On Sunday 04 January 2009 11:26:01 Kevin Kofler wrote: > Anne Wilson wrote: > > Is a ssh key specific to a computer, or to a user? That is, does my key > > pertain to any box on the lan, as long as I'm the user? Or is it machine > > specific - in which case I would think that every user would have the > > same key, which seems unlikely. Then again, is it a combination of user > > and computer, in which case every user needs a specific key on every box > > he uses (assuming that he may want to ssh to other boxes). > > There's 2 kinds of keys: > * host keys - those are the keys which are on the server, they're generated > once per server (unless you explicitly regenerate them) and they're what > the fingerprint you see when connecting to an SSH server the first time > corresponds to. Those are one per machine (server). > * authentication keys - those are what you use to log in instead of a > password. They're one per user and machine unless you explicitly copy the > private key to a different machine or user account (something you normally > shouldn't do, but some servers allow you to upload only one public key, so > you'll have to copy the matching private key around if you want to be able > to log in from multiple machines). > OK, thanks. That's a lot clearer. It's what I thought was correct, but I needed to be sure. Anne
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