Linux whois command
Linux whois command is used to find and display user information.
whois command will look for and display the specified user account information as it is to the Network Solutions WHOIS database to find, so the account name must be registered in the above can only be found, and the name is not case-sensitive differences.
grammar
whois [帐号名称]
Examples
Displays the user information
# whois root //查找root用户信息
Check Domain description
# whois .Lx138.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. ...省略部分内容
Domain Name Information Query
# whois Lx138.COm
The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.
Domain Name ..................... Lx138.COm
Name Server ..................... dns15.hichina.com
dns16.hichina.com
Registrant ID ................... hc937242545-cn
...省略部分内容
Query domain name information omitted Legal Notices
# whois -H Lx138.COm ...省略内容
Designated ports are queried
# whois -p 80 Lx138.COm ...省略内容