how do i use nagios to check for disk space on a remote machine?

How can I use nagios to check for disk space on a remote machine?
I'm running 3RC2 on Fedora 8.  Been looking around and not getting too far.
I have hosts setup and disk checks...but I discovered that it is actually checking the local system, not the remote.  Here is the command:

define service{
        use                             local-service         ; Name of service template to use
        host_name                       myserver
        service_description             Root Partition
        check_command                   check_local_disk!20%!10%!/
        }

define service{
        use                             local-service         ; Name of service template to use
        host_name                       myserver
        service_description             boot
        check_command                   check_local_disk!20%!10%!/boot
        }

and so on for /usr /var etc...

in the commands.cfg, i have this for the command line:

# 'check_local_disk' command definition
define command{
        command_name    check_local_disk
        command_line    $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
        }

I understand it's checking the local drive...need to check space on the remote drives.
Other remote checks like cpu, http are working fine remotely.Start Free Trial