What is a DNS?

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:

• 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 IPv4;
• Click on "Automatic" to disable it and in DNS line add your adress;

• Click Apply and close window.