2520 - Creating DNS name server groups in NIOS

Scenario

You are consolidating types of name server mappings used for your internal authoritative zones. Some of the zones are mapped to members on the same Grid (hosted by the same Grid); some zones have the primaries on the Grid and send a copy to a secondary outside of the Grid; yet some other zones have the primary data hosted outside of the Grid, and some Grid members synchronize with the external primary to receive the zone data. Please create these 3 types of mappings as 3 different name server groups.

Estimate Completion Time

• 20 to 30 minutes

Credentials

Requirements

• Administrative DNS access to the Grid

Course References

• 2009: Configuring NIOS DNS Services

• 2023: Configuring NIOS DNS Zones

Lab Initiation

Access jump-desktop

Once the lab is deployed, you can access the virtual machines required to complete this lab activity. To initiate the lab, click on the jump-desktop tile and login to the Linux UI:

Username: training

Password: infoblox

Initiate lab

To initiate the lab, double-click the Launch Lab icon on the Desktop.

Choose the lab number from the list and click OK.

After clicking OK, you will see a pop-up message with a brief description of the lab task. If the description looks correct, click Yes to continue lab initiation.

Lab initiation will take a couple of minutes to finish.

Once complete, you will see another pop-up message with the login credentials and the URL for the Grid Manager’s User Interface. Note that the credentials may differ from those from prior labs.

Tasks

Task 1: Creating an authoritative name server group with all Grid members

The most common authoritative zone mappings in your organization are that all zone data reside within the same Grid. Rather than specifying this mapping logic repeatedly at each zone, you can create a name server group (NS group), and (re)assign zones to use the group. Please create an authoritative name server group called Internal NSG. In the group, set ibns1.techblue.net as the Grid Primary and ibns2.techblue.net as the Grid Secondary.

Task 2: Creating an authoritative name server group with an external secondary

The development team wants a copy of your authoritative DNS zone data. The best way to set this up is via an automatic zone transfer, so whenever the zone data changes, the development team gets an updated copy. Please create an authoritative name server group called Dev NSG. In the group, set ibns1.techblue.net as the Grid Primary, ibns2.techblue.net as the Grid Secondary, and devns.techred.net (192.168.9.9) as the External Secondary.

Task 3: Creating an authoritative name server group with an external primary

The Microsoft team manages an authoritative zone that you would like a copy of. The best way is to set it up so that whenever the zone data changes on the Microsoft name server, an updated copy is sent to the Grid members. Please create an authoritative name server group called MS NSG. In the group, set dc01.techred.net (192.168.12.13) as the External Primary, and both ibns1.techblue.net and ibns2.techblue.net as the Grid Secondary.

Solutions

Task 1 Solution: Creating an authoritative name server group with all Grid members

1. Navigate to Data Management → DNS → Name Server Groups

2. Click on the Add drop-down menu and select Authoritative

3. For Name, enter Internal NSG

4. Click the Add dropdown menu and select Grid Primary

5. In the Add Grid Primary section, click Select to display the Member Selector

6. In the Member Selector window click the entry for ibns1.techblue.net

7. The selected device (ibns1.techblue.net) appears in the Add Grid Primary section

8. Click the Add button to add ibns1.techblue.net as primary server

9. Add the Grid Secondary device to the Name Server Group by clicking Add  → Grid Secondary

10. In the section for Add Grid Secondary, click Select to open the Member Selector window

11. Click on ibns2.techblue.net

12. The device ibns2.techblue.net appears as the selected Grid Secondary

13. The Name Servers table for this group now shows ibns1 as Grid Primary and ibns2 as Grid Secondary

14. Click Save & Close

Task 2 Solution: Creating an authoritative name server group with an external secondary

1. Navigate to Data Management → DNS → Name Server Groups

2. Click on the Add drop-down menu and select Authoritative

3. For Name, enter Dev NSG

4. Click the Add dropdown menu and select Grid Primary

5. In the Add Grid Primary section, click Select to display the Member Selector

6. In the Member Selector window click the entry for ibns1.techblue.net

7. The selected device (ibns1.techblue.net) appears in the Add Grid Primary section

8. Click the Add button to add ibns1.techblue.net as primary server

9. Add the Grid Secondary device to the Name Server Group by clicking Add  → Grid Secondary

10. In the section for Add Grid Secondary, click Select to open the Member Selector window

11. Click on ibns2.techblue.net

12. The device ibns2.techblue.net appears as the selected Grid Secondary

13. Add the External Secondary device to the Name Server Group by clicking Add  → External Secondary

14. In the Add External Secondary section, provide Name devns.techred.net and for Address type in 192.168.9.9

15. Click the Add button to add devns.techred.net as External Secondary server

16. The Name Servers table for this group now shows ibns1 as Grid Primary, ibns2 as Grid Secondary and devns.techred.net as External Secondary

17. Click Save & Close

Task 3 Solution: Creating an authoritative name server group with an external primary

1. Navigate to Data Management → DNS → Name Server Groups

2. Click on the Add drop-down menu and select Authoritative

3. For Name, enter MS NSG

4. Click the Add dropdown menu and select External Primary

5. In the Add External Primary section, provide Name dc01.techred.net and for Address type in 192.168.12.13

6. Click the Add button to add dc01.techred.net as the primary server

7. Add the Grid Secondary device to the Name Server Group by clicking Add  → Grid Secondary

8. In the section for Add Grid Secondary, click Select to open the Member Selector window

9. Click on ibns1.techblue.net

10. The device ibns1.techblue.net appears as the selected Grid Secondary

11. Add the other Grid Secondary device to the Name Server Group by clicking Add  → Grid Secondary

12. In the section for Add Grid Secondary, click Select to open the Member Selector window

13. Click on ibns2.techblue.net

14. The device ibns2.techblue.net appears as the selected Grid Secondary

15. The Name Servers table for this group now shows dc01.techred.net as External Primary, ibns1 and ibns2 as Grid Secondary devices.

16. Click Save & Close