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   5   <title>Petter Reinholdtsen: entries from May 
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  14        <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a> 
  20  <p>Entries from May 
2010.
</p> 
  25  <a href=
"http://people.skolelinux.org/pere/blog/Forcing_new_users_to_change_their_password_on_first_login.html">Forcing new users to change their password on first login
</a> 
  33 <p>One interesting feature in Active Directory, is the ability to
 
  34 create a new user with an expired password, and thus force the user to
 
  35 change the password on the first login attempt.
</p> 
  37 <p>I'm not quite sure how to do that with the LDAP setup in Debian
 
  38 Edu, but did some initial testing with a local account.  The account
 
  39 and password aging information is available in /etc/shadow, but
 
  40 unfortunately, it is not possible to specify an expiration time for
 
  41 passwords, only a maximum age for passwords.
</p> 
  43 <p>A freshly created account (using adduser test) will have these
 
  44 settings in /etc/shadow:
</p> 
  47 root@tjener:~# chage -l test
 
  48 Last password change                                    : May 
02, 
2010 
  49 Password expires                                        : never
 
  50 Password inactive                                       : never
 
  51 Account expires                                         : never
 
  52 Minimum number of days between password change          : 
0 
  53 Maximum number of days between password change          : 
99999 
  54 Number of days of warning before password expires       : 
7 
  58 <p>The only way I could come up with to create a user with an expired
 
  59 account, is to change the date of the last password change to the
 
  60 lowest value possible (January 
1th 
1970), and the maximum password age
 
  61 to the difference in days between that date and today.  To make it
 
  62 simple, I went for 
30 years (
30 * 
365 = 
10950) and January 
2th (to
 
  63 avoid testing if 
0 is a valid value).
</p> 
  65 <p>After using these commands to set it up, it seem to work as
 
  69 root@tjener:~# chage -d 
1 test; chage -M 
10950 test
 
  70 root@tjener:~# chage -l test
 
  71 Last password change                                    : Jan 
02, 
1970 
  72 Password expires                                        : never
 
  73 Password inactive                                       : never
 
  74 Account expires                                         : never
 
  75 Minimum number of days between password change          : 
0 
  76 Maximum number of days between password change          : 
10950 
  77 Number of days of warning before password expires       : 
7 
  81 <p>So far I have tested this with ssh and console, and kdm (in
 
  82 Squeeze) login, and all ask for a new password before login in the
 
  83 user (with ssh, I was thrown out and had to log in again).
</p> 
  85 <p>Perhaps we should set up something similar for Debian Edu, to make
 
  86 sure only the user itself have the account password?
</p> 
  88 <p>If you want to comment on or help out with implementing this for
 
  89 Debian Edu, please contact us on debian-edu@lists.debian.org.
</p> 
  91 <p>Update 
2010-
05-
02 17:
20: Paul Tötterman tells me on IRC that the
 
  92 shadow(
8) page in Debian/testing now state that setting the date of
 
  93 last password change to zero (
0) will force the password to be changed
 
  94 on the first login.  This was not mentioned in the manual in Lenny, so
 
  95 I did not notice this in my initial testing.  I have tested it on
 
  96 Squeeze, and '
<tt>chage -d 
0 username
</tt>' do work there.  I have not
 
  97 tested it on Lenny yet.
</p> 
  99 <p>Update 
2010-
05-
02-
19:
05: Jim Paris tells me via email that an
 
 100 equivalent command to expire a password is '
<tt>passwd -e
 
 101 username
</tt>', which insert zero into the date of the last password
 
 109   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet
</a>.
 
