Connection from one Linux machine to another via ssh
It is possible to easily log in to one Linux workstation from another with SSH, without a password:
Example:
$ ssh-keygen -C 'prenom.nom@cea.fr'
Generating public/private rsa key pair.
Enter file in which to save the key (/home/pn123456/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
[...]
$ cd ~/.ssh
$
$ cp id_rsa.pub authorized_keys
$
$ chmod g=,o= authorized_keys
$