Pidgin is an instant messaging program for Windows, Linux, BSD, and other Unixes. Pidgin supports AIM, ICQ, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, QQ, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr.
First open Pidgin. If it's the first time you're launching the program, you'll see the Welcome screen. Click the Add button
In the "Add Account " tab, select
XMPP from the Protocol: pulldown menu, enter "your_PennKey" in the Screen_name field , "upenn.edu" in the Domain field. Then click on the Advanced tab.
Click on the Advanced tab. You should see the following screen appear.
Check "Require SSL/TLS" Enter jabber.upenn.edu in the "Connect Server:" field and 5222 in the "Connect Port:" field.
You are now prompted for your PennKey Password
Information Systems and Computing, University of Pennsylvania