Chapter 4
Maintaining Security Across UC Deployment Types
This chapter covers a variety of topics on how to maintain security across the different Unified Communications deployment models. To start, we cover the different UC deployment models with some associated security considerations surrounding availability and providing redundancy and resiliency for the UC environment. Then we follow up with common methods for securing the communication within the core UC applications. We focus on securing Network Time Protocol (NTP) to ensure the authenticity of the NTP servers the UC applications are synchronizing with. Next, we follow up with securing intracluster signaling between clustered UC application nodes such as Unified CM using IPsec. IPsec ...
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