When connecting to a unix box, how does it know you have SSH setup on your desktop?

Posted by Blankman on Server Fault See other posts from Server Fault or by Blankman
Published on 2010-04-15T19:44:23Z Indexed on 2010/04/15 19:53 UTC
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linux

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ssh

When you use something like putty to connect to a linux box, and you setup your SSH keys etc.

When connecting, how does it tell the server that you want to connect using your SSH keys?

Is SSH running as a service on a particular port or does it simply pass your private-key and then the login service sees that and tries to connect using it?

Just looking for a fairly high level understanding (with maybe some detail if you want to...)

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