title: Bind manager credential on ActiveDirectoryLdapAuthenticationProvider Spring framework
body: <p>On a JHipster application, I've added a custom authentication provider, to verify user and password of Active Directory users that have login inside. This custom component implements AuthenticationProvider, and inside "authenticate" method, istance an ActiveDirectoryLdapAuthenticationProvider object to get authentication and verify presense on specifical groups.</p>
  
  <p>With a simple A.D. test environment I've no problem, but in production, my company ask me to bind a service account, and I cannot found any method to setup manager-ad and password. How can I get around this problem?</p>
  
  <p>On Spring documentation I've read the phrase "There is no concept of a "manager" user."</p>
  
  <p>My app use 5.1.8.RELEASE
  Thanks!</p>