Automatic logon configuration on Linux OS

Automatic logon configuration on Linux OS

1. Regarding to DSA:
a) ssh-keygen -t dsa 
b) cat ~/.ssh/id_dsa.pub | ssh <username>@<remote-host> "cat - >> ~/.ssh/authorized_keys"


2. Regarding to RSA:
a) ssh-keygen -t rsa 
b) ssh-copy-id <username>@<remote-host>


3. Switching different node
NODE=<node-name>; ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o ConnectTimeout=10 ${NODE}