You can connect to Pegasus with any telnet program
that allows you to connect to a specific port (4242) or with a more
sophisticated MU* client. The address is:
The Java client is down for now.
If you are using the Chrome browser, you can connect with the ChroMUD Client
MUD Clients and Servers FAQ
at MUDConnector.org lists clients for a number of platforms. Most of
the folks on Peg use TinyFugue