Nagios XI - Apply Configuration Fails - Backend login to the Core Configuration failed
Apply Configuration fails with the following error:
Backend login to the Core Config Manager failed.
This problem can be caused by the Nagios XI server being unable to resolve "localhost".
Diagnosing The Problem
Open an SSH session to your Nagios XI server and execute the following commands:
You receive the following output:
You can see in the last three lines that the wget command is complaining that it cannot resolve localhost.
If you execute the following command you can see the contents of the /etc/hosts file:
Here is the output:
127.0.0.1 localhost.localdomain localhost.localdomain localhost4 localhost4.localdomain4 xi-c6x-x64
If you look at the output you can see that there are no "localhost" entries, there are similar entries but not one for "localhost".
Resolving The Problem
Edit your /etc/hosts file and make sure there are localhost entries. For example:
127.0.0.1 localhost.localdomain localhost.localdomain localhost4 localhost4.localdomain4 localhost xi-c6x-x64
After making these changes try and "Apply Configuration" from Core Configuration Manager and your problem should be resolved.
For any support related questions please visit the Nagios Support Forums at:
|Posted by: tlea - Tue, Aug 2, 2016 at 8:26 PM. This article has been viewed 11546 times.|
|Online URL: https://support.nagios.com/kb/article/nagios-xi-apply-configuration-fails-backend-login-to-the-core-configuration-failed-532.html|
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