By Christopher P Wakefield

Linux MintToday we will have a look at setting up a DNS server on Linux. This tutorial was configured using Linux Mint 9 but the steps are the same for any Linux distribution.

First thing to do is to install the software we need. Open up a terminal and type:

sudo apt-get install bind9

Once installed it is time for some configuring. The first file we need to configure is named.conf.local. So in the terminal type:

sudo nano /etc/bind/named.conf.local

I have used nano to open up the file but use whichever text editor you are happy with. Insert the following code into the file:

# This is the zone definition. replace with your domain name

zone “” {

type master;

file “/etc/bind/zones/”;


# This is the zone definition for reverse DNS. replace 0.168.192 with your network address in reverse notation – e.g my network address is 192.168.0

zone “” {

type master;

file “/etc/bind/zones/”;


Replace with the name of your DNS domain (this is not the same as an active directory domain but rather a name for your DNS zone).

Next up is the options file. In the terminal type:

sudo nano /etc/bind/named.conf.options

Within this file we need to modify the forwarder with the address of your ISP’s DNS servers. So modify the file adding the following:

forwarders {;;


Replace the addresses above with the addresses of your ISP’s DNS servers.

Now we need to add the zones file:

sudo mkdir /etc/bind/zones

And then configure it:

sudo nano /etc/bind/zones/ (replace with your DNS domain).

Add the following code to the file:

// replace with your domain name. do not forget the. after the domain name!

// Also, replace ns1 with the name of your DNS server IN SOA

// Do not modify the following lines!







// Replace the following line as necessary:

// ns1 = DNS Server name

// mta = mail server name

// = domain name IN NS IN MX 10

// Replace the IP address with the right IP addresses.

www IN A

mta IN A

chris-server IN A

In the above code replace the following: with your DNS domain name, with your static DNS server address, with your computers hostname.dns-domain,

mta is your mail server (if you have one). If you do modify the IP address to show this.

Next we have to create the reverse DNS zone file:

sudo nano /etc/bind/zones/

Add the following code:

//replace with yoour domain name, ns1 with your DNS server name.

// The number before IN PTR is the machine address of the DNS server

@ IN SOA (









All that is left to do is restart bind:

sudo service bind9 restart (using upstart) or sudo /etc/init.d/bind9 restart (init scripts)

Don’t forget to test the new configuration:


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