Centos防火墙设置命令
yum install firewalld service firewalld start service firewalld status service firewalld stop/disable yum list | grep firewall ps -ef | grep firewall firewall-cmd --version firewall-cmd --help firewall-cmd --state firewall-cmd --get-zones firewall-cmd --get-default-zone firewall-cmd --list-all-zones firewall-cmd --list-ports firewall-cmd --query-service=ssh firewall-cmd --remove-service=ssh firewall-cmd --add-service=ssh firewall-cmd --list-services firewall-cmd --query-port=22/tcp firewall-cmd --add-port=22/tcp firewall-cmd --remove-port=22/tcp