一、防火牆和端口設置 開啓防火牆：systemctl start firewalld 關閉防火牆：systemctl stop firewalld 查看防火牆狀態：systemctl status firewalld 重啓防火牆：systemctl restart firewalld 設置開機自啓：systemctl enable nginx firewalld 查看開放端口列表：f
