Search Results: "ag"

4 July 2020

Russ Allbery: Review: The Light Brigade

Review: The Light Brigade, by Kameron Hurley
Publisher: Saga
Copyright: 2019
ISBN: 1-4814-4798-X
Format: Kindle
Pages: 355
In the wake of the Blink, which left a giant crater where S o Paulo was, Dietz signed up for the military. To be a hero. To satisfy an oath of vengeance. To kill aliens. Corporations have consumed the governments that used to run Earth and have divided the world between them. Dietz's family, before the Blink, were ghouls in Tene-Silva territory, non-citizens who scavenged a precarious life on the margins. Citizenship is a reward for loyalty and a mechanism of control. The only people who don't fit into the corporate framework are the Martians, former colonists who went dark for ten years and re-emerged as a splinter group offering to use their superior technology to repair environmental damage to the northern hemisphere caused by corporate wars. When the Blink happens, apparently done with technology far beyond what the corporations have, corporate war with the Martians is the unsurprising result. Long-time SF readers will immediately recognize The Light Brigade as a response to Starship Troopers with far more cynical world-building. For the first few chapters, the parallelism is very strong, down to the destruction of a large South American city (S o Paulo instead of Buenos Aires), a naive military volunteer, and horrific basic training. But, rather than dropships, the soldiers in Dietz's world are sent into battle via, essentially, Star Trek transporters. These still very experimental transporters send Dietz to a different mission than the one in the briefing. Advance warning that I'm going to talk about what's happening with Dietz's drops below. It's a spoiler, but you would find out not far into the book and I don't think it ruins anything important. (On the contrary, it may give you an incentive to stick through the slow and unappealing first few chapters.) I had so many suspension of disbelief problems with this book. So many. This starts with the technology. The core piece of world-building is Star Trek transporters, so fine, we're not talking about hard physics. Every SF story gets one or two free bits of impossible technology, and Hurley does a good job showing the transporters through a jaundiced military eye. But, late in the book, this technology devolves into one of my least-favorite bits of SF hand-waving that, for me, destroyed that gritty edge. Technology problems go beyond the transporters. One of the bits of horror in basic training is, essentially, torture simulators, whose goal is apparently to teach soldiers to dissociate (not that the book calls it that). One problem is that I never understood why a military would want to teach dissociation to so many people, but a deeper problem is that the mechanics of this simulation made no sense. Dietz's training in this simulator is a significant ongoing plot point, and it kept feeling like it was cribbed from The Matrix rather than something translatable into how computers work. Technology was the more minor suspension of disbelief problem, though. The larger problem was the political and social world-building. Hurley constructs a grim, totalitarian future, which is a fine world-building choice although I think it robs some nuance from the story she is telling about how militaries lie to soldiers. But the totalitarian model she uses is one of near-total information control. People believe what the corporations tell them to believe, or at least are indifferent to it. Huge world events (with major plot significance) are distorted or outright lies, and those lies are apparently believed by everyone. The skepticism that exists is limited to grumbling about leadership competence and cynicism about motives, not disagreement with the provided history. This is critical to the story; it's a driver behind Dietz's character growth and is required to set up the story's conclusion. This is a model of totalitarianism that's familiar from Orwell's Nineteen Eighty-Four. The problem: The Internet broke this model. You now need North Korean levels of isolation to pull off total message control, which is incompatible with the social structure or technology level that Hurley shows. You may be objecting that the modern world is full of people who believe outrageous propaganda against all evidence. But the world-building problem is not that some people believe the corporate propaganda. It's that everyone does. Modern totalitarians have stopped trying to achieve uniformity (because it stopped working) and instead make the disagreement part of the appeal. You no longer get half a country to believe a lie by ensuring they never hear the truth. Instead, you equate belief in the lie with loyalty to a social or political group, and belief in the truth with affiliation with some enemy. This goes hand in hand with "flooding the zone" with disinformation and fakes and wild stories until people's belief in the accessibility of objective truth is worn down and all facts become ideological statements. This does work, all too well, but it relies on more information, not less. (See Zeynep Tufekci's excellent Twitter and Tear Gas if you're unfamiliar with this analysis.) In that world, Dietz would have heard the official history, the true history, and all sorts of wild alternative histories, making correct belief a matter of political loyalty. There is no sign of that. Hurley does gesture towards some technology to try to explain this surprising corporate effectiveness. All the soldiers have implants, and military censors can supposedly listen in at any time. But, in the story, this censorship is primarily aimed at grumbling and local disloyalty. There is no sign that it's being used to keep knowledge of significant facts from spreading, nor is there any sign of the same control among the general population. It's stated in the story that the censors can't even keep up with soldiers; one would have to get unlucky to be caught. And yet the corporation maintains preternatural information control. The place this bugged me the most is around knowledge of the current date. For reasons that will be obvious in a moment, Dietz has reasons to badly want to know what month and year it is and is unable to find this information anywhere. This appears to be intentional; Tene-Silva has a good (albeit not that urgent) reason to keep soldiers from knowing the date. But I don't think Hurley realizes just how hard that is. Take a look around the computer you're using to read this and think about how many places the date shows up. Apart from the ubiquitous clock and calendar app, there are dates on every file, dates on every news story, dates on search results, dates in instant messages, dates on email messages and voice mail... they're everywhere. And it's not just the computer. The soldiers can easily smuggle prohibited outside goods into the base; knowledge of the date would be much easier. And even if Dietz doesn't want to ask anyone, there are opportunities to go off base during missions. Somehow every newspaper and every news bulletin has its dates suppressed? It's not credible, and it threw me straight out of the story. These world-building problems are unfortunate, since at the heart of The Light Brigade is a (spoiler alert) well-constructed time travel story that I would have otherwise enjoyed. Dietz is being tossed around in time with each jump. And, unlike some of these stories, Hurley does not take the escape hatch of alternate worlds or possible futures. There is a single coherent timeline that Dietz and the reader experience in one order and the rest of the world experiences in a different order. The construction of this timeline is incredibly well-done. Time can only disconnect at jump and return points, and Hurley maintains tight control over the number of unresolved connections. At every point in the story, I could list all of the unresolved discontinuities and enjoy their complexity and implications without feeling overwhelmed by them. Dietz gains some foreknowledge, but in a way that's wildly erratic and hard to piece together fast enough for a single soldier to do anything about the plot. The world spins out of control with foreshadowing of grimmer and grimmer events, and then Hurley pulls it back together in a thoroughly satisfying interweaving of long-anticipated scenes and major surprises. I'm not usually a fan of time travel stories, but this is one of the best I've read. It also has a satisfying emotional conclusion (albeit marred for me by some unbelievable mystical technobabble), which is impressive given how awful and nasty Hurley makes this world. Dietz is a great first-person narrator, believably naive and cynical by turns, and piecing together the story structure alongside the protagonist built my emotional attachment to Dietz's character arc. Hurley writes the emotional dynamics of soldiers thoughtfully and well: shit-talking, fights, sudden moments of connection, shared cynicism over degenerating conditions, and the underlying growth of squad loyalty that takes over other motivations and becomes the reason to keep on fighting. Hurley also pulled off a neat homage to (and improvement on) Starship Troopers that caught me entirely by surprise and that I've hopefully not spoiled. This is a solid science fiction novel if you can handle the world-building. I couldn't, but I understand why it was nominated for the Hugo and Clarke awards. Recommended if you're less picky about technological and social believability than I am, although content warning for a lot of bloody violence and death (including against children) and a horrifically depressing world. Rating: 6 out of 10

