blog/Sitesummary_tip__Listing_MAC_address_of_all_clients.html

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