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  • Centos 7 使用iptables

    systemctl stop firewalld.service #停止firewall
    
    systemctl disable firewalld.service #禁止firewall开机启动
    
    #安装
    yum install iptables-services 
    

     

    vi /etc/sysconfig/iptables
    
    # sample configuration for iptables service
    # you can edit this manually or use system-config-firewall
    # please do not ask us to add additional ports/services to this default configuration
    *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 -p tcp -m state --state NEW -m tcp --dport 21 -j ACCEPT
    -A INPUT -p tcp -m state --state NEW -m tcp --dport 20 -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
    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
    转自:http://blog.csdn.net/u012486840/article/details/53161555
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  • 原文地址:https://www.cnblogs.com/smail-bao/p/7280251.html
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