3 July 2020

Michael Prokop: Grml 2020.06 Codename Ausgehfuahangl

We did it again , at the end of June we released Grml 2020.06, codename Ausgehfuahangl. This Grml release (a Linux live system for system administrators) is based on Debian/testing (AKA bullseye) and provides current software packages as of June, incorporates up to date hardware support and fixes known issues from previous Grml releases. I am especially fond of our cloud-init and qemu-guest-agent integration, which makes usage and automation in virtual environments like Proxmox VE much more comfortable. Once as the Qemu Guest Agent setting is enabled in the VM options (also see Proxmox wiki), you ll see IP address information in the VM summary: Screenshot of qemu guest agent integration Using a cloud-init drive allows using an SSH key for login as user "grml", and you can control network settings as well: Screenshot of cloud-init integration It was fun to focus and work on this new Grml release together with Darsha, and we hope you enjoy the new Grml release as much as we do!

Norbert Preining: KDE/Plasma Status Update 2020-07-04

Great timing for 4th of July, here is another status update of KDE/Plasma for Debian. Short summary: everything is now available for Debian sid and testing, for both i386 and am64 architectures! (Update 2020-07-07: Plasma 5.19.3 is included!) (Update 2020-07-15: Frameworks 5.72 and KDE Apps 20.04.3 are included!) With Qt 5.14 arriving in Debian/testing, and some tweaks here and there, we finally have all the packages (2 additional deps, 82 frameworks, 47 Plasma, 216 Apps, 3 other apps) built on both Debian unstable and Debian testing, for both amd64 and i386 architectures. Again, big thanks to OBS! Repositories:
For Unstable:
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/other-deps/Debian_Unstable/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/frameworks/Debian_Unstable/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/plasma519/Debian_Unstable/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/apps/Debian_Unstable/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/other/Debian_Unstable/ ./
For Testing:
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/other-deps/Debian_Testing/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/frameworks/Debian_Testing/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/plasma519/Debian_Testing/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/apps/Debian_Testing/ ./
deb https://download.opensuse.org/repositories/home:/npreining:/debian-kde:/other/Debian_Testing/ ./
As usual, don t forget that you need to import my OBS gpg key: obs-npreining.asc, best to download it and put the file into /etc/apt/trusted.gpg.d/obs-npreining.asc. Enjoy.

Dirk Eddelbuettel: #28: Welcome RSPM and test-drive with Bionic and Focal

Welcome to the 28th post in the relatively random R recommendations series, or R4 for short. Our last post was a double entry in this R4 series and the newer T4 video series and covered a topic touched upon in this R4 series multiple times: easy binary install, especially on Ubuntu. That post already previewed the newest kid on the block: RStudio s RSPM, now formally announced. In the post we were only able to show Ubuntu 18.04 aka bionic. With the formal release of RSPM support has been added for Ubuntu 20.04 aka focal and we are happy to announce that of course we added a corresponding Rocker r-rspm container. So you can now take full advantage of RSPM either via docker pull rocker/r-rspm:18.04 or via docker pull rocker/r-rspm:20.04 covering the two most recent LTS releases. RSPM is a nice accomplishment. Covering multiple Linux distributions is an excellent achievement. Allowing users to reason in terms of the CRAN packages (i.e. installing xml2, not r-cran-xml2) eases use. Doing it from via the standard R command install.packages() (or wrapper around it like our install.r from littler package) is very good too and an excellent technical achievement. There is, as best as I can tell, only one shortcoming, along with one small bit of false advertising. The shortcoming is technical. By bringing the package installation into the user application domain, it is separated from the system and lacks integration with system libraries. What do I mean here? If you were to add R to a plain Ubuntu container, say 18.04 or 20.04, then added the few lines to support RSPM and install xml2 it would install. And fail. Why? Because the system library libxml2 does not get installed with the RSPM package whereas the .deb from the distribution or PPAs does. So to help with some popular packages I added libxml2, libunits and a few more for geospatial work to the rocker/r-rspm containers. Being already present ensures packages xml2 and units can run immediately. Please file issue tickets at the Rocker repo if you come across other missing libraries we could preload. (A related minor nag is incomplete coverage. At least one of my CRAN packages does not (yet?) come as a RSPM binary. Then again, CRAN has 16k packages, and the RSPM coverage is much wider than the PPA one. But completeness would be neat. The final nag is lack of Debian support which seems, well, odd.) So what about the small bit of false advertising? Well it is claimed that RSPM makes installation so much faster on Linux . True, faster than the slowest possible installation from source. Also easier. But we had numerous posts on this blog showing other speed gains: Using ccache. And, of course, using binaries. And as the initial video mentioned above showed, installing from the PPAs is also faster than via RSPM. That is easy to replicate. Just set up the rocker/r-ubuntu:20.04 (or 18.04) container alongside the rocker/r-rspm:20.04 (or also 18.04) container. And then time install.r rstan (or install.r tinyverse) in the RSPM one against apt -y update; apt install -y r-cran-rstan (or ... r-cran-tinyverse). In every case I tried, the installation using binaries from the PPA was still faster by a few seconds. Not that it matters greatly: both are very, very quick compared to source installation (as e.g. shown here in 2017 (!!)) but the standard Ubuntu .deb installation is simply faster than using RSPM. (Likely due to better CDN usage so this may change over time. Neither method appears to do downloads in parallel so there is scope for both for doing better.) So in sum: Welcome to RSPM, and nice new tool and feel free to drive it using rocker/r-rspm:18.04 or rocker/r-rspm:20.04. If you like this or other open-source work I do, you can now sponsor me at GitHub. For the first year, GitHub will match your contributions.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

