Shulou(Shulou.com)06/01 Report--

This article introduces how to configure the DNS server in Ubuntu, the content is very detailed, interested friends can refer to, hope to be helpful to you.

DNS (Domain Name Server, domain name server) is a server that translates domain names (domain name) and corresponding IP addresses (IP address).

Environment description

Server IP 10.68.19.61

Operating system Ubuntu 13.04

DNS program Bind9

Test the domain name mycloud.com

Target IP 10.68.19.134

Install and configure BIND9

Apt-get install bind9

A total of 2 files need to be edited and 2 new files need to be added, as follows: modify / etc/bind/named.conf.options, remove the comments from forwarders, where IP is the DNS server provided by network operators, here we use google's DNS.

Forwarders {8.8.8; 8.8.4.4;}

Modify / etc/bind/named.conf.local and add two-way parsing code at the end:

Zone "mycloud.com" {type master; file "/ etc/bind/db.mycloud.com";}; zone "19.68.10.in-addr.arpa" {type master; file "/ etc/bind/db.10.68.19";}

Note: where 19.68.10 is the first three segments of the destination IP10.68.19.134, indicating an IP address field.

Add the domain name (mycloud.com) resolution file / etc/bind/db.mycloud.com, which is as follows:

; BIND data file for dev sites; $TTL 604800 @ IN SOA mycloud.com. Root.mycloud.com. (1; Serial 604800; Refresh 86400; Retry 2419200; Expire 604800); Negative Cache TTL; @ IN NS mycloud.com. @ IN A 10.68.19.134 * .mycloud.com. 14400 IN A 10.68.19.134

A new IP address reverse resolution file / etc/bind/db.10.68.19 is added as follows:

; BIND reverse data file for dev domains; $TTL 604800 @ IN SOA dev. Root.dev. (1; Serial 604800; Refresh 86400; Retry 2419200; Expire 604800); Negative Cache TTL; @ IN NS mycloud.com. 134 IN PTR mycloud.com.

Restart the BIND9 service

Service bind9 restart

Modify native configuration

Modify the dns configuration file of each DNS server that needs to be used

Sudo vi / etc/resolv.conf

Modify nameserver to the DNS server IP configured above

Nameserver 10.68.19.61

This modification will be overwritten every time the server is restarted, and the configuration file can be modified.

Sudo vi / etc/resolvconf/resolv.conf.d/base

Add an item to it

Nameserver 10.68.19.61

In this way, the DNS configuration is still valid after restarting the server, and then restart the networking service to refresh the DNS cache.

Service networking restart

Test effect

Root@controller:/etc/bind# nslookup > baidu.com Server: 10.68.19.61 Address: 10.68.19.61 Non-authoritative answer: Name: baidu.com Address: 220.181.111.86 Name: baidu.com Address: 123.125.114.144 Name: baidu.com Address: 220.181.111.85 > mycloud.com Server: 10.68.19.61 Address: 10.68. 19.61 to 53 Name: mycloud.com Address: 10.68.19.134 > uaa.mycloud.com Server: 10.68.19.61 Address: 10.68.19.61 to 53 Name: uaa.mycloud.com Address: 10.68.19.134 on how to configure the DNS server in Ubuntu, that's all. I hope the above content can be of some help to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.