-2 libgssglue1 libgssrpc4 libgstbuzztard0 libgstreamer-plugins-base0.10-0 libgstreamer-plugins-base0.10-dev libgstreamer0.10-0
  libgstreamer0.10-0-dbg libgstreamer0.10-dev libgtk-vnc-1.0-0 libgtk2-perl libgtk2.0-0 libgtk2.0-bin libgtk2.0-cil libgtk2.0-common libgtk2.0-dev
  libgtk2.0-doc libgtkglext1 libgtkhtml3.14-19 libgtkimageview0 libgtkmathview0c2a libgtkmm-2.4-1c2a libgtkmm-2.4-dev libgtop2-7 libgtop2-common
  libgtop2-dev libguard-perl libgudev-1.0-0 libguile-ltdl-1 libgutenprint2 libgvc5 libgweather-common libhal-dev libhal-storage1 libhal1 libhamlib2
  libhpmud0 libhsqldb-java libhtml-packer-perl libhtml-parser-perl libhtml-tableextract-perl libhtml-tagcloud-perl libhtml-template-expr-perl
  libhtml-template-perl libhtml-tree-perl libhtml-treebuilder-xpath-perl libhttp-server-simple-perl libhx509-5-heimdal libhyphen0 libical0 libice-dev
  libice6 libicu44 libicu4j-java libidl-dev libidl0 libidn11 libidn11-dev libieee1284-3 libijs-0.35 libilmbase6 libimage-exif-perl libimage-exiftool-perl
  libio-pty-perl libio-socket-inet6-perl libio-socket-ssl-perl libio-stringy-perl libio-stty-perl libipc-run-perl libiptcdata0 libisc62 libisccc60
  libisccfg62 libisofs6 libiw30 libjack0 libjasper1 libjavascript-minifier-xs-perl libjavascript-packer-perl libjaxp1.3-java libjaxp1.3-java-gcj
  libjbig2dec0 libjline-java libjpeg-progs libjpeg62 libjpeg8 libjs-jquery libjs-yui libjson-any-perl libjson-glib-1.0-0 libjson-perl libjson-xs-perl
  libjtidy-java libk5crypto3 libkadm5clnt-mit7 libkadm5srv-mit7 libkate1 libkdb5-4 libkeyutils1 libklibc libkms1 libkrb5-26-heimdal libkrb5-3
  libkrb5support0 libktoblzcheck1c2a liblapack3gf liblcms1 libldap-2.4-2 liblink-grammar4 liblircclient0 liblist-moreutils-perl liblocale-gettext-perl
  liblocales-perl liblockfile1 liblog-dispatch-perl liblog4c3 liblog4cxx10 libloudmouth1-0 liblouis-data liblouis2 liblqr-1-0 libltdl-dev libltdl7
  liblua5.1-0 liblua5.1-0-dev liblucene2-java liblwres60 liblzo2-2 libmad0 libmagic1 libmagick++3 libmagickcore3 libmagickcore3-extra libmagickwand3
  libmailtools-perl libmeanwhile1 libmime-tools-perl libmime-types-perl libmimic0 libmms0 libmng1 libmodplug1 libmodule-find-perl libmodule-starter-perl
  libmono-accessibility2.0-cil libmono-addins-gui0.2-cil libmono-addins0.2-cil libmono-c5-1.1-cil libmono-cairo2.0-cil libmono-cecil-private-cil
  libmono-corlib2.0-cil libmono-cscompmgd8.0-cil libmono-data-tds2.0-cil libmono-db2-1.0-cil libmono-i18n-west2.0-cil libmono-i18n2.0-cil
  libmono-ldap2.0-cil libmono-management2.0-cil libmono-messaging-rabbitmq2.0-cil libmono-messaging2.0-cil libmono-microsoft-build2.0-cil
  libmono-microsoft8.0-cil libmono-npgsql2.0-cil libmono-oracle2.0-cil libmono-peapi2.0-cil libmono-posix2.0-cil libmono-rabbitmq2.0-cil
  libmono-relaxng2.0-cil libmono-security2.0-cil libmono-sharpzip2.6-cil libmono-sharpzip2.84-cil libmono-simd2.0-cil libmono-sqlite2.0-cil
  libmono-system-data-linq2.0-cil libmono-system-data2.0-cil libmono-system-ldap2.0-cil libmono-system-messaging2.0-cil libmono-system-runtime2.0-cil
  libmono-system-web-mvc1.0-cil libmono-system-web-mvc2.0-cil libmono-system-web2.0-cil libmono-system2.0-cil libmono-tasklets2.0-cil libmono-wcf3.0-cil
  libmono-windowsbase3.0-cil libmono-winforms2.0-cil libmono-zeroconf1.0-cil libmono2.0-cil libmoose-perl libmouse-perl libmp3lame0 libmpc2 libmpcdec6
  libmpfr4 libmpg123-0 libmusicbrainz3-6 libmysqlclient-dev libmysqlclient16 libmythes-1.2-0 libnamespace-autoclean-perl libnamespace-clean-perl
  libncurses5 libncurses5-dev libncursesw5 libncursesw5-dev libndesk-dbus-glib1.0-cil libndesk-dbus1.0-cil libneon27 libneon27-gnutls libnet-daemon-perl
  libnet-dbus-perl libnet-dns-perl libnet-ip-perl libnet-ldap-perl libnet-libidn-perl libnet-netmask-perl libnet-oauth-perl libnet-snmp-perl
  libnet-ssleay-perl libnet1 libnet1-dev libnet6-1.3-0 libnetaddr-ip-perl libnetpbm10 libnewt0.52 libnfnetlink0 libnfsidmap2 libnl1 libnm-glib-dev
  libnm-glib-vpn-dev libnm-glib-vpn1 libnm-util-dev libnotify-dev libnotify0.4-cil libnspr4-0d libnss-mdns libnss3-1d libnunit-cil-dev libofa0 libogg0
  liboobs-1-dev libopenais3 libopenal1 libopencore-amrnb0 libopencore-amrwb0 libopenct1 libopenexr6 libopenjpeg2 libopenraw1 libopenrawgnome1 libopts25
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4 April 2014

Daniel Pocock: Best real-time communication (RTC / VoIP) softphone on the Linux desktop?

The Debian community has recently started discussing the way to choose the real-time communications (RTC/VoIP) desktop client for Debian 8 (jessie) users. Debian 7 (wheezy), like Fedora, ships GNOME as the default desktop and the GNOME Empathy client is installed by default with it. Simon McVittie, Empathy package maintainer has provided a comprehensive response to the main discussion points indicating that the Empathy project comes from an Instant Messaging (IM) background (it is extremely easy to setup and use for XMPP chat) but is not a strong candidate for voice and video. Just how to choose an RTC/VoIP client then? One question that is not answered definitively is just who should choose the default RTC client. Some people have strongly argued that the maintainers of individual desktop meta-packages should choose as they see fit. Personally, I don't agree with this viewpoint and it is easy to explain why. Just imagine the maintainers of GNOME choose one RTC application and the maintainers of XFCE choose an alternative and these two RTC applications don't talk to each other. If a GNOME user wants to call an XFCE user, do they have to go to extra effort to get an extra package installed? Do they even have to change their desktop? For power users these questions seem trivial but for many of our friends and family who we would like to contact with free software, it is not amusing. When the goal of the user is to communicate freely and if they are to remain free to choose any of the desktops then a higher-level choice of RTC client (or at least a set of protocols that all default clients must support) becomes essential. Snail mail to the rescue? There are several friends and family I want to be able to call with free software. The only way I could make it accessible to them was to burn self-booting Debian Live desktop DVDs with an RTC client pre-configured. Once again, as a power-user maybe I have the capability to do this - but is this an efficient way to overcome those nasty proprietary RTC clients, burning one DVD at a time and waiting for it to be delivered by snail mail? A billion browsers can't be wrong WebRTC has been in the most recent stable releases of Firefox/Iceweasel and Chrome/Chromium for over a year now. Many users already have these browsers thanks to automatic updates. It is even working well on the mobile versions of these browsers. In principle, WebRTC relies on existing technologies such as the use of RTP as a transport for media streams. For reasons of security and call quality, the WebRTC standard mandates the use of several more recent standards and existing RTC clients simply do not interoperate with WebRTC browsers. It really is time for proponents of free software to decide if they want to sink or swim in this world of changing communications technology. Browsers will not dumb-down to support VoIP softphones that were never really finished in the first place. Comparing Empathy and Jitsi There are several compelling RTC clients to choose from and several of them are now being compared on the Debian wiki. Only Jitsi stands out offering the features needed for a world with a billion WebRTC browser users.
Feature Empathy WebRTC requirement? Comments
Internet Connectivity Establishment (ICE) and TURN (relay) Only for gmail XMPP accounts, and maybe not for much longer For all XMPP users with any standards-based TURN server, soon for SIP too Mandatory Enables effective discovery of NAT/firewall issues and refusal to place a call when there is a risk of one-way-audio. Some legacy softphones support STUN, which is only a subset of ICE/TURN.
AVPF X Mandatory Enables more rapid feedback about degrading network conditions, packet loss, etc to help variable bit rate codecs adapt and maximise call quality. Most legacy VoIP softphones support AVP rather than AVPF.
DTLS-SRTP X Mandatory for Firefox, soon for Chrome too DTLS-based peer-to-peer encryption of the media streams. Most legacy softphones support no encryption at all, some support the original SRTP mechanism based on SDES keys exchanged in the signalling path.
Opus audio codec X Strongly recommended. G.711 can also be used but does not perform well on low bandwidth/unreliable connections Opus is a variable bit rate codec the supercedes codecs like Speex, SILK, iLBC, GSM and CELT. It is the only advanced codec browsers are expected or likely to implement. Most of the legacy softphones support the earlier codec versions (such as GSM) and some are coded in such a way that they can't support any variable bit-rate codec at all.
Retrofitting legacy softphones with all of these features is no walk in the park. Some of them may be able to achieve compliance more easily by simply throwing away their existing media code and rebuilding on top of the WebRTC media stack used by the browsers However, the Jitsi community have already proven that their code can handle all of these requirements by using their media processing libraries to power their JitMeet WebRTC video conferencing server Dreams are great, results are better Several people have spoken out to say they want an RTC client that has good desktop integration (just like Empathy) but I'm yet to see any of them contribute any code to such an effort. Is this type of desktop integration the ultimate priority and stubbornly non-negotiable though? Is it more an example of zealous idealism that may snuff out hope of bringing the optimum communications tools into the hands of users? As for solving all the other problems facing free communications software, the Jitsi community have been at it for more than 10 years. Just have a look at their scorecard on Github to see what I mean. Jitsi lead developer Emil Ivov has a PhD in multimedia and is a regular participant in the IETF, taking on some of the toughest questions, like how to make a world with two protocols (SIP and XMPP) friendly for real users. A serious issue for all Linux distributions Communications technology is one of the most pervasive applications and also one of the least forgiving. Users have limited patience with phones that don't work, as the Australian Russell Crowe demonstrated in his infamous phone-throwing incident. Maximizing the number of possible users is the key factor that makes networks fail or succeed. It is a knife that cuts both ways: as the free software community struggles with this issue, it undermines our credibility on other issues and makes it harder to bring free desktops to our friends, families and workplaces. Do we really want to see the rest of our work in these areas undermined, especially when there is at least one extremely viable option knocking at the door?

8 March 2014

Martín Ferrari: Fun with the Linux desktop

Or, "Why 2014 will NOT be the year of Linux in the desktop". So, it happens that my mum (66 yo) has been a Debian user for over a year now. With highs and lows, she manages to do what she needs; sometimes I need to intervene. Today I thought I could send her a quick email explaining how to download using BitTorrent, because of reasons. So, as I was writing, I realised that in many torrent sites, you only get a magnet link these days. No problem! Click on the magnet link, at it should work automagically. Then I remembered: it works on my computer, because I've spent a couple of hours some time ago researching how to make FireFox work with magnet links, creating a custom script, etc. I hoped that by now this must have been solved, at least in Debian unstable. Wrong again. I created a new user in my computer, launched IceWeasel/FireFox and boom: I get a dialog asking me to select a program, not from a list of desktop applications, taken from one of the gazillion sources where applications are defined, but just from any place on the file system! (At least, now you don't need to go tweaking with the hidden FireFox configuration editor). I was very angry at the brainiac at Mozilla who thought it was a great idea to ignore the host system and do their own MIMEtype handling. And then, tried Chromium to see what would happen... And I get first a scary message telling me that it is going to use the super-obscure xdg-open program to open my link, and that it could harm my computer! It was followed by another very helpful dialog telling me something like:
Unable to detect the URI-scheme of "magnet:?xt=urn:btih:diePh6iengei4quaep4shai8ahshahnae9 oolahtetheir2bohmu1eelaChui1ohdahruegh4wief6PusahDae4ho oshahjoogai7bae9shuvei9shufeX4boog8neichi3OoDee5ei9Uori c6aingairepon9gok8Mee7uRahphah4EucoopheiYin4xe4lahn0goh"
Then the real fun started... I starting looking around to understand how this is supposed to work, I wanted to provide a patch! So, it turns out that if you add some values to GConf this should work. So, try to find where would that be. Read about GConf schemas, default and mandatory values, and their 10 possible locations. Find that Azureus provides an schema, use that to create one for Transmission. Then find that in fact, Transmission was providing defaults, which are not the same but work the same, and that they had an error there: yes, problem found! (#741069) No! It turns out that the Gnome desktop does not use that any more, and now they scan the .desktop (who knows in which of the 100 directory tress where .destop files are present) files for MIME handlers, and the transmission-gtk.desktop file had that correctly. So why does it not work? Well, it turns out that if I used gvfs-open instead of xdg-open, it did work! The thing is, I am running XFCE here, which is GTK based, but it is not Gnome: instead of gvfs-open, I was getting exo-open, which is it's brain-dead cousin, and can't do anything but files, email and web. It is fecking 2014, and we still don't have a sensible, unified way to select preferred applications. We still have incompatible, duplicated, incomplete, competing implementations. We have FreeDesktop doing one thing to try and unify criteria, which is then ignored or mis-implemented up and down by some desktops and applications. Some days I get really angry at the Free Software world. PS: I guess I will tell mum to copy&paste the links from the browser to the torrent client, but not today. I have already lost 4 hours of sleep on this.

