<div class="entry">
<div class="title">
- <a href="http://people.skolelinux.org/pere/blog/Automatic_Munin_and_Nagios_configuration.html">Automatic Munin and Nagios configuration</a>
+ <a href="http://people.skolelinux.org/pere/blog/Setting_up_a_new_school_with_Debian_Edu_Squeeze.html">Setting up a new school with Debian Edu/Squeeze</a>
</div>
<div class="date">
- 27th January 2010
+ 25th January 2012
</div>
<div class="body">
- <p>One of the new features in the next Debian/Lenny based release of
-Debian Edu/Skolelinux, which is scheduled for release in the next few
-days, is automatic configuration of the service monitoring system
-Nagios. The previous release had automatic configuration of trend
-analysis using Munin, and this Lenny based release take that a step
-further.</p>
-
-<p>When installing a Debian Edu Main-server, it is automatically
-configured as a Munin and Nagios server. In addition, it is
-configured to be a server for the
-<a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">SiteSummary
-system</a> I have written for use in Debian Edu. The SiteSummary
-system is inspired by a system used by the University of Oslo where I
-work. In short, the system provide a centralised collector of
-information about the computers on the network, and a client on each
-computer submitting information to this collector. This allow for
-automatic information on which packages are installed on each machine,
-which kernel the machines are using, what kind of configuration the
-packages got etc. This also allow us to automatically generate Munin
-and Nagios configuration.</p>
+ <p>The next version of <a href="http://www.skolelinux.org/">Debian Edu
+/ Skolelinux</a> will include a new tool
+<tt>sitesummary2ldapdhcp</tt>, which can be used to quickly set up all
+the computers in a school without much manual labour. Here is a short
+summary on how to use it to set up a new school.</p>
+
+<p>First, install a combined Main Server and Thin Client Server as the
+central server in the network. Next, PXE boot all the client machines
+as thin clients and wait 5 minutes after the last client booted to
+allow the clients to report their existence to the central server. When
+this is done, log on to the central server and run
+<tt>sitesummary2ldapdhcp -a</tt> in the <tt>konsole</tt> to use the
+collected information to generate system objects in LDAP. The output
+will look similar to this:</p>
+
+<p><blockquote><pre>
+% sitesummary2ldapdhcp -a
+info: Updating machine tjener.intern [10.0.2.2] id ether-00:01:02:03:04:05.
+info: Create GOsa machine for auto-mac-00-01-02-03-04-06 [10.0.16.20] id ether-00:01:02:03:04:06.
+
+Enter password if you want to activate these changes, and ^c to abort.
+
+Connecting to LDAP as cn=admin,ou=ldap-access,dc=skole,dc=skolelinux,dc=no
+enter password: *******
+%
+</pre></blockquote></p>
+
+<p>After providing the LDAP administrative password (the same as the
+root password set during installation), the LDAP database will be
+populated with system objects for each PXE booted machine with
+automatically generated names. The final step to set up the school is
+then to log into <a href="https://oss.gonicus.de/labs/gosa/">GOsa</a>,
+the web based user, group and system administration system to change
+system names, add systems to the correct host groups and finally
+enable DHCP and DNS for the systems. All clients that should be used
+as diskless workstations should be added to the workstation-hosts
+group. After this is done, all computers can be booted again via PXE
+and get their assigned names and group based configuration
+automatically.</p>
+
+<p>We plan to release beta3 with the updated version of this feature
+enabled this weekend. You might want to give it a try.</p>
+
+<p>Update 2012-01-28: When calling sitesummary2ldapdhcp to add new
+hosts, one need to add the option -a. I forgot to mention this in my
+original text, and have added it to the text now.</p>
-<p>All computers reporting to the sitesummary collector with the
-munin-node package installed is automatically enabled as a Munin
-client and graphs from the statistics collected from that machine show
-up automatically on http://www/munin/ on the Main-server.</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/sitesummary">sitesummary</a>.
+
+
+ </div>
+ </div>
+ <div class="padding"></div>
+
+ <div class="entry">
+ <div class="title">
+ <a href="http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_computer_hardware_models_used_at_site.html">Sitesummary tip: Listing computer hardware models used at site</a>
+ </div>
+ <div class="date">
+ 3rd June 2010
+ </div>
+ <div class="body">
+ <p>When using sitesummary at a site to track machines, it is possible
+to get a list of the machine types in use thanks to the DMI
+information extracted from each machine. The script to do so is
+included in the sitesummary package, and here is example output from
+the Skolelinux build servers:</p>
-<p>All non-laptop computers reporting to the sitesummary collector are
-automatically monitored for network presence (ping and any network
-services detected). In addition, all computers (also laptops) with
-the nagios-nrpe-server package installed and configured the way
-sitesummary would configure it, are monitored for full disks, software
-raid status, swap free and other checks that need to run locally on
-the machine.</p>
+<blockquote><pre>
+maintainer:~# /usr/lib/sitesummary/hardware-model-summary
+ vendor count
+ Dell Computer Corporation 1
+ PowerEdge 1750 1
+ IBM 1
+ eserver xSeries 345 -[8670M1X]- 1
+ Intel 2
+ [no-dmi-info] 3
+maintainer:~#
+</pre></blockquote>
-<p>The result is that the administrator on a school using Debian Edu
-based on Lenny will be able to check the health of his installation
-with one look at the Nagios settings, without having to spend any time
-keeping the Nagios configuration up-to-date.</p>
+<p>The quality of the report depend on the quality of the DMI tables
+provided in each machine. Here there are Intel machines without model
+information listed with Intel as vendor and no model, and virtual Xen
+machines listed as [no-dmi-info]. One can add -l as a command line
+option to list the individual machines.</p>
-<p>The only configuration one need to do to get Nagios up and running
-is to set the password used to get access via HTTP. The system
-administrator need to run "<tt>htpasswd /etc/nagios3/htpasswd.users
-nagiosadmin</tt>" to create a nagiosadmin user and set a password for
-it to be able to log into the Nagios web pages. After that,
-everything is taken care of.</p>
+<p>A larger list is
+<a href="http://narvikskolen.no/sitesummary/">available from the the
+city of Narvik</a>, which uses Skolelinux on all their shools and also
+provide the basic sitesummary report publicly. In their report there
+are ~1400 machines. I know they use both Ubuntu and Skolelinux on
+their machines, and as sitesummary is available in both distributions,
+it is trivial to get all of them to report to the same central
+collector.</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>, <a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary</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>, <a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary</a>.
