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The purpose of this article is to share with you the reasons why computers have abnormal dns on the Internet. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Computer network dns abnormal reasons: 1, network failure, usually caused by DNS errors; 2, website failure, may be accidental blockage of the network server lines, resulting in some users can not open the web page; 3, caused by the virus.

The reason for the abnormal network dns on the computer:

1. Network failure.

It is usually caused by a DNS error.

2. Website failure.

If you just can't open a website, it may be that the server of the site fails, or the line of the web server is accidentally blocked, resulting in some users being unable to open the web page.

3. Caused by virus.

If your computer is infected with a virus, your DNS will be hijacked, such as your browser home page has been tampered with, some common web pages cannot be opened, or there will be pop-up windows, redirects, and so on.

Extended data:

DNS troubleshooting methods:

1. Verify the network connection

Log in to the DNS server and use the ping command to check the connection status to other machines. What you should also do is try to use a random machine to ping the DNS server. It is important to keep in mind that the ping command works only if Internet message Control Protocol (ICMP) packets are allowed to pass through the firewall configuration.

2. Try to use a host for ping testing

If there is a problem with the name resolution service on the local network, you should choose to try ping testing against other servers on the network. First, you can use the network IP address of the server for ping testing. In this way, you can confirm whether the server can still be connected. The next thing to do is to test the ping using the computer name and the fully qualified domain name of the server.

3. Restart the DNS server

Thank you for reading! This is the end of this article on "the reason why the computer network dns is abnormal". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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