how to monitor remote host for swap space, mailqueue ,disk space etc

[ankush grover]

hey friends,

I am using Nagios 2.0b on Fedora Core 3.I am having problems in monitoring
remote hosts.

I want to monitor swap space,disk space , mailqueue , no.of users logged in
on the remote host through Nagios.

I have create a user "nagios" on all the remote machines and have given
rights through sudo.

nagios cluster1=ALL NOPASSWD=ALL

user nagios has the shell as "/sbin/nologin".

Well may be nagios is not able to work with sudo.Is there any way through
which I can monitor these services ?

Thanks & Regards

Ankush Grover
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