1 March 2014

Michael Prokop: Jenkins on-demand slave selection through labels

Problem description: One of my customers had a problem with their Selenium tests in the Jenkins continuous integration system. While Perl s Test::WebDriver still worked just fine the Selenium tests using Ruby s selenium-webdriver suddenly reported failures. The problem was caused by Debian wheezy s upgrade of the Iceweasel web browser. Debian originally shipped Iceweasel version 17.0.10esr-1~deb7u1 in wheezy, but during a security-update version 24.3.0esr-1~deb7u1 was brought in through the wheezy-security channel. Because the selenium tests are used in an automated fashion in a quite large and long-running build pipeline we immediately rolled back to Iceweasel version 17.0.10esr-1~deb7u1 so everything can continue as expected. Of course we wanted to get the new Iceweasel version up and running, but we didn t want to break the existing workflow while working on it. This is where on-demand slave selection through labels comes in. Basics: As soon as you re using Jenkins slaves you can instruct Jenkins to run a specific project on a particular (slave) node. By attaching labels to your slaves you can also use a label instead of a specific node name, providing more flexibility and scalability (to e.g. avoid problems if a specific node is down or you want to scale to more systems). Then Jenkins decides which of the nodes providing the according label should be considered for job execution. In the following screenshot a job uses the selenium label to restrict its execution to the slaves providing selenium and currently there are two nodes available providing this label: TIP 1: Visiting $JENKINS_SERVER/label/$label/ provides a list of slaves that provide that given $label (as well as list of projects that use $label in their configuration), like:

TIP 2: Execute the following script on $JENKINS_SERVER/script to get a list of available labels of your Jenkins system:
import hudson.model.*
labels = Hudson.instance.getLabels()
labels.each  label -> println label.name  
Solution: In the according customer setup we re using the swarm plugin (with automated Debian deployment through Grml s netscript boot option, grml-debootstrap + Puppet) to automatically connect our Jenkins slaves to Jenkins master without any manual intervention. The swarm plugin allows you to define the labels through the -labels command line option. By using the NodeLabel Parameter plugin we can configure additional parameters in Jenkins jobs: node and label . The label parameter allows us to execute the jobs on the nodes providing the requested label: This is what we can use to gradually upgrade from the old Iceweasel version to the new one by keeping a given set of slaves at the old Iceweasel version while we re upgrading other nodes to the new Iceweasel version (same for the selenium-server version which we want to also control). We can include the version number of the Iceweasel and selenium-server packages inside the labels we announce through the swarm slaves, with something like:
if [ -r /etc/init.d/selenium-server ] ; then
  FLAGS="selenium"
  ICEWEASEL_VERSION="$(dpkg-query --show --showformat='$ Version ' iceweasel)"
  if [ -n "$ICEWEASEL_VERSION" ] ; then
    ICEWEASEL_FLAG="iceweasel-$ ICEWEASEL_VERSION%%.* "
    EXTRA_FLAGS="$EXTRA_FLAGS $ICEWEASEL_FLAG"
  fi
  SELENIUM_VERSION="$(dpkg-query --show --showformat='$ Version ' selenium-server)"
  if [ -n "$SELENIUM_VERSION" ] ; then
    SELENIUM_FLAG="selenium-$ SELENIUM_VERSION%-* "
    EXTRA_FLAGS="$EXTRA_FLAGS $SELENIUM_FLAG"
  fi
fi
Then by using -labels $FLAGS EXTRA_FLAGS in the swarm invocation script we end up with labels like selenium iceweasel-24 selenium-2.40.0 for the slaves providing the Iceweasel v24 and selenium v2.40.0 Debian packages and selenium iceweasel-17 selenium-2.40.0 for the slaves providing Iceweasel v17 and selenium v2.40.0. This is perfect for our needs, because instead of using the selenium label (which is still there) we can configure the selenium jobs that should continue to work as usual to default to the slaves with the iceweasel-17 label now. The development related jobs though can use label iceweasel-24 and fail as often as needed without interrupting the build pipeline used for production. To illustrate this here we have slave selenium-client2 providing Iceweasel v17 with selenium-server v2.40. When triggering the production selenium job it will get executed on selenium-client2, because that s the slave providing the requested labels: Whereas the development selenium job can point to the slaves providing Iceweasel v24, so it will be executed on slave selenium-client1 here: This setup allowed us to work on the selenium Ruby tests while not conflicting with any production build pipeline. By the time I m writing about this setup we ve already finished the migration to support Iceweasel v24 and the infrastructure is ready for further Iceweasel and selenium-server upgrades.

Vasudev Kamath: Gzipped response for CSS/JS with Apache and mod_uwsgi

So it may sound normal to receive compressed response for CSS/JS file from Apache2 but what I faced is completely different behavior, here I saw not just body of response but also header are getting compressed and send to browser and browser was unable to interpret the response there by leading page rendered without CSS and JS. That was long story short, so let me explain in detail the case and what I found out. I have hosted SILPA on my VPS using uWSGI. I had used till date using libapache2-mod-proxy-uwsgi plugin for which uWSGI should be using network socket and in Apache2 config I need ProxyPass directive pointing to uwsgi://host:port and everything used to work out of box. There is a drawback for using network socket in uWSGI that is limited amount of ports (65535) and possible clash with other services if we use wrong port number, additionally network sockets will be slower compared to the file socket so yesterday I thought of changing it to file socket and removed socket directive in the ini file for uWSGI application container for SILPA and here is where all problems started. My updated configuration can be seen in our documentation page that is if you are interested to look my configuration file :-).
Problem Reporting We got selected to Gsoc again this year and we have lot of students jumping in our channel #silpa on irc.freenode.net and yesterday night some students reported they are facing 500 internal server error and subsequently others mentioned there is no theme being rendered. I checked and found everything was fine for me only to notice that my browser was using cached content, and when I clear cache there I go everything vanished, no theme no css no javascript just plain html!!!.
Investigation So I thought I should investigate this and fired up firebug on my iceweasel to observe the network traffic. And below is what I observed in firebug network console!. No response headers So you can see no response header in the above image but there is a response and below how is response content visible on firebug. gzipped response Still weird part was when using wget/curl directly to get the CSS I was getting correct reply and the file, which is puzzling. So I went ahead opened the CSS url directly using browser and saved the resulting file. When I used file command on it, output suggested the saved file in gzip compressed!. I went ahead uncompressed it and opened the file and inside it I found response header and the response body! So what just happened? Did apache some how manage to compress entire respone not just response body? The more puzzling question was why did it work when I was using mod_proxy_uwsgi and failed when I switched to mod_uwsgi. I had no clue at this point why this behavior is coming up.
Possible Solution I was still not sure how to resolve this, and started searching in the network but nothing was coming up in search result which can explain me this. And finally I stumbled on a link which is totally unrelated but I saw the word mod_deflate in the content and wandered on my system to see if its enabled. Yes mod_deflate was enabled I just opened the conf file and saw following.
<IfModule mod_deflate.c>
       # these are known to be safe with MSIE 6
       AddOutputFilterByType DEFLATE text/html text/plain text/xml
       # everything else may cause problems with MSIE 6
       AddOutputFilterByType DEFLATE text/css
       AddOutputFilterByType DEFLATE application/x-javascript application/javascript application/ecmascript
       AddOutputFilterByType DEFLATE application/rss+xml
</IfModule>
Interesting so it suggests to compress css, javascript files etc. So I thought possibly its compressing the result of mod_uwsgi, yeah possibly so why not try disabling mod_deflate and check if it works well and good if not I'm not gonna loose anything. So I disabled mod_deflate and voila! Everything is working fine!
What might be the reason for this behavior? Well I'm not exactly sure but here is my assumption. The whole behavior depends on internal implementation of mod_uwsgi and mod_proxy_uwsgi module. To confirm this I switched back to use mod_proxy_uwsgi module and enabled mod_deflate and observed request response in Firebug network console and below is what I observed. Response with mod_proxy_uwsgi So response is still gziped but this time only response body was gziped and Content-Encoding field was set properly which makes browser to properly uncompress the response body and use it. So it seems like there is a difference between mod_uwsgi and mod_proxy_uwsgi implementation. mod_uwsgi was sending the response along with response headers which was compressed by mod_deflate there by rendering browser helpless to interpret the response. But mod_proxy_uwsgi seems to be only sending the response content without response body and this content was later compressed by mod_deflate and proper response headers were set by apache before sending it to browser. So now whose fault is this? Is it the bug in mod_uwsgi or, mod_deflate not being able to exclude response headers from compression? I've no clue! If you have a clue and you want to share it with me, please consider writing to me over email. My details are available in Contacts

Ben Armstrong: Invisible CSS animations on Iceweasel consuming CPU

Thanks to bernat on #debian @ irc.debian.org for helping me track down this bug and devise a workaround. When working on my wife s netbook, I noticed that when idling on Facebook in iceweasel 24.3.0esr-1, the process was taking far too much CPU. I then retested on a wheezy system with the release iceweasel from mozilla.d.n, which at that time was 26, and I later upgraded to 27. Same problem there, too, on both versions. In fact, it seems the slowdown was amplified by the fact that I was running iceweasel in vnc4server, not the worlds most efficient X implementation. Even with all these versions tested, I have yet to file a Debian bug, as I will need some time on a system where the slowdown is noticeable and I m using a current Debian version. But I wanted to post now to give props to bernat for his help. If you think you have this issue, go read his article linked above, which contains the workaround.

21 February 2014

Riku Voipio: Where the armel buildd time went

Wanna-build, wanna-build, which packages spent most time on armel buildd's since beginning of 2013?

package sum(build_time)
-------------------------+--------------
libreoffice 114 09:16:34
linux 113 02:58:50
gcc-4.8 064 01:21:09
webkitgtk 059 19:09:27
acl2 043 16:40:50
gcc-4.7 028 14:03:53
iceweasel 026 19:02:13
gcc-snapshot 026 01:31:21
openjdk-7 020 02:41:53
php5 019 16:13:22
llvm-toolchain-3.3 017 19:05:38
qt4-x11 017 02:57:09
espresso 016 03:50:37
pypy 015 07:07:25
icedove 014 18:57:08
insighttoolkit4 014 17:16:43
qtbase-opensource-src 014 12:39:09
llvm-toolchain-3.4 012 03:06:15
mono 011 22:30:13
atlas 011 20:40:54
qemu 011 17:11:09
calligra 011 16:05:55
gnuradio 011 15:19:35
resiprocate 011 10:14:56
llvm-toolchain-snapshot 011 02:04:44
libav 010 13:52:03
python2.7 009 18:58:33
ghc 009 18:28:48
gnat-4.8 009 13:59:57
axiom 009 12:40:24
cython 009 00:47:04
openjdk-6 008 16:38:14
oce 008 10:29:20
eglibc 008 06:04:26
ppl 007 20:48:45
root-system 007 17:32:16
openturns 007 10:12:53
gcl 007 08:02:42
gcc-4.6 007 02:50:48
k3d 007 00:36:11
python3.3 007 00:25:42
llvm-toolchain-3.2 007 00:17:59
vtk 006 17:53:28
samba 006 17:17:27
mysql-workbench 006 14:36:46
kde-workspace 006 07:31:12
gmsh 006 04:32:42
psi-plus 006 04:30:08
octave 006 04:17:22
paraview 006 04:13:25
Timeformat is "days HH:MM:SS". Our ridiculously stable mv78x00 buildd's have served well, but has come to become let them rest. Now, to find out how many of these top time consuming packages can build with parallel make and are not doing so already.

5 February 2014

Daniel Pocock: Debian SIP without reading the manual

Most people don't have time to read manuals. The Debian SIP service has a reasonably thorough user guide with screenshots but some people may just want to have this level of detail if they really have to troubleshoot a problem. WebRTC is the fastest way to start Just set up your db.debian.org RTC password and use it to log in to the https://rtc.debian.org site. It all runs in the browser, no plugin or configuration required. Firewall/NAT trouble The current range of WebRTC browsers seem to work well for consumer and small office networks with NAT routers or mobile/cell networks. Corporate networks with an outright block on UDP will be supported soon. Supported browsers The Chromium 31 package on wheezy appears to work fine and was used in some of the demos at DebConf13 For Iceweasel/Firefox users, it is not possible to use the version 17 package from wheezy at all. At the time of writing, Iceweasel 24 is in jessie and sid while version 27 is available upstream. Mozilla gradually introduced WebRTC support on both desktop and Android between versions 20 to 24 and it is still evolving. If you don't want to use Chromium and don't want to upgrade your desktop/laptop beyond wheezy, consider trying Firefox on an Android device. Your friends can call you too There is no excuse for them to pester you with proprietary solutions any more. They can dial your debian.org SIP address from https://freephonebox.net. You can even link to it from your web site or blog by adding the dial parameter to the URL, like https://freephonebox.net?dial=pocock%40debian.org Please complain Bug reports and questions are always welcome. A good place for questions or complaints where the cause of the bug is not obvious is the Free-RTC mailing list.

23 January 2014

Gunnar Wolf: Ligatured iceweasel

Ligatured iceweasel
I am not (yet?) reporting this as a bug as this happened with a several days old session open, and just while I was upgrading my Sid system, after a long time without doing so (probably since before the vacations started... In December 2013). But I cannot avoid sharing this interesting screenshot. Of course, this does not happen in other browsers. And AFAICT it only happens while reading the Debian Policy (either online or locally, even recoding it to UTF-8). Funniest thing, the Debian policy specifies no Javascript, no stylesheets at all... (Hey, and FWIW... Why is the online copy of the Debian policy still in iso-8859-1 It's not 1995 anymore...) [update] Of course, it's the default font, not only the Debian policy. Just as an example, the following text:
  1. <html><body><p>Ufffiii flat different!</p></body></html>
Yields the following output: [update 2] And, of course, after finishing the update process... I got a new version of Iceweasel. Restarted it, and everything is back to normal :-

22 January 2014

Daniel Pocock: Launching FreePhoneBox.net

The https://freephonebox.net service has now gone live. This is a great way for people without a SIP account to call those who do have one (like all the Debian Developers who got SIP on Saturday) using nothing more than a web browser (no plugin required). Not just voice, webcams too The freephonebox.net supports voice and video calls from leading web browsers with WebRTC support. Free calls made possible by free software The service itself runs on free software, including some of the following components: SIP users who want to receive calls from freephonebox.net users simply need to make sure they have SIP over TLS enabled for their domain. Calls from the phone box are anonymous but will always appear to come from the SIP address sip:anonymous@freephonebox.net. For Debian SIP users To make and receive WebRTC calls quickly and reliably:

20 January 2014

Enrico Zini: terminal-emulators

Quest for a terminal emulator The requirements I need a terminal emulator. This is a checklist of the features that I need: My experience is that getting all of this to work is not being as easy as it seems, so I'm creating this page to track progress. gnome-terminal I've been happily using this for years, and it did everything I needed, until some months ago it started to open new tabs in the terminal's working directory instead of the last tab's working directory. This is a big point of frustration for me. It also started opening https urls with Firefox, although the preferred browser was Chromium. There seemed to be no way to control it: I looked for firefox or iceweasel in all gconf and dconf settings and found nothing. The browser issue was fixed by accident when I used Xfce4's settings application to change the browser from Chromium to Firefox and then back to Chromium. update, thanks to Mathieu Parent, Josh Triplett, Peter De Wachter, Julien Cristau, and Charles Plessy: It is also possible to restore the "new tab opened inside the same directory of the last tab I was in" behaviour, by enabling "run command as a login shell" so that /etc/profile.d/vte.sh is run (thanks Mathieu Parent for the link). That in turn spawned extra cleanup work in my .bashrc/.bash_profile/.profile setup, which has been randomly evolving since even before my first Debian "buzz" system. I found that it was setting PROMPT_COMMAND to something else to set the terminal title, conflicting with what vte.sh wants to do. With regards to loading /etc/profile.d/vte.sh by default, Peter De Watcher sent pointers to relevant bugs: here, here, and here. An alternative strategy is to work using the prompt rather than PROMPT_COMMAND; an example is in Josh Triplett's .bashrc from git://joshtriplett.org/git/home. Josh Triplett also said:
To fix the browser launched for URLs, you either need to use a desktop environment following GNOME's mechanism for setting the default browser, or edit ~/.local/share/applications/mimeapps.list and make sure x-scheme-handler/http, x-scheme-handler/https, and x-scheme-handler/ftp are set to your preferred browser's desktop file basename under [Added Associations].
All my issues with gnome-terminal are now gone and I'm only too happy to go back to it. rxvt-unicode-256color urxvt took some work. This is where I got with configuration:
URxvt.font: xft:Monospace-10:antialias=true
URxvt.foreground: #aaaaaa
URxvt.background: black
URxvt.scrollBar_right: true
URxvt.cursorBlink: true
URxvt.perl-ext-common: default,matcher,tabbedex
URxvt.url-launcher: /usr/bin/x-www-browser
URxvt.matcher.button: 1
URxvt.perl-lib: /home/enrico/.urxvt/perl
URxvt.color0: black
URxvt.color1: #aa0000
URxvt.color2: #00aa00umask
URxvt.color3: #aa5500
URxvt.color4: #0000aa
URxvt.color5: #aa00aa
URxvt.color6: #00aaaa
URxvt.color7: #aaaaaa
URxvt.color8: #555555
URxvt.color9: #ff5555
URxvt.color10: #55ff55
URxvt.color11: #ffff55
URxvt.color12: #5555ff
URxvt.color13: #ff55ff
URxvt.color14: #55ffff
URxvt.color15: #ffffff
I got all of the tab behaviour that I need by "customizing" the tab script (yuck github :( ). Missing sakura Configuration is in .config/sakura/sakura.conf and these bits help:
colorset1_fore=rgb(170,170,170)
colorset1_back=rgb(0,0,0)
colorset1_opacity=99
colorset2_fore=rgb(0,0,0)
colorset2_back=rgb(254,254,254)
colorset2_opacity=99
font=Monospace 10
show_always_first_tab=No
scrollbar=false
fullscreen_key=F11
palette=linux
Missing lxterminal Configuration is in .config/lxterminal/lxterminal.conf and this is relevant to me:
[general]
fontname=DejaVu Sans Mono 10
fgcolor=#aaaaaaaaaaaa
disallowbold=false
cursorblinks=true
tabpos=top
hidescrollbar=false
hidemenubar=true
hideclosebutton=true
disablef10=true
disablealt=true
Also, to open a url directly you control+click it. Missing terminator Configuration is in .config/terminator/config and this is relevant to me:
[global_config]
  use_custom_url_handler = True
  custom_url_handler = x-www-browser
  inactive_color_offset = 1.0
[keybindings]
  close_term = None
  close_window = None
  copy = None
  cycle_next = None
  cycle_prev = None
  go_down = None
  go_next = None
  go_prev = None
  go_up = None
  group_all = None
  group_tab = None
  hide_window = None
  move_tab_left = None
  move_tab_right = None
  new_tab = None
  new_terminator = None
  new_window = None
  next_tab = None
  paste = None
  prev_tab = None
  reset_clear = None
  reset = None
  resize_down = None
  resize_left = None
  resize_right = None
  resize_up = None
  rotate_ccw = None
  rotate_cw = None
  scaled_zoom = None
  search = None
  split_horiz = None
  split_vert = None
  switch_to_tab_1 = <Alt>F1
  switch_to_tab_2 = <Alt>F2
  switch_to_tab_3 = <Alt>F3
  switch_to_tab_4 = <Alt>F4
  switch_to_tab_5 = <Alt>F5
  switch_to_tab_6 = <Alt>F6
  switch_to_tab_7 = <Alt>F7
  switch_to_tab_8 = <Alt>F8
  switch_to_tab_9 = <Alt>F9
  switch_to_tab_10 = <Alt>F10
  toggle_scrollbar = None
  toggle_zoom = None
  ungroup_all = None
  ungroup_tab = None
[profiles]
  <span class="createlink">default</span>
    palette = "#000000:#aa0000:#00aa00:#aa5500:#0000aa:#aa00aa:#00aaaa:#aaaaaa:#555555:#ff5555:#55ff55:#ffff55:#5555ff:#ff55ff:#55ffff:#ffffff"
    copy_on_selection = True
    icon_bell = False
    background_image = None
    show_titlebar = False
Missing update: Richard Hartmann pointed out that terminator's upstream maintainer now changed after the old one didn't have time any more, and it should have a release with a ton of improvements anytime soon. xfce4-terminal Configuration is in .config/xfce4/terminal, and this is relevant to me: terminalrc:
[Configuration]
FontName=Monospace 10
MiscAlwaysShowTabs=FALSE
MiscBell=FALSE
MiscBordersDefault=TRUE
MiscCursorBlinks=FALSE
MiscCursorShape=TERMINAL_CURSOR_SHAPE_BLOCK
MiscDefaultGeometry=80x24
MiscInheritGeometry=FALSE
MiscMenubarDefault=FALSE
MiscMouseAutohide=FALSE
MiscToolbarDefault=FALSE
MiscConfirmClose=TRUE
MiscCycleTabs=TRUE
MiscTabCloseButtons=TRUE
MiscTabCloseMiddleClick=TRUE
MiscTabPosition=GTK_POS_TOP
MiscHighlightUrls=TRUE
ShortcutsNoMenukey=TRUE
ShortcutsNoMnemonics=TRUE
ColorForeground=#aaaaaaaaaaaa
accels.scm:
(gtk_accel_path "<Actions>/terminal-window/goto-tab-1" "<Alt>F1")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-2" "<Alt>F2")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-3" "<Alt>F3")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-4" "<Alt>F4")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-5" "<Alt>F5")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-6" "<Alt>F6")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-7" "<Alt>F7")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-8" "<Alt>F8")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-9" "<Alt>F9")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-10" "<Alt>F10")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-11" "<Alt>F11")
(gtk_accel_path "<Actions>/terminal-window/goto-tab-12" "<Alt>F12")
update: Yves-Alexis Perez points out that to disable the F1 for help in the terminal, you need to remove the accelerator. I tried this and this and didn't have success, but I confess I did not dig too much into it. Although xfce4-terminal -e does not work as I expect, xfce4-terminal registers a wrapper for x-terminal-emulator that does the right thing with respect to -e (also thanks Yves-Alexis Perez). Missing roxterm Configuration is in .config/roxterm.sourceforge.net/ split in several files corresponding to profiles. This is a reasonable starting point for me: Profiles/Default:
[roxterm profile]
colour_scheme=Default
disable_menu_access=1
disable_menu_shortcuts=1
disable_tab_menu_shortcuts=0
tab_close_btn=0
hide_menubar=1
always_show_tabs=0
Colours/Default:
[roxterm colour scheme]
0=#000000000000
1=#aaaa00000000
2=#0000aaaa0000
3=#aaaa55550000
4=#00000000aaaa
5=#aaaa0000aaaa
6=#0000aaaaaaaa
7=#aaaaaaaaaaaa
8=#555555555555
9=#ffff55555555
10=#5555ffff5555
11=#ffffffff5555
12=#55555555ffff
13=#ffff5555ffff
14=#5555ffffffff
15=#ffffffffffff
palette_size=16
foreground=#aaaaaaaaaaaa
background=#000000000000
cursor=#cccccccccccc
bold=
dim=
Shortcuts/Default:
[roxterm shortcuts scheme]
File/New Window=
File/New Tab=
File/Close Window=
File/Close Tab=
Tabs/Previous Tab=
Tabs/Next Tab=
Edit/Copy=
Edit/Paste=
View/Zoom In=<Control>plus
View/Zoom Out=<Control>minus
View/Normal Size=<Control>0
View/Full Screen=F11
View/Scroll Up One Line=
View/Scroll Down One Line=
Help/Help=
Edit/Copy & Paste=
Search/Find...=
Search/Find Next=
Search/Find Previous=
File/New Window With Profile/Default=
File/New Tab With Profile/Default=
Tabs/Select_Tab_0=<Alt>F1
Tabs/Select_Tab_1=<Alt>F2
Tabs/Select_Tab_2=<Alt>F3
Tabs/Select_Tab_3=<Alt>F4
Tabs/Select_Tab_4=<Alt>F5
Tabs/Select_Tab_5=<Alt>F6
Tabs/Select_Tab_6=<Alt>F7
Tabs/Select_Tab_7=<Alt>F8
Tabs/Select_Tab_8=<Alt>F9
Tabs/Select_Tab_9=<Alt>F9
Tabs/Select_Tab_10=<Alt>F10
Tabs/Select_Tab_11=<Alt>F11
Tabs/Select_Tab_12=<Alt>F12
Global:
[roxterm options]
edit_shortcuts=0
prefer_dark_theme=1
colour_scheme=Default
warn_close=1
Missing Nothing of my initial requirements seems to be missing, really, so I'm sticking to it for a while to see what happens. The first itch to scratch is that when the menubar is hidden, the popup menu becomes the entire menubar contents, which does not fit the general use case to have a contextual menu with the most common shortcuts. I'll just declare it useless and get myself used to some new hotkey for starting a new terminal. update: after fixing my issues with gnome-terminal I've switched back to gnome-terminal: its interface feels less clunky as I'm already used to it. Other references Guillem Jover made a similar analysis in 2009, it can be found here. Thomas Koch mentioned that termit should be able to do all I need, and is scriptable in Lua. I like the sound of that, and it's definitely one I should look next time I find myself shopping for terminal emulators.

16 January 2014

Daniel Pocock: Get ready to try Debian SIP

Before going on to talk about SIP, there is one really important thing that must be emphasized: XMPP/Jabber is also in the roadmap. Some of the infrastructure that has already been deployed (the new RTC passwords in ud-ldap, the TURN server and the RADIUS server) is good for both SIP and XMPP use cases. All to be revealed on Sunday As mentioned in my recent blog about the Debian.org NAPTR record, more details will be coming in my talk at mini-DebConf Paris this weekend. Today I'm just going to describe some things to install for those who want a head start. Jitsi Jitsi has been around for many years (originally as SIP Communicator) and it is probably the most advanced desktop softphone in the free software world. Jitsi packages are in jessie and sid - why not install them now. If you don't want to pull in dependencies from jessie on your wheezy system, you can also download from upstream and run it standalone. WebRTC browsers I've prepared a JSCommunicator implementation based on the jscommunicator-web-phone package. To use it, you need the latest version of Iceweasel/Firefox or Chromium. As HTML5 WebRTC / RTCPeerConnection is an evolving standard, using a recent browser is essential. Jitsi configuration for sip:debian.org It is not open for users just yet, but this is how you will configure it when it is available. More details to come...
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25 December 2013