 113  <div class=
"padding"></div> 
 117  <a href=
"http://people.skolelinux.org/pere/blog/Parallellizing_the_boot_in_Debian_Squeeze___ready_for_wider_testing.html">Parallellizing the boot in Debian Squeeze - ready for wider testing
</a> 
 125 <p>These days, the init.d script dependencies in Squeeze are quite
 
 126 complete, so complete that it is actually possible to run all the
 
 127 init.d scripts in parallell based on these dependencies.  If you want
 
 128 to test your Squeeze system, make sure
 
 129 <a href=
"http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot">dependency
 
 130 based boot sequencing
</a> is enabled, and add this line to
 
 131 /etc/default/rcS:
</p> 
 137 <p>That is it.  It will cause sysv-rc to use the startpar tool to run
 
 138 scripts in parallel using the dependency information stored in
 
 139 /etc/init.d/.depend.boot, /etc/init.d/.depend.start and
 
 140 /etc/init.d/.depend.stop to order the scripts.  Startpar is configured
 
 141 to try to start the kdm and gdm scripts as early as possible, and will
 
 142 start the facilities required by kdm or gdm as early as possible to
 
 143 make this happen.
</p> 
 145 <p>Give it a try, and see if you like the result.  If some services
 
 146 fail to start properly, it is most likely because they have incomplete
 
 147 init.d script dependencies in their startup script (or some of their
 
 148 dependent scripts have incomplete dependencies).  Report bugs and get
 
 149 the package maintainers to fix it. :)
</p> 
 151 <p>Running scripts in parallel could be the default in Debian when we
 
 152 manage to get the init.d script dependencies complete and correct.  I
 
 153 expect we will get there in Squeeze+
1, if we get manage to test and
 
 154 fix the remaining issues.
</p> 
 156 <p>If you report any problems with dependencies in init.d scripts to
 
 157 the BTS, please usertag the report to get it to show up at
 
 158 <a href=
"http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=initscripts-ng-devel@lists.alioth.debian.org">the
 
 159 list of usertagged bugs related to this
</a>.
</p> 
 166   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
 
 170  <div class=
"padding"></div> 
 174  <a href=
"http://people.skolelinux.org/pere/blog/systemd__an_interesting_alternative_to_upstart.html">systemd, an interesting alternative to upstart
</a> 
 182 <p>The last few days a new boot system called
 
 183 <a href=
"http://www.freedesktop.org/wiki/Software/systemd">systemd
</a> 
 185 <a href=
"http://0pointer.de/blog/projects/systemd.html">introduced
</a> 
 187 to the free software world.  I have not yet had time to play around
 
 188 with it, but it seem to be a very interesting alternative to
 
 189 <a href=
"http://upstart.ubuntu.com/">upstart
</a>, and might prove to be
 
 190 a good alternative for Debian when we are able to switch to an event
 
 191 based boot system.  Tollef is
 
 192 <a href=
"http://bugs.debian.org/580814">in the process
</a> of getting
 
 193 systemd into Debian, and I look forward to seeing how well it work.  I
 
 194 like the fact that systemd handles init.d scripts with dependency
 
 195 information natively, allowing them to run in parallel where upstart
 
 196 at the moment do not.
</p> 
 198 <p>Unfortunately do systemd have the same problem as upstart regarding
 
 199 platform support.  It only work on recent Linux kernels, and also need
 
 200 some new kernel features enabled to function properly.  This means
 
 201 kFreeBSD and Hurd ports of Debian will need a port or a different boot
 
 202 system.  Not sure how that will be handled if systemd proves to be the
 
 205 <p>In the mean time, based on the
 
 206 <a href=
"http://lists.debian.org/debian-devel/2010/05/msg00122.html">input
 
 207 on debian-devel@
</a> regarding parallel booting in Debian, I have
 
 208 decided to enable full parallel booting as the default in Debian as
 
 209 soon as possible (probably this weekend or early next week), to see if
 
 210 there are any remaining serious bugs in the init.d dependencies.  A
 
 211 new version of the sysvinit package implementing this change is
 
 212 already in experimental.  If all go well, Squeeze will be released
 
 213 with parallel booting enabled by default.
</p> 
 220   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>.
 
