NETMON is a network node monitoring application with the ability to communicate with remote services using various protocols and ports to determine system availability. You can schedule checks and define what type of alerts you would like to receive if a system becomes unavailable. In addition, NETMON has built-in telnet for remote management. The professional and enterprise versions of NETMON have additional features and functionality not available in the free version. Basic NETMON is provided free of charge by CCBOOTCAMP.