how do i allow domain users to access shares from my member domain file ser

Hi,

I have 2 servers, server A which is the AD server and server B which is a file server and member of the domain

I have set up shares on server B and would like to share with all my domain users. However when I click on : sharing and security –> security — Add . I can only see the users from local Server B

How do I allow access to other domain users. Please explain in details. Thanks