CentOS 7.x via key login ssh

1. Establish the key pair [[email protected]~]$ ssh-keygen2, install the public key on the server [[email protected] ~]$ CD. Ssh[[email protected]. ssh]$ Cat Id_rsa.pub >> Authorized_keys3, in order to ensure a successful connection, ensure that the following file permissions are correct: [[email protected]. ssh]$ chmod authorized_keys[[email protected]. ssh]$ chmod ~/.ssh4, edit ssh config file, open key login function Vi/etc/ssh/sshd_configrsaauthentication yespubkeyauthentication Yes when you have completed all settings and signed in successfully by key mode, you can disable password login passwordauthentication No5, restart SSH service: [[email protected]. ssh]# systemctl Restart sshd

CentOS 7.x via key login ssh