Use the
WEBSITES > HTTP Caching page to edit caching parameters for a Service or Rule:

From this page you can set the following parameters:
- Enable/disable caching for the Service or Rule
- Specify response file extensions that can be cached
- Specify maximum and minimum object size for caching
- Specify whether to ignore request headers, response headers, and negative responses
- Enter the default cached object expiration age
For more information on editing caching parameters for a Layer 7 HTTP or HTTPS Service or Rule, log into the Barracuda Load Balancer web interface, go to the WEBSITES > HTTP Caching page, click the Edit icon next to the Service or Rule you wish to change, and then click the Help button.