Important: If you think you might want to connect to the Internet in the future, you should register with an Internet registry and use the IP addresses provided by the registry when setting up your private network. Otherwise, when you do connect to the Internet, you’ll need to reconfigure every computer on your network.

If you set up a private TCP/IP network, you can also provide DNS service. By setting up TCP/IP and DNS on your local area network, your users will be able to easily access file, web, mail, and other services on your network.

Hosting Several Internet Services With a Single IP Address

You must have one server supplying all your Internet services (like mail, web). They may all be running on one computer with a single IP address. For example, you may want to have the domain name www.example.com resolve to the same IP address as ftp.example.com, or mail.example.com.

Setting up the DNS records for this service is easy. You’ll still need a full set of DNS records, one for each name you want to resolve.

•Set up MX records for mail, so mail.example.com resolves to your server’s IP address.

•Set up A records for each service your server provides, so web.example.com resolves to your server’s IP address.

•Do the same for each service you provide (ftp.apple.com, or fileshare.apple.com, or whatever).

As your needs grow, you can add other computers to the network to take over these services. Then all you have to do is update the DNS record, and your client’s settings can remain the same.

Configuring BIND Using the Command Line

In order to set up and use DNS service on Mac OS X Server you may wish to configure BIND with the command-line. Configuring BIND requires making changes to UNIX configuration files in the Terminal application. To configure BIND, you must be comfortable with typing UNIX commands and using a UNIX text editor. Only manipulate these settings if you have a thorough understanding of DNS and BIND, preferably as an experienced DNS administrator.

Warning: Incorrect BIND configurations can result in serious network problems.

What Is BIND?

BIND stands for Berkeley Internet Name Domain. BIND runs on UNIX-based operating systems and is distributed as open-source software. BIND is used on the majority of name servers on the Internet today.

Chapter 2 DNS Service

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Apple 034-2351_Cvr Configuring Bind Using the Command Line, Hosting Several Internet Services With a Single IP Address
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