OWA HTTP/1.1 503 Service Unavailible   

This is a box that will be used in a sister organization that will not have 
all of the security that our main organization has. This box currently is a 
beta box to discover what security issues will be need to be covered. In 
attempt to make this standalone mail server somewhat secure to this 
organization, I have opted to close all the ports, with the exception of 
necessary port,  on the network card to prevent any from being open. This is 
when the error occurs to the OWA. The ports I am currently keeping open for 
the Exchange to function are: 25, 80, 143, 389, 443, and 3268. I have enabled 
more ports but to no avail. 

This error is because of ports not being opened. When I Permit All ports 
everything works fine. Any suggestions to the port(s)? I have other ideas of 
a little more secure enviroment, however I would like to know for future 
knowledge on the port issue. I am running Exchange 2003 Sp1

Thanks

date: Mon, 1 Aug 2005 08:09:10 -0700   author:   JC

Re: OWA HTTP/1.1 503 Service Unavailible   

Hi,

Thta should be the same ports as required if a front-end server is located
in a DMZ so I have added a link to a document describing this setup:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=AFAD8426-572E-40F8-99DA-EB7198F374C4

Leif

"JC"  skrev i en meddelelse
news:76EBFE6B-2761-4517-9A45-BC0D89506868@microsoft.com...
> This is a box that will be used in a sister organization that will not
have
> all of the security that our main organization has. This box currently is
a
> beta box to discover what security issues will be need to be covered. In
> attempt to make this standalone mail server somewhat secure to this
> organization, I have opted to close all the ports, with the exception of
> necessary port,  on the network card to prevent any from being open. This
is
> when the error occurs to the OWA. The ports I am currently keeping open
for
> the Exchange to function are: 25, 80, 143, 389, 443, and 3268. I have
enabled
> more ports but to no avail.
>
> This error is because of ports not being opened. When I Permit All ports
> everything works fine. Any suggestions to the port(s)? I have other ideas
of
> a little more secure enviroment, however I would like to know for future
> knowledge on the port issue. I am running Exchange 2003 Sp1
>
> Thanks

date: Wed, 3 Aug 2005 22:50:19 +0200   author:   Leif Pedersen [MVP]