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How To Create A DNS Forward Lookup Zone?

What is DNS Forward Lookup Zone?


There are two DNS requests -

Forwards DNS lookup and reverse dns lookup. Both the lookups return either IP or the domain depending upon what you are inputting into the system.

In forward DNS the domain name is used to fetch the corresponding Ip address. Such type of DNS works mostly in the text form of an email or any other similar communication. The text typed in is first sent to the DNS server. The DNS server will check from its record and return the IP of the domain. If the server is unable to locate the IP, requests are forwarded to another server and continues to get forwarded until the IPs are fetched. Once the IP has been determined, communications can continue.

A reverse DNS lookup is used to retrieve domain name from an IP. Reverse and forward DNS work together and not in solitary because forward lookup is always accompanied with reverse lookup and vice versa. When you type in a web address in a browser, the browser finds it using an IP address and then links the Ip back to a domain name.

Consider the image above. The image at the top shows domain name being fed into the DNS (Domain Name System). The DNS, in turn, returns its IP address. When you establish this connection, you are said to establish DNS FORWARD DNS LOOKUP ZONE.

The image below shows domain name being retrieved after the IP was fed into the DNS server. The DNS, in this case, returned domain name to the user for subsequent operation. When you establish this connection, you are said to have created a DNS REVERSE LOOKUP ZONE.

What does a DNS Reverse & Forward Lookup Zone do?

A forward lookup zone facilitates the DNS forward Lookup by mapping the domain with its IP address. A reverse lookup zone, on the other hand, will map an IP to its domain name.

How to Create a DNS Forward Lookup Zone?

A forward lookup zone is a DNS zone in which hostname to IP address relations are stored. When a computer asks the IP address of a specific host name, the forward lookup zone is checked and the desired result is returned.

In Order to Create a New Forward Lookup Zone:

You have to start the DNS snap-in. For the same, click Start, point to Administrative Tools, and then click DNS.

Select DNS Server object for your server in the left pane of the console, and then expand the server object to expand the tree.

Then, Right-click Forward Lookup Zones and then, click New Zone. The New Zone Wizard will start. Click Next to continue.

New Zone Wizard appears, click Next to continue.

Select "Primary Zone" to create a copy of your zone and click Next to continue.

Tip: You can select the check box at the bottom of the New Zone Wizard on a Domain Controller (DC) to store the zone information in Active Directory (AD).

From the "Active Directory Zone Replication Scope" dialog box select one of the radial button options or accept the default of "To all domain controllers in the Active Directory domain Name.Com and click Next.

From the "Forward or Reverse Lookup Zone" dialog box select Forward lookup zone and click Next.

In the Zone Name box, type the name of the zone (for example, type newzone.com), and then click Next.

(NOTE: This name is typically the same as the DNS suffix of the host computers for which you want to create the zone.)

From the "Dynamic Update" dialog box select one of the radial button options or accept the default of "Allow only secure dynamic updates (recommended for Active Directory)" and click Next to complete the task.

Click Finish.


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