Sharepoint Authentication Windows and Custom Login Form

Question

We're trying to find a way to implement a rater tricky scenario.

We want to create a web app with Claims Based Windows Authentication, so that in a machine in the local domain the authentication is transparent.

This is simple.

Now, for users accessing the web app from outside the company we want to have a custom login page. Partially because we don't like the look and feel of the default login window, and partially because of the need to insert the domain on windows/ie machines.

Is there a way to do this, without enabling forms auth (this breaks the seamless auth in local machines)

We currently are looking at:

• a custom http module
• editing _windows/default.aspx

Thanks

Answer 1

It's usually done by creating a custom Signin page which directs you to the right login page based on ip-range instead of having the user select the authentication provider in a dropdown.

You can find one solution at SharePoint 2010 automatic sign-in with mixed authentication