TesterNet 2006

TesterNet network monitor, TCP monitor and Web server monitor can verify that your servers are alive and working well.

You can monitor URLs, ping any server or establish TCP connections with them. If your server cannot be reached after a number of times, TesterNet will notify you by a message popup or by e-mail. You can review the history of network events in the event list.
TesterNet has a number of utilities, you can scan for open ports in your network, view the active connections, check DNS records, sync with a time server, make a traceroute and view whois information.