Creating a DNS Primary SubZone in BloxOne DDI (2575)
Scenario
The Sales department requires its own namespace in DNS. Our DNS design indicates that we are to organize the techblue.net domain by logical divisions, so we decide to add a subdomain (or subzone) for the sales department as a child zone of techblue.net, and we'll call it sales.techblue.net. This subzone should be authoritative for sales.techblue.net and the records should show that the same administrator of the parent domain is responsible for this child domain.
Estimated Completion Time
5 to 10 minutes
Prerequisites
Administrative access to the Infoblox Portal
Course References
2159: BloxOne DDI Configuring DNS Services
2153: BloxOne DDI Configuring DNS Zones
Tasks
Creating primary subzone sales.techblue.net
Validating the DNS zones and records from a client
Task 1: Creating primary subzone sales.techblue.net
Create a primary subzone sales.techblue.net under the techblue.net zone in the default DNS view. This subzone will be authoritative and will automatically generate SOA and NS records. Since the techblue.net administrator manages this subzone, use admin@techblue.net as the administrative contact. Use two DNS service instances to host this zone, Techblue DNS service 1 and Techblue DNS service 2.
Task 2: Validating the DNS subzone and records from a client
After creating the sales.techblue.net subzone and adding the necessary resource records, verify that the setup is working as expected. Use the testing-linux virtual machine to query the DNS servers and confirm that the resource records resolve correctly.
Solutions
Task 1 Solution: Creating primary subzone sales.techblue.net
Log into your lab’s jump-desktop.
Use your Education Infoblox Portal Credentials to log into the Infoblox Portal.
Navigate to Configure → Networking → DNS.
Select the Zones horizontal tab.
Click on the DNS view default.
In the default DNS view, click the zone techblue.net to open it.
Click the Create button, and from the drop-down select Zone and then Primary Zone. This launches the Create Primary Zone dialog window.
For the Name field, enter:
sales
Check that .techblue.net is selected from the suffix drop-down list
Scroll down and expand the Authoritative DNS Servers section. Select both Techblue DNS Service 1 and Techblue DNS Service 2 (move to the right).
Expand the Zone Setting Defaults tab, and then:
Scroll to the Email Address (for SOA RNAME field)
Slide the Override toggle
In the Email Address field, enter:
admin@techblue.net
Click Save & Close.
Task 2: Validating the DNS zones and records from a client
Switch to the virtual machine testing-linux and open a Terminal window.
Set a static IP address on the virtual machine with the command
sudo set-network-static-bloxone
. If prompted for a password, useinfoblox
.Query the NIOS-X DNS server for the secondary zone we just configured with the following commands:
dig @10.100.0.110 sales.techblue.net. SOA
dig @10.100.0.110 sales.techblue.net. NS
Check the dig response. It should return an Authoritative Answer (aa) with NOERROR.