View Single Post
  #2 (permalink)  
Old 2005-10-27
intehnet intehnet is offline
Member
 
Join Date: 2005-08-30
Location: Perth, Australia
Posts: 72
Rep Power: 4
intehnet has an average reputation (10+)
Default Re: Prohibiting the use of proxies

they can run these on any port really, so it's hard to trap without blocking everything
don't allow them outbound of any port, force them to use an internal proxy on port 8080 for their http connections, and make it do SSL tunneling.
you shouldn't need ANY ports outbound open unless for special requirements of the user, such as SSH outbound, or FTP, etc.
__________________
///M
Reply With Quote