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==DNS definition==
'''DNS''' or '''Domain Name System''' is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. 
Each device, connected to the internet have unique IP address, like 192.168.1.1 (IPv4) or 2001:db8:3333:4444:5555:6666:7777:8888 (IPv6), which help to identify device on a network. For humans is hard to memorize all these sequences of numbers and in this case helps DNS, which translates human readable webpage names, e.g., google.com, to computer friendly IP addresses. 
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==How to set DNS on computer==
===Windows===
If you want to change DNS to custom, please, follow these steps:
*Go to '''Control Panel;'''
*Click on '''Network and Internet;'''
*Go to "Network and Sharing Center" and press on '''Change adapter settings''';
*In a new window select your current network, press on it right mouse button (or double click it) and select press on '''Properties''';
*Click on '''Internet protocol Version 4 (TCP/IPv4)''' and select '''Properties;'''

*If '''Obtain DNS server adress automativally''' is enabled, click on the '''Use the followings DNS server addressess:''' 

[[File:DNS settings.jpg]]

*Enter the DNS you want to use

*Click '''OK''' and close.

===Linux (Ubuntu)===
If you want to change DNS to custom, please, follow these steps:

* Press on the top right corner on network symbol;
* Click on '''Settings''';
* Press a cogwheel in your network line;
* Navigate to I'''Pv4''';

* Click on "'''Automatic'''" to disable it and in '''DNS''' line add your adress;

[[File:DNS on Ubuntu.jpg|481x481px]]

* Click '''Apply''' and close window.