SSH

SSH Setup

Look for and edit the following lines in /etc/ssh/sshd_config:

/etc/ssh/ssd_config

Port <port>
AddressFamily <any|inet|inet6>
ListenAddress <ip4-address>
ListenAddress <ip6-address>

LogLevel VERBOSE

PermitRootLogin prohibit-password

PubkeyAuthentication yes

PasswordAuthentication no
PermitEmptyPasswords no

ChallengeResponseAuthentication no

UsePAM yes
AllowUsers <space-separated-list-of-users>

AllowAgentForwarding no
AllowTcpForwarding no

Then make sure the sshd service is enabled and running:

sudo systemctl enable --now sshd