GFI Network Server Monitor checks your network & servers for failures and fixes them automatically, before your network users notice them. Alerts can be sent by email, pager or SMS. You can reboot a machine, restart a service or run a script, batch job or executable. GFI Network Server Monitor is easy to use and competitively priced.

A freeware version of GFI Network Server Monitor is also available. This includes modules to check HTTP and ICMP/ping. Using it, administrators can check availability of HTTP and HTTPS sites and whether a particular server is up and running,

This is a FULL version that becomes a limited freeware version after 30 days, unless you enter a 60-day eval key or the purchased license key.