VPN is short for Virtual Private Network and is a technology that creates an encrypted secure connection over a less secure network just like the Internet. The benefit is that it provides the security that the network which it is based cannot provide. It uses the internet to transport data. Many such networks could be created by using different systems incorporating encryption along with other security mechanisms to make sure that only authorized users can access the network and information can’t be intercepted by the others. It really is like a tunnel built to transmit data between a network of say a business and a remote user. It hides your data and IP address.
VPN Protocols
The primary VPN network protocols are:
IPSec – Developed by the Internet Engineering Task Force, to secure exchanges of data at the IP layer. regarder la f1 sur internet is widely used for creating VPNs
PPTP- Point to Point Tunneling Protocol for VPNs developed jointly by Microsoft, US Robotics and many remote access vendor companies. It really is now obsolete due to security concerns
L2TP – Layer 2 Tunneling Protocol can be an extension of the PPP Protocol (PPP, which establishes connectivity between 2 nodes or computers) L2TP allows ISPs to use VPNs
SSL – Secure Sockets Layer is the commonly used one nowadays and this can be used with a standard browser. Unlike IPSec, it generally does not require installation of specialized client software on the end user’s computer.
Benefits of VPN
� Security and prevention of data theft
� Uncensored Internet access
� Unblocking ability for sites
� Keeping away data trackers by maintaining your browsing history private
� Supports popular p2p protocol like BitTorrent
Drawbacks of VPN
VPN slows down your internet. The factors affecting the speed are the number of people using the VPN and the geographical location.
Who uses it?
It is used on an individual level – Consumers use a private VPN service or tunnel to protect their identity and online activity. This is especially relevant whenever we use public wifi which might not be secure. You can utilize anonymous VPNs, which serves as a privacy buffer between you and your Internet Service Provider, who otherwise has access to your web usage patterns. VPNs are used extensively by BitTorrent users.
Corporates utilize it to communicate in confidentiality video, voice or data over a public network. Additionally it is an excellent option when employees are scattered all over the globe. VPNs help connects global offices. Corporates either work with a VPDN which helps connect to an organization LAN through dial up or site-to-site- VPN where dedicated hardware is also used to connect multiple sites to the business LAN.
Just how many countries support VPNs?
114 countries on the planet provide VPN networks.
How much does it cost?
It costs significantly less than ten dollars per month, which range from four to seven dollars per month.
What is free VPN
VPN that does not set you back anything up front. Most free VPN services offer only PPTP which is considered obsolete. Also, because it is free, there will be thousands of users logging in resulting in lack of bandwidth for several. Bandwidth which has to be bought can be afforded by paid VPN services who use their profits to purchase more ba