Petter Reinholdtsen: Debian Edu interview: Dominik George

The Debian Edu / Skolelinux project consist of both newcomers and old timers, and this time I was able to get an interview with a newcomer in the project who showed up on the IRC channel a few weeks ago to let us know about his successful installation of Debian Edu Wheezy in his School. Say hello to Dominik George. Who are you, and how do you spend your days? I am a 23 year-old student from Germany who has spent half of his life with open source. In "real life", I am, as already mentioned, a student in the fields of Computer Science, Electrical Engineering, Information Technologies and Anglistics. Due to my (only partially voluntary) huge engagement in the open source world, these things are a bit vacant right now however. I also have been working as a project teacher at a Gymasnium (public school) for various years now. I took up that work some time around 2005 when still attending that school myself and have continued it until today. I also had been running the (kind of very advanced) network of that school together with a team of very interested and talented students in the age of 11 to 15 years, who took the chance to learn a lot about open source and networking before I left the school to help building another school's informational education concept from scratch. That said, one might see me as a kind of "glue" between school kids and the elderly of teachers as well as between the open source ecosystem and the (even more complex) educational ecosystem. When I am not busy with open source or education, I like Geocaching and cycling. How did you get in contact with the Skolelinux / Debian Edu project? I think that happened some time around 2009 when I first attended FrOSCon and visited the project booth. I think I wasn't too interested back then because I used to have an attitude of disliking software that does too much stuff on its own. Maybe I was too inexperienced to realise the upsides of an "out-of-the-box" solution ;). The first time I actively talked to Skolelinux people was at OpenRheinRuhr 2011 when the BiscuIT project, a home-grewn software used by my school for various really cool things from timetables and class contact lists to lunch ordering, student ID card printing and project elections first got to a stage where it could have been published. I asked the Skolelinux guys running the booth if the project were interested in it and gave a small demonstration, but there wasn't any real feedback and the guys seemed rather uninterested. After I left the school where I developed the software, it got mostly lost, but I am now reimplementing it for my new school. I have reusability and compatibility in mind, and I hop there will be a new basis for contributing it to the Skolelinux project ;)! What do you see as the advantages of Skolelinux / Debian Edu? The most important advantage seems to be that it "just works". After overcoming some minor (but still very annoying) glitches in the installer, I got a fully functional, working school network, without the month-long hassle I experienced when setting all that up from scratch in earlier years. And above that, it rocked - I didn't have any real hardware at hand, because the school was just founded and has no money whatsoever, so I installed a combined server (main server, terminal services and workstation) in a VM on my personal notebook, bridging the LTSP network interface to the ethernet port, and then PXE-booted the Windows notebooks that were lying around from it. I could use 8 clients without any performance issues, by using a tiny little VM on a tiny little notebook. I think that's enough to say that it rocks! Secondly, there are marketing reasons. Life's bad, and so no politician will ever permit a setup described as "Debian, an universal operating system, with some really cool educational tools" while they will be jsut fine with "Skolelinux, a single-purpose solution for your school network", even if both turn out to be the very same thing (yes, this is unfair towards the Skolelinux project, and must not be taken too seriously - you get the idea, anyway). What do you see as the disadvantages of Skolelinux / Debian Edu? I have not been involved with Skolelinux long enough to really answer this question in a fair way. Thus, please allow me to put it in other words: "What do you expect from Skolelinux to keep liking it?" I can list a few points about that: I'm really sorry I cannot say much more about that :(! Which free software do you use daily? First of all, all software I use is free and open. I have abandoned all non-free software (except for firmware on my darned phone) this year. I run Debian GNU/Linux on all PC systems I use. On that, I mostly run text tools. I use mksh as shell, jupp as very advanced text editor (I even got the developer to help me write a script/macro based full-featured student management software with the two), mcabber for XMPP and irssi for IRC. For that overly coloured world called the WWW, I use Iceweasel (Firefox). Oh, and mutt for e-mail. However, while I am personally aware of the fact that text tools are more efficient and powerful than anything else, I also use (or at least operate) some tools that are suitable to bring open source to kids. One of these things is Jappix, which I already introduced to some kids even before they got aware of Facebook, making them see for themselves that they do not need Facebook now ;). Which strategy do you believe is the right one to use to get schools to use free software? Well, that's a two-sided thing. One side is what I believe, and one side is what I have experienced. I believe that the right strategy is showing them the benefits. But that won't work out as long as the acceptance of free alternatives grows globally. What I mean is that if all the kids are almost forced to use Windows, Facebook, Skype, you name it at home, they will not see why they would want to use alternatives at school. I have seen students take seat in front of a fully-functional, modern Debian desktop that could do anything their Windows at home could do, and they jsut refused to use it because "Linux sucks". It is something that makes the council of our city spend around 600000 to buy software - not including hardware, mind you - for operating school networks, and for installing a system that, as has been proved, does not work. For those of you readers who are good at maths, have you already found out how many lives could have been saved with that money if we had instead used it to bring education to parts of the world that need it? I have, and found it to be nothing less dramatic than plain criminal. That said, the only feasible way appears to be the bottom up method. We have to bring free software to kids and parents. I have founded an association named Teckids here in Germany that does just that. We organise several events for kids and adolescents in the area of free and open source software, for example the FrogLabs, which share staff with Teckids and are the youth programme of the Free and Open Source Software Conference (FrOSCon). We do a lot more than most other conferences - this year, we first offered the FrogLabs as a holiday camp for kids aged 10 to 16. It was a huge success, with approx. 30 kids taking part and learning with and about free software through a whole weekend. All of us had a lot of fun, and the results were really exciting. Apart from that, we are preparing a campaign that is supposed to bring the message of free alternatives to stuff kids use every day to them and their parents, e.g. the use of Jabber / Jappix instead of Facebook and Skype. To make that possible, we are planning to get together a team of clever kids who understand very well what their peers need and can bring it across to them. So we will have a peer-driven network of adolescents who teach each other and collect feedback from the community of minors. We then take that feedback and our own experience to work closely with open source projects, such as Skolelinux or Jappix, at improving their software in a way that makes it more and more attractive for the target group. At least I hope that we will have good cooperation with Skolelinux in the future ;)! So in conclusion, what I believe is that, if it weren't for the world being so bad, it should be very clear to the political decision makers that the only way to go nowadays is free software for various reasons, but I have learnt that the only way that seems to work is bottom up.

