I have successfully set up Nagios and it has been running for a few weeks without any problems. On Friday, two hosts that were being monitored successfully all of the sudden gave a critical notice in the ‘Status Information’ column of the ‘Service Detail’ page. The odd thing is I can run the check_snmp plugin via command line and receive an OK status with valid data. These two hosts are Suse systems are being monitored via snmp and I’m stumped as to why it worked for two weeks and now it doesn’t.
Help,
Paul