It's easy enough to disable password authentication for SSH as a whole, but is there a way of allowing one user on the system the ability of logging in with a password?
The reason for this is we have several servers at rackspace and we'd like to allow rackspace access to the servers without having to set it up on all of the machines (there are lots!)
If it's simply not possible without editing the source of sshd or something that'd be good to know :)