Insights
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Arbitrary ssh-command for check_by_ssh
Tuesday, June 12, 2012 in Insights
The well-known plugin check_by_ssh is a wrapper around the ssh client program. Unfortunately the path to ssh is defined at compile-time and remains hard-coded in the check_by_ssh binary. Usually this is /usr/bin/ssh. If you want to use features which …
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Recurring Nagios Downtimes with Thruk
Tuesday, June 12, 2012 in Insights
Every now and then some of our 7x24 hosts / services need a daily or weekly maintmode for regular restarts. Normally you would have to create 2 new timeperiods because you don’t want both hosts in a cluster to be restarted at the same time. …
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How to use the new OMD init-hooks
Thursday, June 07, 2012 in Insights
One of my bigger OMD installations consists of 13 sites. The visualization layer uses the Thruk interface. This alternative web ui can read data from multiple livestatus backends and display the host and service objects in one unified view. For this …
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Monitoring CPU usage of a Linux system with check_logfiles
Saturday, June 02, 2012 in Insights
Keeping an eye on cpu usage of your servers is one of the basic things in system monitoring. For Nagios (and Shinken, of course) you’ll find plenty of plugins for this task. However, i was never happy with the way they work. Most of the plugins …
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How to install bleeding-edge Shinken in a minute with OMD
Sunday, May 20, 2012 in Insights
You probably have noticed that development of the new Nagios-compatible monitoring system Shinken progresses very fast. Every few hours there is another commit at GitHub, where Shinken’s code repository is hosted. Now if you want to try all …
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Jmx4Perl 1.05 and Jolokia 1.0.3
Sunday, April 22, 2012 in Insights
Jmx4Perl and her sister project Jolokia received some spring updates. Jolokia has now support for cross-origin resource sharing (CORS), which allows Javascript clients to access Jolokia agents from everywhere, avoiding the ‘same origin …
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OMD 0.54 is available
Wednesday, April 04, 2012 in Insights
The developer team of OMD (Open Monitoring Distribution) released the version 0.54 today. This version contains bugfixes and lots of updated packages including Shinken 1.0.1, Thruk 1.26, PNP4Nagios 0.6.17, NagVis 1.6.5 and many more. Using the OMD …
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Pentaho Kettle within a web application
Monday, March 26, 2012 in Insights
This post demonstrates how to include and deploy Pentaho Kettle as a regular Web application. There are some pitfalls you should be aware of. Introduction I recently had to integrate Pentaho Kettle into a Java web application. To be more specific a …
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Monitoring von VMWare ESX mit check_esx3: "command matrix"
Friday, March 16, 2012 in Insights
Virtualisierung spart Kosten und Ressourcen, stellt aber hohe Ansprüche an Verwaltung und Monitoring. Die schwedische Firma op5 entwickelte für ihr gleichnamiges Nagios-basierendes Produkt das Plugin check_esx3, welches ein umfassendes Monitoring von …
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Mod-Gearman 1.2.6 released
Thursday, March 15, 2012 in Insights
Version 1.2.6 of Mod-Gearman has just been released. You may now configure the worker queues by custom variables instead of host/servicegroups. queues from custom variables Sometimes you don’t want to create hostgroups to split up your checks …