http://www.freebsdmadeeasy.com/tutorials/web-server/monitoring-with-munin.php http://munin-monitoring.org/wiki/Using_SNMP_plugins
http://serverfault.com/questions/189014/how-to-reset-munin-graphs
http://www.arnebrodowski.de/blog/improving-munin-snmp-performance.html http://www.lamertz.net/2009/09/09/munin-plugins-sind-easy