2802 - Enabling the DNS Forwarding Proxy Service

Scenario

You're tasked with enabling the DNS Forwarding Proxy (DFP) service on your organization's NIOS-X (formerly known as BloxOne Hosts) servers, oph1.techblue.net and oph2.techblue.net. You will connect these servers to the service instances DFP-OPH1 and DFP-OPH2 in the Infoblox Portal.

Estimated Completion Time

• 10 to 15 minutes

Prerequisites

• Administrative access to the Infoblox Portal

• Lab 2801: Deploying NIOS-X Servers

Tasks

• Enable DNS Forwarding Proxies (DFP) on both NIOS-X Servers.

• Verify the NIOS-X servers and DFP services are functional.

Task 1: Enabling DNS Forwarding Proxies (DFP) on both NIOS-X Servers

• In the Infoblox Portal, create two DFP Instances named DFP-OPH1 and DFP-OPH2 and connect them to the NIOS-X servers oph1.techblue.net and oph2.techblue.net.

Task 2: Verifying DNS Forwarding Proxies (DFP) Services Are Working

In testing-linux in a terminal window use the command sudo set-network-static-bloxone to set a static IP address for the VM. You might get a red error message "Failed to reload network settings: No such file or directory". If you do, please re-enter the command.

• In the lab environment, provision the VM testing-linux with a static IP address (with the command sudo set-network-static-bloxone) to reach the NIOS-X servers.

• From the VM testing-linux, perform DNS lookups using the NIOS-X servers (10.100.0.110 and 10.200.0.110) to make sure the DNS Forwarding Proxie services are working.

Solutions

Task 1 Solution: Enabling DNS Forwarding Proxies (DFP) on both NIOS-X Servers

1. Log into your lab’s VM jump-desktop.

2. While logged in to jump-desktop, use your Education Infoblox Portal Credentials to log into the Infoblox Portal.

3. Navigate to Configure → Service Deployment → Protocol Services.

4. Click Create Service and choose DNS Forwarding Proxy from the list.

   1. Enter DFP-OPH1 for the name.

   2. Click Select Server and choose oph1.techblue.net from the list

   3. Click Finish and then Save & Close.

      

5. Repeat steps 3 and 4 to create a second DFP service.

   1. Enter DFP-OPH2 for the name.

   2. select oph2.techblue.net as the server.

   3. Click Finish then Save & Close.

      

Task 2 Solution: Verifying DNS Forwarding Proxies (DFP) Services Are Working

1. Log in to the VM testing-linux in your lab environment with the credentials training / infoblox.

2. Open a terminal window and enter the command sudo set-network-static-bloxone This command sets a static IP address for the testing-linux VM so it can reach the NIOS-X servers.

   • NOTE: You might get a red error message "Failed to reload network settings: No such file or directory". If so, please re-enter the command.

     

3. Using the command dig against oph1.techblue.net (10.100.0.110) and. oph2.techblue.net (10.200.0.110), resolve the domains www.infoblox.com and www.google.com. Both domains should be resolved with a NOERROR response code. The commands are:

   • dig @10.100.0.110 www.infoblox.com.

   • dig @10.100.0.110 www.google.com.

   • dig @10.200.0.110 www.infoblox.com.

   • dig @10.200.0.110 www.google.com.