thekid.me.uk

I was going to write a small article about alternate access mapping within SharePoint, but it was never going to be as comprehensive as the article on the SharePoint team blog. I definitly recommend reading it as it gives some extremely useful information on how SharePoint treats different URLs and maps requests. This first part (1 of 3) gives details of configuring reverse proxies, specifically ISA server.

Articles also worth reading at include...

Configuring Multiple Authentication Providers for SharePoint 2007
Configure alternate access mapping
MOSS Zones and Alternative Access Mapping