- 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>.
+ 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>.
+
+ </div>
+</div>
+ <div class="padding"></div>
+
+<div class="entry">
+ <div class="title">
+ <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>
+ </div>
+ <div class="date">
+ 2010-05-19 19:00
+ </div>
+
+ <div class="body">
+
+<p>Today, the last piece of the puzzle for roaming laptops in Debian
+Edu finally entered the Debian archive. Today, the new
+<a href="http://packages.qa.debian.org/libp/libpam-mklocaluser.html">libpam-mklocaluser</a>
+package was accepted. Two days ago, two other pieces was accepted
+into unstable. The
+<a href="http://packages.qa.debian.org/p/pam-python.html">pam-python</a>
+package needed by libpam-mklocaluser, and the
+<a href="http://packages.qa.debian.org/s/sssd.html">sssd</a> package
+passed NEW on Monday. In addition, the
+<a href="http://packages.qa.debian.org/libp/libpam-ccreds.html">libpam-ccreds</a>
+package we need is in experimental (version 10-4) since Saturday, and
+hopefully will be moved to unstable soon.</p>
+
+<p>This collection of packages allow for two different setups for
+roaming laptops. The traditional setup would be using libpam-ccreds,
+nscd and libpam-mklocaluser with LDAP or Kerberos authentication,
+which should work out of the box if the configuration changes proposed
+for nscd in <a href="http://bugs.debian.org/485282">BTS report
+#485282</a> is implemented. The alternative setup is to use sssd with
+libpam-mklocaluser to connect to LDAP or Kerberos and let sssd take
+care of the caching of passwords and group information.</p>
+
+<p>I have so far been unable to get sssd to work with the LDAP server
+at the University, but suspect the issue is some SSL/GnuTLS related
+problem with the server certificate. I plan to update the Debian
+package to version 1.2, which is scheduled for next week, and hope to
+find time to make sure the next release will include both the
+Debian/Ubuntu specific patches. Upstream is friendly and responsive,
+and I am sure we will find a good solution.</p>
+
+<p>The idea is to set up the roaming laptops to authenticate using
+LDAP or Kerberos and create a local user with home directory in /home/
+when a usre in LDAP logs in via KDM or GDM for the first time, and
+cache the password for offline checking, as well as caching group
+memberhips and other relevant LDAP information. The
+libpam-mklocaluser package was created to make sure the local home
+directory is in /home/, instead of /site/server/directory/ which would
+be the home directory if pam_mkhomedir was used. To avoid confusion
+with support requests and configuration, we do not want local laptops
+to have users in a path that is used for the same users home directory
+on the home directory servers.</p>
+
+<p>One annoying problem with gdm is that it do not show the PAM
+message passed to the user from libpam-mklocaluser when the local user
+is created. Instead gdm simply reject the login with some generic
+message. The message is shown in kdm, ssh and login, so I guess it is
+a bug in gdm. Have not investigated if there is some other message
+type that can be used instead to get gdm to also show the message.</p>
+
+<p>If you want to help out with implementing this for Debian Edu,
+please contact us on debian-edu@lists.debian.org.</p>
+
+ </div>
+ <div class="tags">
+
+
+
+ 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>.
</div>
</div>
<li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
-<li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (5)</a></li>
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (6)</a></li>
</ul></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (18)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (16)</a></li>
-
- <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-edu">debian-edu (1)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (18)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (28)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (29)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (1)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (64)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (72)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (73)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (12)</a></li>
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