SharePoint / IE 8: Loopback Security Check

Just a quick note – we recently had an issue on a project which had a host on a dns server pointing to a SharePoint webapp. When on the box hosting the webapp, I kept getting login prompts, even though i was logged in as the correct user.

It turns out that this is due to IE8 performing a loopback security check when accessing sites on a local machine via host header.

Workarounds are detailed here…

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