blog/Sitesummary_tip__Listing_MAC_address_of_all_clients.html

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   6     <title>Petter Reinholdtsen: Sitesummary tip: Listing MAC address of all clients</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
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  22     <div class="entry">
  23       <div class="title">Sitesummary tip: Listing MAC address of all clients</div>
  24       <div class="date">14th May 2010</div>
  25       <div class="body"><p>In the recent Debian Edu versions, the
  26 <a href="http://wiki.debian.org/DebianEdu/HowTo/SiteSummary">sitesummary
  27 system</a> is used to keep track of the machines in the school
  28 network.  Each machine will automatically report its status to the
  29 central server after boot and once per night.  The network setup is
  30 also reported, and using this information it is possible to get the
  31 MAC address of all network interfaces in the machines.  This is useful
  32 to update the DHCP configuration.</p>
  33
  34 <p>To give some idea how to use sitesummary, here is a one-liner to
  35 ist all MAC addresses of all machines reporting to sitesummary.  Run
  36 this on the collector host:</p>
  37
  38 <blockquote><pre>
  39 perl -MSiteSummary -e 'for_all_hosts(sub { print join(" ", get_macaddresses(shift)), "\n"; });'
  40 </pre></blockquote>
  41
  42 <p>This will list all MAC addresses assosiated with all machine, one
  43 line per machine and with space between the MAC addresses.</p>
  44
  45 <p>To allow system administrators easier job at adding static DHCP
  46 addresses for hosts, it would be possible to extend this to fetch
  47 machine information from sitesummary and update the DHCP and DNS
  48 tables in LDAP using this information.  Such tool is unfortunately not
  49 written yet.</p>
  50 </div>
  51
  52       <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>.</div>
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