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CentOS Bible by Timothy Boronczyk, Christopher Negus

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Chapter 24. Making Servers Public with DNS

In previous chapters, you built Web, mail, and FTP servers in Linux. Now you want to expose those servers to the outside world. Options range from handing them to a hosting company and saying, "Take care of it," to managing the servers yourself out of your own home or office.

The following are some cases in which you may want to consider some level of self-hosting:

  • You're willing to provide the level of support that your organization needs in its servers.

  • You just want an inexpensive way to publish some documents on the Web or maintain a public mail server for a few people, and 24/7 support isn't critical.

  • You think self-hosting is cool, and you want to try it.

The first goal of this chapter is to help you decide how much server support you want to maintain or provide to someone else. The second goal is to suggest how to set up your own public servers, including possibly configuring your own Domain Name System (DNS) server.

The descriptions of setting up your LAN (see Chapter 14) and connecting it to the Internet (see Chapter 15) focus on how to share information locally and let local users share an outgoing Internet connection, respectively. Building on that information, this chapter explains how to set up a DNS server, as well as other issues that relate to securing and maintaining public servers.

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