I recently performed an inplace upgrade of our front end
owa server from W2K/E2K to W2K3/E2K3 SP1. All E2K
mailboxes can access OWA fine. I then built a new BE E2K3
server. E2K3 users can access OWA fine directly to the BE
E2K3 server via http://exchservername/exchange, but when
they try to connect via FE server via https, they
immediately get a "HTTP 400 Bad Request error" Looks like
the request never even leaves the FE server.

The OWA server is in a DMZ and port 80 is fine. I even
tried moving the OWA server to the inside with the same
results.

Any thoughts?

Steve

Re: E2K3 OWA Bad Request by Mark

Mark
Mon Sep 13 02:21:48 CDT 2004

On Sun, 12 Sep 2004 07:38:54 -0700, "Steve Bevilacqua"
<steve@alston.com> wrote:

>I recently performed an inplace upgrade of our front end
>owa server from W2K/E2K to W2K3/E2K3 SP1. All E2K
>mailboxes can access OWA fine. I then built a new BE E2K3
>server. E2K3 users can access OWA fine directly to the BE
>E2K3 server via http://exchservername/exchange, but when
>they try to connect via FE server via https, they
>immediately get a "HTTP 400 Bad Request error" Looks like
>the request never even leaves the FE server.
>
>The OWA server is in a DMZ and port 80 is fine. I even
>tried moving the OWA server to the inside with the same
>results.
>
>Any thoughts?
>
>Steve

The FE shouldn't be in the DMZ since it requires way more than tcp 80
to be open. What else is open?
Better will be to abandon troublseshooting this and place the FE on
the internal network and publish tcp 443 from the Internet through to
the FE. If you want something in the DMZ then use an ISA server. There
are good instructions for setting up ISA and an FE at both
www.mexchange.org and www.isaserver.org

Re: E2K3 OWA Bad Request by anonymous

anonymous
Mon Sep 13 08:24:28 CDT 2004

Mark - Thanks, am aware of all the holes poked in our DMZ
and am working on that for the future, but not an option
at this time...all OWA to E2K users works fine and it
still failed from the inside.
>-----Original Message-----
>On Sun, 12 Sep 2004 07:38:54 -0700, "Steve Bevilacqua"
><steve@alston.com> wrote:
>
>>I recently performed an inplace upgrade of our front end
>>owa server from W2K/E2K to W2K3/E2K3 SP1. All E2K
>>mailboxes can access OWA fine. I then built a new BE
E2K3
>>server. E2K3 users can access OWA fine directly to the
BE
>>E2K3 server via http://exchservername/exchange, but when
>>they try to connect via FE server via https, they
>>immediately get a "HTTP 400 Bad Request error" Looks
like
>>the request never even leaves the FE server.
>>
>>The OWA server is in a DMZ and port 80 is fine. I even
>>tried moving the OWA server to the inside with the same
>>results.
>>
>>Any thoughts?
>>
>>Steve
>
>The FE shouldn't be in the DMZ since it requires way more
than tcp 80
>to be open. What else is open?
>Better will be to abandon troublseshooting this and place
the FE on
>the internal network and publish tcp 443 from the
Internet through to
>the FE. If you want something in the DMZ then use an ISA
server. There
>are good instructions for setting up ISA and an FE at both
>www.mexchange.org and www.isaserver.org
>.
>