Powercache can filter every http connection by using a header parameters.
The smart filtering mechanism enables the operator to block or replace or even redirect the requested URL in many different ways based on:
- Requested uri
- Regular expression
- referer url
- agent-ip, method, etc…
Powercache- Web & Content filtering
POWERCACHE- Web & Content filtering
The smart filtering mechanism enables the powercache to block any unwanted contents in many ways.
The host name can be compared using a simple pattern. A "*" (a star character) stands for any number of any character.
As an example:
"*.foobar.com" matches any sub domain of foobar.com, such as www.foobar.com or img.foobar.com
Ultimately you can use regular expressions (also known as regexp).
While they can be quite complex, they provide a very powerful comparison method.
Describing regexp can be easily found on the Internet.