03-23-2008
The real problem is that the whois databases, where you would presumably get this information, use a plethora of different formats.
telnet whois.internic.net 43 # for some fun
For example, if you type in unix.com, you will see that whois.godaddy.com will give detailed information about this particular domain name. So you telnet whois.godaddy.com 43 and see what you get when you type unix.com there. Try it again with some other friendly domain names you like, especially outside the .com and .net domains, and weep.
domaintools.com have already solved this problem, by and large, and charge a very reasonable fee. I would simply go there, unless you have a pressing urge to reinvent a very hairy wheel (or no money and lots of time). I don't personally use their services, but those friends of mine who do seem to be very satisified.
Last edited by era; 03-23-2008 at 08:00 AM..
Reason: Pointer to Domaintools
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whois(1) General Commands Manual whois(1)
NAME
whois - Internet username directory service
SYNOPSIS
whois [-h server] name...
The whois command looks up user, host, and organization names in the Network Information Center (NIC) database.
OPTIONS
Specifies a whois server other than the default server rs.internic.net.
DESCRIPTION
The name argument can specify the following: The name of a registered user The name of a registered Internet host The name of some other
entity recognized by the whois server By default, the whois command queries the host rs.internic.net.
The operands specified to the whois command are concatenated together (separated by white-space) and presented to the whois the server.
The default action, unless directed otherwise with a special name is to do a very broad search, looking for matches to name in all types
of records and most fields (such as name, nicknames, host name, and network address) in the database. For more information as to what name
operands have special meaning, and how to guide the search, use the special name help.
EXAMPLES
To display the NIC database entry for the organization osf.org, enter: whois osf.org Open Software Foundation (OSF-DOM) 11 Cambridge Center
Cambridge, MAS 02142
Domain Name: OSF.ORG . . .
SEE ALSO
DARPA Internet Request for Comment: NICKNAME/WHOIS (RFC 812)
whois(1)