Ssh

From Hackepedia
Revision as of 20:08, 12 December 2005 by Hawson (talk | contribs) (Added flexlm)
Jump to navigationJump to search

SSH stands for "Secure Shell" and was first written by a Finnish computer scientist named Tatu Ylonen. Mr. Ylonen went on to found SSH Communications which continues developing the ssh program. The program uses both symmetric and assymetric cryptography in order to keep the OSI session layer secure from session hijacking and sniffing.

The OpenSSH Fork

OpenSSH was forked from a free version of SSH 1.2.12 and shipped with the OpenBSD 2.6 system. It has gained popularity among many vendors and is shipped with their products as well. Tatu Ylonen's company took OpenSSH to court but lost.


Cool SSH Tricks

Modern SSH clients and servers allow you to do some pretty nifty tricks. The most common is [X11 Port Forwarding]. You can also [forward arbitrary ports], and [compress] files when transfering them over the network (all in addition to encrypting the data). One really nifty trick is to FlexLMForwarding forward FlexLM connections.