Suite à ma session des Microsoft TechDays, voici quelques ressources utiles sur la protection de Sharepoint avec ISA et Forefront/Antigen

Forefront Security for SharePoint
http://www.microsoft.com/forefront/serversecurity/sharepoint/download.mspx

Microsoft Forefront Security for SharePoint: Features
http://www.microsoft.com/forefront/serversecurity/sharepoint/features.mspx

Publishing Windows SharePoint Services with Microsoft Internet Security and Acceleration (ISA) Server 2004
http://www.microsoft.com/technet/isa/2004/plan/isawss.mspx

SharePoint Portal Server 2003 Document: Deploying on an Extranet by Using ISA Server 2000 and ISA Server 2004
http://www.microsoft.com/downloads/details.aspx?FamilyID=4C5BF9DD-3EFB-451D-B213-98ED039190BF&displaylang=en

Reverse Proxy Configurations for Windows SharePoint Services and Internet Security and Acceleration Server
http://www.microsoft.com/technet/windowsserver/sharepoint/v2/revproxy.mspx


Sharepoint 2007
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Configure alternate access mapping (AAM)
http://technet2.microsoft.com/Office/en-us/library/b1582c9e-ea10-4f94-bda4-6eae917cab9f1033.mspx?mfr=true

Supported Project Server 2007 extranet topologies
http://technet2.microsoft.com/Office/f/?en-us/library/6e170052-cc74-4d28-8d58-4b4a52dc69d81033.mspx


Sharepoint 2003:
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Scenario 3: Single Portal Site on a Single Virtual Server (Using ISA Server 2004)
http://office.microsoft.com/en-us/sharepointportaladmin/CH011921711033.aspx

Step 6: Verify that the Proxy Server Settings for SharePoint Portal Server Search Are Correctly Specified
http://office.microsoft.com/en-us/sharepointportaladmin/HA011913281033.aspx

Step 12: Edit the web.config File
http://office.microsoft.com/en-us/sharepointportaladmin/HA011913341033.aspx