CentOS7.4 configure DNS server

1. Install the bind package

Yum install-y bind*

two。 Path index of each profile

/ etc/named.conf # main configuration file / var/named/ # parsing database file directory / etc/named.rfc1912.zones # default parsing area file

3. Modification of the main configuration file

# the following changes are just the changes I made to vim / etc/named.conf options {# listen-on port 53 {127.0.0.1;}; comment out the line indicating that listening on port 53 is enabled on all interfaces IP # listen-on-v6 port 53 {:: 1;}; turn off the listening directory "/ var/named" of IPv6 Dump-file "/ var/named/data/cache_dump.db"; statistics-file "/ var/named/data/named_stats.txt"; memstatistics-file "/ var/named/data/named_mem_stats.txt"; recursing-file "/ var/named/data/named.recursing"; secroots-file "/ var/named/data/named.secroots"; # allow-query {localhost;} DNS queries are allowed for all hosts. By default, local queries are only allowed for zone "example.com" IN {type master; file "example.com.zone". # if the absolute path is not added, the default will treat the configuration file as in the / var/named directory}; # include "/ etc/named.rfc1912.zones"; comment out the line include "/ etc/named.root.key"

4. Create a database file

Cd / var/named/ cp named.localhost example.com.zone # creates a vim example.com.zone $TTL 1D@IN SOAexample.com dns.example.com through the default zone file. (0; serial 1D; refresh 1H; retry 1W; expire 3H); minimum @ INNSdns.example.com. DnsINA172.16.104.123wwwINA172.16.104.123

5. Restart the test

Systemctl restart named [root@localhost named] # systemctl status named # check the status cat / etc/resolv.conf # determine the DNS address # Generated by NetworkManager nameserver 172.16.104.123 [root@localhost ~] # nslookup www.example.com Server:172.16.104.123 Address:172.16.104.123#53 Name:www.example.com Address:172.16.104.123