As usual, the TechNet ISA Server 2004 webcast generated a huge number of great questions. I’ll be reviewing many of those and will post a few good ones here over time.
One question that comes up every time we deliver this content is how to block the various chat and peer file sharing programs. It’s really very easy with ISA 2004. The trick is to look inside the HTTP stream with a firewall policy rule. Here are some steps:
Common Application HTTP Signatures
if on a firewall running a MS ISA 2004 , how can i give access to a particular user for a peer to peer without giving access to other users on the network?
Is there a particular port i can leave open?
Can you give me more specifics on which program, ports it uses, does the user use a particular machine all of the time, if that machine is a static or dynamic ip address machine, etc.?
There are a number of options and depending on the environment it will depend on how to implement that effectively.
How do the Application HTTP Signature for Ares file sharing look? I want to block