Linux SSH HardeningCozyFex included in linux ssh hardening 2021-07-04 75 words One minute Contents SSH with Username and PasswordSSH with Public and Private KeyGenerate KeysCopy Public Key to the ServerCheck the Copied Public Key on the ServerAccess the ServerHardening SSH ServiceSSH with Username and Password1 ssh <hostname OR IP Address> 1 ssh <user>@<hostname OR IP Address> SSH with Public and Private KeyGenerate Keys1 ssh-keygen -t rsa Copy Public Key to the Server1 ssh-copy-id mark@node01 Check the Copied Public Key on the Server1 cat /home/mark/.ssh/authorized_keys Access the Server1 ssh node01 Hardening SSH Service1 vi /etc/ssh/sshd_config 1 2 3 4 ... PermitRootLogin no PasswordAuthentication no ... 1 systemctl restart sshd
CozyFex