VPS is the abbreviation of virtual private server, a simple understanding is a server is divided into many, of course, the “points” here does not mean cut into several halves, but the use of some technical means, so that multiple users can share this server.
Usually, the cost of renting a server is relatively high, and for users, a server’s CPU count, memory, disk space is most of the time excess, which is very wasteful of resources, and used to bear a higher price. If you buy a VPS, the price is much more cost effective and you are using the same server with multiple other users, sharing the cost between you. Of course you don’t have to worry about conflicts with other users, these problems have been well solved by virtualisation technology.
Whether you are an individual or a small or medium sized business, VPS is the way to go. You don’t need to hire someone to maintain the server, and you don’t waste resources, so if you think it’s too expensive, you can lower the configuration, and if you think you don’t have enough resources, you can upgrade it.
A VPN is a pipe through which all your internet data is transmitted, only it is virtual. There are a few more nuanced terms or knowledge points about VPNs
Now, what is the VPN protocol, in fact, the protocol is a rule, your computer and the VPN server must follow this rule, in order to ensure that the data is properly accepted and sent, of course, there can be many kinds of rules, and VPN is just one of them.
The encryption about VPN is relatively well understood, it is the encryption of your data to prevent it from being stolen by intermediaries. Initially, by encrypting in this way, you can get around the Great Firewall very well, but everything has its weaknesses. Ordinary VPN protocols are easily detected by the Great Firewall because of their obvious traffic characteristics. For this reason many quality VPN service providers, on top of the original added obfuscation for camouflage, so that it is used in China to go over the wall very well, can be simply understood as, will VPN this with the pipeline painted camouflage, not easy to be found.