Debian Lenny: How password-less SSH root login?

I'm trying to setup a backup script that needs a password-less SSH root login to the server that needs to be backuped.

Both servers are running Debian Lenny.
The server than needs to be backuped does not allow a direct root login (to get root you need to login with a normal account and su / root password)

Is it possible to get a password-less SSH root login (with a key file?) even when root login is disabled, and if so, how can this be done?

 

Hi Edge,

How that can be done is written here at step 3.

As root access is dangerous, please set bantime and maxretry to strict values within your fail2ban config file.
(jail.conf /local.conf)

 

Try this link

 

Thats what I tried, but like the other poster "cat /tmp/id_dsa.pub >> ~/.ssh/authorized_keys2" is giving me an error “bash: /.ssh/authorized_keys2: No such file or directory”.

 

check if .ssh directory exist

Code:

ls -la ~

if not

Code:

mkdir ~/.ssh 
chmod 700 ~/.ssh
cat /tmp/id_dsa.pub >> ~/.ssh/authorized_keys2