SSH key generation

We will be ended up by re entering the password when ever we connect to a remote machine using ssh.

Here is the way to avoid re entering the password each and every time by generating a key pair Id and moving to remote machine only once.

ssh-keygen -t dsa

Generating public/private dsa key pair.

Enter file in which to save the key (/home/localuser/.ssh/id_dsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/localuser/.ssh/id_dsa.
Your public key has been saved in /home/localuser/.ssh/id_dsa.pub.
The key fingerprint is:
93:58:20:56:72:d7:bd:14:86:9f:42:aa:82:3d:f8:e5 localuser@mybox.home.com

scp ~/.ssh/id_dsa.pub username@remotemachine:.ssh/authorized_keys


login to remote machine

chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys