edwalt's - Things I Wish I'd known about SBS 2003....
So heres the deal. You have clients behind ISA 2004, trying to browse to a redirecting website. The site starts with an http connection, the user is prompted to logon, or the site redirects to a more secure connection <https>. The interesting thing is that it worked BEFORE installing ISA 2004 Service Pack 2. Hmmmmmmm.
When trying to connect to the https portion of the site various errors are returned:
Why is this happening?
It appears the problem is caused because ISA will add spaces between some headers and their values. If this happens some webservers see the space as the beginning of the hostname. The server then redirects the browser to a website that begins with a space that fails. The browser then fails because it cannot access the malformed URL.
How do I fix this?
Buddy, seriously, thank you so much for this information, it helped me heaps. I had a similar error which I had troubleshot for a day and had eventually gained enough info to find this page, and your advice fixed the problem.
Same thing, prob appeared after SP2, but I had different error messages. Was causing alot of frustration and I couldn't find help anywhere. ISA logs weren't providing useful data either :o/
Jason - AU
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re:11001:host not found ,the problem still found when enter to web sit www.symantec.com
and this message appear
Error Code 11001: Host not found
Background: This error indicates that the gateway could not find the IP address of the website you are trying to access. This is usually due to a DNS-related error.
Date: 12/7/2009 11:29:07 AM
Source: DNS error
please try to solve this problem and send me on