Linux install ssh

/via: https://community.hetzner.com/tutorials/securing-ssh

; /etc/ssh/sshd_config.d/local.conf

Protocol 2				# disables protocol 1
LoginGraceTime 30			# tiempo disponible para teclear usuario y contraseña
AllowTcpForwarding no                   # Disables port forwarding.
X11Forwarding no                        # Disables remote GUI view.
AllowAgentForwarding no                 # Disables the forwarding of the SSH login.
MaxAuthTries 2
MaxSessions 5
AllowUsers fidmag
ClientAliveInterval 300			# Timeout por inactividad
ClientAliveCountMax 1			# cliente ssh que no responde
PermitRootLogin no			

sudo sshd -t # test configuration
sudo systemctl restart sshd