How to change LAC log level without restart?

When we cannot restart the Bastion Reverse Proxy service but we want to change the LAC Filter log level do the following:

• In the Admin Portal under 'Support & Maintenance' navigate to 'Logs and Settings'. Take note of 'Lac Log Level URL Update' value:
  
  
  
  
• In the Lync_Access_Control.xml file located in the Bastion server at:

  Agat\Bastion\filter\<filter_folder_name>

• Change the log severity to the required one:
  
  
  
• In the Bastion.xml notice the external hosts to whom the Bastion listens:
  
  
  

In your browser enter the LAC update URL in the following format:

<external_host>/<LAC Log Level Update URL>

In this case, we have 3 hosts therefore 3 options for the URL:

lyncdiscover.china.agat.world/updatelacloglevels-4046
fe.china.agat.world/updatelacloglevels-4046
meet.china.agat.world/updatelacloglevels-4046

• If the update was completed successfully you should the following message in your browser:
  
   

Important Note

In the case where a load balancer is deployed and we want to change to the log level, we will need to access the URL from the Bastion server.
In order to forward the request to the localhost, we need to edit the hosts file.
Here how to change the log level without a restart:

• Open the 'hosts' file located at:

  C:\Windows\System32\drivers\etc

• Add a new record forwarding traffic of the relevant host that's published in the channel, to localhost, AKA as 127.0.0.1:
  
  
  
• A successful update should look like: