I'm looking for some system monitoring software. In the past, I have always heard Nagios referred to in a positive way. This might be what I need. Let me define: 1) Needs to run a shell script every 10 minutes or so and check the return status. If it fails, send a page. 2) Have a web interface where system admins can see the status of the servers. 3) Have a button on the web page where system admins can run a script on the server manually. I think the 3rd requirement is the difficult one. As always, I appreciate your help and value your input. :) -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.