This is Part 4 of 4 in my series of posts on some of the simple utilities one can use to test networking and DNS configurations. This post will concentrate on using the utility whois to determine the owner of a domain or IP address on the Internet.
Whois is a very simple utility to use and is included in most Linux distributions nowadays (and probably most other Unix variants too). If you’re a windows user, you’ll have to download a program to use whois, or just use one of the free web based utilities such as this one:
http://www.networksolutions.com/whois/index.jsp
The simplest way to use whois is to specify the command followed by either a domain name, or an IP address.
For example:
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