In order to support modifying outgoing headers with CacheControl MaxAge values, your Apache installation needs to have mod_headers enabled on it. The following guides show you how to enable mod_headers in different environments.
mod_headers should already be included with your Apache installation on Ubuntu machines, so usually all you need to do is enable it.
- Log in to the command-line of your Ubuntu server
- Run the following commands:
Additional Systems/OS's will be added to this page over time.