오길호2023-09-11T11:28:45+09:00SSHD Configuration vi /etc/ssh/sshd_config Port {port_number} service sshd restart Firewall Configuration vi /etc/sysconfig/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport {port} -j ACCEPT service iptables restart * After changing the SSH port, ensure that the firewall is configured to allow traffic on that port.