Remote System Monitor, 5-minute notifications
The ClearCenter Remote System Monitor app checks processor utilization, hard disk and memory usage in addition to monitoring ports that should normally be available outside your network (eg. Mail, Web server, VPN etc.). The service checks the status of your gateway/server on a regular interval, pro-actively notifying you of problems before they become a network-wide problem.
To learn more about this app, click here
Documentation for ClearOS 6 can be found here.
Documentation for ClearOS 7 can be found here.