Welcome to the 3-DNS Controller Installation Guide. Before you get started installing the controller, we recommend that you browse the 3-DNS Controller Administrator Guide to find the configuration solution that most closely matches your needs. Briefly review the basic configuration tasks and the few pieces of information you should gather in preparation for completing the tasks, such as IP addresses and host names.
Once you find your solution in the Administrator Guide and gather the necessary network information, turn to this Installation Guide for instructions on installing the hardware and running the First-Time Boot utility. Then return to the Administrator Guide for instructions on setting up your chosen solution.
The 3-DNS Controller provides the following web-based and command line administrative tools that make for easy setup and configuration.
The First-Time Boot utility is a wizard that walks you through the initial system set up. The utility helps you quickly define basic system settings, such as a root password and the IP addresses for the interfaces that connect the 3-DNS Controller to the network. The First-Time Boot utility also helps you configure access to the 3-DNS web server, which hosts the web-based Configuration utility, as well as the NameSurferTM application that you can use for DNS zone file management.
The Configuration utility is a web-based application that you use to configure and monitor the 3-DNS Controller. Using the Configuration utility, you can define the load balancing configuration along with the network setup, including data centers, sync groups, and servers used for load balancing and path probing. In addition, you can configure advanced features such as topology settings and the SNMP agent. The Configuration utility also monitors network traffic, current connections, load balancing statistics, and the operating system itself.
The 3-DNS web server, which hosts the Configuration utility, provides convenient access to downloads such as the SNMP MIB, and documentation for third-party applications such as NameSurferTM.
The NameSurfer application, produced by Data Fellows, is a third-party application that automatically configures DNS zone files associated with domains handled by the 3-DNS Controller. You can use NameSurfer to configure and maintain additional DNS zone files on 3-DNS Controllers that run as master DNS servers. The Configuration utility provides direct access to the NameSurfer application, as well as the corresponding documentation for the application.
The 3-DNS Maintenance menu is a command line utility that executes scripts which assist you in configuration and administrative tasks, such as installing the latest version of the big3d agent on all your systems, backing up the load balancing configuration files, or adding a new 3-DNS Controller to an existing network. You can use the 3-DNS Maintenance menu directly on the 3-DNS Controller, or you can use the menu when connected to the controller using a remote shell, such as an SSH client (if ssh is configured), or an RSH client (if rsh is configured).
The Configuration utility, which provides web-based access to the 3-DNS Controller system configuration and features, supports the following browser versions:
The 3-DNS® Controller Administrator Kit provides simple steps for quick, basic configuration, and also provides detailed information about more advanced features and tools, such as the 3dnsmaint command line utility. The information is organized into the guides described below.
To help you easily identify and understand certain types of information, all F5 Networks administrative documentation uses the stylistic conventions described below.
Warning: All examples in F5 Networks documentation use only non-routable IP addresses. When you set up the solutions we describe, you must use IP addresses suitable to your own network in place of our sample IP addresses.
When we first define a new term, the term is shown in bold italic text. For example, a virtual server is the combination of an IP address and port that maps to a set of back-end servers.
We apply bold text to a variety of items to help you easily pick them out of a block of text. These items include web addresses, IP addresses, utility names, and portions of commands, such as variables and keywords. For example, the nslookup command requires that you include at least one <ip_address> variable.
We use italic text to denote a reference to another document. In references where we provide the name of a book as well as a specific chapter or section in the book, we show the book name in bold, italic text, and the chapter/section name in italic text to help quickly differentiate the two. For example, you can find information about 3dnsmaint commands in the 3dnsmaint Command Reference section of the 3-DNS Controller Reference Guide.
We show actual, complete commands in bold Courier text. Note that we do not include the corresponding screen prompt, unless the command is shown in a figure that depicts an entire command line screen. For example, the following command shows the current status of the 3-DNS daemons:
Table 1.1 explains additional special conventions used in command line syntax.
|Item in text||Description|
|Continue to the next line without typing a line break.|
|You enter text for the enclosed item. For example, if the command has <your name>, type in your name.|
|Separates parts of a command.|
|Syntax inside the square brackets is optional.|
|Indicates that you can type a series of items.|
You can find additional technical documentation about the 3-DNS Controller in the following locations: