How can I modify the dns of win7 system? Detailed explanation of dns settings on Windows 7

What is DNS

DNS (Domain Name System) is a distributed database that maps Domain names and IP addresses on the Internet, allowing users to access the Internet more conveniently, instead of remembering the number of IP address strings that can be directly read by machines. The process of obtaining the IP address corresponding to the host name through the host name is called domain name resolution (or host name resolution ). The DNS protocol runs on the UDP protocol and uses the port number 53. In the RFC documentation, RFC 2181 provides a standard description of DNS, RFC 2136 describes the dynamic update of DNS, and RFC 2308 describes the reverse cache of DNS queries.

How to modify dns settings on Windows 7

1. Click the network connection icon in the desktop taskbar and then click "Network and Sharing Center"

2. Then, click Change adapter settings, as shown in the following figure.

3. Click local connection and select Properties. The effect is as follows:

4. Select "Internet Protocol version 4 (TCP/IPv4)"-"properties" under the network card, as shown in the following figure.

5. Select [use the following DNS server address] from the regular tab and enter 8.8.8.8 in [preferred DNS server].

Almost all windows systems can modify the IP address of the dns server. If you do not know, you can set 8.8.8 and 114.114.114.114 to access the internet. Of course, you can also automatically obtain this dns.