I have a Website correctly working on Windows Server 2008 R2 with IIS 7.5. The website is available just for users connected to the company's internal network and it cannot be accessed from the Web.
The company has also other Web servers that have websites that are accessible from the Web.
I need the website to access some Web resource (such as a Twitter account), in order to use the data. How can I give this permission in IIS 7.5?
In a more general context, is it possible, for the same website, to set different reachability permissions for each application, without using authentication mechanism?
IMPORTANT: It does not have anything to do with authentication, the website is just unreachable from outside the company's domain.