Proxy Error during Site update

Proxy Error: "Error reading from remote server"

Problem

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

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

Check the update.log on the Checkmk Appliance.

You will notice that the update.log is hanging and full of errors
```
root@mylinuxhost:/mnt/auto# cat /omd/sites/test/var/log/update.log
```
You need to solve all the problems
Now you need to rerun the update config command to update the whole config
```
OMD[mysite]:~$ cmk-update-config -vv
```
Start the Site. The webconf should work again.

If the webconf is not working, try to restart the Apache and webconf daemon.
```
root@mylinuxhost ~$ systemctl status webconfd

root@mylinuxhost ~$ systemctl status apache2.service
```

The Update was completely finished. You received only an error because of some errors mentioned in the update.log