$whois -h whois.crsnic.net "domain google.com"

这是一个很长的答案.

.COM TLD是Thin WHOIS.当您执行WHOIS查询时,WHOIS工具首先向Verisign(主机名whois.crsnic.net)发送WHOIS查询,并从响应中提取引用.

默认情况下,当您从域example.com查询Verisign时,Whois会在几个不同的对象(包括域名,注册商名称和名称服务器)中对字符串“example.com”进行非常广泛的搜索.

您可以通过指定关键字来优化查询,如Verisign文档中所述.
http://registrar.verisign-grs.com/whois/iframe/help.html?ppath=www.verisigninc.com/products-and-services/domain-name-services/whois&

上面的命令正是我所解释的.它不是google.com,而是向Verisign发送完整的查询“domain google.com”.您必须显式传递-h标志,因为Whois会尝试猜测要从查询中查询的主机名,但它会失败,因为它无法将查询“domain google.com”识别为有效域.

这是命令的结果.

$whois -h whois.crsnic.net "domain google.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: GOOGLE.COM
   Registrar: MARKMONITOR INC.
   Whois Server: whois.markmonitor.com
   Referral URL: http://www.markmonitor.com
   Name Server: NS1.GOOGLE.COM
   Name Server: NS2.GOOGLE.COM
   Name Server: NS3.GOOGLE.COM
   Name Server: NS4.GOOGLE.COM
   Status: clientDeleteProhibited
   Status: clientTransferProhibited
   Status: clientUpdateProhibited
   Status: serverDeleteProhibited
   Status: serverTransferProhibited
   Status: serverUpdateProhibited
   Updated Date: 15-sep-2010
   Creation Date: 15-sep-1997
   Expiration Date: 14-sep-2011

>>> Last update of whois database: Wed,30 Mar 2011 08:50:16 UTC <<<

NOTICE: The expiration date displayed in this record is the date the 
registrar's sponsorship of the domain name registration in the registry is 
currently set to expire. This date does not necessarily reflect the expiration 
date of the domain name registrant's agreement with the sponsoring 
registrar.  Users may consult the sponsoring registrar's Whois database to 
view the registrar's reported date of expiration for this registration.

TERMS OF USE: You are not authorized to access or query our Whois 
database through the use of electronic processes that are high-volume and 
automated except as reasonably necessary to register domain names or 
modify existing registrations; the Data in VeriSign Global Registry 
Services' ("VeriSign") Whois database is provided by VeriSign for 
information purposes only,and to assist persons in obtaining information 
about or related to a domain name registration record. VeriSign does not 
guarantee its accuracy. By submitting a Whois query,you agree to abide 
by the following terms of use: You agree that you may use this Data only 
for lawful purposes and that under no circumstances will you use this Data 
to: (1) allow,or otherwise support the transmission of mass 
unsolicited,electronic processes 
that apply to VeriSign (or its computer systems). The compilation,dissemination or other use of this Data is expressly 
prohibited without the prior written consent of VeriSign. You agree not to 
use electronic processes that are automated and high-volume to access or 
query the Whois database except as reasonably necessary to register 
domain names or modify existing registrations. VeriSign reserves the right 
to restrict your access to the Whois database in its sole discretion to ensure 
operational stability.  VeriSign may restrict or terminate your access to the 
Whois database for failure to abide by these terms of use. VeriSign 
reserves the right to modify these terms at any time. 

The Registry database contains ONLY .COM,.EDU domains and
Registrars.