first i'm sorry because my english is not very good.
our server has been migrate from isa server 2000 to isa server 2006 EE
we have everything in here still under development, but eveything with web proxy is done until one day, a client call and tell that her email can't be opened. So i check with my friends, and we see that ISA generate an error page look like this :
Error Code: 502 Proxy Error. The Uniform Resource Locator (URL) is invalid. The request was not entered correctly. Enter the correct URL and try again. (12005)
so i double check in ISA Server logging and i have report like this :
after that i compare to squid proxy, when i browse with squid proxy everything is going smoothly. My question, i know isa didn't block the websites but why it's still error? but when i opened all port it goes without error. I need help to help me to understand this thing....and thanx before.
It's when I try to open the pdf files I get the error, and I do not get it when I surf without the proxy. For now I just live with a rule that allows the site, but I would like an official fix better :)