1. Creating a list of file checksum+pathname/filename
2. Reading files from lost+found and moving them to their original filename by identifying from the list in (1)

• some lame DNS server
• logcheck
• spamassassin

named: connection refused resolving 'somedomain.org/NS/IN': xxx.yyy.zzz.nnn#53
named: connection refused resolving 'somedomain.org/NS/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns1.somedomain.org/AAAA/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns2.somedomain.org/AAAA/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns1.somedomain.org/AAAA/IN': xxx.yyy.zzz.nnn#53
named: connection refused resolving 'ns2.somedomain.org/AAAA/IN': xxx.yyy.zzz.nnn#53

• logcheck reports the failure during its next check
• spamassassin processes the logcheck mail, spots the domain name and does a new set of lookups, which fail and get logged
• logcheck reports the failures during its next check
• ...

logging  
    category lame-servers   null;  ;
 ;

• some lame DNS server
• logcheck
• spamassassin

named: connection refused resolving 'somedomain.org/NS/IN': xxx.yyy.zzz.nnn#53
named: connection refused resolving 'somedomain.org/NS/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns1.somedomain.org/AAAA/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns2.somedomain.org/AAAA/IN': xxx.yyy.zzz.mmm#53
named: connection refused resolving 'ns1.somedomain.org/AAAA/IN': xxx.yyy.zzz.nnn#53
named: connection refused resolving 'ns2.somedomain.org/AAAA/IN': xxx.yyy.zzz.nnn#53

• logcheck reports the failure during its next check
• spamassassin processes the logcheck mail, spots the domain name and does a new set of lookups, which fail and get logged
• logcheck reports the failures during its next check
• ...

logging  
    category lame-servers   null;  ;
 ;

   /* inet_ntop should be used instead of inet_ntoa */                                                       
   int inet_ntoa_lock = 0;

   /* ... */

   PHP_FUNCTION(socket_getpeername)
    
       /* ... */
       if (getpeername(php_sock->bsd_socket, sa, &salen) < 0)  
           PHP_SOCKET_ERROR(php_sock, "unable to retrieve peer name", errno);
           RETURN_FALSE;
        

       switch (sa->sa_family)  
           case AF_INET:
               sin = (struct sockaddr_in *) sa;
               while (inet_ntoa_lock == 1);
               inet_ntoa_lock = 1;

               addr_string = inet_ntoa(sin->sin_addr);
               inet_ntoa_lock = 0;

               zval_dtor(arg2);
               ZVAL_STRING(arg2, addr_string, 1);
               /*... */

   $ grep -wc inet_ntoa **/*.[hc] grep -v :0
   ext/sockets/sockets.c:4
   ext/standard/basic_functions.c:1
   ext/standard/dns.c:2
   main/network.c:1
   sapi/cgi/fastcgi.c:1
   sapi/tux/php_tux.c:1

 $ apt-get install zlib-dev libsdl1.2-dev
   (maybe also libgl, libglu, and python, if not already installed)
 $ wget 'http://teeworlds.com/trac/bam/browser/releases/bam-0.2.0.zip?format=raw' -O bam-0.2.0.zip
 $ wget http://teeworlds.com/files/teeworlds-0.5.1-src.zip
 $ unzip bam-0.2.0.zip
 $ unzip teeworlds-0.5.1-src.zip
 $ cd bam-0.2.0
 $ ./make_unix.sh
 $ cd ../teeworlds-0.5.1-src
 $ ../bam-0.2.0/src/bam release

 $ ./teeworlds

 $ vi ~/.teeworlds/settings.cfg

 $ iptables -A OUTPUT -m state --state NEW -p udp --dport 8300:8310 -j ACCEPT

• Official website
• Forums (yuck)
• For developers: trac, bugs, wiki, mailing list
• Code repository: svn co svn://svn.teeworlds.com/teeworlds/trunk
• Unofficial "Teewiki"
• Lots more useful links

• apache2 restored the 000-default symlink in the sites-enabled dir, which resulted in my website showing the classic It works message for a while.
• Apache's suexec support had moved to its own package, and was very well documented in the NEWS file, but I somehow failed to notice for some time and kept wondering what was going on.
• The Python upgrade again affected my Pyblosxom install. Fortunately it was a minor problem; I just had to add a coding=utf-8 line to the beginning of my config.py to get it working.
• dhcp3-server apparently restored its init scripts and got started again. This time, it got removed.

defrag 0.73pjm1-7 installed: No available version in archive
figlet 2.2.1-3 installed: No available version in archive
ipmasqadm 0.4.2-2 installed: No available version in archive
isapnptools 1.26-5 installed: No available version in archive
ms-sys 2.1.0-1 installed: No available version in archive
queso 0.980922b-3 installed: No available version in archive
update 2.11-4 installed: No available version in archive

For comparison s sake, here is a comparison of the fsck time of the same collection of files and directories, comparing ext3 and the original ext4 block and inode allocator. The file system in question is a 32GB install of Ubuntu Jaunty, with a personal home directory, a rather large Maildir directory, some linux kernel trees, and an e2fsprogs tree. It s basically the emergency environment I set up on my Netbook at FOSDEM. In all cases the file systems were freshly copied from the original root directory using the command rsync -axH / /mnt. It s actually a bit surprising to me that ext3 s pass 2 e2fsck times was that much better than e2fsck time under the old ext4 allocator. My previous experience has shown that the two are normally about the same, with a write throughput of around 9-10 MB/s on for e2fsck s pass 2 for both ext3 file systems and ext4 file systems with the original inode/block allocators. Hence, I would have expected ext3 s pass2 time to have been 12-13 seconds, and not 6. I m not sure how that happened, unless it was the luck of draw in terms of how things ended up getting allocated on disk. So I m not too sure what happened there, but overall things look quite good for ext4 and fsck times!

Comparison of e2fsck times on an 32GB partition

Pass	ext3						ext4 old allocator
	time (s)			I/O			time (s)			I/O
	real	user	system	MB read	MB/s		real	user	system	MB read	MB/s
1	108.40	13.74	11.53	583	5.38		6.69	4.06	0.90	82	12.25
2	5.91	1.74	2.56	133	22.51		13.34	2.30	3.78	133	9.97
3	0.03	0.01	0	1	31.21		0.02	0.01	0	1	63.85
4	0.28	0.27	0	0	0		0.28	0.27	0	0	0
5	3.17	0.92	0.13	2	0.63		2.60	2.31	0.03	1	0.38
Total	118.15	16.75	14.25	718	6.08		23.06	9.03	4.74	216	9.37

Vital Statistics of the 32GB partition

312214	inodes used (14.89%)
263	non-contiguous files (0.1%)
198	non-contiguous directories (0.1%)
	# of inodes with ind/dind/tind blocks: 0/0/0
	Extent depth histogram: 292698/40
4388697	blocks used (52.32%)
0	bad blocks
1	large file
263549	regular files
28022	directories
5	character device files
1	block device file
5	fifos
615	links
20618	symbolic links (19450 fast symbolic links)
5	sockets
312820	files

Related posts (automatically generated):

1. Fast ext4 fsck times This wasn t one of the things we were explicitly engineering...
2. Wanted: Incremental Backup Solutions that Use a Database Dear Lazyweb, I m looking for recommendations for Open Source backup...
3. Ext4 is now the primary filesystem on my laptop Over the weekend, I converted my laptop to use the...

For comparison s sake, here is a comparison of the fsck time of the same collection of files and directories, comparing ext3 and the original ext4 block and inode allocator. The file system in question is a 32GB install of Ubuntu Jaunty, with a personal home directory, a rather large Maildir directory, some linux kernel trees, and an e2fsprogs tree. It s basically the emergency environment I set up on my Netbook at FOSDEM. In all cases the file systems were freshly copied from the original root directory using the command rsync -axH / /mnt. It s actually a bit surprising to me that ext3 s pass 2 e2fsck times was that much better than e2fsck time under the old ext4 allocator. My previous experience has shown that the two are normally about the same, with a write throughput of around 9-10 MB/s on for e2fsck s pass 2 for both ext3 file systems and ext4 file systems with the original inode/block allocators. Hence, I would have expected ext3 s pass2 time to have been 12-13 seconds, and not 6. I m not sure how that happened, unless it was the luck of draw in terms of how things ended up getting allocated on disk. So I m not too sure what happened there, but overall things look quite good for ext4 and fsck times!

