# Network Applications configuration overview

No configuration is required to be able to use Network Application elements in Access rules.

There are several predefined Network Application elements available that define the criteria for matching commonly used network applications. Creating Network Application elements or duplicating existing elements is not recommended. To override the settings of a predefined Network Application, edit the Service Definition of the rule in which you use the Network Application.

1. (Optional) Create TLS Match elements to override the properties of predefined Network Application elements.
2. Use the Network Application element in the Access rules.