7 September 2013

Ben Armstrong: Wifi roaming on the move redux

It has been nearly six years with a netbook and five since I last wrote about wifi roaming from the bus to stay on irc without a costly celluar link during the daily commute. Since then, some readers have asked me to share my refinements to the method in a followup post. So here it is. The software On the server: On the client: Putting it together: on the client Make sure if you have a wireless manager installed (such as NetworkManager) it is configured to skip your wireless interface, disabled entirely, or if possible, removed. Set up /etc/wpa_supplicant/wpa_supplicant.conf and /etc/network/interfaces for roaming, as per the instructions in /usr/share/doc/wpasupplicant/README.modes.gz. Don t forget to add yourself to the netdev group if you are not in it already. In /etc/wpa_supplicant/wpa_supplicant.conf, list common names of open networks. Normally the catch-all network that associates with any essid, i.e. the first stanza below, works well. However, occasionally the strongest signal is neither one of the common networks nor an easily accessible network (e.g. web portals), so having a list of common open networks helps to quickly select from among those instead. The more you travel, the more of these will discover and add. Just use reconfigure from wpa_cli to reload your edited list each time you add a new one.
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
network= 
        key_mgmt=NONE
 
network= 
        ssid="default"
        key_mgmt=NONE
 
network= 
        ssid="linksys"
        key_mgmt=NONE
 
...
Since you ll be using ssh repeatedly to connect and it has to be fast, make sure your server is set up to accept your key and use ssh-add so that you only have to enter your ssh key password once. You can tweak isc-dhcp-client to make connections faster. In /etc/dhcp/dhclient.conf, use:
backoff-cutoff 1;
initial-interval 1;
Here are a few scripts I wrote to facilitate quick roaming from one open AP to another and reconnect to irssi running in screen, to break a connection and try the next one, and to recover from occasional lockups (more about that later). ~/bin/screen_reconnect This is a script to reconnect continuously via ssh to a screen session:
#!/bin/sh
reset
while ! ssh -t 10.9.8.7 'screen -UDr' 2>/dev/null ; do echo -n "." ; sleep .1 ; done
Just substitute the IP of your own server here. Using an IP instead of domain name makes the connection faster because a DNS lookup is not required. ~/bin/wifi_reassociate This script closes any open ssh sessions and informs wpa_supplicant to attempt to connect again.
#/bin/sh
/sbin/wpa_cli rea
killall ssh >/dev/null 2>&1
~/bin/wifi_killall This optional, somewhat ugly script addresses an issue I hope you never have. On my ASUS Eee PC 1001PX, occasionally scanning stops. When this happens, and I have never figured out why, apparently ACPI events are blocked. At this point wifi becomes unusable and ACPI sleep is inhibited. By trial and error I found that if you bring down the interface, kill all network-related processes, and bring it up again, ACPI events are unblocked and wifi is usable once more (and any pending request to sleep will finally happen). The script requires sudo, and to use the openbox key binding, gksudo.
#/bin/sh
sudo ifdown wlan0
# in case any of these are hung
sudo killall dhclient3
sudo killall wpa_cli
sudo killall wpa_action
sudo killall wpa_supplicant
# in case any of these are *really* hung
sleep 1
sudo killall -9 dhclient3
sudo killall -9 wpa_cli
sudo killall -9 wpa_action
sudo killall -9 wpa_supplicant
sudo dhclient -r
sudo ifup wlan0
Openbox Since certain actions need to be performed repeatedly and quickly, it is useful to have hotkeys bound in your window manager to the scripts. In ~/.config/openbox/rc.xml, key bindings for <alt>-r to reassociate and <alt>-d to disconnect a hung connection would look like:
  
<keyboard>
  <!-- My keybindings -->
  <keybind key="A-R">
    <action name="Execute">
        <execute>/home/synrg/bin/wifi_reassociate</execute>
    </action>
  </keybind>
  <keybind key="A-D">
    <action name="Execute">
        <execute>gksudo /home/synrg/bin/wifi_killall</execute>
    </action>
  </keybind>
</keyboard>
Putting it together: on the server There is very little to do here. Just start screen, and start irssi in screen. Running screen on the client as well as the server means you should either bind the screen meta keys to a different key sequence on each system, or else learn to press meta twice to pass through meta to the server screen as needed. I use the latter approach. Alternatively, you could use a tabbed terminal on the client, or separate terminals per client process instead of screen. This is a matter of personal taste. Ready to roam Here is a typical setup for roaming on the bus: In a terminal (I use urxvt), first ssh-add, then start screen with these three processes running in separate virtual terminals: March of the dots Most of the commute, just enjoy watching the dots march by, waiting for a new connection. If you estimate a connection is unusable, press <alt>-r to reassociate immediately, giving the next network a chance. If the connection is already firmly established, this might not work on the first try. If the dots don t resume immediately, wait a bit and press it again. This might take a few tries. Changing selected networks on the fly Use wpa_cli when you need to do some fine-tuning of network selections on the fly. While normally you can just watch the march of the dots until a connection is acquired, sometimes you can improve your chances of connecting to a good network by manually controlling the selected candidate networks here. For example, by watching the speed of the bus relative to known good APs, you can predict which networks are more likely to succeed. Rather than connect to any arbitrary network, you might select a specific one by id, and then later when it goes out of range, revert to the original configuration, e.g.
> select_network 5
...
> reconfigure
You can use tab-completion in wpa_cli to type these commands quickly or else just abbreviate the commands. Another common scenario is when you pass through a business area with many captive portal hotspots. These rarely make good choices because they either require a password not known to you or else you can t click through I agree in time before the bus moves on. In this case, you might just disable the catch-all stanza and let the common open network stanzas you listed ( default , linksys , etc.) do the work:
> disable_network 1
Become a type ahead wizard While running, a continuous stream of periods fills the screen, which provides you with a highly visible cue that no available APs are in range. When the movement stops, you know a connection is being attempted. While waiting to connect, you can type ahead any comments you want to make in the current irssi window (taking care to remember which one you are in!) While having periods interspersed in what you type may be disorienting at first, you get used to it. There is a point when a connection is first established and ssh is accepting input, but anything you type can no longer be seen while you re typing. Depending on whether the connection was completely successful or not, what you type now may or may not finally be sent. For best results, only type ahead before the dots stop moving. Eventually you can become skilled enough at this to type ahead a comment in one channel, switch channels with /win # and continue typing ahead in the new channel, all buffered until the next few seconds (or even fraction of a second) of connection time. Fine-tune antenna direction with wavemon When the bus has come to a standstill, you may find wavemon useful to pull in a weak signal. Because wavemon has continuously updated signal level and link quality bars, you can use it to fine-tune the antenna position. Just turn your laptop until the bars are at their maximum. Captive portals I have not figured out how to do any automation for this, so it really is a crapshoot, as it is likely the bus has moved on by the time you ve managed to manually navigate the login through a captive portal. But in rush hour, you may have the luxury of time to connect to these as you pass them. I have recently learned about the CoovaFX Firefox plugin which automates logins to captive portals. I m going to give it a try to see if it helps. Update: I can t recommend this plugin, as it is not compatible with Iceweasel >= 23.0. Also, the standard it is based on, WISPr, appears to have an uncertain future. That, coupled with the fact that the plugin appears to not be open source means I m still looking for alternatives. Summary If all of this sounds a bit nuts to you, well, it probably is. But after half a decade enjoying free access to irc from the bus, it all seems perfectly natural to me! If you try this method and like it, please let me know in the comments. Likewise, if you have any improvements to the process or scripts, please share them!

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