 224  <div class=
"padding"></div> 
 228  <a href=
"http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_MAC_address_of_all_clients.html">Sitesummary tip: Listing MAC address of all clients
</a> 
 236 <p>In the recent Debian Edu versions, the
 
 237 <a href=
"http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">sitesummary
 
 238 system
</a> is used to keep track of the machines in the school
 
 239 network.  Each machine will automatically report its status to the
 
 240 central server after boot and once per night.  The network setup is
 
 241 also reported, and using this information it is possible to get the
 
 242 MAC address of all network interfaces in the machines.  This is useful
 
 243 to update the DHCP configuration.
</p> 
 245 <p>To give some idea how to use sitesummary, here is a one-liner to
 
 246 ist all MAC addresses of all machines reporting to sitesummary.  Run
 
 247 this on the collector host:
</p> 
 250 perl -MSiteSummary -e 'for_all_hosts(sub { print join(" ", get_macaddresses(shift)), "\n"; });'
 
 253 <p>This will list all MAC addresses assosiated with all machine, one
 
 254 line per machine and with space between the MAC addresses.
</p> 
 256 <p>To allow system administrators easier job at adding static DHCP
 
 257 addresses for hosts, it would be possible to extend this to fetch
 
 258 machine information from sitesummary and update the DHCP and DNS
 
 259 tables in LDAP using this information.  Such tool is unfortunately not
 
 267   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary
</a>.
 
 271  <div class=
"padding"></div> 
 275  <a href=
"http://people.skolelinux.org/pere/blog/Parallellized_boot_is_now_the_default_in_Debian_unstable.html">Parallellized boot is now the default in Debian/unstable
</a> 
 283 <p>Since this evening, parallel booting is the default in
 
 284 Debian/unstable for machines using dependency based boot sequencing.
 
 285 Apparently the testing of concurrent booting has been wider than
 
 286 expected, if I am to believe the
 
 287 <a href=
"http://lists.debian.org/debian-devel/2010/05/msg00122.html">input
 
 288 on debian-devel@
</a>, and I concluded a few days ago to move forward
 
 289 with the feature this weekend, to give us some time to detect any
 
 290 remaining problems before Squeeze is frozen.  If serious problems are
 
 291 detected, it is simple to change the default back to sequential boot.
 
 292 The upload of the new sysvinit package also activate a new upstream
 
 295 More information about
 
 296 <a href=
"http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot">dependency
 
 297 based boot sequencing
</a> is available from the Debian wiki.  It is
 
 298 currently possible to disable parallel booting when one run into
 
 299 problems caused by it, by adding this line to /etc/default/rcS:
</p> 
 305 <p>If you report any problems with dependencies in init.d scripts to
 
 306 the BTS, please usertag the report to get it to show up at
 
 307 <a href=
"http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=initscripts-ng-devel@lists.alioth.debian.org">the
 
 308 list of usertagged bugs related to this
</a>.
</p> 
 315   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
 
 319  <div class=
"padding"></div> 
 323  <a href=
"http://people.skolelinux.org/pere/blog/Pieces_of_the_roaming_laptop_puzzle_in_Debian.html">Pieces of the roaming laptop puzzle in Debian
</a> 
 331 <p>Today, the last piece of the puzzle for roaming laptops in Debian
 
 332 Edu finally entered the Debian archive.  Today, the new
 
 333 <a href=
"http://packages.qa.debian.org/libp/libpam-mklocaluser.html">libpam-mklocaluser
</a> 
 334 package was accepted.  Two days ago, two other pieces was accepted
 
 336 <a href=
"http://packages.qa.debian.org/p/pam-python.html">pam-python
</a> 
 337 package needed by libpam-mklocaluser, and the
 
 338 <a href=
"http://packages.qa.debian.org/s/sssd.html">sssd
</a> package
 
 339 passed NEW on Monday.  In addition, the
 
 340 <a href=
"http://packages.qa.debian.org/libp/libpam-ccreds.html">libpam-ccreds
</a> 
 341 package we need is in experimental (version 
10-
4) since Saturday, and
 
 342 hopefully will be moved to unstable soon.
</p> 
 344 <p>This collection of packages allow for two different setups for
 
