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  • 在新安装的Linux系统中,防火墙默认是被禁掉的,一般也没有配置过任何防火墙的策略,所有不存在/etc/sysconfig/iptables文件。

    原因:在新安装的Linux系统中,防火墙默认是被禁掉的,一般也没有配置过任何防火墙的策略,所有不存在/etc/sysconfig/iptables文件。
    
    
    
    解决办法:
    1、随便写一条iptables命令配置个防火墙规则:如:
    
    iptables -P OUTPUT ACCEPT
    
    2,进行保存
    
    service iptables save
    
    3,service iptables restart
    
    
    
    异常
    
    The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
    
    解决
    
    
    
    With RHEL 7 / CentOS 7, firewalld was introduced to manage iptables. IMHO, firewalld is more suited for workstations than for server environments.
    
    It is possible to go back to a more classic iptables setup. First, stop and mask the firewalld service:
     
    
    
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    systemctl stop firewalld  
    systemctl mask firewalld  
    
    
    Then, install the iptables-services package:
    
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    yum install iptables-services  
    
    
    
    Enable the service at boot-time:
    
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    systemctl enable iptables  
    
    
    
    Managing the service
    
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    systemctl stop iptables  
      
    systemctl start iptables  
      
    systemctl |restart iptables  
    
    
    Saving your firewall rules can be done as follows:
    
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    service iptables save  
    
    or
    
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    /usr/libexec/iptables/iptables.init save  
    
    参考文章:
    http://www.centoscn.com/CentosBug/osbug/2014/0919/3779.html
    
    http://www.cnblogs.com/love3556/p/5923392.html
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  • 原文地址:https://www.cnblogs.com/zengpeng/p/8722527.html
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