Reproducible Builds (diffoscope): diffoscope 150 released

The diffoscope maintainers are pleased to announce the release of diffoscope version 150. This version includes the following changes:
[ Chris Lamb ]
* Don't crash when listing entries in archives if they don't have a listed
  size (such as hardlinks in .ISO files).
  (Closes: reproducible-builds/diffoscope#188)
* Dump PE32+ executables (including EFI applications) using objdump.
  (Closes: reproducible-builds/diffoscope#181)
* Tidy detection of JSON files due to missing call to File.recognizes that
  checks against the output of file(1) which was also causing us to attempt
  to parse almost every file using json.loads. (Whoops.)
* Drop accidentally-duplicated copy of the new --diff-mask tests.
* Logging improvements:
  - Split out formatting of class names into a common method.
  - Clarify that we are generating presenter formats in the opening logs.
[ Jean-Romain Garnier ]
* Remove objdjump(1) offsets before instructions to reduce diff noise.
  (Closes: reproducible-builds/diffoscope!57)
You find out more by visiting the project homepage.

2 July 2020

Mike Gabriel: My Work on Debian LTS (June 2020)

In June 2020, I have worked on the Debian LTS project for 8 hours (of 8 hours planned). LTS Work Other security related work for Debian References

Russell Coker: Desklab Portable USB-C Monitor

I just got a 15.6 4K resolution Desklab portable touchscreen monitor [1]. It takes power via USB-C and video input via USB-C or mini HDMI, has touch screen input, and has speakers built in for USB or HDMI sound. PC Use I bought a mini-DisplayPort to HDMI adapter and for my first test ran it from my laptop, it was seen as a 1920*1080 DisplayPort monitor. The adaptor is specified as supporting 4K so I don t know why I didn t get 4K to work, my laptop has done 4K with other monitors. The next thing I plan to get is a VGA to HDMI converter so I can use this on servers, it can be a real pain getting a monitor and power cable to a rack mounted server and this portable monitor can be powered by one of the USB ports in the server. A quick search indicates that such devices start at about $12US. The Desklab monitor has no markings to indicate what resolution it supports, no part number, and no serial number. The only documentation I could find about how to recognise the difference between the FullHD and 4K versions is that the FullHD version supposedly draws 2A and the 4K version draws 4A. I connected my USB Ammeter and it reported that between 0.6 and 1.0A were drawn. If they meant to say 2W and 4W instead of 2A and 4A (I ve seen worse errors in manuals) then the current drawn would indicate the 4K version. Otherwise the stated current requirements don t come close to matching what I ve measured. Power The promise of USB-C was power from anywhere to anywhere. I think that such power can theoretically be done with USB 3 and maybe USB 2, but asymmetric cables make it more challenging. I can power my Desklab monitor from a USB battery, from my Thinkpad s USB port (even when the Thinkpad isn t on mains power), and from my phone (although the phone battery runs down fast as expected). When I have a mains powered USB charger (for a laptop and rated at 60W) connected to one USB-C port and my phone on the other the phone can be charged while giving a video signal to the display. This is how it s supposed to work, but in my experience it s rare to have new technology live up to it s potential at the start! One thing to note is that it doesn t have a battery. I had imagined that it would have a battery (in spite of there being nothing on their web site to imply this) because I just couldn t think of a touch screen device not having a battery. It would be nice if there was a version of this device with a big battery built in that could avoid needing separate cables for power and signal. Phone Use The first thing to note is that the Desklab monitor won t work with all phones, whether a phone will take the option of an external display depends on it s configuration and some phones may support an external display but not touchscreen. The Huawei Mate devices are specifically listed in the printed documentation as being supported for touchscreen as well as display. Surprisingly the Desklab web site has no mention of this unless you download the PDF of the manual, they really should have a list of confirmed supported devices and a forum for users to report on how it works. My phone is a Huawei Mate 10 Pro so I guess I got lucky here. My phone has a desktop mode that can be enabled when I connect it to a USB-C device (not sure what criteria it uses to determine if the device is suitable). The desktop mode has something like a regular desktop layout and you can move windows around etc. There is also the option of having a copy of the phone s screen, but it displays the image of the phone screen vertically in the middle of the landscape layout monitor which is ridiculous. When desktop mode is enabled it s independent of the phone interface so I had to find the icons for the programs I wanted to run in an unsorted list with no search usable (the search interface of the app list brings up the keyboard which obscures the list of matching apps). The keyboard takes up more than half the screen and there doesn t seem to be a way to make it smaller. I d like to try a portrait layout which would make the keyboard take something like 25% of the screen but that s not supported. It s quite easy to type on a keyboard that s slightly larger than a regular PC keyboard (a 15 display with no numeric keypad or cursor control keys). The hackers keyboard app might work well with this as it has cursor control keys. The GUI has an option for full screen mode for an app which is really annoying to get out of (you have to use a drop down from the top of the screen), full screen doesn t make sense for a display this large. Overall the GUI is a bit clunky, imagine Windows 3.1 with a start button and task bar. One interesting thing to note is that the desktop and phone GUIs can be run separately, so you can type on the Desklab (or any similar device) and look things up on the phone. Multiple monitors never really interested me for desktop PCs because switching between windows is fast and easy and it s easy to resize windows to fit several on the desktop. Resizing windows on the Huawei GUI doesn t seem easy (although I might be missing some things) and the keyboard takes up enough of the screen that having multiple windows open while typing isn t viable. I wrote the first draft of this post on my phone using the Desklab display. It s not nearly as easy as writing on a laptop but much easier than writing on the phone screen. Currently Desklab is offering 2 models for sale, 4K resolution for $399US and FullHD for $299US. I got the 4K version which is very expensive at the moment when converted to Australian dollars. There are significantly cheaper USB-C monitors available (such as this ASUS one from Kogan for $369AU), but I don t think they have touch screens and therefore can t be used with a phone unless you enable the phone screen as touch pad mode and have a mouse cursor on screen. I don t know if all Android devices support that, it could be that a large part of the desktop experience I get is specific to Huawei devices. One annoying feature is that if I use the phone power button to turn the screen off it shuts down the connection to the Desklab display, but the phone screen will turn off it I leave it alone for the screen timeout (which I have set to 10 minutes). Caveats When I ordered this I wanted the biggest screen possible. But now that I have it the fact that it doesn t fit in the pocket of my Scott e Vest jacket [2] will limit what I can do with it. Maybe I ll be buying a 13 monitor in the near future, I expect that Desklab will do well and start selling them in a wide range of sizes. A 15.6 portable device is inconvenient even if it is in the laptop format, a thin portable screen is inconvenient in many ways. Netflix doesn t display video on the Desklab screen, I suspect that Netflix is doing this deliberately as some misguided attempt at stopping piracy. It is really good for watching video as it has the speakers in good locations for stereo sound, it s a pity that Netflix is difficult. The functionality on phones from companies other than Huawei is unknown. It is likely to work on most Android phones, but if a particular phone is important to you then you want to Google for how it worked for others.

