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