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whois lookup,whois domain search

Main content page - whois lookup.Because of deregulation, each domain registrar is able to keep their own WHOIS database. In order to get accurate results for a WHOIS domain lookup, you must lookup the domain name in the shared domain registry, locate the registrar that has reserved the name, and visit and query that particular registrar’s database to obtain the correct information.
The internal structure of directories managed by InterNIC and individual registrars, as well as any applications or utilities you might use to search the databases, are created using WHOIS protocol. Why search WHOIS directories? A domain's entry provides information about the network and host with which it's associated, as well as general contact information.
com, .net and .org domain names. The WHOIS is also a tool or an application which searches the domain name information contained in WHOIS databases. It is generally used to check either the availability of a domain name or the ownership of a domain name.
A domain name registrar such as Yahoo! may also maintain its own searchable WHOIS database. WHOIS also refers to the set of rules (protocol) that defines how an application can search these directories of domain information.
What this means is that instead of having to rely on a specific IP address, a computer will be assigned one that is available from a subnet or “pool” that is assigned to the network. DHCP also extends BOOTP functionality to provide IP addresses that expire.