Evgeni Golov: Automatically renaming the default git branch to "devel"

It seems GitHub is planning to rename the default brach for newly created repositories from "master" to "main". It's incredible how much positive PR you can get with a one line configuration change, while still working together with the ICE. However, this post is not about bashing GitHub. Changing the default branch for newly created repositories is good. And you also should do that for the ones you create with git init locally. But what about all the repositories out there? GitHub surely won't force-rename those branches, but we can! Ian will do this as he touches the individual repositories, but I tend to forget things unless I do them immediately Oh, so this is another "automate everything with an API" post? Yes, yes it is! And yes, I am going to use GitHub here, but something similar should be implementable on any git hosting platform that has an API. Of course, if you have SSH access to the repositories, you can also just edit HEAD in an for loop in bash, but that would be boring ;-) I'm going with devel btw, as I'm already used to develop in the Foreman project and devel in Ansible. acquire credentials My GitHub account is 2FA enabled, so I can't just use my username and password in a basic HTTP API client. So the first step is to acquire a personal access token, that can be used instead. Of course I could also have implemented OAuth2 in my lousy script, but ain't nobody have time for that. The token will require the "repo" permission to be able to change repositories. And we'll need some boilerplate code (I'm using Python3 and requests, but anything else will work too):
#!/usr/bin/env python3
import requests
BASE='https://api.github.com'
USER='evgeni'
TOKEN='abcdef'
headers =  'User-Agent': '@ '.format(USER) 
auth = (USER, TOKEN)
session = requests.Session()
session.auth = auth
session.headers.update(headers)
session.verify = True
This will store our username, token, and create a requests.Session so that we don't have to pass the same data all the time. get a list of repositories to change I want to change all my own repos that are not archived, not forks, and actually have the default branch set to master, YMMV. As we're authenticated, we can just list the repositories of the currently authenticated user, and limit them to "owner" only. GitHub uses pagination for their API, so we'll have to loop until we get to the end of the repository list.
repos_to_change = []
url = ' /user/repos?type=owner'.format(BASE)
while url:
    r = session.get(url)
    if r.ok:
        repos = r.json()
        for repo in repos:
            if not repo['archived'] and not repo['fork'] and repo['default_branch'] == 'master':
                repos_to_change.append(repo['name'])
        if 'next' in r.links:
            url = r.links['next']['url']
        else:
            url = None
    else:
        url = None
create a new devel branch and mark it as default Now that we know which repos to change, we need to fetch the SHA of the current master, create a new devel branch pointing at the same commit and then set that new branch as the default branch.
for repo in repos_to_change:
    master_data = session.get(' /repos/evgeni/ /git/ref/heads/master'.format(BASE, repo)).json()
    data =  'ref': 'refs/heads/devel', 'sha': master_data['object']['sha'] 
    session.post(' /repos/ / /git/refs'.format(BASE, USER, repo), json=data)
    default_branch_data =  'default_branch': 'devel' 
    session.patch(' /repos/ / '.format(BASE, USER, repo), json=default_branch_data)
    session.delete(' /repos/ / /git/refs/heads/ '.format(BASE, USER, repo, 'master'))
I've also opted in to actually delete the old master, as I think that's the safest way to let the users know that it's gone. Letting it rot in the repository would mean people can still pull and won't notice that there are no changes anymore as the default branch moved to devel. So announcement I've updated all my (those in the evgeni namespace) non-archived repositories to have devel instead of master as the default branch. Have fun updating! code
#!/usr/bin/env python3
import requests
BASE='https://api.github.com'
USER='evgeni'
TOKEN='abcd'
headers =  'User-Agent': '@ '.format(USER) 
auth = (USER, TOKEN)
session = requests.Session()
session.auth = auth
session.headers.update(headers)
session.verify = True
repos_to_change = []
url = ' /user/repos?type=owner'.format(BASE)
while url:
    r = session.get(url)
    if r.ok:
        repos = r.json()
        for repo in repos:
            if not repo['archived'] and not repo['fork'] and repo['default_branch'] == 'master':
                repos_to_change.append(repo['name'])
        if 'next' in r.links:
            url = r.links['next']['url']
        else:
            url = None
    else:
        url = None
for repo in repos_to_change:
    master_data = session.get(' /repos/evgeni/ /git/ref/heads/master'.format(BASE, repo)).json()
    data =  'ref': 'refs/heads/devel', 'sha': master_data['object']['sha'] 
    session.post(' /repos/ / /git/refs'.format(BASE, USER, repo), json=data)
    default_branch_data =  'default_branch': 'devel' 
    session.patch(' /repos/ / '.format(BASE, USER, repo), json=default_branch_data)
    session.delete(' /repos/ / /git/refs/heads/ '.format(BASE, USER, repo, 'master'))

Russell Coker: Isolating PHP Web Sites

If you have multiple PHP web sites on a server in a default configuration they will all be able to read each other s files in a default configuration. If you have multiple PHP web sites that have stored data or passwords for databases in configuration files then there are significant problems if they aren t all trusted. Even if the sites are all trusted (IE the same person configures them all) if there is a security problem in one site it s ideal to prevent that being used to immediately attack all sites. mpm_itk The first thing I tried was mpm_itk [1]. This is a version of the traditional prefork module for Apache that has one process for each HTTP connection. When it s installed you just put the directive AssignUserID USER GROUP in your VirtualHost section and that virtual host runs as the user:group in question. It will work with any Apache module that works with mpm_prefork. In my experiment with mpm_itk I first tried running with a different UID for each site, but that conflicted with the pagespeed module [2]. The pagespeed module optimises HTML and CSS files to improve performance and it has a directory tree where it stores cached versions of some of the files. It doesn t like working with copies of itself under different UIDs writing to that tree. This isn t a real problem, setting up the different PHP files with database passwords to be read by the desired group is easy enough. So I just ran each site with a different GID but used the same UID for all of them. The first problem with mpm_itk is that the mpm_prefork code that it s based on is the slowest mpm that is available and which is also incompatible with HTTP/2. A minor issue of mpm_itk is that it makes Apache take ages to stop or restart, I don t know why and can t be certain it s not a configuration error on my part. As an aside here is a site for testing your server s support for HTTP/2 [3]. To enable HTTP/2 you have to be running mpm_event and enable the http2 module. Then for every virtual host that is to support it (generally all https virtual hosts) put the line Protocols h2 h2c http/1.1 in the virtual host configuration. A good feature of mpm_itk is that it has everything for the site running under the same UID, all Apache modules and Apache itself. So there s no issue of one thing getting access to a file and another not getting access. After a trial I decided not to keep using mpm_itk because I want HTTP/2 support. php-fpm Pools The Apache PHP module depends on mpm_prefork so it also has the issues of not working with HTTP/2 and of causing the web server to be slow. The solution is php-fpm, a separate server for running PHP code that uses the fastcgi protocol to talk to Apache. Here s a link to the upstream documentation for php-fpm [4]. In Debian this is in the php7.3-fpm package. In Debian the directory /etc/php/7.3/fpm/pool.d has the configuration for pools . Below is an example of a configuration file for a pool:
# cat /etc/php/7.3/fpm/pool.d/example.com.conf
[example.com]
user = example.com
group = example.com
listen = /run/php/php7.3-example.com.sock
listen.owner = www-data
listen.group = www-data
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
Here is the upstream documentation for fpm configuration [5]. Then for the Apache configuration for the site in question you could have something like the following:
ProxyPassMatch "^/(.*\.php(/.*)?)$" "unix:/run/php/php7.3-example.com.sock fcgi://localhost/usr/share/wordpress/"
The fcgi://localhost part is just part of the way of specifying a Unix domain socket. From the Apache Wiki it appears that the method for configuring the TCP connections is more obvious [6]. I chose Unix domain sockets because it allows putting the domain name in the socket address. Matching domains for the web server to port numbers is something that s likely to be error prone while matching based on domain names is easier to check and also easier to put in Apache configuration macros. There was some additional hassle with getting Apache to read the files created by PHP processes (the options include running PHP scripts with the www-data group, having SETGID directories for storing files, and having world-readable files). But this got things basically working. Nginx My Google searches for running multiple PHP sites under different UIDs didn t turn up any good hits. It was only after I found the DigitalOcean page on doing this with Nginx [7] that I knew what to search for to find the way of doing it in Apache.

1 July 2020

Joachim Breitner: Template Haskell recompilation

I was wondering: What happens if I have a Haskell module with Template Haskell that embeds some information from the environment (time, environment variables). Will such a module be reliable recompiled? And what if it gets recompiled, but the source code produced by Template Haskell is actually unchanged (e.g., because the environment variable has not changed), will all depending modules be recompiled (which would be bad)? Here is a quick experiment, using GHC-8.8:
/tmp/th-recom-test $ cat Foo.hs
 -# LANGUAGE TemplateHaskell #- 
 -# OPTIONS_GHC -fforce-recomp #- 
module Foo where
import Language.Haskell.TH
import Language.Haskell.TH.Syntax
import System.Process
theMinute :: String
theMinute = $(runIO (readProcess "date" ["+%M"] "") >>= stringE)
[jojo@kirk:2] Mi, der 01.07.2020 um 17:18 Uhr  
/tmp/th-recom-test $ cat Main.hs
import Foo
main = putStrLn theMinute
Note that I had to set -# OPTIONS_GHC -fforce-recomp #- by default, GHC will not recompile a module, even if it uses Template Haskell and runIO. If you are reading from a file you can use addDependentFile to tell the compiler about that depenency, but that does not help with reading from the environment. So here is the test, and we get the desired behaviour: The Foo module is recompiled every time, but unless the minute has changed (see my prompt), Main is not recomipled:
/tmp/th-recom-test $ ghc --make -O2 Main.hs -o test
[1 of 2] Compiling Foo              ( Foo.hs, Foo.o )
[2 of 2] Compiling Main             ( Main.hs, Main.o )
Linking test ...
[jojo@kirk:2] Mi, der 01.07.2020 um 17:20 Uhr  
/tmp/th-recom-test $ ghc --make -O2 Main.hs -o test
[1 of 2] Compiling Foo              ( Foo.hs, Foo.o )
Linking test ...
[jojo@kirk:2] Mi, der 01.07.2020 um 17:20 Uhr  
/tmp/th-recom-test $ ghc --make -O2 Main.hs -o test
[1 of 2] Compiling Foo              ( Foo.hs, Foo.o )
[2 of 2] Compiling Main             ( Main.hs, Main.o ) [Foo changed]
Linking test ...
So all well! Update: It seems that while this works with ghc --make, the -fforce-recomp does not cause cabal build to rebuild the module. That s unfortunate.

