title: LDAP get Users DN by Username and Domainname
body: <p>I have some understanding problems of LDAP.
  When i use an Active Directory Server i can bind with username@domain and a password.</p>
  
  <p>When i use ApacheDS i must give it the full DN of the user and a password.</p>
  
  <p>So i have the folowing Questions:</p>
  
  <ul>
  <li>How do i find out the full dn of a User on a ApacheDS Server with
  anonymous privilegs and only the knowledge of username, domain (and
  password)?</li>
  <li>Is this evenposible? Is the ApacheDS Server even made to be an</li>
  <li>alternative to Active Directory?</li>
  </ul>