Bob, SSH(2) is part of every Linux distribution you download today. It's a protocol which offers virtually unlimited possibilities. You can for instance forward any connections through any ports to the remote connection in a secure tunnel... which makes it an easy way to tunnel your way out of a corporate firewall that only allows let's say access through port 80. You can also use SSH to tunnel connections that are normally not encrypted; for instance, let's say you run an e-mail server which also offers SSH access. You could then connet to your e-mail server through SSH, leave the connection open, and use your local e-mail client to pop your mail through that connection.
There are at least SSH solutions available for Windows. One is VShell by Vandyke the other is WinSSHD by Bitvise.
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