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Today, I will talk to you about how many level 2 domain names can be resolved by a domain name, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

Theoretically, one domain name can resolve countless second-level domain names. A level 2 domain name, commonly known as a subdomain name, is a domain that belongs to a higher level of domain name system. For example, www.yisu.com is the second-level domain name of yisu.com.

When we register a domain name, we register a first-level domain name, such as yisu.com. Then, we can use this first-level domain name to build different second-level domain names, such as www.yisu.com, club.yisu.com and so on.

In fact, if you want to understand the difference between first-level domain name, second-level domain name and subdomain name, it is very simple that there is a "." Is the first-level domain name.

There are two "." Is the second-level domain name, there are three "." Is the third-level domain name, and so on, while the second-level and above domain names are subdomains.

So how to resolve the first-level domain name to the second-level domain name?

When we do domain name resolution, we usually only set WWW and @ resolution records. If level 2 domain name resolution is required, add the secondary domain name to the record, such as www.yisu.com, and we need to add the name news to the rule. When we need what type of secondary domain name, we only need to resolve it.

Not all servers can support second-level domain names, so when we need to set second-level domain names, we need to consult our server provider for confirmation, because some virtual hosts do not support second-level domain name binding. This can also be seen when we purchase servers, and each server vendor has comments.

CVM can be bound with a normal second-level domain name, and different server systems have different binding rules. When purchasing, communicate with the cloud service provider to make sure.

After reading the above, do you have any further understanding of how many level 2 domain names can be resolved by a domain name? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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