ssh: automatical login configuration

[Peter Garrett]

On Sun, 8 Oct 2006 14:21:06 +0200
Luqman <luqman_ngs at gmx.net> wrote:

> I have followed http://ubuntuguide.org/wiki/Dapper#SSH_Server for
> passphraseless login configuration. "ssh remoteuser at remotehost" asks for
> passphrase for local private key.
> 
> That is what I did:
> 
> 1) ssh-keygen -t rsa  (on remote and local pcs)
> 2) scp .ssh/id_rsa.pub remoteuser at remotehost:~/.ssh/authorized_keys
> exchanged public keys between both pcs

I think the problem here is that you seem to have *copied* the id_rsa.pub
file to the remote authorized_keys file. This won't work. You actually need
to *append* the contents of the file to the remote authorized_keys file.

The easiest way to do this is by issuing 
" ssh-copy-id -i id_rsa.pub remoteuser at remotehost "

See "man ssh-copy-id " 

The other way is to scp the id file to the remote host, then do
cat id_rsa.pub >> ~/.ssh/authorized_keys   on the remote host, but the
ssh-copy-id way is much easier and takes care of permissions at the same
time.

Peter