Setting Up multiple SSH key for different machine

The most valuable thing would the the keys itself..
luckily got backup elsewhere ..

the customization to add for its to select correct keys for each machine..
simply create a file at “~/.ssh/config”
with content as such..

host skynet*
       IdentityFile ~/.ssh/namran.skynet.keys
       User namran

host *.home.namran.net
       IdentityFile ~/.ssh/namran.home.keys
       User namran
       Port 1111

host *.dev.namran.net
       IdentityFile ~/.ssh/namran.dev.keys
       User namran
       Port 1222

host 192.168.199.100
       IdentityFile ~/.ssh/ae.keys
       User root

make sure the permission is correct for each keys and also config.

chmod 600 ~/.ssh/config
chmod 600 ~/.ssh/*.keys

then.. login to those machine..
would be as easy as

[namran@nb-namran]$ssh -l root ae
[root@AQ ~]# 

source :
http://www.karan.org/blog/index.php/2009/08/25/multiple-ssh-private-keys

p/s : yeah… finally written about this..