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Practical Cisco Unified Communications Security

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  • About
  • Description
  • Sample Content
  • Updates

Features

  • Follows the proven “Explain, Demonstrate, Verify” methodology: illuminates each security concern, walks through remediation, and helps you make sure you’ve succeeded
  • Helps you comply with crucial local, federal and industry security regulations, reduce your attack surface, and strengthen your security posture
  • Reflects key updates to Cisco collaboration architecture: Expressway, mobile/remote access, Cisco Meeting Server, encryption enhancements, and advanced business-to-business collaboration

  • Copyright 2021
  • Dimensions: 7-3/8" x 9-1/8"
  • Pages: 528
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-665445-2
  • ISBN-13: 978-0-13-665445-2

Master the foundations of modern Cisco Unified Communications (UC) system security

This guide helps you build foundational knowledge for securing modern Cisco Unified Communications environments that support voice, video, messaging, and meetings, and support different types of real-time collaboration capabilities based on mobile/remote access and mobile devices based on bring-your-own-device (BYOD) initiatives.

Writing for administrators and managers, two Cisco collaboration experts bring together methods and insights to illuminate both the “why” and the “how” of effective collaboration security. Using the proven “Explain, Demonstrate, and Verify” methodology, they explain each threat, demonstrate remediation, and show how to confirm correct implementation. You’ll walk through securing each attack surface in a logical progression, across each Cisco UC application domain.

The authors address key updates to Cisco collaboration architecture, including Expressway, Cisco Meeting Server, encryption enhancements, and advanced business-to-business collaboration. You’ll find quick-reference checklists in each chapter, and links to more detail wherever needed.

  • Begin by protecting your workforce through basic physical security and life/safety techniques
  • Understand how attackers seek to compromise your UC system’s network environment—and your best countermeasures
  • Maintain security across all UC deployment types n Protect core UC applications by locking down and hardening the core operating system
  • Use encryption to protect media and signaling, and enforce secure authentication
  • Secure Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Meeting Server
  • Deploy Session Border Controllers to provide security controls for VoIP and video traffic
  • Provide additional protection at the edge of the network
  • Safeguard cloud-based and hybrid-cloud services
  • Enable organizations to seamlessly and securely connect to cloud UC services
  • Allow remote teleworker users to connect safely to local UC resources

Online Sample Chapter

Security Through Network Fundamentals

Sample Pages

Download the sample pages (includes Chapter 3)

Table of Contents

Introduction xix

Chapter 1 The Importance of Practical UC Security 1

Identifying the Threat Landscape 2

The Danger of Shadow IT 4

Balancing Operations and Security 5

Minimizing Complexity 7

Visibility and Management 10

Introduction to ACME: Case Study 11

Summary 13

Additional Resources 14

Chapter 2 Physical Security and Life Safety 15

Introduction to Physical Security and Life Safety 15

Life and Safety Considerations 28

Summary 53

Additional Resources 54

Chapter 3 Security Through Network Fundamentals 55

Introduction to Network Security 57

Segmentation 58

Micro Segmentation 59

Secure Network Access 64

Security Features 75

Firewalls and Access Controls 84

Continuous Monitoring 86

Summary 86

Additional Resources 87

Chapter 4 Maintaining Security Across UC Deployment Types 89

Common Enterprise Collaboration Deployment Models and Security Considerations 90

An Overview of How to Secure Cluster Communications 96

NTP Authentication Enablement and Verification 100

Securing Intra-Cluster Signaling and Traffic 103

Securing the Signaling Traffic to IOS Voice and Analog Gateways 110

Securing the Integration with Cisco Emergency Responder 118

Summary 123

Additional Resources 124

Chapter 5 Hardening the Core Cisco UC Appliance Operating Systems 125

Defining the Core UC Applications 126

Hardening the Voice Operating System 138

Performing OS Lockdown via CLI 147

Summary 159

Additional Resources 159

Chapter 6 Core Cisco UC Application Lockdown 161

Types of Users in Cisco Unified Communications Manager and Cisco Unity Connection 162

Strengthening Local User Account Controls 163

Importing End Users from a LDAP Directory 175

Using Single Sign-On to Simplify the Login Experience 186

Synching End Users Between Unity Connection and Unified CM Using

Locking Down the GUI 201

Enabling System Monitoring Using SNMP and Syslog 204

Disaster Recovery Planning and Best Practices 213

Summary 214

Additional Resources 214

Chapter 7 Encrypting Media and Signaling 217

Licensing (Encryption License) and Allowing Export Restrictions Requirements 218

FIPS Considerations When Enabling Secure Signaling and Media Encryption 222

Public Key Infrastructure Overview 222

TFTP File Encryption 237

Overview of the Endpoint Registration Process 239

Applying the Secure Phone Profiles and LSC to the Phones 264

Summary 271

Additional Resources 271

Chapter 8 Securing Cisco Unified Communications Manager (Cisco) 273

Endpoint Hardening 274

Secure Conferencing 276

Conference Now 298

Smart Licensing 298

Summary 302

Additional Resources 303

Chapter 9 Securing Cisco Unity Connection 305

Baseline Security Considerations Overview 306

Securing User Access to the Unity Connection 311

Securely Integrating Unity Connection with Unified CM 316

Preventing Toll Fraud in Unity Connection 325

Summary 336

Additional Resources 337

Chapter 10 Securing Cisco Meeting Server 339

CMS Overview and Deployment Modes 340

Operating System Hardening 342

Infrastructure Considerations 347

Securing CMS Connections 351

Certificate Verification 356

Certificate Assignment 360

Application Programming Interfaces (APIs) 367

Inbound and Outbound Calling 370

Summary 381

Additional Resources 382

Chapter 11 Securing the Edge 383

Business Requirements for the Collaboration Edge 383

Cisco’s Collaboration Edge Architecture 384

Deploying CUBE 388

Security Features Within Expressway 403

Deploying Mobile and Remote Access 406

Defending Against Attacks at the Edge 420

B2B Connectivity 422

Summary 424

Additional Resources 425

Chapter 12 Securing Cloud and Hybrid Cloud Services 427

Business Drivers for Cloud and Hybrid UC Services 428

Coordinating for Governance and Compliance 430

Considerations for Secure Calling 433

Securing Messaging Services 446

Meeting Management and Security Controls 456

Security Across Emerging Features 463

IoT Security 467

Summary 470

Additional Resources 470

Afterword 471

TOC, 9780136654452, 11/5/2020

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