VPN is short for Virtual Private Network and is really a technology that creates an encrypted secure connection over a less secure network like the Internet. The benefit is that it offers the security that the network which it is based cannot provide. It uses the web to transport data. Many such networks can be developed by using different systems incorporating encryption along with other security mechanisms to make certain only authorized users can access the network and information cannot be intercepted by the others. It really is like a tunnel created to transmit data between a network of say an organization and a remote user. It hides your computer data and IP address.
VPN Protocols
The main VPN network protocols are:
IPSec – Developed by the Internet Engineering Task Force, to secure exchanges of data at the IP layer. se formel 1 is widely used for creating VPNs
PPTP- Indicate Point Tunneling Protocol for VPNs developed jointly by Microsoft, US Robotics and several remote access vendor companies. It is now obsolete due to security concerns
L2TP – Layer 2 Tunneling Protocol is 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 may be the commonly used one nowadays which is often used with a standard browser. Unlike IPSec, it generally does not require installing specialized client software on the finish 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 web. 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 work with a private VPN service or tunnel to safeguard their identity and online activity. That is especially relevant whenever we use public wifi which might not be secure. You should use anonymous VPNs, which serves as a privacy buffer between you and your ONLINE SITES Provider, who otherwise has usage of your internet 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 use 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.
How many countries support VPNs?
114 countries on the planet provide VPN networks.
Just how much does it cost?
It costs less than ten dollars per month, ranging from four to seven dollars monthly.
What is free VPN
VPN that does not cost you anything up front. Most free VPN services offer only PPTP which is considered obsolete. Also, since it is free, you will have thousands of users logging in leading to lack of bandwidth for all. Bandwidth which has to be bought can be afforded by paid VPN services who use their profits to purchase more ba