+ <div class="entry">
+ <div class="title"><a href="http://people.skolelinux.org/pere/blog/First_Debian_Edu_test_release__alpha0__based_on_Squeeze_is_released.html">First Debian Edu test release (alpha0) based on Squeeze is released</a></div>
+ <div class="date">2010-07-27 17:45</div>
+ <div class="body">
+<p>I just posted this announcement culminating several months of work
+with the next Debian Edu release. Not nearly done, but one major step
+completed.</p>
+
+<blockquote>
+<p>This is the first test release based on Squeeze. The focus of this
+release is to test the user application selection. To have a look,
+install the standalone profile and let the developers know if the set
+of installed packages i.e. applications should be modified. If some
+user application is missing, or if there are some applications that no
+longer make sense to be included in Debian Edu, please let us know.
+Also, if a useful application is missing the translation for your
+language of choice, please let us know too.</p>
+
+<p>In addition, feedback and help to polish the desktop (menus,
+artwork, starters, etc.) is appreciated. We would like to ship a nice
+and handy KDE4 desktop targeted for schools out of the box.</p>
+
+<p>The other profiles should be installable, but there is a lot more
+work left to be done before they are ready, so do not expect to
+much.</p>
+
+<p>Changes compared to the lenny based version</p>
+
+<ul>
+<li>Everything from Debian Squeeze
+<ul>
+ <li>Desktop environment KDE 4.4 => the new KDE desktop in
+ combination with some new artwork
+ <li>Web browser Iceweasel 3.5
+ <li>OpenOffice.org 3.2
+ <li>Educational toolbox GCompris 9.3
+ <li>Music creator Rosegarden 10.04.2
+ <li>Image editor Gimp 2.6.10
+ <li>Virtual universe Celestia 1.6.0
+ <li>Virtual stargazer Stellarium 0.10.4
+ <li>3D modeler Blender 2.49.2 (new application)
+ <li>Video editor Kdenlive 0.7.7 (new application)
+</ul></li>
+<li>Now using Kerberos for password checking (migration not finished).
+ Enabled for:
+<ul>
+ <li>PAM
+ <li>LDAP
+ <li>IMAP
+ <li>SMTP (sender verification)
+</ul>
+</li>
+<li>New experimental roaming workstation profile for laptops.</li>
+<li>Show welcome page to users when they first log in. The URL is
+ fetched from LDAP.</li>
+<li>New LXDE desktop option, in addition to KDE (default) and Gnome.</li>
+<li>General cleanup (not finished)</li>
+</ul>
+<p>The following features are not working as they should</p>
+
+<ul>
+<li>No web based administration tool for creating users and groups. The
+ scripts ldap-createuser-krb and ldap-add-user-to-group can be used
+ for testing.</li>
+<li>DVD installs are missing debian-installer images for the PXE boot,
+ and do not set up the PXE menu on eth0 because of this. LTSP
+ clients should still boot from eth1 on thin client servers.</li>
+<li>The restructured KDE menu is not implemented.</li>
+<li>The LDAP server setup need to be reviewed for security.</li>
+<li>The LDAP directory structure need to be reworked.</li>
+<li>Different sets of packages are installed when using the DVD and the
+ netinst CD. More packages are installed using the netinst CD.</li>
+<li>The jackd package fail to install. This is believed to be caused by
+ some ongoing transition, and hopefully should be solved soon. The
+ jackd1 package can be installed manually for those that need it.</li>
+<li>Some packages lack translations. See
+ http://wiki.debian.org/DebianEdu/Status/Squeeze for updated status,
+ and help out with translations.</li>
+</ul>
+
+<p>To download this multiarch netinstall release you can use</p>
+
+<ul>
+<li><a href="ftp://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-CD.iso">ftp://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-CD.iso</a></li>
+<li><a href="http://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-CD.iso">http://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-CD.iso</a></li>
+<li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-CD.iso</li>
+</ul>
+<p>To download this multiarch dvd release you can use</p>
+
+<ul>
+<li><a href="ftp://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-DVD.iso">ftp://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-DVD.iso</a></li>
+<li><a href="http://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-DVD.iso">http://ftp.skolelinux.org/skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-DVD.iso</a></li>
