User Guide
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AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
CONTENTS
CHAPTER
1 Getting Started with the Cisco Email Security Appliance 1-1
What’s New in This Release 1-1
Where to Find More Information 1-1
Documentation 1-2
Training 1-2
Cisco Notification Service 1-2
Knowledge Base 1-3
Cisco Support Community 1-3
Cisco Customer Support 1-3
Third Party Contributors 1-3
Cisco Welcomes Your Comments 1-4
Registering for a Cisco Account 1-4
Cisco Email Security Appliance Overview 1-4
Supported Languages 1-5
CHAPTER
2 Accessing the Appliance 2-1
Web-based Graphical User Interface (GUI) 2-1
Browser Requirements 2-1
Accessing the GUI 2-1
Changing Configuration Settings 2-3
Configuration Changes 2-3
Commit or Abandoning Changes 2-3
Command Line Interface (CLI) 2-3
Command Line Interface Conventions 2-3
General Purpose CLI Commands 2-7
CHAPTER
3 Setup and Installation 3-1
Installation Planning 3-1
Review Information That Impacts Planning Decisions 3-1
Plan to Place the Email Security Appliance at the Perimeter of Your Network 3-1
Register the Email Security Appliance in DNS 3-2
Installation Scenarios 3-3
Physically Connecting the Email Security Appliance to the Network 3-5