blog/tags/sitesummary/index.html

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   5   <title>Petter Reinholdtsen: Entries Tagged sitesummary</title>
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  11  <div class="title">
  12   <h1>
  13        <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  14
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  16
  17  </div>
  18
  19  <p>Entries tagged "sitesummary".</p>
  20
  21
  22
  23
  24 <div class="entry">
  25  <div class="title">
  26  <a href="http://people.skolelinux.org/pere/blog/Automatic_Munin_and_Nagios_configuration.html">Automatic Munin and Nagios configuration</a>
  27  </div>
  28  <div class="date">
  29   2010-01-27 15:15
  30  </div>
  31
  32  <div class="body">
  33
  34 <p>One of the new features in the next Debian/Lenny based release of
  35 Debian Edu/Skolelinux, which is scheduled for release in the next few
  36 days, is automatic configuration of the service monitoring system
  37 Nagios.  The previous release had automatic configuration of trend
  38 analysis using Munin, and this Lenny based release take that a step
  39 further.</p>
  40
  41 <p>When installing a Debian Edu Main-server, it is automatically
  42 configured as a Munin and Nagios server.  In addition, it is
  43 configured to be a server for the
  44 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">SiteSummary
  45 system</a> I have written for use in Debian Edu.  The SiteSummary
  46 system is inspired by a system used by the University of Oslo where I
  47 work.  In short, the system provide a centralised collector of
  48 information about the computers on the network, and a client on each
  49 computer submitting information to this collector.  This allow for
  50 automatic information on which packages are installed on each machine,
  51 which kernel the machines are using, what kind of configuration the
  52 packages got etc.  This also allow us to automatically generate Munin
  53 and Nagios configuration.</p>
  54
  55 <p>All computers reporting to the sitesummary collector with the
  56 munin-node package installed is automatically enabled as a Munin
  57 client and graphs from the statistics collected from that machine show
  58 up automatically on http://www/munin/ on the Main-server.</p>
  59
  60 <p>All non-laptop computers reporting to the sitesummary collector are
  61 automatically monitored for network presence (ping and any network
  62 services detected).  In addition, all computers (also laptops) with
  63 the nagios-nrpe-server package installed and configured the way
  64 sitesummary would configure it, are monitored for full disks, software
  65 raid status, swap free and other checks that need to run locally on
  66 the machine.</p>
  67
  68 <p>The result is that the administrator on a school using Debian Edu
  69 based on Lenny will be able to check the health of his installation
  70 with one look at the Nagios settings, without having to spend any time
  71 keeping the Nagios configuration up-to-date.</p>
  72
  73 <p>The only configuration one need to do to get Nagios up and running
  74 is to set the password used to get access via HTTP.  The system
  75 administrator need to run "<tt>htpasswd /etc/nagios3/htpasswd.users
  76 nagiosadmin</tt>" to create a nagiosadmin user and set a password for
  77 it to be able to log into the Nagios web pages.  After that,
  78 everything is taken care of.</p>
  79
  80  </div>
  81  <div class="tags">
  82
  83
  84
  85   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>.
  86
  87  </div>
  88 </div>
  89 <div class="padding"></div>
  90
  91 <div class="entry">
  92  <div class="title">
  93  <a href="http://people.skolelinux.org/pere/blog/Sitesummary_tip__Listing_MAC_address_of_all_clients.html">Sitesummary tip: Listing MAC address of all clients</a>
  94  </div>
  95  <div class="date">
  96   2010-05-14 21:10
  97  </div>
  98
  99  <div class="body">
 100
 101 <p>In the recent Debian Edu versions, the
 102 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">sitesummary
 103 system</a> is used to keep track of the machines in the school
 104 network.  Each machine will automatically report its status to the
 105 central server after boot and once per night.  The network setup is
 106 also reported, and using this information it is possible to get the
 107 MAC address of all network interfaces in the machines.  This is useful
 108 to update the DHCP configuration.</p>
 109
 110 <p>To give some idea how to use sitesummary, here is a one-liner to
 111 ist all MAC addresses of all machines reporting to sitesummary.  Run
 112 this on the collector host:</p>
 113
 114 <blockquote><pre>
 115 perl -MSiteSummary -e 'for_all_hosts(sub { print join(" ", get_macaddresses(shift)), "\n"; });'
 116 </pre></blockquote>
 117
 118 <p>This will list all MAC addresses assosiated with all machine, one
 119 line per machine and with space between the MAC addresses.</p>
 120
 121 <p>To allow system administrators easier job at adding static DHCP
 122 addresses for hosts, it would be possible to extend this to fetch
 123 machine information from sitesummary and update the DHCP and DNS
 124 tables in LDAP using this information.  Such tool is unfortunately not
 125 written yet.</p>
 126
 127  </div>
 128  <div class="tags">
 129
 130
 131
 132   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>.
 133
 134  </div>
 135 </div>
 136 <div class="padding"></div>
 137
 138  <p style="text-align: right;"><a href="sitesummary.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14"></a></p>
 139
 140
 141
 142
 143 <div id="sidebar">
 144
 145 <h2>Archive</h2>
 146 <ul>
 147
 148 <li>2010
 149 <ul>
 150
 151 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 152
 153 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 154
 155 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 156
 157 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 158
 159 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 160
 161 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (2)</a></li>
 162
 163 </ul></li>
 164
 165 <li>2009
 166 <ul>
 167
 168 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 169
 170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 171
 172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 173
 174 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 175
 176 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 177
 178 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 179
 180 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 181
 182 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 183
 184 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 185
 186 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 187
 188 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 189
 190 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 191
 192 </ul></li>
 193
 194 <li>2008
 195 <ul>
 196
 197 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 198
 199 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 200
 201 </ul></li>
 202
 203 </ul>
 204
 205
 206
 207 <h2>Tags</h2>
 208 <ul>
 209
 210  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (11)</a></li>
 211
 212  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 213
 214  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 215
 216  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (21)</a></li>
 217
 218  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (21)</a></li>
 219
 220  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (32)</a></li>
 221
 222  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (1)</a></li>
 223
 224  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (6)</a></li>
 225
 226  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (2)</a></li>
 227
 228  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (1)</a></li>
 229
 230  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 231
 232  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (5)</a></li>
 233
 234  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (66)</a></li>
 235
 236  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (74)</a></li>
 237
 238  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (12)</a></li>
 239
 240  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (11)</a></li>
 241
 242  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (10)</a></li>
 243
 244  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 245
 246  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (8)</a></li>
 247
 248  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (2)</a></li>
 249
 250  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (11)</a></li>
 251
 252  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (1)</a></li>
 253
 254  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (10)</a></li>
 255
 256  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (1)</a></li>
 257
 258  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (6)</a></li>
 259
 260 </ul>
 261
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