title: How to find the global catalog of my network in ADDC?
body: <p>I'm learning IT right now, and I have this situation.</p>
  
  <p>The employee who was the administrator, got out of the company. But he doesn't leave a documentation to tell me which of my ADDC (Active Directory Domain Controller) is the PDC, I mean I'm interested to fin the global catalog and structure of my network.</p>
  
  <p>Does you know a post from TechNet or some site to find this PDC in Windows Server 2008 R2?</p>