SSH is a simply a network protocol for secure services over an unsecure network. It was originally designed as a replacement for telnet, so it is most commonly used to login to a remote shell. But it can be used to encrypt any traffic between two computers.
You can connect to 20 other computers and send commands to them, yes. Tunneling is simply using SSH as a secure "tunnel" to transfer unencrypted data.
James Parker
SSH has been compromised by the heartbleed virus trojan so is completely useless.
Logan Gray
Not OP, but I wanna piggyback.
What's the difference between SFTP, and FTPS?
James Robinson
Actually, never mind. Don't answer me. I'm an idiot, just like OP.
Leo Martin
It's useless old technology. Use powershell.
Hunter Russell
Haha me 2 mate
James Parker
SFTP is a file transfer protocol built on top of SSH. It has nothing to do with FTP.
FTPS is old fashioned FTP with SSL bolted on.
Andrew Johnson
Half of all learning these days is coming up with the right question to type into google. Compare the following.