VPN is short for Virtual Private Network and is 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 on which it really is based cannot provide. It uses the internet to move data. Many such networks could 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 can’t be intercepted by the others. It 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 main VPN network protocols are:
IPSec – Developed by the Internet Engineering Task Force, to secure exchanges of data at the IP layer. It really is trusted 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 because of 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 operate VPNs
SSL – Secure Sockets Layer may be the commonly used one nowadays that can be used with a standard browser. Unlike IPSec, it does not require installing 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 safeguard their identity and online activity. This is especially relevant when we use public wifi which might not be secure. You should use anonymous VPNs, which serves as a privacy buffer between you and your Internet Service Provider, who otherwise has usage of your web usage patterns. VPNs are employed extensively by BitTorrent users.
the photostick 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 hook up to an organization LAN through dial up or site-to-site- VPN where dedicated hardware is also used for connecting multiple sites to the company LAN.
How many countries support VPNs?
114 countries in the world provide VPN networks.
Just how much does it cost?
It costs less than ten dollars per month, which range from four to seven dollars monthly.
What is free VPN
VPN that does not set you back anything up front. Most free VPN services offer only PPTP that is considered obsolete. Also, since it is free, you will have thousands of users logging in resulting in lack of bandwidth for several. Bandwidth which includes to be bought can be afforded by paid VPN services who use their profits to purchase more ba