DNS 解析DNSPod CNAME 记录-操作指南-文档中心_小百科

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        操作场景
       
       如果需要将域名指向另一个域名，再由另一个域名提供 IP 地址，就需要添加 CNAME 记录，最常用到 CNAME 的场景包括做 CDN、做企业邮箱。本文档指导您如何添加 CNAME 记录。
      
        操作步骤
       
     1.
     
        登录
       
           腾讯云 DNS 解析控制台
          
        。
       
     2.
     
        在 “域名解析列表” 中，选择需要进行 CNAME 记录转发的域名，单击操作栏的
       
         解析
        
        ，进入该域名的
       
         记录管理
        
        页面。如下图所示：n
       
          ﻿
         
     3.
     
        单击
       
         添加记录
        
        ，填写以下记录信息。如下图所示：n
       
          ﻿
         
         主机记录：填写子域名。例如，添加
        
          www.123.com
         
         的解析，您在 “主机记录” 处选择 “www” 即可。如果只是想添加
        
          123.com
         
         的解析，您在 “主机记录” 处选择 “@” 即可。“@” 的 CNAME 会影响到 MX 记录的正常解析，添加时请您慎重考虑。
        
         记录类型：选择 “CNAME”。
        
         线路类型：选择 “默认” 类型，否则会导致部分用户无法解析。n例如，您需要将联通用户指向
        
          2.com
         
         ，所有非联通用户都指向
        
          1.com
         
         。您可以通过添加线路类型为默认、记录值为
        
          1.com
         
         和线路类型为联通、记录值为
        
          2.com
         
         的两条 CNAME 记录来实现。
        
         记录值：CNAME 指向的域名，只可以填写域名。
        
         MX 优先级：不需要填写。
        
         TTL：为缓存时间，数值越小，修改记录各地生效时间越快，默认为600秒。
        
     4.
     
        单击
       
         保存
        
        ，完成添加。

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