Sylvain Beucler: Debian LTS and ELTS - June 2020

Debian LTS Logo Here is my transparent report for my work on the Debian Long Term Support (LTS) and Debian Extended Long Term Support (ELTS), which extend the security support for past Debian releases, as a paid contributor. In June, the monthly sponsored hours were split evenly among contributors depending on their max availability - I was assigned 30h for LTS (out of 30 max; all done) and 5.25h for ELTS (out of 20 max; all done). While LTS is part of the Debian project, fellow contributors sometimes surprise me: suggestion to vote for sponsors-funded projects with concorcet was only met with overhead concerns, and there were requests for executive / business owner decisions (we're currently heading towards consultative vote); I heard concerns about discussing non-technical issues publicly (IRC team meetings are public though); the private mail infrastructure was moved from self-hosting straight to Google; when some got an issue with Debian Social for our first video conference, there were immediate suggestions to move to Zoom...
Well, we do need some people to make those LTS firmware updates in non-free :) Also this was the last month before shifting suites: goodbye to Jessie LTS and Wheezy ELTS, welcome Stretch LTS and Jessie ELTS. ELTS - Wheezy LTS - Jessie Documentation/Scripts

Utkarsh Gupta: FOSS Activites in June 2020

Here s my (ninth) monthly update about the activities I ve done in the F/L/OSS world.

Debian
This was my 16th month of contributing to Debian. I became a DM in late March last year and a DD last Christmas! \o/ This month was a little intense. I did a lot of different kinds of things in Debian this month. Whilst most of my time went on doing security stuff, I also sponsored a bunch of packages. Here are the following things I did this month:

Uploads and bug fixes:

Other $things:
  • Hosted Ruby team meeting. Logs here.
  • Mentoring for newcomers.
  • FTP Trainee reviewing.
  • Moderation of -project mailing list.
  • Sponsored ruby-ast for Abraham, libexif for Hugh, djangorestframework-gis and karlseguin-ccache for Nilesh, and twig-extensions, twig-i18n-extension, and mariadb-mysql-kbs for William.

GSoC Phase 1, Part 2! Last month, I got selected as a Google Summer of Code student for Debian again! \o/
I am working on the Upstream-Downstream Cooperation in Ruby project. The first half of the first month is blogged here, titled, GSoC Phase 1.
Also, I log daily updates at gsocwithutkarsh2102.tk. Whilst the daily updates are available at the above site^, I ll breakdown the important parts of the later half of the first month here:
  • Documented the first cop, GemspecGit via PR #2.
  • Made an initial release, v0.1.0!
  • Spread the word/usage about this tool/library via adding them in the official RuboCop docs.
  • We had our third weekly meeting where we discussed the next steps and the things that are supposed to be done for the next set of cops.
  • Wrote more tests so as to cover different aspects of the GemspecGit cop.
  • Opened PR #4 for the next Cop, RequireRelativeToLib.
  • Introduced rubocop-packaging to the outer world and requested other upstream projects to use it! It is being used by 6 other projects already
  • Had our fourth weekly meeting where we pair-programmed (and I sucked :P) and figured out a way to make the second cop work.
  • Found a bug, reported at issue #5 and raised PR #6 to fix it.
  • And finally, people loved the library/tool (and it s outcome):



    (for those who don t know, @bbatsov is the author of RuboCop, @lienvdsteen is an amazing fullstack engineer at GitLab, and @pboling is the author of some awesome Ruby tools and libraries!)

Debian LTS
Debian Long Term Support (LTS) is a project to extend the lifetime of all Debian stable releases to (at least) 5 years. Debian LTS is not handled by the Debian security team, but by a separate group of volunteers and companies interested in making it a success. This was my ninth month as a Debian LTS paid contributor. I was assigned 30.00 hours and worked on the following things:

CVE Fixes and Announcements:

Other LTS Work:
  • Triaged sympa, apache2, qemu, and coturn.
  • Add fix for CVE-2020-0198/libexif.
  • Requested CVE for bug#60251 against apache2 and prodded further.
  • Raised issue #947 against sympa reporting an incomplete patch for CVE-2020-10936. More discussions internally.
  • Created the LTS Survey on the self-hosted LimeSurvey instance.
  • Attended the third LTS meeting. Logs here.
  • General discussion on LTS private and public mailing list.

Other(s)
Sometimes it gets hard to categorize work/things into a particular category.
That s why I am writing all of those things inside this category.
This includes two sub-categories and they are as follows.

Personal: This month I did the following things:
  • Wrote and published v0.1.0 of rubocop-packaging on RubyGems!
    It s open-sourced and the repository is here.
    Bug reports and pull requests are welcomed!
  • Integrated a tiny (yet a powerful) hack to align images in markdown for my blog.
    Commit here.
  • Released v0.4.0 of batalert on RubyGems!

Open Source: Again, this contains all the things that I couldn t categorize earlier.
Opened several issues and PRs:
Thank you for sticking along for so long :) Until next time.
:wq for today.

Paul Wise: FLOSS Activities June 2020

Focus This month I didn't have any particular focus. I just worked on issues in my info bubble.

Changes

Issues

Review

Administration
  • Debian BTS: usertags QA
  • Debian IRC channels: fixed a channel mode lock
  • Debian wiki: unblock IP addresses, approve accounts, ping folks with bouncing email

Communication
  • Respond to queries from Debian users and developers on the mailing lists and IRC

Sponsors The ifenslave and apt-listchanges work was sponsored by my employer. All other work was done on a volunteer basis.