 345 roaming laptops.  The traditional setup would be using libpam-ccreds,
 
 346 nscd and libpam-mklocaluser with LDAP or Kerberos authentication,
 
 347 which should work out of the box if the configuration changes proposed
 
 348 for nscd in 
<a href=
"http://bugs.debian.org/485282">BTS report
 
 349 #
485282</a> is implemented.  The alternative setup is to use sssd with
 
 350 libpam-mklocaluser to connect to LDAP or Kerberos and let sssd take
 
 351 care of the caching of passwords and group information.
</p> 
 353 <p>I have so far been unable to get sssd to work with the LDAP server
 
 354 at the University, but suspect the issue is some SSL/GnuTLS related
 
 355 problem with the server certificate.  I plan to update the Debian
 
 356 package to version 
1.2, which is scheduled for next week, and hope to
 
 357 find time to make sure the next release will include both the
 
 358 Debian/Ubuntu specific patches.  Upstream is friendly and responsive,
 
 359 and I am sure we will find a good solution.
</p> 
 361 <p>The idea is to set up the roaming laptops to authenticate using
 
 362 LDAP or Kerberos and create a local user with home directory in /home/
 
 363 when a usre in LDAP logs in via KDM or GDM for the first time, and
 
 364 cache the password for offline checking, as well as caching group
 
 365 memberhips and other relevant LDAP information.  The
 
 366 libpam-mklocaluser package was created to make sure the local home
 
 367 directory is in /home/, instead of /site/server/directory/ which would
 
 368 be the home directory if pam_mkhomedir was used.  To avoid confusion
 
 369 with support requests and configuration, we do not want local laptops
 
 370 to have users in a path that is used for the same users home directory
 
 371 on the home directory servers.
</p> 
 373 <p>One annoying problem with gdm is that it do not show the PAM
 
 374 message passed to the user from libpam-mklocaluser when the local user
 
 375 is created.  Instead gdm simply reject the login with some generic
 
 376 message.  The message is shown in kdm, ssh and login, so I guess it is
 
 377 a bug in gdm.  Have not investigated if there is some other message
 
 378 type that can be used instead to get gdm to also show the message.
</p> 
 380 <p>If you want to help out with implementing this for Debian Edu,
 
 381 please contact us on debian-edu@lists.debian.org.
</p> 
 388   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>.
 
 392  <div class=
"padding"></div> 
 396  <a href=
"http://people.skolelinux.org/pere/blog/Magnetstripeinnhold_i_billetter_fra_Flytoget_og_Hurtigruten.html">Magnetstripeinnhold i billetter fra Flytoget og Hurtigruten
</a> 
 404 <p>For en stund tilbake kjøpte jeg en magnetkortleser for å kunne
 
 405 titte på hva som er skrevet inn på magnetstripene til ulike kort.  Har
 
 406 ikke hatt tid til å analysere mange kort så langt, men tenkte jeg
 
 407 skulle dele innholdet på to kort med mine lesere.
</p> 
 409 <p>For noen dager siden tok jeg flyet til Harstad og Hurtigruten til
 
 410 Bergen.  Flytoget fra Oslo S til flyplassen ga meg en billett med
 
 411 magnetstripe.  Påtrykket finner jeg følgende informasjon:
</p> 
 414 Flytoget Airport Express Train
 
 416 Fra - Til        : Oslo Sentralstasjon
 
 419 Herav mva. 
8,
00% : NOK 
12,
59 
 421 Til - Fra        : Oslo Lufthavn
 
 423 Gyldig Fra-Til   : 
08.05.10-
07.11.10 
 424 Billetttype      : Enkeltbillett
 
 426 102-
1015-
100508-
48382-
01-
08 
 429 <p>PÃ¥ selve magnetstripen er innholdet
 
 430 <tt>;E?+
900120011=
23250996541068112619257138248441708433322932704083389389062603279671261502492655?
</tt>.
 
