How to find DNS IP address from Your PC

DNS is key to many network services. Internet browsing, mail server, web server etc all depends upon DNS server. Most ISP (Internet service provider) have their own caching dns server to reduce network load. But how do you find out DNS server IP address? How do you find out current DNS server IP address? Under Linux, FreeBSD and all UNIX like oses you have file called /etc/resolv.conf file. It is often know as resolver configuration file. If you are using MS-Windows version Vista / 7 / NT / 2000 / XP /98 etc then see below for how to find out DNS server address under MS-Windows operating systems.

Linux / UNIX / Apple OS X Find Out Dns Server Addresses

The resolver is a set of routines in the C library that provide access to the Internet Domain Name System (DNS). The resolver configuration file contains information that is read by the resolver routines the first time they are invoked by a process.

Commend to find out your dns servers ip address under Linux/BSD/Unixish system

To see your DNS server address type following command as shell prompt:
$ cat /etc/resolv.conf
OR
$ less /etc/resolv.conf

nameserver 203.54.1.20
nameserver 203.54.1.21

Where,

nameserver 203.54.1.20 : It is Name server IP address (in dot notation) of a name server that the resolver should query. All your application will use this IP address for DNS purpose.

Find Out DNS Server IP Address Under MS-Windows Version 7/Vista/XP/NT/2003

Click on Start button > Run > and Type command cmd > Press [enter] key

At DOS prompt type the command:
C:\>ipconfig /all
You should DNS server IP address, and other information related to Windows networking:

Fig.01: Windows Operating Systems Find DNS Server Addresses

(click to enlarge)
OR

You can Click on Start button > Settings > Network connections
Double click on Local Area Connection
Click on Properties button
Select Internet Protocol (TCP/IP)
Click on Properties button and Look for Preferred DNS Server:

Fig.02: Windows XP TCP/IP Properties - DNS Settings And IP Address

You Can Use The Public DNS Servers

You can use the following Google public DNS (IP Addresses) servers for XBOX 360 / Sony PS3 & PS2 / Nintendo Wii game consoles or any other purpose:

8.8.8.8
8.8.4.4

They are free to all, pretty fast too and works with all sort of computers and game consoles.