Firewall Wizards mailing list archives
Single Exchange/OWA on LAN with Internet Access - a good
From: "Ravdal, Stig" <SRavdal () Quiznos com>
Date: Thu, 17 Nov 2005 08:50:15 -0700
Hi everyone, I hope that someone has been through this before and have some substantial arguments for/against: Our MS admins are proposing to implement single OWA/Exchange servers on the LAN and allow access directly to the server through the firewall. The primary reason for doing it this way is to reduce the cost of the front-end server that would otherwise reside in a DMZ. Their argument is that with OWA 2003 you have to have a bunch of ports open anyway and so what is the reason to put a front end server in the DMZ - if that server were compromised they would practically have access to the network anyway. With the OWA/Exchange server inside the firewall access from the Internet can be limited to 80 and/or 443 only. My concern is that with the next OWA vulnerability someone will own the server in the DMZ through a single exploit. However, I cannot find anything that suggests that the front end server solution is really any more secure. Yeah it's another hop but it would be an easy one as soon as the front end server is compromised. Thoughts? Thanks, Stig _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- Single Exchange/OWA on LAN with Internet Access - a good Ravdal, Stig (Nov 17)
- Re: Single Exchange/OWA on LAN with Internet Access - a good Paul D. Robertson (Nov 17)
- Re: Single Exchange/OWA on LAN with Internet Access - a good Patrick M. Hausen (Nov 28)
- <Possible follow-ups>
- RE: Single Exchange/OWA on LAN with Internet Access - a good Thomas W Shinder (Nov 17)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Paul Melson (Nov 21)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Behm, Jeffrey L. (Nov 17)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Ravdal, Stig (Nov 17)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Kim, Cameron (Nov 21)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Ravdal, Stig (Nov 21)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Ravdal, Stig (Nov 21)
- RE: Single Exchange/OWA on LAN with Internet Access - a good Matt Bazan (Nov 21)
(Thread continues...)