linux如何开启关闭防火墙

systemctl stop firewalld.service

systemctl disable firewalld.service

systemctl status firewalld

1:查看防火状态

systemctl status firewalld
service  iptables status

2:暂时关闭防火墙

systemctl stop firewalld
service  iptables stop

3:永久关闭防火墙

systemctl disable firewalld
chkconfig iptables off

4:重启防火墙

systemctl enable firewalld
service iptables restart  

5:永久关闭后重启

//暂时还没有试过
chkconfig iptables on

1.启动防火墙

systemctl start firewalld 
2.禁用防火墙

systemctl stop firewalld
3.设置开机启动

systemctl enable firewalld
4.停止并禁用开机启动

sytemctl disable firewalld
5.重启防火墙

firewall-cmd --reload
6.查看状态

systemctl status firewalld或者 firewall-cmd --state
7.查看版本

firewall-cmd --version
8.查看帮助

firewall-cmd --help
9.查看区域信息

firewall-cmd --get-active-zones
10.查看指定接口所属区域信息

firewall-cmd --get-zone-of-interface=eth0
11.拒绝所有包

firewall-cmd --panic-on
12.取消拒绝状态

firewall-cmd --panic-off
13.查看是否拒绝

firewall-cmd --query-panic

yum install firewalld

yum install firewall-config