Featured Article — Windows Server Delegate subdomains in DNS
A subdomain in DNS is a portion of a domain that is delegated to another DNS zone. For example, if TechRepublic hosted a support domain, that domain might be support.techrepublic.com. Likewise, a company might use subdomains for its various divisions, such as east.company.tld, west.company.tld, and so on.
To delegate a subdomain, you must create the delegation on the server hosting the parent domain. For example, to delegate support.techrepublic.com, the server hosting the techrepublic.com zone must include a delegation for the support subdomain.
Windows 2000 Server makes it easy to delegate a subdomain, thanks to the New Delegation Wizard. To delegate a subdomain:
1. Open the DNS console, right-click the host domain, and choose New Delegation to start the New Delegation Wizard.
2. Click Next, specify the subdomain name (such as support), and click Next.
3. Click Add and add the host name of the server that will host the subdomain, click Resolve, and click OK. Repeat the process to add other servers that will also host the subdomain.
4. Click Next, then Finish to create the delegation.
At this point the subdomain is delegated but there are no records in its target zone. On the first server that will host records for the subdomain, create a new zone (such as support.techrepublic.com) and create the necessary DNS records for the zone. Repeat the process on other servers, or configure another server as a secondary for the zone. |
