Thursday, May 3, 2007

How to Create a Reverse Lookup Zone

Below is Kb article 323445, showing how to create Reverse DNS zone and Forward DNS zone, Forward DNS zone is the traditional zone

Name to 32 Bits IP address resolution and we call records in forward lookup zone, host records. Reverse DNS zone is created in special way, it gets created against a SUBNET. The job of Subnet mask, is the define IP address into two distinct part, Network Portion and host portion.

We call records in Reverse DNS zone PTR records (pointer records), 32 Bits IP address resolves to human friendly names. The IP address is 32 bits Binary number and so does the Subnet Mask.

IP=Net ID + Host ID and the SM defines or determines what portion of an IP is belong to a Network, what portion is belong to a host. This might not seem so important at the first look, however, this mechanism does a critical role in TCP/IP network and makes network complete, and without Subnet Mask IP address is useless. Just like eating a French fries without ketchup, because without ketchup, fries won't know where to go to.

How to Create a Reverse Lookup Zone

  • Start the DNS snap-in.
  • Click the DNS Server object for your server in the left pane of the console, and then expand the server object to expand the tree.
  • Expand Reverse Lookup Zones.
  • Right-click Reverse Lookup Zones and then click New Zone. The New Zone Wizard starts. Click Next to continue.
  • Click Primary zone, and then click Next.
  • In the Network ID box, type the network ID For example, type 192.168.0, and then click Next.
  • On the Zone File page, click Next
  • Click Next.
  • Click Finish.


 

How to Create a Forward Lookup Zone

To create a new forward lookup zone:

  • Start the DNS snap-in. To do this, click Start, point to Administrative Tools, and then click DNS.
  • Click the DNS Server object for your server in the left pane of the console, and then expand the server object to expand the tree.
  • Right-click Forward Lookup Zones and then click New Zone. The New Zone Wizard starts. Click Next to continue.
  • Click Primary zone to create a master copy of the new zone. Click Next.
  • In the Name box, type the name of the zone (for example, type _tcp.example.com, and then click Next.
  • On the Zone File page, accept the default file name for the new zone file, and then click Next.
  • Click Next.
  • Click Finish.

Regards,

Oz Ozugurlu

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Peter Whiteson said...

This given information is very nice about to get information and to get call detail, people do many things but by this above technique, they can easily get an information.

Reverse Lookup