Hello Dear Community I’m having trouble with the nagios plugin “linux memory” for checking the ram usage on a debian server machine over the agent. I have installed the nagios plugin on both the master and on the server with the agent running. This is the service on the master: // Memory Usage a…

I commented them out for now. It’s running perfectly without any threshold values. I’m gonna try a few things and I’ll see if I’ll get it to work with threshold parameters. But thats not too important right now. Thanks very much for your help guys!! :smile:

Hi, that’s coming from the plugin’s execution itself. I don’t know which source you did use, nor how the check command itself looks like, nor the executed command line. Please share that :slight_smile: Cheers, Michael

I have noticed that my nagios plugins are in /usr/lib64/nagios/plugins and not in /usr/lib/nagios/plugins, probably because of CentOS… So it’s might looking in the wrong place? I’ve used the following source: wget https://github.com/osklil/nagios-misc/blob/master/check_linux_memory/check_linux_me…

The plugin is executed already, so it shouldn’t be a location problem. To me, this sounds more like a missing code, wrong indent or interpreter, or whatever else. Time is limited so please provide the requested things :slight_smile: Cheers, Michael

Plugin Source: osklil/nagios-misc/blob/master/check_linux_memory/check_linux_memory #!/usr/bin/perl -w # # check_linux_memory - Check used memory locally on Linux systems # # Copyright (C) 2011 Oskar Liljeblad # # This program is free software: you can redistribute it and/or modify # it un…

Ok, and the executed command line on the agent? Once you’ll have it, run the following on the agent: sudo -u icinga <insert command here> Cheers, Michael

I’m not sure if this is what you’re looking for, sorry… sudo -i /usr/lib/nagios/plugins/check_linux_memory: /usr/lib/nagios/plugins/check_linux_memory: Zeile 7: Syntaxfehler beim unerwarteten Wort `newline' /usr/lib/nagios/plugins/check_linux_memory: Zeile 7: `<!DOCTYPE html>'

Ah. Seems you’ve downloaded an HTTP page instead of the actual plugin :wink: Lemme guess, you’re using wget https://github.com/osklil/nagios-misc/blob/master/check_linux_memory/check_linux_memory … instead, you’ll need the raw file to download :wink: [55] wget https://raw.githubusercontent.com/…

You are absolutely correct! I’ve downloaded the HTTP page :sweat_smile: We are one step further now: Can't locate Nagios/Plugin.pm in @INC (you may need to install the Nagios::Plugin module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.24.1 /usr/local/share/perl/5.24.1 /usr/lib…

Hi, depending on your distribution, you may either find this packaged already as Perl library, or you’ll manually install Nagios::Plugin from CPAN. apt-get install libnagios-plugin-perl yum install perl-Nagios-Plugin CentOS requires the EPEL repository up front. yum -y install epel-release yum …

Side note for Ubuntu 18.04 (and maybe other new debian-based systems): On Ubuntu 18.04 you can install the package called libmonitoring-plugin-perl. Downside is you have to change Nagios::Plugin to Monitoring::Plugin in the depending scripts. For example with vim command line and %s/Nagios::Plug…

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Check command "linux memory" does not exist

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