SSH Remember Passphrase

When i connect to remote server using SSH using private key, it ask for passphrase every time.

root@admin:~# ssh root@s12.serverok.in
Enter passphrase for key '/root/.ssh/id_rsa': 

root@admin:~#

Enter passphrase for key '/root/.ssh/id_rsa':

root@admin:~#

I want it only ask once, then remember it.

To do this, you need to run

eval `ssh-agent -s`
ssh-add

1 2	eval `ssh-agent -s` ssh-add

When you run “ssh-add” command, it ask for your passphrase. Now you will be able to use your SSH Key with out getting promoted for passphrase.

See ssh