How to publish VNC behind an ISA Server

I have just finished reading Greg's article in the tutorial section on
isaserver.org, in the article the instructions are to create to protocol
definitions for TCP ports 5800 and 5900 respectively. It states that
these are "outbound" definitions.

Then you are to use these two definitions to create two separate server
publishing rules.

Please correct me if I am misreading this, don't server publishing rules
require "inbound" protocol definitions.

Kevin



Other related posts: