Microsoft always state the importance of security best practices in Lync environments. Taking this into consideration, the Lync environment is separated into different security areas and layers. It is not only based on Transport Layer Security (TLS) encryption (with certificate service and longer key length), it is well defined in other areas too.

In general, the key areas are:

  • Internet-based access
  • Logon traffic redirection
  • Internal server service segregation
  • Mediation server gateway communication

Document Purpose

The document focuses on the internet directed traffic and communication. This document does not cover other security mechanisms in depth. Also, two-factor authentication is not discussed in this document.