Centos7操作系统关闭防火墙
1、开启防火墙:
systemctl start firewalld
2、重启防火墙:
firewall-cmd --state
3、关闭防火墙:
systemctl stop firewalld
4、关闭防火墙开机启动:
systemctl disable firewalld
5、查看防火墙状态:
systemctl list-unit-files|grep firewalld
添加规则
firewall-cmd --zone=public --add-port=22022/tcp --permanent
Centos6操作系统关闭防火墙
1、查看防火前状态:
/etc/init.d/iptables status
2、开启防火墙:
/etc/init.d/iptables start
3、关闭防火墙:
/etc/init.d/iptables stop
4、设置防火墙开机不起动:
chkconfig iptables off
添加规则
iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 22022 -j ACCEPT