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Getting Started

Background information regarding this subject is available on our:

• Official documentation
• YouTube Video

Problem

During a site update on Checkmk Appliance, you may run into a Proxy error from apacheApache.

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Proxy Error. 
The proxy server received an invalid response from an upstream server. 
The proxy server could not handle the request. 

Reason: Error reading from remote server

Solution

If you encounter an error, the update will not be successful. To enable the webconf to function properly, please follow these steps:

1. Check the update.log on the Checkmk Appliance.
   
   You will notice that the update.log is hanging and full of errors

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1. language bash theme RDark
   root@mylinuxhost:/mnt/auto# cat /omd/sites/

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1. mysite/var/log/update.log

   
   
   

2. You

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1. need to solve all the problems
   .

2. Now you need to

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1. rerun the update config command

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1. to update the whole config

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   language bash theme RDark
   OMD[

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1. mysite]:~$ cmk-update-config -vv

   .

2. Start the Site. The webconf should work again.
   
   If the webconf is not working, try to restart the

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1. Apache and webconf daemon.

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   language bash theme RDark
   root@mylinuxhost ~$ systemctl status webconfd

   
   

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   language bash theme RDark
   root@mylinuxhost ~$ systemctl status apache2.service

   
   
   

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