The purpose of peanut shell software is to build a website server under dynamic ip. Principle: Match the domain name you applied for in the peanut shell with your ip address (even if it is dynamic), that is, when someone accesses the domain name, the peanut shell will be converted into an ip address in time to achieve the purpose of access.

Now, as far as I know, to answer you:

1 and 2 problems: more stable payment and better service;

3 problem: only the host as a server can install peanut shells;

4. This domain name (or ip) can be accessed by all machines on the network (whether local area network or Internet);

5.6 Q: Data synchronization is required by software and has nothing to do with peanut shells. Just like we change qq password, I change-upload notification-Tencent server at home, and its speed is related to the bandwidth of my home, the bandwidth of my computer and Tencent and the speed of the server.

As for how much bandwidth you need, it depends on the purpose and traffic of your server. (If the text is small, the images and videos are large)