ISAserver.org - RealTime Article Update Hi ISAlist, Title: ISA Server 2004: Supporting Both Basic and Forms-based Authentication with a Single External IP Address and Web Listener Author: Thomas Shinder Summary: one problem with the OWA forms-based authentication mechanism as implemented in ISA Server 2004 is that forms-based authentication and other forms of authentication are mutually exclusive on the same listener. This means if you enable forms-based authentication on a Web listener accepting incoming Web connections, then no other authentication method can be used. This is problematic for users who have only a single IP address bound to the external interface of the ISA Server 2004 firewall and need to publish both the OWA and Exchange Mobile Access sites (such as OMA, Active-Sync and Exchange RPC/HTTP. This article provides you with a powerful workaround. Link: http://www.ISAserver.org/pages/article.asp?id=1206 Visit the Subscription Management (http://newsletter.isoftmarketing.com/) section to unsubscribe. ISAserver.org is in no way affiliated with Microsoft Corp. For sponsorship information, contact us at advertising@xxxxxxxxxxxxx Copyright © ISAserver.org 2003. All rights reserved.