I'm trying to get a better understanding of authorized_keys in the context of an SSH server.
So if I have a linux server and I've placed a clients public SSH key into my servers authorized_keys file, that client may now login to the server. Presumably, this is the public key from a specific user on that client (new keys are generated for each user, right?).
If multiple users exist on my serer (root, user1, user2, etc.), then which user/profile (on the server) is the client allowed to access?