Whats VPN ??
VPN stands for Virtual Private Network and describes the opportunity to establish a protected network connection when using public network. So the main question is how it works It does this by hiding your IP address but how, so VPN hides your IP address by lettering the network and redirecting it through a specially configured remote server by running a VPN host. This means that if you serf online with a VPN the VPN server becomes the source of your data. This means your Internet Service providers (ISP) and other third party cant see which website you visit or what data you send or receive online. A VPN works like a filter and turns all your data into "gibberish" which means that words which don't have any meaning or words that are not possible to understand .So that even if someone gets their hands on your data then it would be useless.
Mainly there are 3 types of VPNs and they are 1. SSL VPN 2. Site-to-site VPN 3. Client -to Server VPN.