Nagios Support Forum

I'm just trying to add a simple keep alive monitor to a host and I'm getting an apply errror: An error occurred while attempting to apply your configuration to Nagios Core. Monitoring engine configuration files have been rolled back to their last known good checkpoint. Error: Invalid max_check_attem...

I have 32 hosts but only 1 rogue host that is stuck in "Host State: Pending" with a grey circle instead of green.

This host is fully up and running. I have no idea how to change the host status. Thank you