Dropbear SSH Server and Client
- A relatively small SSH 2 server and client which runs on a variety of POSIX-based platforms. It is particularly useful for embedded-type Linux (or other Unix) systems, such as wireless routers.
OpenSSH
- A free (as in freedom) version of the SSH protocol suite of network connectivity tools which encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks. Also available in Dutch, French, German, Hungarian, and Japanese. Latest stable release is 5.9, 2011-09-06.
OpenSSH FAQ
- A comprehensive FAQ that covers all aspects of the SSH protocol suite of network connectivity tools. Also available in Dutch, French, German, Hungarian, and Japanese. (2005)