Download of Didyma 2.30 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program is included in Internet & Network Tools. This tool was originally developed by Parsis. The most popular version of the program 2.3. Didyma.exe is the frequent file name to indicate the Didyma installer. We recommend checking the downloaded files with any free antivirus.
From the developer:
Didyma is a network documentation and monitoring tool. It contains a graphical interface to design and document your computer networks. The monitoring function is based upon ICMP (ping), TCP ports, SNMP objects, URL and SMTP testing.
Features:
Monitors the status of your network (Ping, TCP ports, SNMP objects, URL and SMTP).
An Alarm may be raised if an event occurs, including mail notification.
AutoDiscovery of the nodes in your network.
You may want to check out more software, such as WMS Client for Arcview Beta, Usage Agent or SigX, which might be similar to Didyma.