Centos 7防火墙iptables开放指定端口(80)和设置ftp的方法

开启80端口

@H_<a href="https://www.jb51.cc/tag/403/" target="_blank" class="keywords">403</a>_6@
 
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      firewall- 
     <span class="ace_keyword ace_command ace_dosbatch" style="color: rgb(249,38,114);">cmd</span> --zone=public --add-port=80/tcp --permanent 
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<p style="font-family: 'Fira Sans','Microsoft Yahei'; font-size: 16px; margin-top: 0px; margin-bottom: 0px; padding-top: 8px; padding-bottom: 8px; list-style: none; line-height: 30.4px; text-align: justify; color: rgb(42,42,42); word-break: break-all;">出现success表明<a href="https://www.jb51.cc/tag/tianjia/" target="_blank" class="keywords">添加</a>成功</p> 
<p style="font-family: 'Fira Sans',42); word-break: break-all;"><span style="font-size: 14px; text-indent: 0em; margin: 0px 5px; display: inline-block; padding: 0px 5px; word-break: break-all; background: rgb(237,237,237);">命令含义：</span></p> 
<p style="font-family: 'Fira Sans',42); word-break: break-all;">--zone #作用域</p> 
<p style="font-family: 'Fira Sans',42); word-break: break-all;">--add-port=80/tcp #<a href="https://www.jb51.cc/tag/tianjia/" target="_blank" class="keywords">添加</a>端口，格式为：端口/通讯协议</p> 
<p style="font-family: 'Fira Sans',42); word-break: break-all;">--permanent  #永久生效，没有此参数重启后失效</p> 
<h3 style="font-family: 'Fira Sans','Microsoft Yahei'; font-size: 18px; margin: 0px; padding: 10px 0px; list-style: none; font-weight: bolder; line-height: 30px; color: rgb(51,51);">重启防火墙</h3> 
<a target="_blank" class="btn copybtn" style="transition: all 0.3s; color: rgb(255,255,255); line-height: 1.42857; display: inline-block; margin-bottom: 0px; margin-left: 1px; padding: 5px 10px; cursor: pointer; -webkit-user-select: none; text-align: center; vertical-align: middle; white-space: nowrap; border: 1px solid transparent; border-radius: 4px; margin-top: 10px; font-family: 'Fira Sans','Microsoft Yahei'; background: rgb(244,100,95);">复制代码</a> 
<pre class="brush:bash;toolbar:false; ace_editor ace-monokai ace_dark inited" id="runcode1" style="font-family: Monaco,monospace; font-size: 14px; margin-top: 10px; margin-bottom: 0px; padding: 0px; list-style: none; position: relative; overflow: hidden; font-stretch: normal; direction: ltr; color: rgb(248,242); width: 700px; height: 26px; max-height: 600px !important; background-color: rgb(39,34);"><textarea class="ace_text-input" wrap="off" autocorrect="off" autocapitalize="off" spellcheck="false" style="font-family: inherit; font-size: 14px; margin: 0px -1px; padding-top: 0px; padding-right: 1px; padding-left: 1px; list-style: none; position: absolute; z-index: 0; width: 8px; height: 17px; opacity: 0; border: none; resize: none; outline: none; overflow: hidden; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; text-indent: -1em; left: 45px; top: 0px; white-space: pre !important; background: transparent;">@H_<a href="https://www.jb51.cc/tag/403/" target="_blank" class="keywords">403</a>_6@
 
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      systemctl restart firewalld.service 
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<h2 style="font-family:'Fira Sans',51)"> 1、运行、停止、禁用firewalld</h2> 
<p style="font-family:'Fira Sans','Microsoft Yahei'; font-size:16px; margin-top:0px; margin-bottom:0px; padding-top:8px; padding-bottom:8px; list-style:none; line-height:30.4px; text-align:justify; color:rgb(42,42); word-break:break-all"> 启动：# systemctl start firewalld</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看状态：# systemctl status firewalld或者firewall-cmd --state</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 停止：# systemctl disable firewalld</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 禁用：# systemctl stop firewalld</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> </p> 
<h2 style="font-family:'Fira Sans',51)"> 2、配置firewalld</h2> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看版本：$ firewall-cmd --version</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看帮助：$ firewall-cmd --help</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看设置：</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> <a href="https://www.jb51.cc/tag/xianshi/" target="_blank" class="keywords">显示</a>状态：$ firewall-cmd --state</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看区域信息:$ firewall-cmd --get-active-zones</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看指定接口所属区域：$ firewall-cmd --get-zone-of-interface=eth0</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 拒绝所有包：# firewall-cmd --panic-on</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 取消拒绝状态：# firewall-cmd --panic-off</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看是否拒绝：$ firewall-cmd --query-panic</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> </p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 更新防火墙规则：# firewall-cmd --reload</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --complete-reload</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 两者的区别就是第一个无需断开连接，就是firewalld特性之一动态<a href="https://www.jb51.cc/tag/tianjia/" target="_blank" class="keywords">添加</a>规则，第二个需要断开连接，类似重启服务</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 将接口<a href="https://www.jb51.cc/tag/tianjia/" target="_blank" class="keywords">添加</a>到区域，默认接口都在public</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --zone=public --add-interface=eth0</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 永久生效再<a href="https://www.jb51.cc/tag/jiashang/" target="_blank" class="keywords">加上</a>--permanent然后reload防火墙</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 设置默认接口区域</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --set-default-zone=public</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 立即生效无需重启</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 打开端口（貌似这个才最常用）</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 查看所有打开的端口：</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --zone=dmz --list-ports</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 加入一个端口到区域：</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --zone=dmz --add-port=8080/tcp</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 若要永久生效<a href="https://www.jb51.cc/tag/fangfa/" target="_blank" class="keywords">方法</a>同上</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 打开一个服务，类似于将端口可视化，服务需要在<a href="https://www.jb51.cc/tag/peizhiwenjian/" target="_blank" class="keywords">配置文件</a>中<a href="https://www.jb51.cc/tag/tianjia/" target="_blank" class="keywords">添加</a>，/etc/firewalld 目录下有services<a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a>夹，这个不详细说了，详情参考文档</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --zone=work --add-service=smtp</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> 移除服务</p> 
<p style="font-family:'Fira Sans',42); word-break:break-all"> # firewall-cmd --zone=work --remove-service=smtp</p><i class="glyphicon glyphicon-link"></i> 原文链接：https://www.f2er.com/centos/376677.html</div>
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