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This article mainly introduces "how to use BIND to set up DNS server on Red Hat Linux". In daily operation, I believe many people have doubts about how to use BIND to build DNS server on Red Hat Linux. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubt of "how to use BIND to set up DNS server on Red Hat Linux". Next, please follow the editor to study!

Although Linux has not made remarkable progress in the world of desktop computing, it is already a little famous as a web server. Because of its excellent reliability, we can safely run all kinds of important service programs necessary for today's Internet era on Linux. As a result, some of the most common uses of Linux include being used as mail servers, Web servers, and DNS servers.

Next we will look at how to use BIND to set up a DNS server on Red Hat Linux. BIND (Berkeley Internet Name Domain) is a domain name resolution service package implemented on the UNIX/Linux system. We will learn the installation, initial configuration, and system setup steps required to set up and run a DNS server on Linux.

We use Red Hat as an example in this article, so you may want to use the RPM version of BIND, which you can find by searching www.rpmfind.net, because using a distribution in the form of RPM is the easiest way to install BIND. After downloading BIND's RPM, such as bind-9.1.0-10.i386.rpm, you need to execute the rpm-ivh bind-9.1.0-10.i386.rpm command as a superuser. When installing BIND in RPM, be careful to check for any missing dependencies that can cause the installation to fail.

If you prefer to install from the source package, you need to run the tar xvfz bind-9.1.3.tar.gz command to extract it as a super user after downloading a file such as bind-9.1.3.tar.gz. For this example, a directory called bind-9.1.3 is generated, which contains all the files necessary for the installation. Next, enter the newly created directory and execute the. / configure command. After the script has done all the configuration work, run make, and then run make install to complete the installation process. You should now have the basic configuration of BIND installed on your system, and then adjust it as needed.

Configure BIND

When BIND is installed on your system, you can configure it in a variety of ways. One of the two most commonly used settings is the ISP type setting, where the DNS server accepts and parses requests from anyone (or a set of predefined users), and the other is Web hosting, where the server parses only requests for the service domain name. When the use of the server changes, you can also change the type of configuration at any time.

The DNS server can be either a master server or a secondary server. The master server, also known as the master server, is the final source of the domain name. The master server is also the source of the zone transfer (zone transfer) to the secondary server. The secondary server receives all zone information from the master server. A common mistake is to try to change the zone database file on the secondary server without changing the zone database file (zone file) on the master server. Why two servers? Using redundancy in any configuration is a good idea, which is a native part of BIND and DNS. Fortunately, adding a second Linux machine to the computer room as a secondary DNS server will generally not affect your budget.

Keep in mind that when there are two types of servers, the master server can also act as a secondary server for other domains. This can be seen in most ISP environments where customers have their own master DNS server while using ISP as a secondary server for backup purposes. This type of configuration, as well as almost all other configuration items in BIND, is done through the named.conf file. This file stores server information and zone information in plain text. As shown in Table A.

Named.conf file exampl

Options {

Notify-source 10.0.0.2

Pid-file "/ var/run/named.pid"

}

Zone ". {

Type master

File "root.db"

}

Zone "example.com" {

Type master

File "/ var/named/sample.com.zone"

}

There are a variety of options available for the DNS server, and if you need some special installation, I recommend that you read through the accompanying documentation. In the above example, notify-source indicates where the server sends the zone change notification (NOTIFY) message, which is sent to the secondary server when the master server detects a change in the zone database file. The pid-file option simply tells the daemon (daemon) the path where the ID information is written by the server, usually / var/run/named.pid, but you can change it as needed if you reset the layout of the directory.

In the above example, the first zone registration entry is used to inform BIND of where to locate the root server. The server sends and receives not only your own domain information, but also all domain information on the Internet. Not every server has a registration entry for every domain name, but every server knows how to get information. Of course, since the list is updated regularly, it should also be recorded on a regular basis.

At this point, the study on "how to use BIND to set up a DNS server on Red Hat Linux" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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