FISH: A free SSH client. [VMS]FSH -- Fast SSH remote command execution: FSH is an extension to ssh (on UNIX only) that permits sending multiple commands to the remote host through one SSH tunnel.OpenSSH: Freely available SSH1 and SSH2 implementation. Designed as part of the OpenBSD project, but portable to a number of unix-like operating systems.Psst: An open source SSH client is available for download, as well as general SSH documentation and links to other secure communications projects. [UNIX]