Manual : 3-DNS Administrator Guide, version 3.0

Applies To:

Show Versions Show Versions

3-DNS Controller versions 1.x - 4.x

  • 3.0 PTF-02, 3.0 PTF-01, 3.0.0
Original Publication Date: 03/01/2010


Getting started

Choosing a configuration tool
Browser support

Using the Administrator Kit

Stylistic conventions

Finding help and technical support resources

What is the 3-DNS Controller?

Internet protocol and network management support
Security features
Configuration scalability
System synchronization options
Configuring data collection for server status and network path
Redundant system configurations

Managing traffic on a global network

A sample network layout
Synchronizing configurations and broadcasting performance
Using a 3-DNS Controller as a standard DNS server
Load balancing connections across the network
Working with BIG-IP Controllers and other products

What's new in version 3.0

Network Map
ECV service monitors
IP geolocation
Dynamic delegation
KBPS load balancing
Limit checks for availability
Last resort pool
Prober, hops, and discovery ACLs
Open SSH support

Essential Configuration Tasks

Reviewing the configuration tasks

Essential configuration tasks

Planning issues for the network setup

Defining data centers and servers
Planning sync groups
Setting up communications between 3-DNS Controllers,
BIG-IP Controllers, and big3d agents

Planning issues for the load balancing configuration

Using advanced traffic control features

Planning DNS zone file management

Replacing your DNS servers with 3-DNS Controllers
Running 3-DNS Controllers as authoritative for sub-domains only

Setting up a basic configuration

Setting up a data center

Setting up servers

Defining 3-DNS Controller servers
Defining BIG-IP Controller servers
Defining EDGE-FX Caches
Defining host servers
Configuring host SNMP settings

Setting up sync groups

Setting the time tolerance value

Configuring global variables

Configuring a Globally-Distributed Network

Configuration overview

Target usage

Setting up a globally distributed network configuration

Adding data centers to the globally distributed network
Adding 3-DNS Controllers to the globally distributed network
Adding BIG-IP Controllers to the globally distributed network
Adding wide IPs
Configuring topology records for the globally distributed network

Additional configuration settings and tools

Setting limits thresholds
Other resources

Configuring a Content Delivery Network

Introducing the content delivery network

Using the 3-DNS Controller in a CDN
CDN configuration example

Deciding to use a CDN provider

Setting up a CDN provider configuration

Adding data centers
Adding 3-DNS Controllers
Adding servers
Adding wide IPs and pools
Adding a topology statement

Ensuring resource availability

Monitoring the configuration

Adding 3-DNS Controllers to the Network

Working with more than one 3-DNS Controller

Preparing to add a second 3-DNS Controller to your network

Installing the hardware and running the First-Time Boot utility
Making the principal 3-DNS Controller aware of the additional

Running the 3dns_add script

Verifying the configuration

Administration and Monitoring

Monitoring and administration utilities provided on the
3-DNS Controller

Working with the 3-DNS Maintenance menu

Configuring wide IPs
Viewing statistics
Working with the big3d agent
Managing synchronized files
Working with security issues
Using the 3-DNS web server
Working with syncd
Configuring NTP
Configuring NameSurfer

Changing passwords for the 3-DNS Controller

Changing passwords and adding new user IDs for the
3-DNS web server

Using the 3-DNS Console

Using the Network Map

Viewing system statistics

Additional Load Balancing Options

Configuring load balancing using specialized modes

Setting up Quality of Service (QOS) mode

Understanding QOS coefficients
Customizing the QOS equation
Using the Dynamic Ratio option

Setting up Global Availability mode

A Global Availability configuration example

Setting up load balancing for services that require multiple ports

An example configuration for e-commerce services
Ensuring availability for e-commerce, FTP, and other services that
use multiple ports