 431 Aner ikke hva innholdet representerer, og det er lite overlapp mellom
 
 432 det jeg ser trykket på billetten og det jeg ser av tegn i
 
 433 magnetstripen.  HÃ¥per det betyr at de bruker kryptografiske metoder
 
 434 for å gjøre det vanskelig å forfalske billetter.
</p> 
 436 <p>Den andre billetten er fra Hurtigruten, der jeg mistenker at
 
 437 strekkoden på fronten er mer brukt enn magnetstripen (det var i hvert
 
 438 fall den biten vi stakk inn i dørlåsen).
</p> 
 440 <p>Påtrykket forsiden er følgende:
</p> 
 448 Bookingno: SAX69   
0742193 
 450 Dep: 
09.05.2010 Arr: 
12.05.2010 
 455 <p>PÃ¥ selve magnetstripen er innholdet
 
 456 <tt>;
1316010007421930=
00000000000000000000?+E?
</tt>.  Heller ikke her
 
 457 ser jeg mye korrespondanse mellom påtrykk og magnetstripe.
</p> 
 464   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet
</a>.
 
 468  <div class=
"padding"></div> 
 472  <a href=
"http://people.skolelinux.org/pere/blog/More_flexible_firmware_handling_in_debian_installer.html">More flexible firmware handling in debian-installer
</a> 
 480 <p>After a long break from debian-installer development, I finally
 
 481 found time today to return to the project.  Having to spend less time
 
 482 working dependency based boot in debian, as it is almost complete now,
 
 483 definitely helped freeing some time.
</p> 
 485 <p>A while back, I ran into a problem while working on Debian Edu.  We
 
 486 include some firmware packages on the Debian Edu CDs, those needed to
 
 487 get disk and network controllers working.  Without having these
 
 488 firmware packages available during installation, it is impossible to
 
 489 install Debian Edu on the given machine, and because our target group
 
 490 are non-technical people, asking them to provide firmware packages on
 
 491 an external medium is a support pain.  Initially, I expected it to be
 
 492 enough to include the firmware packages on the CD to get
 
 493 debian-installer to find and use them.  This proved to be wrong.
 
 494 Next, I hoped it was enough to symlink the relevant firmware packages
 
 495 to some useful location on the CD (tried /cdrom/ and
 
 496 /cdrom/firmware/).  This also proved to not work, and at this point I
 
 497 found time to look at the debian-installer code to figure out what was
 
 500 <p>The firmware loading code is in the hw-detect package, and a closer
 
 501 look revealed that it would only look for firmware packages outside
 
 502 the installation media, so the CD was never checked for firmware
 
 503 packages.  It would only check USB sticks, floppies and other
 
 504 "external" media devices.  Today I changed it to also look in the
 
 505 /cdrom/firmware/ directory on the mounted CD or DVD, which should
 
 506 solve the problem I ran into with Debian edu.  I also changed it to
 
 507 look in /firmware/, to make sure the installer also find firmware
 
 508 provided in the initrd when booting the installer via PXE, to allow us
 
 509 to provide the same feature in the PXE setup included in Debian
 
 512 <p>To make sure firmware deb packages with a license questions are not
 
 513 activated without asking if the license is accepted, I extended
 
 514 hw-detect to look for preinst scripts in the firmware packages, and
 
 515 run these before activating the firmware during installation.  The
 
 516 license question is asked using debconf in the preinst, so this should
 
 517 solve the issue for the firmware packages I have looked at so far.
</p> 
 519 <p>If you want to discuss the details of these features, please
 
 520 contact us on debian-boot@lists.debian.org.
</p> 
 527   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
 
 531  <div class=
"padding"></div> 
 535  <a href=
"http://people.skolelinux.org/pere/blog/Parallellized_boot_seem_to_hold_up_well_in_Debian_testing.html">Parallellized boot seem to hold up well in Debian/testing
</a> 
 543 <p>A few days ago, parallel booting was enabled in Debian/testing.
 
