what is the "in-addr.arpa" zone userd for? explain?

Reverse DNS lookup for IPv4 addresses: http://en.wikipedia.org/wiki/.arpa Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX http://blogs.sivarajan.com/ http://publications.sivarajan.com/ This posting is provided "AS IS" with no warranties, and confers no rights.

Hi Muppuri, In a Domain Name System environment, it is common for a user or an application to request a Reverse Lookup of a host name. Description of DNS Reverse Lookups http://support.microsoft.com/kb/164213 Brent Hu, TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.comPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.