</div>
<div class="entry">
<div class="title">
- <a href="http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_computer_hardware_models_used_at_site.html">Sitesummary tip: Listing computer hardware models used at site</a>
+ <a href="http://people.skolelinux.org/pere/blog/Automatic_Munin_and_Nagios_configuration.html">Automatic Munin and Nagios configuration</a>
</div>
<div class="date">
- 3rd June 2010
+ 27th January 2010
</div>
<div class="body">
- <p>When using sitesummary at a site to track machines, it is possible
-to get a list of the machine types in use thanks to the DMI
-information extracted from each machine. The script to do so is
-included in the sitesummary package, and here is example output from
-the Skolelinux build servers:</p>
+ <p>One of the new features in the next Debian/Lenny based release of
+Debian Edu/Skolelinux, which is scheduled for release in the next few
+days, is automatic configuration of the service monitoring system
+Nagios. The previous release had automatic configuration of trend
+analysis using Munin, and this Lenny based release take that a step
+further.</p>
-<blockquote><pre>
-maintainer:~# /usr/lib/sitesummary/hardware-model-summary
- vendor count
- Dell Computer Corporation 1
- PowerEdge 1750 1
- IBM 1
- eserver xSeries 345 -[8670M1X]- 1
- Intel 2
- [no-dmi-info] 3
-maintainer:~#
-</pre></blockquote>
+<p>When installing a Debian Edu Main-server, it is automatically
+configured as a Munin and Nagios server. In addition, it is
+configured to be a server for the
+<a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">SiteSummary
+system</a> I have written for use in Debian Edu. The SiteSummary
+system is inspired by a system used by the University of Oslo where I
+work. In short, the system provide a centralised collector of
+information about the computers on the network, and a client on each
+computer submitting information to this collector. This allow for
+automatic information on which packages are installed on each machine,
+which kernel the machines are using, what kind of configuration the
+packages got etc. This also allow us to automatically generate Munin
+and Nagios configuration.</p>
-<p>The quality of the report depend on the quality of the DMI tables
-provided in each machine. Here there are Intel machines without model
-information listed with Intel as vendor and mo model, and virtual Xen
-machines listed as [no-dmi-info]. One can add -l as a command line
-option to list the individual machines.</p>
+<p>All computers reporting to the sitesummary collector with the
+munin-node package installed is automatically enabled as a Munin
+client and graphs from the statistics collected from that machine show
+up automatically on http://www/munin/ on the Main-server.</p>
-<p>A larger list is
-<a href="http://narvikskolen.no/sitesummary/">available from the the
-city of Narvik</a>, which uses Skolelinux on all their shools and also
-provide the basic sitesummary report publicly. In their report there
-are ~1400 machines. I know they use both Ubuntu and Skolelinux on
-their machines, and as sitesummary is available in both distributions,
-it is trivial to get all of them to report to the same central
-collector.</p>
+<p>All non-laptop computers reporting to the sitesummary collector are
+automatically monitored for network presence (ping and any network
+services detected). In addition, all computers (also laptops) with
+the nagios-nrpe-server package installed and configured the way
+sitesummary would configure it, are monitored for full disks, software
+raid status, swap free and other checks that need to run locally on
+the machine.</p>
+
+<p>The result is that the administrator on a school using Debian Edu
+based on Lenny will be able to check the health of his installation
+with one look at the Nagios settings, without having to spend any time
+keeping the Nagios configuration up-to-date.</p>
+
+<p>The only configuration one need to do to get Nagios up and running
+is to set the password used to get access via HTTP. The system
+administrator need to run "<tt>htpasswd /etc/nagios3/htpasswd.users
+nagiosadmin</tt>" to create a nagiosadmin user and set a password for
+it to be able to log into the Nagios web pages. After that,
+everything is taken care of.</p>
</div>
<div class="tags">
- 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>.
+ 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/sitesummary">sitesummary</a>.
</div>
<h2>Archive</h2>
<ul>
+<li>2013
+<ul>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (9)</a></li>
+
+</ul></li>
+
+<li>2012
+<ul>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
+
+</ul></li>
+
<li>2011
<ul>
<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
-<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (3)</a></li>
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
+
+<li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
</ul></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (2)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (5)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (53)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (67)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (118)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (63)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (9)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (7)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (7)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (95)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (12)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (173)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (21)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (10)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (10)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (9)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (32)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (15)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (17)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (4)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (6)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (13)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (137)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (219)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (119)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (148)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (6)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (22)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (41)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (61)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (45)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (4)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (6)</a></li>
<li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (23)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (28)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
+
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (3)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (39)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (24)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (1)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (5)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (2)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (12)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (9)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (6)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (7)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (20)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (35)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (1)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
- <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (16)</a></li>
+ <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (26)</a></li>
</ul>
projects / homepage.git / blobdiff