What is DNS pollution? DNS pollution refers to some domain name server data packets that can be manufactured or unintentionally manufactured, pointing the domain name to an incorrect IP address. For many novice webmasters, DNS pollution and domain name resolution errors are really a headache. Therefore, in the face of more and more serious DNS pollution, we need to know how to detect and deal with this situation. What are the methods to verify and solve DNS pollution? Today, Micron Network will take you to understand.

First, we need to know how to check whether it is polluted by DNS. The specific steps are as follows:

1. Click "Start" in the lower left corner of the computer, click "Run", enter cmd in the pop-up run box, and then enter the ip config/all command. The DNS server IP you applied can be found in "DNSSERVER".

2. Enter nslookup xxxx.com (your website domain name) your DNS server IP to check whether it can be resolved.

3. Enter nslookup xxxx.com8.8.8.8 to run Google's DNS server verification.

How to deal with DNS pollution of website domain name? Micronet believes that hosting can effectively solve the following problems:

1. Change the DNS resolution server.

Generally speaking, domain name service providers will provide free DNS resolution services, so it is OK to replace another DNS network server.

2. Use the third-party DNS resolution service.

Now there are many third-party websites that provide DNS resolution services, many of which are free, and there are also free DNS resolution services in China. Using third-party DNS services can basically solve many problems.

FAQ 1: When using a third-party resolution service, you should first go to the resolution service provider to resolve the domain name. After resolving the domain name, you should wait a few hours to go to the domain name service provider to change the DNS network server. This practice can prevent the blog from having a blank period problem due to resolution.

FAQ 2: The domain name of the website itself is polluted by DNS. Even if you hang up VPN, you can't access it. You can only access it by changing the DNS on your computer (for example, to 8.8.8.8 of Google).

3. Build your own DNS server.

This is safe, but it also takes a long time and money.

The above is the verification and solution analysis of the DNS pollution of the Micronet. I believe you will have a corresponding understanding of it after reading this article. DNS pollution is because some operators operate DNS for some purposes, or some countries or regions use DNS pollution to prevent websites from being visited for some purposes. In addition, there is DNS hijacking. DNS hijacking can be solved by switching the system's DNS settings to the IP address of a foreign DNS server. I hope the above content will help you solve DNS pollution and DNS hijacking.