Shulou(Shulou.com)06/02 Report--

Why does the CVM have private network ip? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

The ip address of the intranet is the local area network, and the computers in the intranet access the Internet through a public gateway using the NAT (Network address Translation) protocol.

The private network IP of CVM can be the same in different Lans, and the private network ip cannot be used for domain name resolution. It cannot be used for remote login of CVM directly. Its main function is to communicate with other machines in the same cluster under the current account.

Computers on the intranet can send connection requests to other computers on the Internet, but other computers on the Internet cannot send connection requests to computers on the intranet.

Some small businesses or schools usually apply for a fixed IP address and then use the entire company or school machine to access the Internet through IP sharing (IP Sharing). The IP address used by the machines of these enterprises or schools is the intranet IP. When planning the IPv4 protocol, the intranet IP specially designed a private IP address (or reserved address) for the intranet taking into account the possible shortage of IP address resources.

Currently, the IP needed in the CVM uses the public network IP provided by the cloud service provider, including domain name resolution, remote login, APP configuration and so on.

What we usually call the IP address actually refers to the public network IP. Each computer on the Internet has a separate IP address that uniquely identifies a computer on the Internet. The IP address here refers to the public network IP address.

The private network IP in the CVM can only be used in the private network, while the public network IP can be used through the Internet.

Usually the private IP address is used in the intranet IP, the most common is the 192.168.1.0 network segment, which is typical of IP that cannot be used on the Internet, but can be used for LAN communication. The external network IP requires that it be a non-private address and not be occupied.

This is the answer to the question about why the CVM has private network ip. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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