That's a question probably best asked within the Thruk communities:
https://www.thruk.org/support.html

Not 100% sure how Thruk gets logging info into MySQL. Sounds like there's a cron job you could try running by hand on some of your Nagios hosts.

There isn't really anyone on these forums responsible for the various apt/yum/etc distributions of Nagios Core. The official documentation has you compiling Nagios Core from source, and that setup is what you'll get the best support on here: https://support.nagios.com/kb/article/nagios-core-installi...

What you're referring to is performance data , and there's a variety of ways to collect and visualize Nagios performance data. In that sense, it's hard for me to say why the data is not being visualized without knowing specifically what add-ons you have configured (like nagiosgraph , nagflux , pnp4n...

Did you create a set of host and service definitions for this Windows host that has NSClient++ installed? You might consider using NCPA instead; There is official documentation for monitoring windows machines using NCPA, including the creation of various Nagios object definitions: https://assets.nag...

NRPE doesn't execute commands with a full shell -- it uses popen . In your NRPE command definition, I would suggest including a full path to the particular Python binary rather than relying on the shebang. I would also make sure the system user associated with the NRPE or xinetd daemon (which might ...

There's a set of mobile pages you can install on-top of a Nagios Core 4 installation: https://exchange.nagios.org/directory/Addons/Frontends-%28GUIs-and-CLIs%29/Mobile-Device-Interfaces/Nagios-Mobile/details It's a bit long-in-the-tooth though, is a mobile website rather than a native application, a...

If your Java process is running as root (UID 0), you'll need to also run your check_jvm plugin as root. This is a limitation of the JvmInspector jar file included with this plugin . JvmInspector doesn't need local or remote JMX network socket. It directly attaches to JVM's PerfData, so it must be st...

Here's the manpage for mail : https://linux.die.net/man/1/mail Usually the hangup is with SMTP servers that have actual security features ... There's a wide variety of CLI utilities you can use to interact in a secure fashion to send emails via a remote SMTP server: * sendEmail ( tutorial on integra...

That's a pretty CPU intensive plugin in general. You may need to run it on a dedicated machine. One way to distribute your active check work is with mod-gearman: https://exchange.nagios.org/directory/Addons/Distributed-Monitoring/Mod-Gearman/details But you could just as easily spin up a dedicated V...

1. Is there any way we can run custom event handler script on remote host using event_handler option while defining a service. while testing it looks like script runs on local Nagios core server and not on remote host Your understanding is correct; Out-of-the-box, Nagios Core runs every command (ev...