Comparison of e2fsck times on an 32GB partition

Pass	ext3						ext4 old allocator
	time (s)			I/O			time (s)			I/O
	real	user	system	MB read	MB/s		real	user	system	MB read	MB/s
1	108.40	13.74	11.53	583	5.38		6.69	4.06	0.90	82	12.25
2	5.91	1.74	2.56	133	22.51		13.34	2.30	3.78	133	9.97
3	0.03	0.01	0	1	31.21		0.02	0.01	0	1	63.85
4	0.28	0.27	0	0	0		0.28	0.27	0	0	0
5	3.17	0.92	0.13	2	0.63		2.60	2.31	0.03	1	0.38
Total	118.15	16.75	14.25	718	6.08		23.06	9.03	4.74	216	9.37

Vital Statistics of the 32GB partition

312214	inodes used (14.89%)
263	non-contiguous files (0.1%)
198	non-contiguous directories (0.1%)
	# of inodes with ind/dind/tind blocks: 0/0/0
	Extent depth histogram: 292698/40
4388697	blocks used (52.32%)
0	bad blocks
1	large file
263549	regular files
28022	directories
5	character device files
1	block device file
5	fifos
615	links
20618	symbolic links (19450 fast symbolic links)
5	sockets
312820	files

Related posts (automatically generated):

1. Fast ext4 fsck times This wasn t one of the things we were explicitly engineering...
2. Wanted: Incremental Backup Solutions that Use a Database Dear Lazyweb, I m looking for recommendations for Open Source backup...
3. Ext4 is now the primary filesystem on my laptop Over the weekend, I converted my laptop to use the...

1. Create a file
2. mkswap $file
3. swapon $file

• Lot of SMSD related changes.
  • New DBI backend which handles nicely many databases.
  • SMSD and inject tool are now separate binaries.
  • New monitoring tool for SMSD.
  • SMSD can now run as a Windows service.
  • SMSD behaves nicely as a daemon on Linux (syslog support, SIGHUP handling, proper daemonizing, etc.).
• Merger of python-gammu.
  • Python bindings are no longer separate projects, they are now part of Gammu release.
• Better support for Nokia USB cables on Linux.
  • Gammu now has libusb-1.0 based support for Nokia USB cables.
  • This gives us performance boost and support for DKU-2 cables.
• Much more tests.
  • About 1/3 of code is now covered by test cases.
  • Dummy phone backend to allow testing without connected phone.
• General code cleanup.
  • Fixed tons of problems found by test cases, valgrind and cppcheck.
  • Reorganised code structure a bit to make clear what parts are supported.
• Documentation.
  • Several new man pages have been added, most important is documentation for SMSD and all it's features.

function displayMonth(month,year,weekStart)
    local t,wkSt=os.time year=year, month=month+1, day=0 ,weekStart or 1
    local d=os.date("*t",t)
    local mthDays,stDay=d.day,(d.wday-d.day-wkSt+1)%7
    local lines =  
    for x=0,6 do
        lines[x+1] = os.date("%a ",os.time year=2006,month=1,day=x+wkSt )
    end
    lines[8] = "    "
    local writeLine = 1
    while writeLine < (stDay + 1) do
        lines[writeLine] = lines[writeLine] .. "   "
        writeLine = writeLine + 1
    end
    for x=1,mthDays do
        if writeLine == 8 then
            writeLine = 1
        end
        if writeLine == 1 or x == 1 then
            lines[8] = lines[8] .. os.date(" %V",os.time year=year,month=month,day=x )
        end
        if (#(tostring(x)) == 1) then
            x = " " .. x
        end
        lines[writeLine] = lines[writeLine] .. " " .. x
        writeLine = writeLine + 1
    end
    local header = os.date("%B %Y\n",os.time year=year,month=month,day=1 )
    header = string.rep(" ", math.floor((#(lines[1]) - #header) / 2 )) .. header
    return header .. table.concat(lines, '\n')
end
local calendar =  
function switchNaughtyMonth(switchMonths)
    if (#calendar < 3) then return end
    local swMonths = switchMonths or 1
    calendar[1] = calendar[1] + swMonths
    calendar[3].box.widgets[2].text = displayMonth(calendar[1], calendar[2], 2)
end
mytextbox.mouse_enter = function ()
    local month, year = os.date('%m'), os.date('%Y')
    calendar =   month, year, 
                naughty.notify( 
                    text = displayMonth(month, year, 2),
                    timeout = 0, hover_timeout = 0.5,
                    width = 200
                 )
                
