Deploying and Tuning 3.1 DNS installation configuration-1

Installing the Configure DNS server

Install a bind, first search.

Yum List |grep bind

bind.x86_64 we install this

Installation

Yum Install Bind.x86_64-y

Look at his configuration file.

Vim/etc/named.conf

{
Listen-on Port 53 {127.0.0.1;}; The listening port is 53, the IP that defines the listening 53 port is the 127.0.0.1 loopback IP

Listen-on-v6 Port 53 {:: 1;}; IP V6.

Directory "/var/named"; Directory for child configuration files

File "Data/named.run"; Error log file

. is the root domain

File "named.ca"; The root domain file specifies where the server is,

Take a look at the other configuration files

CAT/var/named/named.localhost

Domain corresponding to localhost

A record 127.0.0.1 can also be obtained by/etc/host query

$TTL 1D is a 1-day life cycle that loses contact with the Lord and expires after a day.

@ domain name: localhost. Records for SOA-authorized servers:  @ localhost hostname ... Rname.invalid. Administrator's mailbox

0; Serial serial Number

1D Refresh, refresh from every interval,

1H; Retry different from the main, retry, time 1 hours

1W ; expire expiration time, 1 weeks

3H) minimum if TTL 1D is not defined, press 3H to execute

NS @ NS record is localhost

A 127.0.0.1 a record should be preceded by a string such as: 123.localhost if it's empty.

AAA:: 1 ipv6

Start the DNS server

/etc/init.d/named start

Test, and can be followed by other DNS such as 8.8.8.8

Dig @127.0. 0.1 localhost

Inverse parsing

CAT/var/named/named.loopback

One more line at the bottom.

PTR localhost This is the inverse parsing

Test

Dig @127.0. 0.1 -x  127.0.  0.1

Deploying and Tuning 3.1 DNS installation configuration-1