How to control web application access based on Active Directory Groups

Hi All,

I am a new developer using Visual Studio 2017.

I wish to create a Asp.net web application that will control (Allow/Deny) access to certain pages based on which Group the User is a member of in a already existing Active Directory Setup on our network(e.g. if the user is Member of "Accounts" Group they will only see Accounting pages).

How will I be able to implement this after creating a new ASP.NET application(project)?

I only know that there is a "Change Authentication" option when creating the solution, but how would I proceed from there?

After that, how would I reference the user's Group value to control page access?

Any help is greatly appreciated.

Regards,

Patrick