end 
mytextbox.mouse_leave = function () naughty.destroy(calendar[3]) end
mytextbox:buttons( 
    button(   , 1, function()
        switchNaughtyMonth(-1)
    end),
    button(   , 3, function()
        switchNaughtyMonth(1)
    end),
    button(   , 4, function()
        switchNaughtyMonth(-1)
    end),
    button(   , 5, function()
        switchNaughtyMonth(1)
    end),
    button(  'Shift'  , 1, function()
        switchNaughtyMonth(-12)
    end),
    button(  'Shift'  , 3, function()
        switchNaughtyMonth(12)
    end),
    button(  'Shift'  , 4, function()
        switchNaughtyMonth(-12)
    end),
    button(  'Shift'  , 5, function()
        switchNaughtyMonth(12)
    end)
 )

function displayMonth(month,year,weekStart)
    local t,wkSt=os.time year=year, month=month+1, day=0 ,weekStart or 1
    local d=os.date("*t",t)
    local mthDays,stDay=d.day,(d.wday-d.day-wkSt+1)%7
    local lines =  
    for x=0,6 do
        lines[x+1] = os.date("%a ",os.time year=2006,month=1,day=x+wkSt )
    end
    lines[8] = "    "
    local writeLine = 1
    while writeLine < (stDay + 1) do
        lines[writeLine] = lines[writeLine] .. "   "
        writeLine = writeLine + 1
    end
    for x=1,mthDays do
        if writeLine == 8 then
            writeLine = 1
        end
        if writeLine == 1 or x == 1 then
            lines[8] = lines[8] .. os.date(" %V",os.time year=year,month=month,day=x )
        end
        if (#(tostring(x)) == 1) then
            x = " " .. x
        end
        lines[writeLine] = lines[writeLine] .. " " .. x
        writeLine = writeLine + 1
    end
    local header = os.date("%B %Y\n",os.time year=year,month=month,day=1 )
    header = string.rep(" ", math.floor((#(lines[1]) - #header) / 2 )) .. header
    return header .. table.concat(lines, '\n')
end
local calendar =  
function switchNaughtyMonth(switchMonths)
    if (#calendar < 3) then return end
    local swMonths = switchMonths or 1
    calendar[1] = calendar[1] + swMonths
    calendar[3].box.widgets[2].text = displayMonth(calendar[1], calendar[2], 2)
end
mytextbox.mouse_enter = function ()
    local month, year = os.date('%m'), os.date('%Y')
    calendar =   month, year, 
                naughty.notify( 
                    text = displayMonth(month, year, 2),
                    timeout = 0, hover_timeout = 0.5,
                    width = 200, screen = mouse.screen
                 )
                
end 
mytextbox.mouse_leave = function () naughty.destroy(calendar[3]) end
mytextbox:buttons( 
    button(   , 1, function()
        switchNaughtyMonth(-1)
    end),
    button(   , 3, function()
        switchNaughtyMonth(1)
    end),
    button(   , 4, function()
        switchNaughtyMonth(-1)
    end),
    button(   , 5, function()
        switchNaughtyMonth(1)
    end),
    button(  'Shift'  , 1, function()
        switchNaughtyMonth(-12)
    end),
    button(  'Shift'  , 3, function()
        switchNaughtyMonth(12)
    end),
    button(  'Shift'  , 4, function()
        switchNaughtyMonth(-12)
    end),
    button(  'Shift'  , 5, function()
        switchNaughtyMonth(12)
    end)
 )