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  • centos下iptables安装

    [root@localhost ~]# yum install iptables -y
    [root@localhost ~]# yum install iptables-services

    查看安装情况

    [root@localhost ~]# rpm -qa|grep iptables
    iptables-1.4.21-24.1.el7_5.x86_64
    iptables-services-1.4.21-24.1.el7_5.x86_64
    修改配置文件

    [root@localhost ~]# vi /etc/sysconfig/iptables

    #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
    

    保存退出

    [root@localhost ~]#systemctl start iptables.service

    启动正常,安装成功。

    [root@localhost ~]# systemctl enable iptables
    [root@localhost ~]# iptables -nv -L --line-number  //查看IP规则 ,--line-number 标上序号

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  • 原文地址:https://www.cnblogs.com/fanweisheng/p/11183293.html
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