SSH (Secure Shell)
- FreeSSH.org (http://www.freessh.org) - for a list of free SSH clients
- SecureCRT (http://www.vandyke.com)- supports Windows, Telnet, serial, and other protocols
- F-Secure SSH (http://www.datafellows.com)
- Nifty Telnet SSH (,a href="http://andrew2.andrew.cmu.edu/dist/niftytelnet.html">http://andrew2.andrew.cmu.edu/dist/niftytelnet.html) - for Macintosh OS
