Simple SSH Hardening - SSH Zugriff absichern

SSH-Konfiguration anpassen: "/etc/ssh/sshd_config"

nano /etc/ssh/sshd_config

 AuthenticationMethods publickey
 PasswordAuthentication no
 ChallengeResponseAuthentication no
 PermitRootLogin no
 PermitEmptyPasswords no

Standard-Port (22) ändern

#Port 22
Port 99999