I just setup up all configs in Nagios, tested it with one server and all works. Now I'm starting to bring the rest of the servers down to Nagios for monitoring purposes. After doing all of the configs mimicing what I've done with the very first server, which worked, I am now getting this error email alerts:
***** Nagios *****
Notification Type: PROBLEM
State: CRITICAL for 0d 0h 4m 18s
Can anyone please advise?