SSH Password-free login

Lab environment: Two virtual machines A, B

To achieve the purpose: a machine landing B machine does not need to enter the password

Operate on a machine

ssh-keygen-t [RSA|DSA]-P '///Generate id_rsa,id_rsa.pub or id_dsa,id_dsa.pub under/root/.ssh

Copy the. pub file (public key) to the B machine

SCP ~/.ssh/id_rsa.pub [Email Protected]:/root/.ssh/authorized_keys

Modify the Authorized_keys permissions on the B machine

chmod ~/.ssh/authorized_keys

Now a machine can be implemented without password login B machine, to achieve AB mutual password-free, on B to perform the same operation

SSH 192.168.121.129

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SSH Password-free login