Troubleshooting Centreon graphs

Posted on by David Vassallo

Symptom: Centreon stopped graphing performance data completely. There are quite a large number of reasons why this would happen, in fact a quick google search will come up with some very good articles, the few which I found useful were: http://en.doc.centreon.com/Setup:Graphs#Perfdata_activation_in_Nagios http://en.doc.centreon.com/Troubleshooting:Graphs http://felipeferreira.net/?p=1019 However, alas none of the points mentioned in the above articles worked … Continue reading Troubleshooting Centreon graphs

VLAN conversion / mapping

Posted on by David Vassallo

We recently had a scenario in a network migration where a network in one location had to be physically split into two locations, but must logically remain the same. Of course, the less reconfiguration and re-addressing the better. In order to tackle the above scenario the ISP had provisioned us with a L2 link, effectively … Continue reading VLAN conversion / mapping