LINUX防火墙与端口 查看firewalld状态 systemctlstatusfirewalld 开启firewalld systemctlstartfirewalld 关闭firewalld systemctlstopfirewalld 刷新firewalld firewall-cmd--reload 开放80端口 firewall-cmd--zone=public--add-port=80/tcp--permanent firewall-cmd--reload 关闭80端口 firewall-cmd--zone=public--remove-port=80/tcp--per...