linux防火墙操做

1、.对于centos7自带的防火墙的相关指令 

#中止firewall 

systemctl stop firewalld.service

#禁止firewall开机启动 

systemctl disable firewalld.service

#查看firewall的状态

systemctl status firewalld.service

 

2、对于centos6 iptables防火墙的相关状态 

#关闭防火墙—–service iptables stop  

#启动防火墙—–service iptables start  

# 重启防火墙—–service iptables restart  

# 查看防火墙状态–service iptables status  

# 永久关闭防火墙–chkconfig iptables off  

# 永久关闭后启用–chkconfig iptables on