DNS stand for Domain Name System. DNS or the domain name system is used to translate domain names such as www.privacyinternational.org into numerical IP addresses e.g. 123.123.123.123 which are required to route packets of data on the Internet. Whenever your computer needs to contact a server on the Internet, such as when you enter a URL into your browser, your computer contacts a DNS server and requests the IP address. Most Internet service providers assign their customers a DNS server which they control and use for logging and recording your Internet activities.
How do government block user from accessing certain website?
DNS server is very important in translating domain to numerical IP addresses. Without numerical IP addresses, user cannot reach domain server. For domain that do not exist, DNS server will reply null or no IP address. SO, THIS CONDITION CAN BE USED TO BLOCK USER FROM ACCESSING CERTAIN WEBSITE. Every Internet Service Provider (ISP) will assign their own DNS server to their customer. Every computer with default configuration will use this DNS. This DNS is under government control. So, they can block certain website from user access by not replying request for domain translation. Then it will appear that website is not exist on user's web browser. Remember, no numerical IP address no data package can be sent. However, only user that use default DNS will be affected.
How to pass government's internet censorship
Change DNS server to one that does not perform blocking or filtering of any kind such as Google Public DNS. Here are two ways on how to change DNS server.
Changing DNS server settings on Microsoft Windows 7.
- Go the Control Panel.
- Click Network and Internet, then Network and Sharing Center, and click Change adapter settings.
- Select the connection for which you want to configure Google Public DNS. For example:
- To change the settings for an Ethernet connection, right-click Local Area Connection, and click Properties.
- To change the settings for a wireless connection, right-click Wireless Network Connection, and click Properties.
- If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
- Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and then click Properties.
- Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.
- Click OK.
- Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
- Replace those addresses with the IP addresses of the Google DNS servers:
- For IPv4: 8.8.8.8 and/or 8.8.4.4.
- For IPv6: 2001:4860:4860::8888 and/or 2001:4860:4860::8844
- Restart the connection you selected in step 3.
- Test that your setup is working correctly; see Testing your new settings below.
- Repeat the procedure for additional network connections you want to change.
* The above example is taken from https://developers.google.com/speed/public-dns/docs/using
Change DNS server with Easy DNS.
- Select DNS server to use. All DNS server is public and free.
- Click "Set DNS" button. Done!
This way is recommend since it is very easy.
Software Easy DNS
Easy DNS v1.0.0.0
Change DNS server automatically with one click. There are 14 DNS server to choose.
Level3: 209.244.0.3 & 209.244.0.4
Google: 8.8.8.8 & 8.8.4.4
Securly: 184.169.143.224 & 184.169.161.155
Comodo Secure DNS: 8.26.56.26 & 8.20.247.20
OpenDNS Home: 208.67.222.222 & 208.67.220.220
DNS Advantage: 156.154.70.1 & 156.154.71.1
Norton ConnectSafe: 198.153.192.40 & 198.153.194.40
ScrubIT: 67.138.54.120 & 207.225.209.77
SafeDNS: 195.46.39.39 & 195.46.39.40
DNSResolvers.com: 205.210.42.205 & 64.68.200.200
OpenNIC: 74.207.247.4 & 64.0.55.201
Public-Root: 199.5.157.131 & 208.71.35.137
SmartViper: 208.76.50.50 & 208.76.51.51
Dyn: 216.146.35.35 & 216.146.36.36
censurfridns.dk: 89.233.43.71 & 89.104.194.142
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