环境:阿里云ECS、centos 7
一、防火墙配置
不知道为什么,云主机没有开启firewall 或iptables,记录一下配置iptables防火墙的步骤
1、检测并关闭firewall
1 2 3 4 5 | systemctl status firewalld.service #检测是否开启了firewall systemctl stop firewalld.service #关闭firewall sytsemctl disable firewalld.service #禁止firewall开机自启 |
2、检测并安装iptables
1 | yum install iptables-services |
将规则写入iptables配置文件
1 | vi /etc/sysconfig/iptables |
1 | iptables文件内容: |
1 2 3 4 5 6 7 8 9 10 11 12 | *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT |
systemctl restart iptables.service
systemctl enable iptables.service
二、关闭SELINUX
vim /etc/selinux/config
#注释以下配置
SELINUX=enforcing SELINUXTYPE=targeted #增加以下配置 SELINUX=disabled #保存退出 :wq!#使配置立即生效
setenforce 0