30 June 2020

Chris Lamb: Free software activities in June 2020

Here is my monthly update covering what I have been doing in the free software world during June 2020 (previous month): For Lintian, the static analysis tool for Debian packages:

Reproducible Builds One of the original promises of open source software is that distributed peer review and transparency of process results in enhanced end-user security. However, whilst anyone may inspect the source code of free and open source software for malicious flaws, almost all software today is distributed as pre-compiled binaries. This allows nefarious third-parties to compromise systems by injecting malicious code into ostensibly secure software during the various compilation and distribution processes. The motivation behind the Reproducible Builds effort is to ensure no flaws have been introduced during this compilation process by promising identical results are always generated from a given source, thus allowing multiple third-parties to come to a consensus on whether a build was compromised. The project is proud to be a member project of the Software Freedom Conservancy. Conservancy acts as a corporate umbrella allowing projects to operate as non-profit initiatives without managing their own corporate structure. If you like the work of the Conservancy or the Reproducible Builds project, please consider becoming an official supporter. This month, I:

Elsewhere in our tooling, I made the following changes to diffoscope including preparing and uploading versions 147, 148 and 149 to Debian: trydiffoscope is the web-based version of diffoscope. This month, I specified a location for the celerybeat scheduler to ensure that the clean/tidy tasks are actually called which had caused an accidental resource exhaustion. (#12)

Debian I filed three bugs against: Debian LTS This month I have worked 18 hours on Debian Long Term Support (LTS) and 5 hours on its sister Extended LTS project. You can find out more about the project via the following video:
Uploads

Emmanuel Kasper: Learning openshift: a good moment to revisit awk too

I can t believe I spent all these years using only grep. Most of us know how to use awk to print the nth column of a file:
$ awk ' print $1 ' /etc/hosts
will print all IP addresses from /etc/hosts But you can also do filtering before printing the chosen column:
$ awk '$5 >= 2  print $2 ' /path/to/file
will print the second column of all lines, where the 5th column is greater than 2. That would have been hard with grep. Now I can use that to find out all deployments on my openshift cluster, where the number of current replicas is greater than 2.
$ oc get deployments --all-namespaces   awk '$5 >= 2  print $2 '
NAME
oauth-openshift
console
downloads
router-default
etcd-quorum-guard
prometheus-adapter
thanos-querier
packageserver
I know that openshift/kubernetes both have a powerful query selector syntax, but for the moment awk will do.

Russ Allbery: Review: The Fifth Risk

Review: The Fifth Risk, by Michael Lewis
Publisher: W.W. Norton
Copyright: 2018
Printing: 2019
ISBN: 0-393-35745-7
Format: Kindle
Pages: 254
The Fifth Risk starts with the presidential transition. Max Stier, the first person profiled by Lewis in this book, is the founder of the Partnership for Public Service. That foundation helped push through laws to provide more resources and structure for the transition of the United States executive branch from one president to the next. The goal was to fight wasted effort, unnecessary churn, and pointless disruption in the face of each administration's skepticism about everyone who worked for the previous administration.
"It's Groundhog Day," said Max. "The new people come in and think that the previous administration and the civil service are lazy or stupid. Then they actually get to know the place they are managing. And when they leave, they say, 'This was a really hard job, and those are the best people I've ever worked with.' This happens over and over and over."
By 2016, Stier saw vast improvements, despite his frustration with other actions of the Obama administration. He believed their transition briefings were one of the best courses ever produced on how the federal government works. Then that transition process ran into Donald Trump. Or, to be more accurate, that transition did not run into Donald Trump, because neither he nor anyone who worked for him were there. We'll never know how good the transition information was because no one ever listened to or read it. Meetings were never scheduled. No one showed up. This book is not truly about the presidential transition, though, despite its presence as a continuing theme. The Fifth Risk is, at its heart, an examination of government work, the people who do it, why it matters, and why you should care about it. It's a study of the surprising and misunderstood responsibilities of the departments of the United States federal government. And it's a series of profiles of the people who choose this work as a career, not in the upper offices of political appointees, but deep in the civil service, attempting to keep that system running. I will warn now that I am far too happy that this book exists to be entirely objective about it. The United States desperately needs basic education about the government at all levels, but particularly the federal civil service. The public impression of government employees is skewed heavily towards the small number of public-facing positions and towards paperwork frustrations, over which the agency usually has no control because they have been sabotaged by Congress (mostly by Republicans, although the Democrats get involved occasionally). Mental images of who works for the government are weirdly selective. The Coast Guard could say "I'm from the government and I'm here to help" every day, to the immense gratitude of the people they rescue, but Reagan was still able to use that as a cheap applause line in his attack on government programs. Other countries have more functional and realistic social attitudes towards their government workers. The United States is trapped in a politically-fueled cycle of contempt and ignorance. It has to stop. And one way to help stop it is someone with Michael Lewis's story-telling skills writing a different narrative. The Fifth Risk is divided into a prologue about presidential transitions, three main parts, and an afterword (added in current editions) about a remarkable government worker whom you likely otherwise would never hear about. Each of the main parts talks about a different federal department: the Department of Energy, the Department of Agriculture, and the Department of Commerce. In keeping with the theme of the book, the people Lewis profiles do not do what you might expect from the names of those departments. Lewis's title comes from his discussion with John MacWilliams, a former Goldman Sachs banker who quit the industry in search of more personally meaningful work and became the chief risk officer for the Department of Energy. Lewis asks him for the top five risks he sees, and if you know that the DOE is responsible for safeguarding nuclear weapons, you will be able to guess several of them: nuclear weapons accidents, North Korea, and Iran. If you work in computer security, you may share his worry about the safety of the electrical grid. But his fifth risk was project management. Can the government follow through on long-term hazardous waste safety and cleanup projects, despite constant political turnover? Can it attract new scientists to the work of nuclear non-proliferation before everyone with the needed skills retires? Can it continue to lay the groundwork with basic science for innovation that we'll need in twenty or fifty years? This is what the Department of Energy is trying to do. Lewis's profiles of other departments are similarly illuminating. The Department of Agriculture is responsible for food stamps, the most effective anti-poverty program in the United States with the possible exception of Social Security. The section on the Department of Commerce is about weather forecasting, specifically about NOAA (the National Oceanic and Atmospheric Administration). If you didn't know that all of the raw data and many of the forecasts you get from weather apps and web sites are the work of government employees, and that AccuWeather has lobbied Congress persistently for years to prohibit the NOAA from making their weather forecasts public so that AccuWeather can charge you more for data your taxes already paid for, you should read this book. The story of American contempt for government work is partly about ignorance, but it's also partly about corporations who claim all of the credit while selling taxpayer-funded resources back to you at absurd markups. The afterword I'll leave for you to read for yourself, but it's the story of Art Allen, a government employee you likely have never heard of but whose work for the Coast Guard has saved more lives than we are able to measure. I found it deeply moving. If you, like I, are a regular reader of long-form journalism and watch for new Michael Lewis essays in particular, you've probably already read long sections of this book. By the time I sat down with it, I think I'd read about a third in other forms on-line. But the profiles that I had already read were so good that I was happy to read them again, and the additional stories and elaboration around previously published material was more than worth the cost and time investment in the full book.
It was never obvious to me that anyone would want to read what had interested me about the United States government. Doug Stumpf, my magazine editor for the past decade, persuaded me that, at this strange moment in American history, others might share my enthusiasm.
I'll join Michael Lewis in thanking Doug Stumpf. The Fifth Risk is not a proposal for how to fix government, or politics, or polarization. It's not even truly a book about the Trump presidency or about the transition. Lewis's goal is more basic: The United States government is full of hard-working people who are doing good and important work. They have effectively no public relations department. Achievements that would result in internal and external press releases in corporations, not to mention bonuses and promotions, go unnoticed and uncelebrated. If you are a United States citizen, this is your government and it does important work that you should care about. It deserves the respect of understanding and thoughtful engagement, both from the citizenry and from the politicians we elect. Rating: 10 out of 10

