Nagios Support Forum

Open a shell/ssh session, become root or use sudo to restart nagios and read the messages.

sudo systemctl restart nagios

If your OS isn't redhat based the command may be different.

Maybe try running on a host that doesn't exist and see what the error is? Try logging into the nonworking host using the uname/passwd from the file? You know it works on the one host, so it would seem to be an issue in myvmware01. Finally, have a look at check_vmware_api.pl around line 957 and a bit...

See the snmp options under the admin tab and set the status for the desired traps to the desired state.

I don't know of a way but you might look at rrdtool to see if it might help.

A few links to similar issues.
https://www.google.com/search?q=Databas ... ve&ssui=on

You'll need to post more info such as exactly what is executed when the check is run. Run it from a shell as the nagios user and copy/paste the text. Also run the check locally on the mysql server as described and pasted the result as text.

If you changed the check w/o changing the name it may have changed the format of the perfdate. In that case, it stops writing to the rrd/xml files. You may want to rename the service or delete the perfdata files for the service and see if that fixes it.

Snmptt doesn't drop traps--it processes them and decides if they're in the .conf file and if so sets the state to that defined, or if it isn't in the file, it logs the trap as unknown. Editing the .conf* files is the same as using the GUI to edit the files, just more efficient. If you want to use th...

Install compat-openssl11 with it's dependencies, then install ncpa.

Did you import services? https://support.nagios.com/forum/viewtopic.php?t=40123&p=195610 My notes (which shouldn't be trusted) say to import in the following order. commands.cfg timeperiods.cfg contacttemplates.cfg contacts.cfg contactgroups.cfg hosttemplates.cfg hosts.cfg hostgroups.cfg service...