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云服务器 ECS Linux 系统下使用 dig 命令查询域名解析

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云服务器 ECS Linux 系统可以使用通常自带的 dig 命令来查询域名解析情况。本文对此进行简要说明。

 

查询域名 A 记录

命令格式：

  
  
    
   
   
  1. dig <域名>
    2.

比如，查询域名 www.aliyun.com 的解析情况：

  
  
    
   
   
  1. $ dig www.aliyun.com
    ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> www.aliyun.com
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15919
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 2, ADDITIONAL: 4
    ;; QUESTION SECTION:
    ;www.aliyun.com.                        IN      A
    ;; ANSWER SECTION:
    www.aliyun.com.         600     IN      CNAME   www-adns.aliyun.com.
    www-adns.aliyun.com.    300     IN      CNAME   www-adns.aliyun.com.gds.alibabadns.com.
    www-adns.aliyun.com.gds.alibabadns.com. 247 IN A 140.205.62.8
    ;; AUTHORITY SECTION:
    gds.alibabadns.com.     82      IN      NS      gdsns2.alibabadns.com.
    gds.alibabadns.com.     82      IN      NS      gdsns1.alibabadns.com.
    ;; ADDITIONAL SECTION:
    gdsns1.alibabadns.com.  877     IN      A       140.205.122.66
    gdsns1.alibabadns.com.  877     IN      A       198.11.138.254
    gdsns2.alibabadns.com.  877     IN      A       140.205.67.254
    gdsns2.alibabadns.com.  877     IN      A       140.205.122.88
    ;; Query time: 49 msec
    ;; SERVER: 10.242.197.247#53(10.242.197.247)
    ;; WHEN: Thu Jun  9 18:43:55 2016
    ;; MSG SIZE  rcvd: 226
    2.

查询域名解析在指定 DNS 服务器解析是否生效

命令格式：

  
  
    
   
   
  1. dig <域名> @<DNS 服务器地址>
    2.

比如，查询 www.aliyun.com 在 223.5.5.5 DNS 服务器是否解析生效：

  
  
    
   
   
  1. $ dig www.aliyun.com @223.5.5.5; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> www.aliyun.com @223.5.5.5;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29651;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0;; QUESTION SECTION:;www.aliyun.com.                        IN      A;; ANSWER SECTION:www.aliyun.com.         95      IN      CNAME   www-adns.aliyun.com.  # 查询到的解析记录www-adns.aliyun.com.    95      IN      CNAME   www-adns.aliyun.com.gds.alibabadns.com.   # 查询到的解析记录www-adns.aliyun.com.gds.alibabadns.com. 95 IN A 140.205.63.8;; Query time: 0 msec;; SERVER: 223.5.5.5#53(223.5.5.5);; WHEN: Thu Jun  9 18:44:42 2016;; MSG SIZE  rcvd: 120
    2.

查询域名的 CNAME 记录

命令格式：

  
  
    
   
   
  1. dig CNAME <域名>
    2.

比如，查询域名 www.aliyun.com 的 CNAME 记录:

  
  
    
   
   
  1. # dig CNAME www.aliyun.com; <<>> DiG 9.9.4-RedHat-9.9.4-14.el7 <<>> CNAME www.aliyun.com;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4690;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 7;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 4096;; QUESTION SECTION:;www.aliyun.com.            IN    CNAME;; ANSWER SECTION:www.aliyun.com.        120    IN    CNAME    www-intl-adns.aliyun.com.  # 查询到的 CNAME 信息;; AUTHORITY SECTION:aliyun.com.        172800    IN    NS    ns5.aliyun.com.aliyun.com.        172800    IN    NS    ns4.aliyun.com.aliyun.com.        172800    IN    NS    ns3.aliyun.com.;; ADDITIONAL SECTION:ns3.aliyun.com.        432000    IN    A    42.120.250.251ns4.aliyun.com.        432000    IN    A    110.75.20.27ns4.aliyun.com.        432000    IN    A    140.205.71.248ns4.aliyun.com.        432000    IN    A    42.156.241.248ns5.aliyun.com.        432000    IN    A    140.205.2.187ns5.aliyun.com.        432000    IN    A    198.11.138.248;; Query time: 10 msec;; SERVER: 10.202.72.118#53(10.202.72.118);; WHEN: Fri Jul 08 11:46:33 CST 2016;; MSG SIZE  rcvd: 221
    2.

查询 IP 反解记录

命令格式：

  
  
    
   
   
  1. dig -x <目标 IP 地址>
    2. 
  
  
  
  
    
   
   
  1. $ dig -x 140.205.62.8; <<>> DiG 9.9.4-RedHat-9.9.4-14.el7 <<>> -x 140.205.62.8;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38256;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 4096;; QUESTION SECTION:;8.62.205.140.in-addr.arpa.    IN    PTR;; AUTHORITY SECTION:140.in-addr.arpa.    945    IN    SOA    z.arin.net. dns-ops.arin.net. 2016031910 1800 900 691200 10800;; Query time: 3 msec;; SERVER: 10.202.72.118#53(10.202.72.118);; WHEN: Fri Jul 08 11:51:32 CST 2016;; MSG SIZE  rcvd: 108
    2.

查询域名的 mx 解析记录

 

命令格式：

  
  
    
   
   
  1. dig mx <目标域名>
    2.

?比如，查询域名 aliyun.com 的 mx 解析记录：

  
  
    
   
   
  1. $ dig mx aliyun.com; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> mx aliyun.com;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33606;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 7;; QUESTION SECTION:;aliyun.com.                    IN      MX;; ANSWER SECTION:aliyun.com.             3600    IN      MX      10 mx2.mail.aliyun.com.;; AUTHORITY SECTION:aliyun.com.             172800  IN      NS      ns4.aliyun.com.aliyun.com.             172800  IN      NS      ns3.aliyun.com.aliyun.com.             172800  IN      NS      ns5.aliyun.com.;; ADDITIONAL SECTION:mx2.mail.aliyun.com.    600     IN      A       110.75.48.150ns3.aliyun.com.         432000  IN      A       42.120.250.251ns4.aliyun.com.         432000  IN      A       110.75.20.27ns4.aliyun.com.         432000  IN      A       140.205.71.248ns4.aliyun.com.         432000  IN      A       42.156.241.248ns5.aliyun.com.         432000  IN      A       198.11.138.248ns5.aliyun.com.         432000  IN      A       140.205.2.187;; Query time: 1 msec;; SERVER: 10.242.197.247#53(10.242.197.247);; WHEN: Thu Jun  9 18:59:44 2016;; MSG SIZE  rcvd: 219
    2.

 

如果问题还未能解决，您可以到阿里云社区进行免费咨询，或联系云市场商家寻求帮助。

 

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