$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file inwhich to save the key (/root/.ssh/id_rsa):/root/.ssh/id_rsa_aaa Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa_aaa. Your public key has been saved in /root/.ssh/id_rsa_aaa.pub. The key fingerprint is: 9b:92:f6:1f:d2:72:bd:72:19:45:42:5f:e4:65:33:64 root@AY140122145815620396Z The key's randomart image is: +--[ RSA 2048]----+ | .. .E=| | ..o++| | o. .| | . | | S . | | . + .. | | + = + .o | | . o +..o. | | ...o. | +-----------------+