title: Can AD be used over the internet to authenticate a user?
body: <p>Right now we have AD/Exchange to manage all of our users logins/e-mail on-site at the office. The major app that everyone uses maintains its own login accounts and all users have a tendency to forget login information for at least one of the two logins. </p>
  
  <p>What I'm considering doing is using AD to authenticate the user in the application so that they don't even have to login to the app after they've logged into their machine.</p>
  
  <p>The problem is that there are small number of users that work off-site (the app can work over the internet) and just use the machine's local account (which is causing problems of its own). </p>
  
  <p>What I'm wondering is, will using AD to authenticate users on-site still be an option if a user works off-site?</p>