Verifying services are running in NIOS (1500)

Scenario

You are a NIOS Grid operator responsible for monitoring service health. Users report that some clients cannot obtain DHCP leases or resolve hostnames that should be served by Grid member ibns2.techblue.net.

Estimate Completion Time

• 10 to 15 minutes

Credentials

Requirements

• Read-only access to Grid

Learning Content

• Using the NIOS Grid Manager Interface

• NIOS DHCP Service Overview

• NIOS DNS Service Overview

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: Verifying service status in GM

Verify DNS and DHCP service status for ibns2.techblue.net in Grid Manager.

Task 2: Verifying service status in syslog

Verify recent DNS and DHCP activity for ibns2.techblue.net using syslog..

Solutions

Task 1 Solution: Verifying DNS and DHCP service status in Grid Manager

In this task, you confirm from the Grid Manager interface that both DNS and DHCP services on ibns2.techblue.net report a healthy Running status.

1. Login to NIOS GM web interface

2. Navigate to Grid → Grid Manager → Services
   

   

3. Verify DNS and DHCP services are running for ibns2.techblue.net
   

   

   
   

Alternatively, you may find the same information in the web interface this way, one service at a time:

1. Login to NIOS GM web interface

2. Navigate to Data Management → DNS → Members
   

   

3. Confirm that ibns2.techblue.net shows Running for DNS

4. Navigate to Data Management → DHCP → Members
   

   

5. Confirm that ibns2.techblue.net shows Running for DHCP

Task 2 Solution: Verifying service status in syslog

Even if the services show Running, you should confirm that they are actively processing requests. In this task, you use syslog filters to verify recent DNS and DHCP log messages from ibns2.techblue.net.

1. Login to NIOS GM web interface

2. Navigate to Administration → Logs → Syslog

3. Select ibns2.techblue.net from the drop-down menu near the top of the screen
   

   

4. Click Show Filter
   

   

5. Apply filter criteria Server equals DNS
   

   

6. Confirm that you see recent DNS log messages from ibns2.techblue.net.

7. In the same filter, change to Server equals DHCP and click Apply again.
   

   

8. Confirm that you see recent DHCP log messages from ibns2.techblue.net.