Insights
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Start Thruk Automatically
Monday, August 27, 2012 in Insights
Thruk uses the mod_fcgid apache module which makes Thruk start on the first request. The user then gets a “waiting” page till the fastcgi server has started. When using Thruk all the time, there is no reason to wait till someone makes the …
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Thruk 1.36 Released
Thursday, July 19, 2012 in Insights
Version 1.36 of the Thruk monitoring gui has just been released. The changelog is quite huge this time. There is a new dashboard plugin called the ‘Panorama View’ Addon. There are a lot more reports included now. And finally there is a …
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Citrus 1.2 Final
Tuesday, July 10, 2012 in Insights
It has been a while since our last final release for Citrus. Now I am proud to announce the final 1.2 release. The package ships with a huge list of new features and improvements that I would like to highlight in a few lines for you. Spring version …
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Show Git Branch in Bash Prompt
Tuesday, June 19, 2012 in Insights
When working a lot with git knowing which branch you are in is an important information. Putting the branch information in your bash prompt makes this information always visible and also shows immediatly if you are in a folder managed by git. This is …
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Running check_by_ssh over a persistent ssh-connection
Tuesday, June 12, 2012 in Insights
Monitoring Unix clients is very easy with the check_by_ssh plugin. The only prerequisite is public-key-based access and installation of some plugins on the remote side. Then, running a check is as easy as: check_by_ssh --host 10.177.3.39 --logname …
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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 …