1. There Host A and Host B. (Need to modify the hostname, then trust after the success of the machine name to ssh)
2. In the two machines were installed ssh service:
Execute: sudo apt-get install openssh-server installation
Execute: sudo service sshd start enabled
3. Modify A machine to perform the following in / etc / ssh / ssh_config file and save and exit
Read: StrictHostKeyChecking no
4. A machine performing: root @ 192: ~ # ssh-keygen -t rsa, with a message, press Enter. Enter total of three times. Automatically generates two files id_rsa and id_rsa.pub
5. A machine performing: B to copy the contents of id_rsa.pub machine /root/.ssh/authorized_keys file. (Manually created file)
600 gives permission: chmod 600 authorized_keys
6. A machine remote machine B without a password.
ssh B (B machines hostname)
7. Complete