Nagios Support Forum

Found the problem. I set debug mode in nagios.cfg to '2048' and noticed that nagios was looking for the check_icmp in /usr/lib/nagios/plugins (doesn't exist) instead of /usr/lib64/nagios/plugins. So i created a symbolic link for /usr/lib/nagios/plugins as a temporary work-around and now check_icmp w...

After disabling gearman in nagios.cfg and restarting nagios, the error message has changed to

I am thinking that your server is running Mod Gearman and it is setup to run that check on a system that doesn't have the plugin installed on it. Is the server running Mod Gearman and did it get updated? Yes it is running Gearman but since I not sure what this even is, it likely the problem! It is ...

Can you tell me if the following works: /usr/lib64/nagios/plugins/check_ping -H 10.30.2.29 -w 100.0,20% -c 500.0,60% -p 5 ? Yes, it works fine from the command line. [root@nagiosserver objects]# /usr/lib64/nagios/plugins/check_ping -H 10.30.2.29 -w 100.0,20% -c 500.0,60% -p 5 PING OK - Packet loss ...

Can you provide the output of "iptables -L -n" as well as the host definition? It'd be odd if there were permission problems on just a single check script. I'm thinking maybe it's not resolving the way we'd expect or firewall rules on the Nagios server may be preventing it. iptables outpu...

Also, we can't really help a ton with check_mk's GUI since that is not our product, but one more thing to look for is if you have multiple parent Core processes running: ps -ef | grep bin/nagios Sorry, I didn't realize Check_MK GUI was not part of the Nagios package! Here is the output: root@nagios...

Hi All, I've been spinning my wheels trying to fix an existing nagios and check_mk instance after a failed attempt at an update. Centos 6.6 Nagios Core 3.5.1 CheckMK v1.2.3i3 It's all back up and running EXCEPT nagios & check_mk Web interfaces both show PING status as UNREACHABLE or DOWN .... ev...