Twitter.com的奇怪WHOIS：发生了什么事？

我已经尝试使用Google搜索，但是我无法找到答案附近的任何地方，而这是我能想象得到的唯一地方。

如果我执行whois twitter.com，那么我会得到一个非常奇怪的答复。如果是广告，那就是我见过的最奇怪的广告地方。

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

   Server Name: TWITTER.COM.ZEN.THE.BEST.WEBHOSTING.AT.WWW.FATUCH.COM
   IP Address: 209.126.190.70
   Registrar: DIRECTI INTERNET SOLUTIONS PVT. LTD. D/B/A PUBLICDOMAINREGISTRY.COM
   Whois Server: whois.PublicDomainRegistry.com
   Referral URL: http://www.PublicDomainRegistry.com

   Server Name: TWITTER.COM.GET.ONE.MILLION.DOLLARS.AT.WWW.UNIMUNDI.COM
   IP Address: 209.126.190.71
   Registrar: DIRECTI INTERNET SOLUTIONS PVT. LTD. D/B/A PUBLICDOMAINREGISTRY.COM
   Whois Server: whois.PublicDomainRegistry.com
   Referral URL: http://www.PublicDomainRegistry.com

有人知道这里发生了什么吗？为什么unimundi.com和fatuch.com在Twitter的Whois中投放广告？

domain-name-system whois

— 理查德·加兹登
source

关于Whois记录要了解的关键点是，记录存储在两个级别。我提供了一个脚本示例，说明如何针对此处的任何域自动执行此操作：serverfault.com/questions/766424/…–

— mikkokotila

这只是一些注册者采用的一种技巧，利用了Whois默认同时包含主机条目和域条目的事实。额外的匹配项来自主机（名称服务器）条目。您可以明确要求输入域条目以避免主机匹配：

$ whois domain twitter.com

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

   Domain Name: TWITTER.COM
   Registrar: NETWORK SOLUTIONS, LLC.
   Whois Server: whois.networksolutions.com
   Referral URL: http://www.networksolutions.com
   Name Server: NS1.P34.DYNECT.NET
   Name Server: NS2.P34.DYNECT.NET
   Name Server: NS3.P34.DYNECT.NET
   Name Server: NS4.P34.DYNECT.NET
   Status: clientTransferProhibited
   Updated Date: 10-mar-2011
   Creation Date: 21-jan-2000
   Expiration Date: 21-jan-2018

>>> Last update of whois database: Tue, 03 May 2011 09:47:54 UTC <<<

...等等...

编辑：顺便说一句，您还可以在查询末尾使用三个点（...）强制进行部分匹配。这会混淆linux whois客户端，因为它无法自动确定域，因此您必须明确告诉它要使用哪个whois服务器：

$ whois -h whois.verisign-grs.com "nameserver twitter.com..."

Whois Server Version 2.0

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

TWITTER.COM.ZEN.THE.BEST.WEBHOSTING.AT.WWW.FATUCH.COM
TWITTER.COM.GET.ONE.MILLION.DOLLARS.AT.WWW.UNIMUNDI.COM

To single out one record, look it up with "xxx", where xxx is one of the
of the records displayed above. If the records are the same, look them up
with "=xxx" to receive a full display for each record.

>>> Last update of whois database: Tue, 03 May 2011 10:20:07 UTC <<<

— Cakemox
source