[GEOS-11141] Add section about logging configuration hardening (geose…

…rver#7144)

* Add information about logging configuration hardening

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Authored-by: Ángel Heredia

doc/en/user/source/production/config.rst

@@ -10,6 +10,15 @@ Logging may visibly affect the performance of your server. High logging levels a
 
 You can change the logging level in the :ref:`config_globalsettings_log_profile`.  You will want to choose the ``PRODUCTION`` logging configuration, where only problems are written to the log files.
 
+Logging configuration hardening
+-------------------------------
+
+For production systems, it is advised to set ``GEOSERVER_LOG_LOCATION`` parameter during startup. The value may be defined as either an environment variable, java system property, or servlet context parameter.
+
+The location set for ``GEOSERVER_LOG_LOCATION`` has priority, causing the value provided using the Admin Console GUI or REST API to be ignored. This approach establishes a separation of responsibility between those setting up and controlling the actual machine, and those configuring the GeoServer application.
+
+See :ref:`logging` for more information.
+
 Set a service strategy
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