title: What are the differences between LDAP and Active Directory authentication?
body: <p>I have tried to search without success. 
  (I do know difference between LDAP and Active Directory. Also read this <a href="https://stackoverflow.com/questions/663402/what-are-the-differences-between-ldap-and-active-directory">What are the differences between LDAP and Active Directory?</a>)</p>
  
  <p>According to my understanding, LDAP authenticates (binds) with DN (distinguish name) and password.
  E.g. <code>CN=bob, OU=Users,DC=test,DC=com</code> </p>
  
  <p>Active Directory authenticates with a short user name or full domain user name and password.
  E.g. <code>bob</code> or <code>bob@test.com</code> </p>
  
  <p>Therefore, LDAP does not allow to users with the same CN in the same tree (OU) but it allows the same CN in a different OU.
  Active Directory does not allow the same user name in the same domain, even the user object located in different tree of Active Directory.
  Active Directory allows the same user name in different domains.</p>
  
  <p>Other differences? </p>