Hengyang high-Protection server renting a DNS server in Linux environment tutorial

Hengyang High-protection server rental A tutorial on setting up a DNS server under Linux

DNS is the abbreviation for the domain Name System, the computer and Network Service naming system for the organization domain hierarchy. When a user enters a DNS name in the application, the DNS service can resolve the name to the IP address information associated with this name. This article will lead you to build a DNS server in the Linux environment.
I. Overview of relevant Knowledge
The DNS (domain Name System) is the domain Name Service system, which is the role of the domain name and IP address interchange. Each host on the network has a domain name, which gives the IP address of the host, the mail routing information, and so on. The name server is the program that stores information about the domain name space, and the application is done by it.
second, the installation of DNS server software
in Linux, this service is implemented with BIND, which is called the "named process" as the principal of the domain name server process.
1. Download the three files required to install bind from http://www.redhat.com: bind-8.2.2-p5-9.i386.rpm,
bind-devel-8.2.2-p5-9.i386.rpm, cache-nameserver-6.2-2.noarch.rpm.
2, respectively, three files for the RPM package installation, using the command: RPM–UHV.
3, finally compile and install, using the command: Make and do install.
after the above steps, the basic software has been installed properly, followed by the configuration of the server software.
named this principal process needs to read an initialization file at startup, and the default is/etc/named.boot. We also recommend that you use the NDC tools from Linux to start, abort, restart, refresh DNS data, output DNS data and many other debugging, for detailed use of this tool, please refer to the Linux technical documentation.
First Step: Configure the Build Named.boot. Because this is the configuration file that the named process first reads, but this file contains any DNS data by default, it needs to be entered manually to establish the following configuration example:
directory/var/named
Primary site.com db.site
Primary 0.0.127.in-addr. ARPA db.127.0.0
Primary 56.11.192. In-addr. ARPA db.192.11.56
Sitecache.db.sitecache
the meaning of each line is explained as follows (the file name involved in the example is self-drawn, including the third to fourth line):
directory/var/named: Specifies that the named process reads the path of all DNS data files, this example is the/var/named directory, and of course you can change it yourself.
Primary site.com Db.site: named as the primary domain name server for site.com (forward domain translation data), and specifies that all *.site.com forms of domain name conversion data be saved in the Db.site file.
two segment primary IP data: Set named as an IP address segment (only three bits) of the conversion of the primary server (reverse domain name conversion data), and like db.127.0.0 file, is the specified 127.0.0.* class IP address to the domain name of the conversion data stored here.
Sitecache.db.sitecache: Specifies named to obtain the top-level server address of the Internet from the Db.sitecache file.
Step two: Define each DNS data file according to the named.boot you just configured.
1) The establishment of a forward domain conversion data file Db.site, example:

@ in SOA linux.site.com. root.linux.site.com. ( 
200410301
28800
7200
3600000
86400)
NS linux.site.com.
MX ten support.site.com.
Localhost A 127.0.0.1
Sy727 A 192.11.56.24
Sy728 A 192.11.56.25
Linux A 192.11.56.26
Mail MX ten sy727.site.com.
MX sy728.site.com.
www chame Linux.site.com.
ftp CNAME Linux.site.com.
Explanation: The first part of the first line of SOA is followed by the DNS server name and the Administrator e-mail address, the following columns are used in the data exchange, and generally do not make changes; the NS line defines the domain name of the domain name server itself; The MX line defines the appropriate mail server name.

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Hengyang high-Protection server renting a DNS server in Linux environment tutorial