+<li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/squeeze-alpha/debian-edu-6.0.0+edua0-DVD.iso</li>
+</ul>
+
+<p>There is no source DVD available yet. It will be prepared when we
+get closer to the final release.</p>
+
+<p>The MD5SUM of these images are</p>
+
+<ul>
+<li>3dbf45d59f42a53518b6e3c9ec3b5eb6 debian-edu-6.0.0+edua0-CD.iso</li>
+<li>22f2cbfce281d1c6e478be452638675d debian-edu-6.0.0+edua0-DVD.iso</li>
+</ul>
+
+<p>The SHA1SUM of these images are</p>
+<ul>
+<li>c53d1b69b40cf37cd27aefaf33f6f6a3821bedf0 debian-edu-6.0.0+edua0-CD.iso</li>
+<li>2ec29d7db676d59d32197b05c277ffe16348376c debian-edu-6.0.0+edua0-DVD.iso</li>
+</ul>
+<p>How to report bugs:
+http://wiki.debian.org/DebianEdu/HowTo/ReportBugsInBugzilla</p>
+
+<p>Please direct replies to debian-edu@lists.debian.org</p>
+</blockquote>
+</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>
+ <div class="padding"></div>
+
<div class="entry">
<div class="title"><a href="http://people.skolelinux.org/pere/blog/One_step_closer_to_single_signon_in_Debian_Edu.html">One step closer to single signon in Debian Edu</a></div>
<div class="date">2010-07-25 10:00</div>
</div>
<div class="padding"></div>
- <div class="entry">
- <div class="title"><a href="http://people.skolelinux.org/pere/blog/Caching_password__user_and_group_on_a_roaming_Debian_laptop.html">Caching password, user and group on a roaming Debian laptop</a></div>
- <div class="date">2010-07-01 11:40</div>
- <div class="body">
-<p>For a laptop, centralized user directories and password checking is
-a bit troubling. Laptops are typically used also when not connected
-to the network, and it is vital for a user to be able to log in or
-unlock the screen saver also when a central server is unavailable.
-This is possible by caching passwords and directory information (user
-and group attributes) locally, and the packages to do so are available
-in Debian. Here follow two recipes to set this up in Debian/Squeeze.
-It is also possible to set up in Debian/Lenny, but require more manual
-setup there because pam-auth-update is missing in Lenny.</p>
-
-<h2>LDAP/Kerberos + nscd + libpam-ccreds + libpam-mklocaluser/pam_mkhomedir</h2>
-
-This is the traditional method with a twist. The password caching is
-provided by libpam-ccreds (version 10-4 or later is needed on
-Squeeze), and the directory caching is done by nscd. The directory
-lookup and password checking is done using LDAP. If one want to use
-Kerberos for password checking the libpam-ldapd package can be
-replaced with libpam-krb5 or libpam-heimdal. If one is happy having a
-local home directory with the path listed in LDAP, one can use the
-pam_mkhomedir module from pam-modules to make this happen instead of
-using libpam-mklocaluser. A setup for pam-auth-update to enable
-pam_mkhomedir will have to be written until a fix for
-<a href="http://bugs.debian.org/568577">bug #568577</a> is in the
-archive. Because I believe it is a bad idea to have local home
-directories using misleading paths like /site/server/partition/, I
-prefer to create a local user with the home directory in /home/. This
-is done using the libpam-mklocaluser package.</p>
-
-<p>These packages need to be installed and configured</p>
-
-<blockquote><pre>
-libnss-ldapd libpam-ldapd nscd libpam-ccreds libpam-mklocaluser
-</pre></blockquote>
-
-<p>The ldapd packages will ask for LDAP connection information, and
-one have to fill in the values that fits ones own site. Make sure the
-PAM part uses encrypted connections, to make sure the password is not
-sent in clear text to the LDAP server. I've been unable to get TLS
-certificate checking for a self signed certificate working, which make
-LDAP authentication unsafe for Debian Edu (nslcd is not checking if it
-is talking to the correct LDAP server), and very much welcome feedback
-on how to get this working.</p>
-
-<p>Because nscd do not have a default configuration fit for offline
-caching until <a href="http://bugs.debian.org/485282">bug #485282</a>
-is fixed, this configuration should be used instead of the one
-currently in /etc/nscd.conf. The changes are in the fields
-reload-count and positive-time-to-live, and is based on the
-instructions I found in the
-<a href="http://www.flyn.org/laptopldap/">LDAP for Mobile Laptops</a>
-instructions by Flyn Computing.</p>
-
-<blockquote><pre>
- debug-level 0
- reload-count unlimited
- paranoia no
-
- enable-cache passwd yes
- positive-time-to-live passwd 2592000
- negative-time-to-live passwd 20
- suggested-size passwd 211
- check-files passwd yes
- persistent passwd yes
- shared passwd yes
- max-db-size passwd 33554432
- auto-propagate passwd yes
-
- enable-cache group yes
- positive-time-to-live group 2592000
- negative-time-to-live group 20
- suggested-size group 211
- check-files group yes
- persistent group yes
- shared group yes
- max-db-size group 33554432
- auto-propagate group yes
-
- enable-cache hosts no
- positive-time-to-live hosts 2592000
- negative-time-to-live hosts 20
- suggested-size hosts 211
- check-files hosts yes
- persistent hosts yes
- shared hosts yes
- max-db-size hosts 33554432
-
- enable-cache services yes
- positive-time-to-live services 2592000
- negative-time-to-live services 20
- suggested-size services 211
- check-files services yes
- persistent services yes
- shared services yes
- max-db-size services 33554432
-</pre></blockquote>
-
-<p>While we wait for a mechanism to update /etc/nsswitch.conf
-automatically like the one provided in
-<a href="http://bugs.debian.org/496915">bug #496915</a>, the file
-content need to be manually replaced to ensure LDAP is used as the
-directory service on the machine. /etc/nsswitch.conf should normally
-look like this:</p>
-
-<blockquote><pre>
-passwd: files ldap
-group: files ldap
-shadow: files ldap
-hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
-networks: files
-protocols: files
-services: files
-ethers: files
-rpc: files
-netgroup: files ldap
-</pre></blockquote>
-
-<p>The important parts are that ldap is listed last for passwd, group,
-shadow and netgroup.</p>
-
-<p>With these changes in place, any user in LDAP will be able to log
-in locally on the machine using for example kdm, get a local home
-directory created and have the password as well as user and group
-attributes cached.
-
-<h2>LDAP/Kerberos + nss-updatedb + libpam-ccreds +
- libpam-mklocaluser/pam_mkhomedir</h2>
-
-<p>Because nscd have had its share of problems, and seem to have
-problems doing proper caching, I've seen suggestions and recipes to
-use nss-updatedb to copy parts of the LDAP database locally when the
-LDAP database is available. I have not tested such setup, because I
-discovered sssd.</p>
-
-<h2>LDAP/Kerberos + sssd + libpam-mklocaluser</h2>
-
-<p>A more flexible and robust setup than the nscd combination
-mentioned earlier that has shown up recently, is the
-<a href="https://fedorahosted.org/sssd/">sssd</a> package from Redhat.
-It is part of the <a href="http://www.freeipa.org/">FreeIPA</A> project
-to provide a Active Directory like directory service for Linux
-machines. The sssd system combines the caching of passwords and user
-information into one package, and remove the need for nscd and
-libpam-ccreds. It support LDAP and Kerberos, but not NIS. Version
-1.2 do not support netgroups, but it is said that it will support this
-in version 1.5 expected to show up later in 2010. Because the
-<a href="http://packages.qa.debian.org/s/sssd.html">sssd package</a>
-was missing in Debian, I ended up co-maintaining it with Werner, and
-version 1.2 is now in testing.
-
-<p>These packages need to be installed and configured to get the
-roaming setup I want</p>
-
-<blockquote><pre>
-libpam-sss libnss-sss libpam-mklocaluser
-</pre></blockquote>
-
-The complete setup of sssd is done by editing/creating
-<tt>/etc/sssd/sssd.conf</tt>.
-
-<blockquote><pre>
-[sssd]
-config_file_version = 2
-reconnection_retries = 3
-sbus_timeout = 30
-services = nss, pam
-domains = INTERN
-
-[nss]
-filter_groups = root
-filter_users = root
-reconnection_retries = 3
-
-[pam]
-reconnection_retries = 3
-
-[domain/INTERN]
-enumerate = false
-cache_credentials = true
-
-id_provider = ldap
-auth_provider = ldap
-chpass_provider = ldap
-
-ldap_uri = ldap://ldap
-ldap_search_base = dc=skole,dc=skolelinux,dc=no
-ldap_tls_reqcert = never
-ldap_tls_cacert = /etc/ssl/certs/ca-certificates.crt
-</pre></blockquote>
-
-<p>I got the same problem here with certificate checking. Had to set
-"ldap_tls_reqcert = never" to get it working.</p>
-
-<p>With the libnss-sss package in testing at the moment, the
-nsswitch.conf file is update automatically, so there is no need to
-modify it manually.</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/ldap">ldap</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug</a>.
-
- </div>
- </div>
- <div class="padding"></div>
-
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