DNS server refers to "domain name resolution server", and domain name is what we usually call "web address". Identifying and searching for different computers on the Internet actually requires dns server settings to know the IP address of the computer to access it. For example, 220.181.38.4, this IP is one of Baidu's telecom line IP. Telecom users can directly access Baidu by entering this IP address in the address bar, and each website has one or more IP addresses. If the customer is in It is undoubtedly difficult to remember to enter these IP addresses when browsing the web. You can access the website by entering the domain name (URL) through the dns server settings.
What is the role of dns server settings?
1. The working principle of the DNS server is roughly as follows:
1. The user enters the domain name in the browser, such as http://www.baidu.com
2, after the carriage return, sent to the domain is to provide users with a DNS server in
3. This DNS server stores the IP address information corresponding to http://www.baidu.com. For example, the corresponding IP is 220.181.38.4. In this way, the DNS server will send the user's access request to 220.181.38.4 , Which is Baidu’s web server. In this way, the process of translating domain names into IP addresses is realized
Two, set up the DNS server
There are many servers in China that are responsible for translating domain names and IP addresses. Depending on the line and geographic location of users’ access to the Internet, the servers that provide DNS resolution services are also different. Here is how to know the IP of the server that provides DNS services for yourself. :
1. If you are surfing the Internet through a router, just log in to the router management interface and find the "Status" item, and you can generally see your public IP and local DNS information in it.
2. If it is ADSL direct dial-up Internet access, please do as follows:
(1) Dial-up Internet
(2) Click "Start" --- "Run", enter CMD in the run field, and then confirm
(3) In the DOS window that appears, enter ipconfig/all and press Enter
(4) At this time, you can see the IP address behind DNS SERVERS, which is your local DNS address.