Permission denied (publickey).

Edit '/etc/sshd/sshd_config' to enable password authentication:

PasswordAuthentication no

Restart ssh server after that.


Slow SSH login

That's usually a delay cause by a reverse DNS resolution SSH make when connecting. To disable this option (and make the SSH login much faster, add in the file /etc/ssh/sshd_config on the remote server the following:

LookupClientHostnames no (if the server is Solaris)

or

UseDNS no (if the server is Linux)

Restart the SSH service on the remote server for modification to take effect