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Hello everyone, Lin Fei to answer the above questions, dns server failure handling methods, dns server failure many people do not know, now let's take a look at it!

What is the cause of the DNS error?

DNS is an acronym for domain name system and consists of a parser and a domain name server. A domain name server is a server that stores the domain names and corresponding IP addresses of all hosts in the network, and has the function of converting domain names into IP addresses. The domain name must correspond to an IP address, and the IP address does not necessarily have a domain name.

In fact, we usually visit websites such as Baidu, so we type www.baidu.com in the browser, and then through the network, through the parser and domain name server translation, we successfully access Baidu's real IP address, 220.181.111.85. So we can also see from here that if the DNS error or setting error, then we will not be able to access the page smoothly enough, even if occasionally, the opening speed is extremely slow. The setting DNS mentioned in this experience is to set the IP address of the DNS server.

There are many reasons for dns errors, but they are mainly caused by the following reasons. You can use exclusion.

1. Computer virus

If the virus in the computer is generally malware tampering with the user's home page, hijacking the computer's dns and so on. It will cause the computer to jump to another malicious website when it opens a well-known website, or the website won't open at all.

Solution: use antivirus software to conduct a comprehensive scan of the computer to see if there is a virus in the computer, there are no tips related to antivirus software. If the web page can still be opened after antivirus, it is mostly caused by the virus.

two。 Website failure

It is found that some websites will have a dns error when they open, but some large websites will open normally, mostly because of the failure of the website domain name server or the website server. In addition, there is also a situation of network service providers (such as telecommunications network service server failure, there will be a similar situation, mainly line congestion, it is common is a local regional website, which is regional. In general, this rarely happens.

Solution: because it is the problem of the website itself, we generally can't solve it. Only when the website is back to normal can we visit it.

3. Network malfunction

Network failure is a common cause of DNS errors, because there is no network, there is often a similar prompt when you open a web page.

Solution: just fix the network problem.

4. The computer dns setting is incorrect.

Although most of our friends do not set up dns when they surf the Internet, they usually use automatic access. However, many Lans require fixed IP addresses. If we choose a fixed IP address, we need to enter the dns address. But the wrong dns input will cause the web page to fail to open. The reason is as mentioned above. I believe everyone will understand that if dns is set up incorrectly, we will find one: QQ can be accessed but the web page cannot be opened.

Solution: go to Network neighbor-Local connection and right-click to select Properties. In Connect using the following items, look for the (TCP/IP) option and double-click it. There will be a DNS option at the bottom. In this case, you can try to get the DNS automatically. Because the dns IP is usually different in different regions, if the automatic acquisition fails, you can contact the local network management department to query dns to fill in, or you can search the local network on the Internet.

Generally, fill in the above dns server address correctly to open the web page. In general, our computer chooses to automatically obtain the IP assigned by the router and the DNS of the Internet service provider. However, because you need to fix the IP to solve the problem that the local connection starts slowly when the computer is powered on, you need to set up DNS. Friends are advised to ask the Internet provider for an address. General online search is also possible.

Generally, there are four reasons for dns errors. If you are sure that the computer network is normal, for example, other computers can access the Internet, but your own can not, then try to reset dns or antivirus to solve the problem. If it still doesn't work, it is recommended to reinstall or restore the system, which can generally be solved.

The above is an introduction to what caused the DNS error. I hope it will help you!

At the end of this article, I hope it will be helpful to you.

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