VPN is brief for Virtual Private Network and is really a technologies that creates an encrypted secure connection over a much less safe network just like the Internet. The advantage is the fact that it offers the security that the network on which it truly is primarily based can't supply. It uses the internet to transport information. Numerous such networks is usually made by using different systems incorporating encryption along with other security mechanisms to ensure that only authorized customers can access the network and details can't be intercepted by the other folks. It really is like a tunnel built to transmit information in between a network of say an organization plus a remote user. It hides your information and IP address. Get extra info about en savoir plus
VPN Protocols
The main VPN network protocols are:
IPSec - Developed by the Internet Engineering Process Force, to safe exchanges of data at the IP layer. It is actually extensively used for creating VPNs
PPTP- Point to Point Tunneling Protocol for VPNs created jointly by Microsoft, US Robotics and many remote access vendor companies. It is actually now obsolete mainly because of security issues
L2TP - Layer 2 Tunneling Protocol is definitely an extension with the PPP Protocol (PPP, which establishes connectivity among 2 nodes or computers) L2TP permits ISPs to operate VPNs
SSL - Safe Sockets Layer could be the normally used one these days which is often used having a common web browser. Unlike IPSec, it will not require installation of specialized client software around the end user's pc.
Benefits of VPN
· Security and prevention of information theft
· Uncensored Internet access
· Unblocking ability for sites
· Maintaining away information trackers by keeping your browsing history private
· Supports common p2p protocol like BitTorrent
Drawbacks of VPN
VPN slows down your internet. The factors affecting the speed would be the number of people using the VPN and the geographical place.
Who uses it?
It is actually used on an individual level - Customers use a private VPN service or tunnel to protect their identity and online activity. This is specially relevant when we use public wifi which could not be safe. You can use anonymous VPNs, which serves as a privacy buffer between you and your Internet Service Provider, who otherwise has access to your internet usage patterns. VPNs are used extensively by BitTorrent customers.
Corporates use it to communicate in confidentiality video, voice or data over a public network. It can be also a great option when employees are scattered all more than the globe. VPNs enable connects global offices. Corporates either use a VPDN which assists connect to a company LAN by way of dial up or site-to-site- VPN where devoted hardware is also used to connect many sites towards the company LAN.
How many countries support VPNs?
114 nations within the world offer VPN networks.
Just how much does it price?
It charges less than ten dollars per month, ranging from 4 to seven dollars monthly.
What is free VPN
VPN that doesn't price you something up front. Most free VPN services supply only PPTP which can be regarded obsolete. Also, because it is free, there is going to be a huge number of users logging in resulting in lack of bandwidth for all. Bandwidth which has to be purchased is often afforded by paid VPN services who use their earnings to purchase extra bandwidth.