Plotting the 95th percentile using Centreon

Calculating the 95th percentile of bandwidth used by a client is a common method of billing for ISP and service providers [1]. Hence, it is also of great interest to the client to plot these values as well to keep track of their service provider fees and double check bills. Plotting the 95th percentile on Centreon … Continue reading Plotting the 95th percentile using Centreon

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Nugget Post : Changing the monitoring backend for Centreon

The makers of Centreon quite clearly state that their frontend is compatible with a number of backends, including for example their own centreon-engine, nagios and icinga. At the time of writing, most documentation tackles installing a combination of Centreon+Nagios. However, I could not find any documentation on how to install a combination of say, Centreon+Icinga. … Continue reading Nugget Post : Changing the monitoring backend for Centreon

Centreon upgrade / backup / restore

I wrote a document for work, regarding how to backup / restore centreon. The document may also prove useful to some since it highlights the differences in paths between one centreon release and another. Also the differences between paths when centreon is built from source, and when it is built from the recently provided repos … Continue reading Centreon upgrade / backup / restore

Nugget Post : Nagvis + Distributed Centreon Install

Quick note of observation to those who wish to integrate Nagvis with a distributed installation of centreon: When choosing the “database instance” in the nagvis configuration file, this should be set to the “instance name” in ndomod.cfg, which defaults to the poller name in Centreon. So for example, considering a Nagvis install with the following … Continue reading Nugget Post : Nagvis + Distributed Centreon Install

Creating a custom Nagios/Centreon passive alerter

Scenario: This is very probably a familiar problem that any sysadmin must solve: Using your monitoring setup to receive alerts from other servers. Note the highlighted "receive". This is different from the standard poll / check that come out of the box with Nagios. Say for example, you would like to receive an alert whenever … Continue reading Creating a custom Nagios/Centreon passive alerter

Troubleshooting Centreon graphs

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

Sending nagios / centreon notifications via IRC

Lately we needed to find a convenient method of notifying service desk operators of centreon notifications. Email was not a good option since operatives tended to simply delete the messages. Besides, we wantede something a bit more realtime. In the end, I decided on using IRC. I went with IRC rather than jabber due to … Continue reading Sending nagios / centreon notifications via IRC