When I was working on the project, Zr said peanuthull ddns was used. I asked her what she was doing. She said a lot and didn't understand it.
I went back to the Internet and looked at what passports and things I needed. It was very troublesome and I didn't care about it.
I mentioned it again today because the IP address of my computer has changed, and then the service cannot be started. I thought of the peanut shell and used it.
I registered my passport online and gave me a free Domain Name. Then I realized that the free domain name could automatically resolve the IP address of my current computer. When the IP address of my computer changes,
You can use this domain name to automatically detect the current IP address.
Is there any danger? Don't know
However, this can only detect the IP address of the router. If my computer is on the Intranet, for example, 192.168 .... It cannot be parsed. This is why the server must
Select a public IP address. Otherwise, how can someone access you.
I also understand that the reserved address is the so-called private address. I used to think that this address is used only for the network segment where your Internet address is located. Today I understand that it is okay.
For example, if you have a network cable, connect two computers, and set it to a reserved address, you can set it to communicate.
Generally, a router rejects requests from others, but you can send a router, such as accessing the Internet. You send it, and someone else returns data to you.
This certainly involves a lot of knowledge. This is not clear.