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Name: Paul H.
Status: Educator
Age: 40s
Location: N/A
Country: N/A
Date: May 2002


Question:
There are commands which one can use to resolve a domain name to an IP address, and vice versa. There is also a command or means to determine if a domain name is registered, and if so, to whom. Where can I find a list of such commands?



Replies:
Paul this is a great question,

To answer your question I will be making the assumption that you are using Windows NT, 2000 or XP. To find out what domain name is registered to a given IP or even series of IP's use the command NSLOOKUP followed by the domain you want to look up. Basically this is a query to your DNS server, a DNS (Domain Name System) is a central repository or database of the association of IP's to domain names. Here is the result of a NSLOOKUP on www.yahoo.com

Name: www.yahoo.akadns.net

Addresses: 64.58.76.227, 64.58.76.228, 64.58.76.229, 64.58.76.176 64.58.76.177, 64.58.76.178, 64.58.76.179, 64.58.76.222, 64.58.76.223 64.58.76.224, 64.58.76.225

Aliases: www.yahoo.com

Here is a great site that will give you a list for all the TCP/IP commandsthat Microsoft supports.

http://www.microsoft.com/technet/treeview/default.asp?url=/TechNet/prodtech nol/winxppro/proddocs/tcpip_utils.asp

Thanks for using NEWTON!
Joseph Noga
CCNA, MCSE, Network+ Certified


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