Notifications about hosts being DOWN or UNREACHABL E when they are UP

[Carroll, Jim P [Contractor]]

You may find one particular problem with this approach.
 
If the service check fails, Nagios will attempt to do the host check.  Once the host check recovers, Nagios resumes the service checks.  However, you've removed that host checking ability, so you may find that the service check stays critical, despite the fact that a manual check reveals otherwise.
 
You might want to define a special case host check, call it something like check-host-dummy and define the appropriate command in checkcommands.cfg to use the check_dummy plugin.
 
Just to reiterate, for any given host, you can only have one host check, but you can have any number of service checks.  A host check can be completely arbitrary, but by default is configured to use check-host-alive, which in checkcommands.cfg relates to the check_ping plugin.  This is something that confused me a bit at first, so you're not alone.  :)
 
Food for thought.
 
jc
-----Original Message-----
From: Gerald Wichmann [mailto:gwichman at zantaz.com]
Sent: Monday, January 06, 2003 12:59 PM
To: Nagios (E-mail)
Subject: [Nagios-users] Notifications about hosts being DOWN or UNREACHABL E when they are UP


Ok I think after some reading the trick is to remove the check_command statement in hosts.cfg for those servers that cannot be directly checked by the centralized server. I thought all checks were done/defined by the services.cfg file but apparently not. Common newbie misunderstanding I guess. Helps to read deeper into how nagios actually works. Seems to be working well now though I'll have to make sure when a service check goes red, so does that particular respective host.
 
Gerald Wichmann
Senior Systems Development Engineer
Zantaz, Inc.
925.598.3099 (w)
 


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