SSH

SSH is a network security package which provides a way to make a connection across a network with a high degree of resistance to security attacks.

Like other network security packages, it provides a replacement for the rsh program which runs a command on a remote system. Running other applications, such as CVS, rdist, or rcp, on top of the SSH version of rsh is one way to use SSH. Unlike other network security packages, one is not expected to modify applications to run with SSH. If running on top of the SSH version of rsh is not suitable, you can use a feature called Port Forwarding by which an application can connect to what appears to be a local machine but in fact have SSH redirect the connection.

Where to Get SSH:

• The SSH web site concerns the original SSH; note that it is not freely redistributable software. Some versions may have some legal problems. There are various ports which, of course, are not freely redistributable either.

More Information:

• The Fresh Free FiSSH page is a good source of information concerning the SSH protocol, patents which may affect SSH, various implementations of SSH, etc. They are working on their own implementation of the SSH protocol.
• Psst is a project to produce a freely redistributable implementation of SSH. They seem to have made good progress; see the implementations from Niels Moeller and Cédric Gourio on that page (the page also links to some implementations which are not freely redistributable).
• Joey Hess has a page on Anonymous CVS access via ssh.

Mailing Lists and Newsgroups:

• The comp.security.ssh newsgroup is for discussing SSH.