Lesson 3 in VB.NET

Printer Data Matrix ECC200 in VB.NET Lesson 3

4-37

Active Directory conserves network bandwidth by replicating only the DNS data that has changed since the last replication, and by compressing the data before transmitting it over the network. The zone replications also use the full security capabilities of Active Directory, which are considerably more robust than those of file-based zone transfers. Because Windows Server 2003 automatically replicates the Active Directory database to other domain controllers, creating secondary zones is not a prerequisite for replication. Indeed, you cannot create an Active Directory-integrated secondary zone. However, you can create a file-based secondary zone from an Active Directory-integrated pri mary zone, and there are occasions when you might want to do this. For example, if no other domain controllers are running DNS in the Active Directory domain, there are no other domain controllers in the domain, or your other DNS servers are not running Windows Server 2003, you might have to create a standard secondary zone instead of relying on Active Directory replication. If you do this, you must manually configure the DNS servers to perform zone transfers in the normal manner.

In this practice, you implement the namespace design you created in the practice for Lesson 2 of this chapter by creating a new DNS zone on your Server01 computer and then populating that zone with subdomains and resource records corresponding to your Fabrikam, Inc., namespace.

In this procedure, you create a new DNS zone on Server01. This zone is for practice purposes only and will not interact or interfere with the existing zones. 1. Log on to Server01 as Administrator. 2. Click Start, point to All Programs, point to Administrative Tools, and then click DNS. The DNS console appears, with SERVER01 (local) listed in the console tree. 3. Expand the Forward Lookup Zones folder. 4. Click the Forward Lookup Zones folder and then, on the Action menu, click New Zone. The New Zone Wizard appears. 5. Click Next. The Zone Type page appears. 6. Leave the (default) Primary Zone. Creates A Copy Of A Zone That Can Be Updated Directly On This Server option button selected and then clear the Store The Zone In Active Directory (Available Only If DNS Server Is A Domain Controller) check box. Click Next. The Zone Name page appears. 7. Type fabrikam.com in the Zone Name text box and then click Next. The Zone File page appears.

4-38

4

8. Accept the default Create A New File With This File Name option button and the default file name supplied (fabrikam.com.dns). Click Next. The Dynamic Update page appears. 9. Accept the default Do Not Allow Dynamic Updates. Dynamic Updates Of Resource Records Are Not Accepted By This Zone. You Must Update These Records Manually option button. Click Next. The Completing The New Zone Wiz ard page appears. 10. Click Finish. A new fabrikam.com zone icon appears in the Forward Lookup Zones folder. 11. Leave the DNS console open for the next exercise.

In this procedure, you create subdomains corresponding to your namespace design in the fabrikam.com zone. The subdomains enable you to create the resource records for the computers in the subdomains. 1. In the DNS console, select the fabrikam.com zone in the console tree and, from the Action menu, select New Domain. A New DNS Domain dialog box appears. 2. Type the name you selected as the internal third-level domain name for fab rikam.com during your Lesson 2 practice and then click OK. The new subdomain appears in the detail pane.

When typing the subdomain name in the New DNS Domain dialog box, type only the third-level domain name. For example, if you chose int.fabrikam.com as the internal domain for your namespace, you would type int in the dialog box, not int.fabrikam.com. Each domain you create is added to the existing domain structure in the zone.