In this section, a highly secure and complex design will be discussed. In this scenario there is an Active Directory Forest with three domains; the Forest Root Domain (CIE.INT) and two sub-level domains (DE and US). Each domain contains Lync Server components and there are Administrators separated for each security area (this is not shown in the diagram).

The four security areas are:

  • FO zone – the Internet-facing zone without domain members
  • MO zone – a DMZ which contains the second defends line of Director Servers as Root domain Members
  • Domain 1 as a user and resources domain
  • Domain 2 as a user and resources domain

This is a real life scenario which was principally designed for a defense corporation with more than 8 domains, with highly secure backbone technologies, full administrative isolations and more requirement considerations.