From: Petter Reinholdtsen <pere@hungry.com>
Date: Wed, 27 Jan 2010 14:15:41 +0000 (+0000)
Subject: New entry.
X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/commitdiff_plain/bf1e66a52e6085da1db6445c3067a18daa344889?hp=4394418cd9123491b8427d92853a74d8b6964057

New entry.
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diff --git a/blog/data/2010-01-27-sitesummary.txt b/blog/data/2010-01-27-sitesummary.txt
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+Title: Automatic Munin and Nagios configuration
+Tags: english, nuug, debian edu
+Date: 2010-01-27 15:15
+
+<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 SiteSummary system we 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>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>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>