centos7 關閉firewall安裝iptables並配置
一、配置防火墻,開啟80端口、3306端口 CentOS 7.0默認使用的是firewall作為防火墻,這裏改為iptables防火墻。 1、關閉firewall: systemctl stop firewalld.service #停止firewall systemctl disable firewalld.service #禁止firewall開機啟動 2、安裝iptables防火墻 yum install iptables-services #安裝 vi /etc/sysconfig/iptables #編輯防火墻配置文件 # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT :wq! #保存退出 systemctl restart iptables.service #最後重啟防火墻使配置生效 systemctl enable iptables.service #設置防火墻開機啟動 二、關閉SELINUX vi /etc/selinux/config #SELINUX=enforcing #註釋掉 #SELINUXTYPE=targeted #註釋掉 SELINUX=disabled #增加 :wq! #保存退出 setenforce 0 #使配置立即生效 |
centos7 關閉firewall安裝iptables並配置