How can I disconnect from an SSH server in Terminal?
A few months ago, I connected to an SSH server via Terminal. It asked me if I wanted to add it to a list of known hosts, and I said yes. I tried disconnecting, and I thought it worked, but then when I next opened Terminal, it said the user was "server:~ <my name>". I tried restarting, quitting Terminal, deleting the contents of the "known_hosts" file and restarting, and nothing has worked.
I started a new Time Machine backup today, and it created the folder which should have been my username, but instead named it "server". What can I do to have the Terminal show the user as "<my name>:~ user", and have Time Machine put the user folder as my username?
MacBook Pro, OS X Mavericks (10.9)