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When you encounter a problem with DNS, you may change DNS settings in order to fix this problem.
The DNS service is used to establish a correspondence between a domain and IP address of the server that hosts the requested domain. So, when you enter a web address in your browser, a request is sent to the DNS server of your ISP which, in turn, sends you the IP address of the website requested.
Normally, this operation is instantaneous and requires no manual manipulation. You will, however, need to change your DNS manually or select custom DNS in the event of failure of your ISP's DNS to solve a connection problem.
How to change DNS in Windows?
The DNS should be modified in the TCP/IP properties of your network card. Depending on your Windows system, you can access TCP/IP properties by a variety of ways:
- Windows XP: Start menu / Control Panel / Network and Internet Connections / Network Connections
- Windows 7: Start menu / Control Panel / Network and Sharing Center/ Change adapter settings
Below, we will show you how to do manipulation under Windows 7:
Make a right-click on your connection and then click "properties". In the example below, it is a wired connection (LAN connection):
Select "Internet Protocol TCP/IP" then click the button "Properties"
We notice that by default the DNS are obtained automatically, check the "Use the following DNS server addresses" in order to insert DNS manually. Add any DNS servers of your choice and click OK.
The DNS for Internet Access Providers:
By default, the DNS you use are those of your ISP (Internet Service Provider) but other services can provide you with DNS that you may use. Here are some DNS provided by some trusted companies:
Google DNS: Google, recently, introduced its own Public DNS service: Click here to see how to use Google DNS.