3 langkah login ssh antar server tanpa password
Langkah 1: Membuat public dan privat keys menggunakan ssh-keygen pada local-host
wa2n@local-host$ [Note: Anda berada di localhost] wa2n@local-host$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/jsmith/.ssh/id_rsa):[Enter key] Enter passphrase (empty for no passphrase): [Press enter key] Enter same passphrase again: [Pess enter key] Your identification has been saved in /home/jsmith/.ssh/id_rsa. Your public key has been saved in /home/jsmith/.ssh/id_rsa.pub. The key fingerprint is: 33:b3:fe:af:95:95:18:11:31:d5:de:96:2f:f2:35:f9 jsmith@local-host
Langkah 2: Copy public key ke remote-host menggunakan ssh-copy-id
wa2n@local-host$ ssh-copy-id -i ~/.ssh/id_rsa.pub -p 555 user@remote-host wa2n@remote-host's password: Now try logging into the machine, with "ssh 'remote-host'", and check in: .ssh/authorized_keys to make sure we haven't added extra keys that you weren't expecting.
Langkah 3: Login ke remote-host tanpa menggunkan password
wa2n@local-host$ ssh remote-host Last login: Sun Nov 16 17:22:33 2008 from 192.168.1.2 [Note: SSH did not ask for password.] wa2n@remote-host$ [Note: Anda di remote-host]