I was wondering how can I check if the time in the Nagios server (Linux red hat enterprise 4) and the time in the Client (Windows server 2003) are the same and if there’s difference between them and other things you can think.
I don’t know of any such plugin that is capable of doing that. I guess you could write one, for example that it records the time on a remote server and send it to Nagios, then when Nagios receives it it should execute a script that would compare the received time value of remote server to it’s local time and send you the notification if those are different.