Nagios Support Forum

That is indeed the whole message, but I solved the mystery. If an external command is submitted for a device it can't find then it will display the command failed error as well as the usual "host could not be found warning" you would get in 3.x. I'm not sure how I missed that yesterday but...

Hi guys, Upgraded XI 2012 -> 2014 today and it all went fairly smooth... with one little exception. We have noticed that NSCA and some SNMP traps are failing to have their events processed with the following messages generated in the log: 2014-05-29 14:48:14External command error: Command failed 201...

It's likely a configuration error, run /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg (or where ever your nagios is installed). If you can't work out what the issue is still from the output then post the errors here and we can assist you further.

It looks like check_snmp may have been dropped from the latest core nagios-plugins package (which is an... interesting... change). Unless they've just removed the documentation for some reason, I can't find any information one way or the other on the matter though. It used to be you had to make sure...

Hooray ! Well done guys, I've been really looking forward to trying this out.

You're so close, Well done! All you need to do now is tell it what you expect the address to be in Nagios: ./check_snmp -H 192.168.1.1 -o ip.21.1.7.98.166.83.50 -s 98.166.83.50 If that address changes, then it will raise an error and email you the new IP Address. The OID will contain whatever the cu...

Find out if your router supports SNMP, find out what the SNMP OID is that contains the WAN address and then use check_snmp to do a regex match on the value of that OID. As long as your router supports SNMP, it should be easy

For Nagios core there isn't really such a thing as an upgrade path, you can upgrade from any version to any version... you might experience your config not loading if certain pragmas have been removed/changed between major versions but very little has been touched in this regard for Nagios 3.x -> 4....

Are you able to post your service and command definition for this check? That would help debugging along

So when you download a new plugin there's two things you really need to do. The first is to define a new "command" which is generally done in commands.cfg and then you need to define a service that attaches it to a host (or hosts). It's worth noting that you can actually put the various de...