passwordless ssh connection

passwordless_ssh

# step 1: on local machine
# (for first time only!)
ssh-keygen -t rsa

#copy the result exactly
cat ~/.ssh/id_rsa.pub

# step 2:on remote machine

ssh-copy-id <remote>

#NOTE:on centos you need to run this command on the remote server:
chmod 0600 /root/.ssh/authorized_keys

You can do ssh-copy-id <remote> for the step 2.

good point, will update it :)