How to check Nagios itself??

[Adams, Russell L.]

I said it was a cheap hack. ;]

If you have a different process monitor (ie: Daemontools, Monit, or
even CFEngine) I'd make one of them a child of init to ensure they are
always running, and use them to ensure that nagios is up when needed.

In case you use the cheap hack, don't forget, if init does catch it
respawning too fast (failing to load) , it will log it to syslog and
only disable it for 5 minutes before trying again. It doesn't stop
permanently. You do read your logs right? ;]

Secondly, if you really needed to take it down for a bit and you don't
want init respawning it, remove the executable bit on the nagios
binary. Add it back when you're done and it'll come up within five
minutes.

All that being said, the above behavior works for Linux, I'm not sure
about other flavors. (And don't manually edit inittab on AIX!)

Russell

On Thu, Mar 03, 2005 at 12:29:23AM +0100, Andreas Ericsson wrote:
> Adams, Russell L. wrote:
> >The cheap hack to make sure its always running would be to make the
> >nagios daemon a direct child of init in your inittab, with respawn
> >set.
> >
> 
> Do NOT do this. If you for some reason want to turn nagios off or 
> reconfigure it and make a mistake, you won't be able to stop it at all, 
> and it might respawn too fast so that init disables it altogether.
> 
> >Russell
> >
> >On Wed, Mar 02, 2005 at 10:42:50PM +0100, Marcel Smeets wrote:
> >
> >>I am using nagios on our servers and it is doing fine. But now I want
> >>to check if Nagios is  still working (Control the Controller). Of
> >>course it can be done by Nagios itself (but who is going to report a
> >>down state??) or another Nagios running somewhere else. But how do you
> >>check if Nagios is still running from, lets say the other side of the
> >>world by not using Nagios. Any ideas someone???
> >>
> >>Tnx
> >>
> >>Marcel Smeets
> >>
> >>
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> >
> >
> >
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> 
> -- 
> Andreas Ericsson                   andreas.ericsson at op5.se
> OP5 AB                             www.op5.se
> Lead Developer
> 
> 
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> reporting any issue. ::: Messages without supporting info will risk being 
> sent to /dev/null


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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null