Both proxy IP and VPN help you get the information you want through a remote server, but proxy IP helps you retrieve the information and then transmit it to you, and it seems that the information will not be encrypting. VPN, on the other hand, helps you establish a dedicated channel between you and the information database you want to query, and all content transmitted in this channel is encrypted.
Some netizens said that a proxy IP is when you are in a network, and then you can access information on networks outside this network through a proxy IP; a VPN is when you are in a network outside of a network, but if you want to access information on that network, you use a VPN.
A proxy can also mean that you can access the information you want, but you want to use the proxy server to help you get the information, or you don't want others to know the IP of the person who gets the information; while a VPN means that you can't access the information you want, so you can only use the VPN server to help you establish a privileged channel, so that you have the right to access that information. A proxy IP can increase your download speed for a certain file or even your entire Internet speed, but a VPN should not work or is generally not used for this purpose.
But when you actually use them, there is no obvious difference between the two. It's like you use a proxy in China to help you get foreign information, and you use VPN in China to establish a dedicated channel with a foreign information database or private network. When you check your IP on Baidu, you will find that your IP has changed. This is my understanding after reading the information on the Internet. I don't know if it's right. If you find that I'm wrong, please tell me.
IP is just an address. VPN is a dedicated virtual network. The so-called proxy IP is just to connect your network to an intranet and use an external IP as a proxy to bypass the firewall. The IP proxy is a virtual intranet built with a foreign server. Whether it is encrypted or not depends on the willingness of the VPN provider or the service is just for breaking through to the website (such as adsense, etc.). This is how I understand it. The connection has always been on the line of local machine-server-network.
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