 544 The feature seem to hold up pretty well, but three fairly serious
 
 545 issues are known and should be solved:
 
 549 <li>The wicd package seen to
 
 550 <a href=
"http://bugs.debian.org/508289">break NFS mounting
</a> and
 
 551 <a href=
"http://bugs.debian.org/581586">network setup
</a> when
 
 552 parallel booting is enabled.  No idea why, but the wicd maintainer
 
 553 seem to be on the case.
</li> 
 555 <li>The nvidia X driver seem to
 
 556 <a href=
"http://bugs.debian.org/583312">have a race condition
</a> 
 557 triggered more easily when parallel booting is in effect.  The
 
 558 maintainer is on the case.
</li> 
 560 <li>The sysv-rc package fail to properly enable dependency based boot
 
 561 sequencing (the shutdown is broken) when old file-rc users
 
 562 <a href=
"http://bugs.debian.org/575080">try to switch back
</a> to
 
 563 sysv-rc.  One way to solve it would be for file-rc to create
 
 564 /etc/init.d/.legacy-bootordering, and another is to try to make
 
 565 sysv-rc more robust.  Will investigate some more and probably upload a
 
 566 workaround in sysv-rc to help those trying to move from file-rc to
 
 567 sysv-rc get a working shutdown.
</li> 
 571 <p>All in all not many surprising issues, and all of them seem
 
 572 solvable before Squeeze is released.  In addition to these there are
 
 573 some packages with bugs in their dependencies and run level settings,
 
 574 which I expect will be fixed in a reasonable time span.
</p> 
 576 <p>If you report any problems with dependencies in init.d scripts to
 
 577 the BTS, please usertag the report to get it to show up at
 
 578 <a href=
"http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=initscripts-ng-devel@lists.alioth.debian.org">the
 
 579 list of usertagged bugs related to this
</a>.
</p> 
 581 <p>Update: Correct bug number to file-rc issue.
</p> 
 588   Tags: 
<a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>, 
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
 
 592  <div class=
"padding"></div> 
 594  <p style=
"text-align: right;"><a href=
"05.rss"><img src=
"http://people.skolelinux.org/pere/blog/xml.gif" alt=
"RSS Feed" width=
"36" height=
"14"></a></p> 
 606 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/01/">January (
2)
</a></li> 
 608 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/02/">February (
1)
</a></li> 
 610 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/03/">March (
3)
</a></li> 
 612 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/04/">April (
3)
</a></li> 
 614 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/05/">May (
9)
</a></li> 
 616 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/06/">June (
14)
</a></li> 
 618 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/07/">July (
12)
</a></li> 
 620 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/08/">August (
13)
</a></li> 
 622 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/09/">September (
7)
</a></li> 
 624 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/10/">October (
9)
</a></li> 
 626 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/11/">November (
7)
</a></li> 
 633 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/01/">January (
8)
</a></li> 
 635 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/02/">February (
8)
</a></li> 
 637 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/03/">March (
12)
</a></li> 
 639 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/04/">April (
10)
</a></li> 
 641 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/05/">May (
9)
</a></li> 
 643 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/06/">June (
3)
</a></li> 
 645 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/07/">July (
4)
</a></li> 
 647 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/08/">August (
3)
</a></li> 
 649 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/09/">September (
1)
</a></li> 
 651 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/10/">October (
2)
</a></li> 
 653 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/11/">November (
3)
</a></li> 
 655 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/12/">December (
3)
</a></li> 
 662 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/11/">November (
5)
</a></li> 
 664 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/12/">December (
7)
</a></li> 
 675  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (
12)
</a></li> 
 677  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/amiga">amiga (
1)
</a></li> 
 679  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/aros">aros (
1)
</a></li> 
 681  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (
10)
</a></li> 
 683  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian (
39)
</a></li> 
 685  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (
47)
</a></li> 
 687  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
68)
</a></li> 
 689  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
1)
</a></li> 
 691  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
11)
</a></li> 
 693  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
5)
</a></li> 
 695  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
8)
</a></li> 
 697  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
4)
</a></li> 
 699  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li> 
 701  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
10)
</a></li> 
 703  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
90)
</a></li> 
 705  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
113)
</a></li> 
 707  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
18)
</a></li> 
 709  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
25)
</a></li> 
 711  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
10)
</a></li> 
 713  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
4)
</a></li> 
 715  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li> 
 717  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
18)
</a></li> 
 719  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
3)
</a></li> 
 721  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
16)
</a></li> 
 723  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
1)
</a></li> 
 725  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
15)
</a></li> 
 727  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
1)
</a></li> 
 729  <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
13)
</a></li>