title: What does gidNumber in phpLDAPadmin mean?
body: <p>I am new to openLDAP.</p>
  
  <p>When I create a new user (generic user), there is a field GID number.
  Can somebody explain what this field means?</p>
  
  <p>Does this number needs to be unique? I can select between my posixGroups.</p>
  
  <p>I have the same posixgroups in each country (OU): users, admin, linux. 
  When I have the list of posixGroups in the GIDnumber, there I cannot see which group from which ou I need to select? How can I solve this?</p>
  
  <p>When you select a posixsgroup for a new user. When I go to that selected group, how can I see that the new user is a member of that group?</p>
  
  <p>Kr,</p>
  
  <p>Joeri</p>