Web Proxy

Dear Sir,
Does web-proxy on Mikrotik, can monitor all traffic of user that access to internet?
I have tried to enable this web-proxy service but i don’t know how to monitor it. So it have web server to monitor as GFI of ISA or not?

Please show me the ways to control it!

Thank for advance
Phearak

http://wiki.mikrotik.com/wiki/Manual:System/Log#Example:Webproxy_logging