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  13   <h1>
  14        <a href="../../../">Petter Reinholdtsen</a>
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  19
  20  <p>Entries from January 2010.</p>
  21
  22
  23 <div class="entry">
  24  <div class="title">
  25  <a href="../../../Automatic_Munin_and_Nagios_configuration.html">Automatic Munin and Nagios configuration</a>
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  27  <div class="date">
  28   2010-01-27 15:15
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  32
  33 <p>One of the new features in the next Debian/Lenny based release of
  34 Debian Edu/Skolelinux, which is scheduled for release in the next few
  35 days, is automatic configuration of the service monitoring system
  36 Nagios.  The previous release had automatic configuration of trend
  37 analysis using Munin, and this Lenny based release take that a step
  38 further.</p>
  39
  40 <p>When installing a Debian Edu Main-server, it is automatically
  41 configured as a Munin and Nagios server.  In addition, it is
  42 configured to be a server for the
  43 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">SiteSummary
  44 system</a> I have written for use in Debian Edu.  The SiteSummary
  45 system is inspired by a system used by the University of Oslo where I
  46 work.  In short, the system provide a centralised collector of
  47 information about the computers on the network, and a client on each
  48 computer submitting information to this collector.  This allow for
  49 automatic information on which packages are installed on each machine,
  50 which kernel the machines are using, what kind of configuration the
  51 packages got etc.  This also allow us to automatically generate Munin
  52 and Nagios configuration.</p>
  53
  54 <p>All computers reporting to the sitesummary collector with the
  55 munin-node package installed is automatically enabled as a Munin
  56 client and graphs from the statistics collected from that machine show
  57 up automatically on http://www/munin/ on the Main-server.</p>
  58
  59 <p>All non-laptop computers reporting to the sitesummary collector are
  60 automatically monitored for network presence (ping and any network
  61 services detected).  In addition, all computers (also laptops) with
  62 the nagios-nrpe-server package installed and configured the way
  63 sitesummary would configure it, are monitored for full disks, software
  64 raid status, swap free and other checks that need to run locally on
  65 the machine.</p>
  66
  67 <p>The result is that the administrator on a school using Debian Edu
  68 based on Lenny will be able to check the health of his installation
  69 with one look at the Nagios settings, without having to spend any time
  70 keeping the Nagios configuration up-to-date.</p>
  71
  72 <p>The only configuration one need to do to get Nagios up and running
  73 is to set the password used to get access via HTTP.  The system
  74 administrator need to run "<tt>htpasswd /etc/nagios3/htpasswd.users
  75 nagiosadmin</tt>" to create a nagiosadmin user and set a password for
  76 it to be able to log into the Nagios web pages.  After that,
  77 everything is taken care of.</p>
  78
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  81
  82
  83
  84   Tags: <a href="../../../tags/debian edu">debian edu</a>, <a href="../../../tags/english">english</a>, <a href="../../../tags/nuug">nuug</a>.
  85
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  96 <h2>Archive</h2>
  97 <ul>
  98
  99 <li>2010
 100 <ul>
 101
 102 <li><a href="../../../archive/2010/01/">January (1)</a></li>
 103
 104 </ul></li>
 105
 106 <li>2009
 107 <ul>
 108
 109 <li><a href="../../../archive/2009/01/">January (8)</a></li>
 110
 111 <li><a href="../../../archive/2009/02/">February (8)</a></li>
 112
 113 <li><a href="../../../archive/2009/03/">March (12)</a></li>
 114
 115 <li><a href="../../../archive/2009/04/">April (10)</a></li>
 116
 117 <li><a href="../../../archive/2009/05/">May (9)</a></li>
 118
 119 <li><a href="../../../archive/2009/06/">June (3)</a></li>
 120
 121 <li><a href="../../../archive/2009/07/">July (4)</a></li>
 122
 123 <li><a href="../../../archive/2009/08/">August (3)</a></li>
 124
 125 <li><a href="../../../archive/2009/09/">September (1)</a></li>
 126
 127 <li><a href="../../../archive/2009/10/">October (2)</a></li>
 128
 129 <li><a href="../../../archive/2009/11/">November (3)</a></li>
 130
 131 <li><a href="../../../archive/2009/12/">December (3)</a></li>
 132
 133 </ul></li>
 134
 135 <li>2008
 136 <ul>
 137
 138 <li><a href="../../../archive/2008/11/">November (5)</a></li>
 139
 140 <li><a href="../../../archive/2008/12/">December (7)</a></li>
 141
 142 </ul></li>
 143
 144 </ul>
 145
 146
 147
 148 <h2>Tags</h2>
 149 <ul>
 150
 151  <li><a href="../../../tags/3d-printer">3d-printer (11)</a></li>
 152
 153  <li><a href="../../../tags/amiga">amiga (1)</a></li>
 154
 155  <li><a href="../../../tags/aros">aros (1)</a></li>
 156
 157  <li><a href="../../../tags/debian">debian (14)</a></li>
 158
 159  <li><a href="../../../tags/debian edu">debian edu (10)</a></li>
 160
 161  <li><a href="../../../tags/english">english (18)</a></li>
 162
 163  <li><a href="../../../tags/fiksgatami">fiksgatami (1)</a></li>
 164
 165  <li><a href="../../../tags/fildeling">fildeling (5)</a></li>
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 174
 175  <li><a href="../../../tags/norsk">norsk (61)</a></li>
 176
 177  <li><a href="../../../tags/nuug">nuug (63)</a></li>
 178
 179  <li><a href="../../../tags/opphavsrett">opphavsrett (10)</a></li>
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 181  <li><a href="../../../tags/personvern">personvern (10)</a></li>
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 183  <li><a href="../../../tags/reprap">reprap (10)</a></li>
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 195  <li><a href="../../../tags/vitenskap">vitenskap (1)</a></li>
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 197  <li><a href="../../../tags/web">web (5)</a></li>
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