Nagios check_overcr Plugin

    check_overcr v2.3.3.git (nagios-plugins 2.3.3)
    Copyright (c) 1999 Ethan Galstad <>
    Copyright (c) 2000-2014 Nagios Plugin Development Team

    This plugin attempts to contact the Over-CR collector daemon running on the
    remote UNIX server in order to gather the requested system information.

    check_overcr -H host [-p port] [-v variable] [-w warning] [-c critical] [-t timeout]

     -h, --help
        Print detailed help screen
     -V, --version
        Print version information
        Read options from an ini file. See
        for usage and examples.
     -H, --hostname=ADDRESS
        Host name, IP Address, or unix socket (must be an absolute path)
     -p, --port=INTEGER
        Port number (default: 2000)
     -w, --warning=INTEGER
        Threshold which will result in a warning status
     -c, --critical=INTEGER
        Threshold which will result in a critical status
     -v, --variable=STRING
        Variable to check.  Valid variables include:
        LOAD1         = 1 minute average CPU load
        LOAD5         = 5 minute average CPU load
        LOAD15        = 15 minute average CPU load
        DPU<filesys>  = percent used disk space on filesystem <filesys>
        PROC<process> = number of running processes with name <process>
        NET<port>     = number of active connections on TCP port <port>
        UPTIME        = system uptime in seconds
     -t, --timeout=INTEGER:<timeout state>
        Seconds before connection times out (default: 10)
        Optional ":<timeout state>" can be a state integer (0,1,2,3) or a state STRING
     -v, --verbose
        Show details for command-line debugging (Nagios may truncate output)

    This plugin requires that Eric Molitors' Over-CR collector daemon be
    running on the remote server.
    Over-CR can be downloaded from
    This plugin was tested with version 0.99.53 of the Over-CR collector

     For the available options, the critical threshold value should always be
     higher than the warning threshold value, EXCEPT with the uptime variable

    Send email to if you have questions regarding use
    of this software. To submit patches or suggest improvements, send email to