I’m currently setting up some new clusters under RedHat and each cluster is getting it’s own Nagios instance, trying to use the web based management interface however threw and error.

I’ve seen this error before on Ubuntu and was getting it again under RedHat. Of course I revisited my Ubuntu solution and realised that it didn’t help at all, due to using dpkg overrides, also the situation was very different!

<br /> root@nagios:/var/log/nagios/rw# ls -al<br /> total 8<br /> drwxrwxr-x 2 nagios apache 4096 Oct 30 13:37 .<br /> drwxrwxr-x 5 nagios apache 4096 Oct 30 13:40 ..<br />

I’ve been doing a lot of Nagios deployments recently, and this error always bites me, on all Ubuntu versions, including Hardy and Intrepid (haven’t quite bit the bullet to try the Jaunty beta yet 🙂 )

<br /> Error: Could not stat() command file '/var/lib/nagios3/rw/nagios.cmd'!

The external command file may be missing, Nagios may not be running, and/or Nagios may not be checking external commands.

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