Port 80 is open to HTTP (Hypertext Transfer Protocol), which is the most commonly used protocol for surfing the Internet and is mainly used for transmitting information on the World Wide Web. You can access the website by adding ":80" to the HTTP address (commonly known as "URL"). Because the default port number of the web browsing service is 80, you only need to enter the URL instead of ":80".

Therefore, when building a website, you want to enter the URL directly, instead of the port number.

However, when using Alibaba Cloud, it was found that port 80 was occupied. Through lsof -i:80, it was found that the port was occupied by a man named Ali Yundun.

Then through the search, it was found that Alibaba Cloud Shield did not occupy port 80, but carried out a layer of protection and protection request.

Therefore, if you want to use it, you need to file it, but because the website uses it. Org suffix, and Alibaba Cloud said the suffix can't be filed.

Even if the mapping is successful, the server previously purchased in Alibaba Cloud is made in China and cannot be accessed.

Because what I see is

Www.xxx.org, as long as you visit this address, you will be prompted to put on record.

Although there are many on the Internet, there are ways on csdn to teach you how to switch port 80 to another port (8080).

But I think it's useless, because

If your website is registered, you can use port 80 directly. If it is not registered, you can't visit your website www.xxx.org without adding a port number after the change.

Or, if you want to build a personal blog, I suggest that you can use a foreign server without filing.

Some better links.