Network Management

Additional polling engine is showing as down due to a DNS issue

This article discusses the resolution where the additional polling engine is showing as down due to a DNS issue.

First published date

10/9/2018 4:23 PM

Last published date

5/6/2020 12:03 AM

Overview

Additional polling engine is showing down due to a DNS issue. Orion server's IP address should be able to resolve its hostname.

Product section

Network Performance Monitor

Cause

This issue occurs because the additional polling engine is not able to resolve the primary polling engine name to IP.

Resolution

Fix the DNS issue.
Note: This needs to be discussed with your DNS administrator(s).
Alternatively, add a record to the local resolver (hosts file):
1. Open Notepad (or any other text editor) by right clicking and selecting Run As Administrator.
2. Open following file:
  c:\Windows\System32\drivers\etc\hosts
3. Add a record (line) similar to example below:
  192.168.123.123 SomeHostName
4. Close (save) the file.
5. Test from the command line using ping if the resolution works.
```
ping SomeHostName
```
  and
```
ping -a 192.168.123.123
```
6. Restart all Orion Services.

Disclaimer: Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment. You elect to use third party content at your own risk, and you will be solely responsible for the incorporation of the same, if any.

Disclaimer: Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment. You elect to use third-party content at your own risk, and you will be solely responsible for the incorporation of the same if any.