Please run these commands and post the entire output:

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su - scd
/home/scd/Basis_Nagios/plugins/check_ldap -H 'xxxxxxxxxxxxxxx' -b '' --port=9007 -D 'cn=xxxx,cn=xxx' -P 'xxxxxxxxxxxxx' -3 --ssl

What do you have set in your nrpe.cfg for these?

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nrpe_user=nagios
nrpe_group=nagios

Does it ask when you do it as the root account?

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su - root
systemctl start nagios


If you're doing it with a non-root account you'll likely need to use sudo and update your /etc/sudoers accordingly:

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sudo systemctl start nagios

Please PM a copy of your /etc/sudoers.

It's almost impossible to test UDP (not an SNMP inform, but an SNMP poll or SNMP trap, they are UDP), you'd need to look at the network path logs to see if it makes it. What I generally do is query it locally on the system (if possible), if I'm not able to do that I try to query it from a device tha...

The general scenario is this: Things work great during the day, things don't work great during the night Backups and other high resource intensive tasks (such as vulnerability scanning) are scheduled at night, that's usually what it is. vMotions/VMWare backups, etc, something is impacting the networ...

You can technically run the Network Switch / Router Wizard to do this but you'll need to do the legwork and lab/test the plugins you find to see if they meet your needs. I found this: https://exchange.nagios.org/directory/Plugins/Operating-Systems/Windows/Check-Windows-Network-Traffic-2FUsage/detail...

Please see here: https://exchange.nagios.org/directory/Plugins/Email-and-Groupware/Microsoft-Exchange/Exchange-2016-Services-Check/details More than likely though you'll want to setup an agent such as NCPA/NSClient on the MS Exchange server so that you can run powershell scripts to monitor the thing...

Please let us know the exact host/service in question AND send us the resulting /tmp/NAGIOSFILES.zip file from this command: zip -r /tmp/NAGIOSFILES.zip /path/to/your/nagios/etc/directory Generally would be this: zip -r /tmp/NAGIOSFILES.zip /usr/local/nagios/etc But you'll need to tailor to your sys...

The assumption is that the firewall rules/ACLS/routes are not in place? Is it in a different datacenter? Different subnet? Did you re-IP? Please have your firewall/security/network admins investigate the network paths, the firewalls, AND any IPS/IDS devices you have in your network. Run this from wo...

Send the FULL output of this one:

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./check_vmware_api.pl -H serveresxi -u 'nagiosusr' -p 'password' -l cpu -vvv --trace=4

We do not have ppc hardware here to build against, you will need to compile from source or use an alternative agent such as NRPE that someone else has built. https://github.com/NagiosEnterprises/ncpa Or you can use check_by_ssh: https://assets.nagios.com/downloads/nagiosxi/docs/Monitoring_Hosts_Usin...