VPN ?​?​?, global vpn, accelerator,English(5MB) description

?​?​?VPN is a Virtual private Network

It ensures:

* users connectivity to geo-restricted websites
* complete anonymity for establishing fool-proof security
* provide the fastest speed and uninterrupted streaming of their favorite content.
It mainly depends on the selection of VPN service.

Free VPN are not secure as they are unable to provide you high-end security features

VPN customers have to look for these features when selecting the most secure VPN provider for them.

For example:VPNs help enable users working at home, on the road, or at a branch office to connect in a secure fashion to a remote corporate server using the Internet. From the users perspective, the VPN is a point-to-point connection between the user's computer and a corporate server.


Technically, shadowsocks has nothing to do with VPN. It's not a VPN, it's a proxy. VPN is a virtual network interface which you can send everything through it. Proxy is a server used to forward data to another. There are two mainly difference between them.

1. To use a proxy, you had to let program know there is a proxy. But you don't have to config programs to use VPN.

For example. When you use shadowsocks, you should config your browser (like firefox) to use proxy. After that, the proxy only work for this program. Proxy will never work automatically with all programs in the system. But with VPN, you run the VPN inside the system, and all programs work with it.

2. You can transfer any kind of data through VPN. With proxy, only TCP can be delivered. (actually, in some version of shadowsocks, UDP also works)

For example, NTP is a famous protocol used to synchronous time between servers. Unfortunately, it's based on UDP, so NTP can't go through shadowsocks. So does the DNS. With VPN, it will goes alright.

Most of time, We access internet by browser. Shadowsocks can handle those situation very well. So most of time, You don't have to notice the different between them.


A true VPN does not change the IP address it simply provides an encrypted/secure link between its two end points. If one of those endpoints is a proxy server, then a target site will see the address of the proxy and not the initiating computer.

Depending upon how secure the computer is, and exactly how the VPN intercepts packets so that they use the secure connection, it might not be possible to bypass the VPN/Proxy pair to see what addresses are involved in that specific link.

Sites that block proxies or VPN/proxies can identify potential candidates if they see a lot of simultaneous connections all apparently coming from the same address. This has to be a substantial number as a home router is effectively a proxy server hiding the individual computer IP addresses from the Internet, and three people legitimately watching Netflix from the same home router must not trigger a block.