CPU Idle Plugin for Nagios and Cacti

This script provides the IDLE CPU of the target machine.

Should work with many flavors of Linux and UNIX.

This script requires:

1) Change NAGCACTIUSER to match the username you use for Nagios/Cacti data collection.

2) sar installed on the remote machine (provided by sysstat in some Linux distros)

3) ssh key set up from the Nagios/Cacti server to the desired user on the remote machine

4) If the user that connects to the remote machine is different from the

one that Nagios/Cacti run under, then you need something like this in sudoers:

cacti ALL=NOPASSWD: /bin/su -  *

In Nagios command.cfg:

 define command{
     command_name    check_cpu
     command_line    $USER1$/check_cpu_cacti_nagios.sh $HOSTADDRESS$ $ARG1$ $ARG2$ nagios
}

In Nagios services.cfg

define service{
    use                    service_1_min
    host_name              remotehost1,remotehost2
    service\_description   cpu
    check_command          check_cpu!30!10
    max_check_attempts     10
    contact_groups         admins
}

Information on importing into Cacti.