1. Configure the firewall, open port 80 and port 3306 CentOS 7.0 uses firewall as the firewall by default, which is changed to iptables firewall here. 1. Turn off the firewall: systemctl stop firewalld.service #停止firewall systemctl disable firewalld.service #Prohibit firewall from starting 2. Install iptables firewall yum install iptables-services #installation vi /etc/sysconfig/iptables #Edit firewall configuration file # 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 #最后重启防火墙使配置生效 systemctl enable iptables.service #设置防火墙开机启动 二、关闭SELINUX vi /etc/selinux/config #SELINUX=enforcing #注释掉 #SELINUXTYPE=targeted #注释掉 SELINUX=disabled #增加 :wq! #保存退出 setenforce 0 #使配置立即生效 |
Centos7 closes firewall, installs iptables and configures it
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