DNS
DNS (Domain Name System) in Chinese means domain name resolution server, and its role on the Internet is to convert domain names into IP addresses that can be recognized by the network.
When the user enters the URL domain name in the browser, he will first access the DNS domain name resolution server set by the system (usually provided by ISP operators such as China Telecom and China Unicom). If the IP information corresponding to the domain name is stored in the server, the information is directly returned for the user to visit the website. Otherwise, the higher-level DNS will look up the corresponding data of the domain name layer by layer.
DNS naming is used in TCP/IP networks such as the Internet to find computers and services through user-friendly names. When a user enters a DNS name in the application, the DNS service can resolve this name into other information related to it, such as an IP address. This is because the URL you entered when surfing the Internet was resolved by the domain name resolution system to find the corresponding IP address so that you can surf the Internet. In fact, the final point of the domain name is the IP.
What is 8.8.8.8
As the most popular IP address of the internet the 8.8.8.8 and its alternative 8.8.4.4 is the DNS server provided by Google. These IP addresses are generally used as DNS servers in order to resolve domain names into IP addresses. Especially the 8.8.8.8 is used to prevent DNS-related website and domain name blocking which is generally limited by governments. 8.8.8.8 became so popular because it was very easy to remember as an IPv4 address because all octets are 8. Even Google provides the 8.8.4.4 IP address the easy to remember feature made 8.8.8.8 very popular. The 8.8.8.8 address provides the DNS server which is open all over the internet and there is no blocking to access and ping this IP address. It is the first choice for the ping test for internet access and connectivity.
How to modify DNS to 8.8.8.8 in the win10 system
1. Click the network icon in the taskbar-network settings;
2. Change adapter options;
3. Right-click "Local Area Connection" (or double-click and click Properties);
4. Properties-select "Protocol Version 4"-properties;
5. Select "Use the following DNS server address", enter 8.8.8.8-OK.
The network connection to the 8.8.8.8 Google DNS service can be tested with the ping command like below.
If it appears:
C:\Documents and Settings\Administrator>ping 8.8.8.8
Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=106ms TTL=47
Reply from 8.8.8.8: bytes=32 time=38ms TTL=47
Reply from 8.8.8.8: bytes=32 time=38ms TTL=47
Reply from 8.8.8.8: bytes=32 time=39ms TTL=47
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 38ms, Maximum = 106ms, Average = 55ms
That means it can be connected.
How to choose DNS reasonably
For netizens, DNS is the same as that of lighthouses and navigators. Choosing a reasonable DNS can effectively help us prevent DNS hijacking and increase Internet speed. Then, how to choose DNS reasonably?
1. Choose a local clean DNS
At present, the large and medium-sized websites in the world all use CDN for content distribution, which can ensure users' access nearby and improve the access speed. Many websites use DNS as identification.
Fortunately, many websites now guide users based on IP addresses.
2. Choose a safe, non-toxic, and free DNS.
That is all for this post, for more information about the difference between the DNS and DDNS, you might refer to DDNS vs DNS - Huawei Enterprise Support Community.
