check_usolved_linux_realmemory – Check the real memory usage

Project Notes

You can download the latest version and see the full documentation on GitHub.

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INSTALLATION:

Just copy the file check_usolved_linux_realmemory.php into your Nagios plugin directory. For example into the path /usr/local/nagios/libexec/

Give check_usolved_linux_realmemory.php the permission for execution for the nagios user. If you have at least PHP 5 this plugin should run out-of-the-box.

Make sure to have the PHP SNMP module installed and enabled in your php.ini.

> apt-get install php5-snmp (Ubuntu, Debian, ...)
or
> yum install php-snmp (RedHat, CentOS, ...)

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USAGE:

If you are in the Nagios plugin directory execute this command:

./check_usolved_linux_realmemory.php -H localhost -C public -w 90 -c 95
This should output something like this:

OK - 18.8% Memory used (1119 MB of 5962 MB), 0% Swap used (0 MB of 7807 MB)
Here are all arguments that can be used with this plugin:

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ARGUMENTS:
-H (host address)
Give the host address with the IP address or FQDN

-C (snmp community)
Give the SNMP Community String

-w (warn)
Warning treshold in percent

-c (crit)
Critical treshold in percent

[-V (snmp version)]
Optional: SNMP version 1 or 2c are supported, if argument not given version 1 is used by default

[-P (perfdata)]
Optional: Give 'yes' as argument if you wish performace data output

[-S (swap)]
Optional: Give 'no' as argument if you don't wish to return critical if swap is being used