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Table of Contents
3-DNS
®
Administrator Guide vii
1
Introduction
IMPORTANT HARDWARE INFORMATION ............................................................ 1-1
Getting started ................................................................................................................. 1-1
Choosing a configuration tool ................................................................................ 1-2
Browser support ...................................................................................................... 1-3
Using the Administrator Kit ........................................................................................... 1-3
\Stylistic conventions .............................................................................................. 1-4
What is the 3-DNS Controller? ....................................................................................... 1-5
Internet protocol and network management support .............................................. 1-6
Security features ..................................................................................................... 1-6
Configuration scalability ........................................................................................ 1-6
System synchronization options ............................................................................. 1-7
Configuring data collection for server status and network path data ..................... 1-7
Redundant system configurations ........................................................................... 1-8
What’s new in version 4.5 .............................................................................................. 1-9
Automatic discovery ............................................................................................... 1-9
Easy system account and password creation .......................................................... 1-9
Enhanced synchronization ...................................................................................... 1-9
Expanded statistics ................................................................................................ 1-10
Multi-homing and firewall support ....................................................................... 1-10
Security enhancements ......................................................................................... 1-10
Finding help and technical support resources ............................................................... 1-11
2
Planning the 3-DNS Configuration
Managing traffic on a global network ............................................................................. 2-1
Understanding a basic 3-DNS configuration .......................................................... 2-1
Synchronizing configurations and broadcasting performance metrics ................... 2-2
Using a 3-DNS Controller as a standard DNS server ............................................. 2-3
Load balancing connections across the network .................................................... 2-4
Working with 3-DNS Controllers and other products ............................................ 2-4
Planning issues for the network setup ............................................................................ 2-6
Configuring the base network ................................................................................. 2-6
Defining data centers and servers ........................................................................... 2-7
Planning a sync group ............................................................................................. 2-7
Setting up communications on a 3-DNS Controller ............................................... 2-8
Choosing the 3-DNS mode ........................................................................................... 2-10
Running a 3-DNS Controller in node mode ......................................................... 2-10
Running a 3-DNS Controller in bridge mode or router mode .............................. 2-11
Planning issues for the load balancing configuration ................................................... 2-12
Using advanced traffic control features ........................................................................ 2-12
3
Using the Setup Utility
Creating the initial software configuration with the Setup utility .................................. 3-1
Connecting to the 3-DNS Controller for the first time ................................................... 3-2
Running the utility from the console or serial terminal .......................................... 3-2
Running the Setup utility remotely ......................................................................... 3-2
Using the Setup utility for the first time ......................................................................... 3-5
Keyboard type ......................................................................................................... 3-5
Root password ........................................................................................................ 3-5
Host name ............................................................................................................... 3-6
Redundant system settings ...................................................................................... 3-6