Craig Sanders: Fuck Grey Text

fuck grey text on white backgrounds
fuck grey text on black backgrounds
fuck thin, spindly fonts
fuck 10px text
fuck any size of anything in px
fuck font-weight 300
fuck unreadable web pages
fuck themes that implement this unreadable idiocy
fuck sites that don t work without javascript
fuck reactjs and everything like it thank fuck for Stylus. and uBlock Origin. and uMatrix. Fuck Grey Text is a post from: Errata

Norbert Preining: TeX Live Debian update 20200629

More than a month has passed since the last update of TeX Live packages in Debian, so here is a new checkout!
All arch all packages have been updated to the tlnet state as of 2020-06-29, see the detailed update list below. Enjoy. New packages akshar, beamertheme-pure-minimalistic, biblatex-unified, biblatex-vancouver, bookshelf, commutative-diagrams, conditext, courierten, ektype-tanka, hvarabic, kpfonts-otf, marathi, menucard, namedef, pgf-pie, pwebmac, qrbill, semantex, shtthesis, tikz-lake-fig, tile-graphic, utf8add. Updated packages abnt, achemso, algolrevived, amiri, amscls, animate, antanilipsum, apa7, babel, bangtex, baskervillef, beamerappendixnote, beamerswitch, beamertheme-focus, bengali, bib2gls, biblatex-apa, biblatex-philosophy, biblatex-phys, biblatex-software, biblatex-swiss-legal, bibleref, bookshelf, bxjscls, caption, ccool, cellprops, changes, chemfig, circuitikz, cloze, cnltx, cochineal, commutative-diagrams, comprehensive, context, context-vim, cquthesis, crop, crossword, ctex, cweb, denisbdoc, dijkstra, doclicense, domitian, dps, draftwatermark, dvipdfmx, ebong, ellipsis, emoji, endofproofwd, eqexam, erewhon, erewhon-math, erw-l3, etbb, euflag, examplep, fancyvrb, fbb, fbox, fei, fira, fontools, fontsetup, fontsize, forest-quickstart, gbt7714, genealogytree, haranoaji, haranoaji-extra, hitszthesis, hvarabic, hyperxmp, icon-appr, kpfonts, kpfonts-otf, l3backend, l3build, l3experimental, l3kernel, latex-amsmath-dev, latexbangla, latex-base-dev, latexdemo, latexdiff, latex-graphics-dev, latexindent, latex-make, latexmp, latex-mr, latex-tools-dev, libertinus-fonts, libertinust1math, lion-msc, listings, logix, lshort-czech, lshort-german, lshort-polish, lshort-portuguese, lshort-russian, lshort-slovenian, lshort-thai, lshort-ukr, lshort-vietnamese, luamesh, lua-uca, luavlna, lwarp, marathi, memoir, mnras, moderntimeline, na-position, newcomputermodern, newpx, nicematrix, nodetree, ocgx2, oldstandard, optex, parskip, pdfcrop, pdfpc, pdftexcmds, pdfxup, pgf, pgfornament, pgf-pie, pgf-umlcd, pgf-umlsd, pict2e, plautopatch, poemscol, pst-circ, pst-eucl, pst-func, pstricks, pwebmac, pxjahyper, quran, rec-thy, reledmac, rest-api, sanskrit, sanskrit-t1, scholax, semantex, showexpl, shtthesis, suftesi, svg, tcolorbox, tex4ht, texinfo, thesis-ekf, thuthesis, tkz-doc, tlshell, toptesi, tuda-ci, tudscr, twemoji-colr, univie-ling, updmap-map, vancouver, velthuis, witharrows, wtref, xecjk, xepersian-hm, xetex-itrans, xfakebold, xindex, xindy, xltabular, yathesis, ydoc, yquant, zref.

29 June 2020

Norbert Preining: Cinnamon 4.6 for Debian

After a few rounds of testing in experimental, I have uploaded Cinnamon 4.6 packages to Debian/unstable. Nothing spectacular new besides the usual stream of fixes. Enjoy the new Cinnamon!

28 June 2020

Russ Allbery: PGP::Sign 1.00

This is the first new release of PGP::Sign in 13 years, so it's long-overdue. I have finally updated it in preparation for creating a new, more modern signing key for the Big Eight Usenet hierarchies and issuing control messages with both the old and new keys, using GnuPG v2 for the new key. The biggest change in this release is that it drops support for all OpenPGP implementations other than GnuPG, and adds support for GnuPG v2. I think some of the other PGP implementations are still around, but I haven't seen them in years and have no way to test against them, so it didn't seem worthwhile to continue to support them. GnuPG v2 support is obviously long-overdue, given that we're getting close to the point where GnuPG v1 will start disappearing from distributions. The default backend is now GnuPG v2, although the module can be configured to use GnuPG v1 instead. This release also adds a new object-oriented API. When I first wrote this module, it was common in the Perl community to have functional APIs configured with global variables. Subsequently we've learned this is a bad idea for a host of reasons, and I finally got around to redoing the API. It's still not perfect (in particular, the return value of the verify method is still a little silly), but it's much nicer. The old API is still supported, implemented as a shim in front of the new API. A few other, more minor changes in this release: It also now uses IPC::Run and File::Temp instead of hand-rolling equivalent functionality, and the module build system is now Module::Build. You can get the latest version from CPAN or from the PGP::Sign distribution page.

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