Question

Your network consists of three sites: a main site and two branch offices. You have configured DNS for the two branch offices. These locations host their own DNS servers and are represented by the following domains:

Branch1.CorpNet.local
Branch2.CorpNet.local
While configuring the DNS servers in the Branch Office sub domains, delegations did not get created, so you are having problems resolving host names at the Branch Offices. In this lab, your job is to manually create a delegation within the CorpNet zone for each new sub domain. Delegate the domains using the following settings:

Domain Server/IP Address
Branch1.CorpNet.local BranchDC1.Branch1.CorpNet.local

Branch2.CorpNet.local BranchDC2.Branch2.CorpNet.local

When creating the delegations, the FQDN for the server will not resolve to the sub domain without the delegations in place, but the IP addresses will validate.

Answer 1

To fix the hostname resolution issue in the Branch1.CorpNet.local and Branch2.CorpNet.local subdomains, manual delegations need to be created in the CorpNet DNS zone, directing queries to the correct branch DNS servers using their IP addresses.

Step-by-step explanation:

To manually create a delegation within the CorpNet DNS zone for the Branch1.CorpNet.local and Branch2.CorpNet.local subdomains, you will need access to the DNS management console on the DNS server at the main CorpNet.local site. Delegations allow the main DNS server to direct queries for records within the subdomains to the appropriate DNS servers at each branch office.

Here are the steps to create the delegations:

1. Open the DNS management console on the main CorpNet.local server.
2. Navigate to the CorpNet.local zone.
3. Right-click on the zone and select 'New Delegation'.
4. Follow the wizard to create a new delegation, entering 'Branch1' as the delegated domain.
5. Enter the IP address for BranchDC1.Branch1.CorpNet.local when prompted for the delegated DNS server information.
6. Repeat the process for 'Branch2' using the IP address for BranchDC2.Branch2.CorpNet.local.

By completing these steps, you will have created the necessary delegations to ensure proper resolution of host names within the Branch1 and Branch2 subdomains. Note that you should use the IP addresses rather than FQDNs for the branch DNS servers, since the FQDNs will not resolve until the delegations are in place.