title: Active Directory / LDAP on .net5 MVC6 application
body: <p>i am trying to find a solution for connecting to <strong>LDAP/Active directory</strong> in order to check for user authentication on a <strong>.Net5 MVC6</strong> web application.
  i saw that there is a solution called ADAL but i want to be able to use it without Azure. 
  I am looking for a solution that is like the <code>System.DirectoryServices</code> (just one that does work with dnxcore50).
  has anyone been able to get it to work?</p>