Nagios Support Forum

I'm going to create a check command that is written in C. Like those built-in ones that come with Nagios Core, I want to make it able to get the argument such as hostaddress, warning and critical threshold. I've checked check_ping and check_snmp, then I found that they all rely on an unknown variabl...

Finally, I managed to make performance data works; By referencing a custom check command - "check_eth" which is written in Perl and is available in Nagios Exchange. Thanks to mcapra again for giving me the very useful hint.

Hello mcapra, I haven't added performance data before. After some research, I still get confuse of how to properly include this in the code. I've checked https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/perfdata.html . Adding the *stroke* doesn't work. I've tried using the method ...

I've made several check commands that are written in C, they can successfully pass the value (I think they're strings) and are properly shown in Nagios web console. However, when using Histou to pass value to Grafana for creating graph, they failed. This doesn't happen when using built-in check_comm...

Histou has no problem passing the results that are returned by built-in check command. However, it fails if the result is returned by custom scripts. For example, command that is triggered by check_by_ssh. I use check_by_ssh to get the CPU usage of a remote Linux server. It returns a text or numeric...

Thanks mcapra, I'll go for C then, as I like to compile.

Just curious about what the default check commands such as "check_ping" and "check-dummy" inside "/libexec" are written in. They're clearly not written in plain text scripts but instead compiled. I'm planning to make my own check command and want to use the same languag...

Thanks for the tips, mcapra, but the new query command style for v2.0 is way too complicated to me, so I choose v1.6.4 which is stable version of Debian 10.

I follow the guide https://support.nagios.com/kb/article/nagios-core-performance-graphs-using-influxdb-nagflux-grafana-histou-802.html#Debian and now get stuck at "Validate Nagflux to InfluxDB Configuration". Running below command end up showing "code:unauthorized;message:unauthorized...

I've finally found a useful guide "Using-NCPA-For-Passive-Checks.pdf" on the web. This document has given me a great help and my problem is now solved.