VPN abbreviation refers to a service provider that offers virtual private networks to its users that permits a user to connect to a private network across the Internet securely and privately. It enables users to send and receive data across shared or public networks. VPN generates an encrypted connection, known as a VPN tunnel, and all Internet traffic and communication is passed through this secure tunnel. Think of your VPN service as your virtual toolbox that enhances and reinforces your internet connection.
You may only be ready to use one sort of VPN technology at a time, but in most cases, you'll have the selection to modify between them via your VPN service. The most straightforward VPN providers support an excellent deal of VPN protocols and features, allowing you to select the first suitable type counting on your needs, or resort to your backup connection and settings if you're experiencing issues together with your current setup.
There are two primary VPN types which are explained below.
1. Remote Access VPN
Remote access VPN enables a user to attach to a personal network and access its services and resources remotely. The connection between the user and therefore, therefore, the private network happens through the web, and the connection is secure and personal. Remote Access VPN is beneficial for business users also as home users.
A corporate employee, while tanelling, uses a VPN to attach to the company's private network and remotely reach files and resources on the private system.
Many private users or Home users of VPN, primarily utilise VPN services to bypass regional limitations on the web and get the access blocked websites. Users knowledgeable of Internet security also utilise VPN services to reinforce their Internet protection and privacy.
2. Site to Site VPN
A Site-to-Site VPN is additionally called as Router-to-Router VPN and is usually utilized in the corporates. Companies, with offices in several geographical locations, use Site-to-site VPN to attach the network of 1 office location to the system at another office location. When multiple offices of an equivalent company are connected using Site-to-Site VPN type, it's called an Intranet based VPN. When companies use Site-to-site VPN type to attach to the office of another company, it's called an Extranet based VPN. Basically, Site-to-site VPN creates a virtual connection between the networks at geographically remote offices and connect them through the web and maintain secure and personal communication between the systems.
Since Site-to-site VPN is predicated on Router-to-Router communication, during this VPN type, one router functions as a VPN Client and a different router as a VPN Server. The connection between the 2 routers starts only after authentication is validated between the 2. Here is an example of how this works https://router-network.com/review/vpn-routers-guide-review
6 Various Features of VPN protocols
Following the above two VPN types are based on various VPN security protocols. Each of these VPN protocols offers multiple features and levels of protection, and are explained below:
1. Internet Protocol Security or IPSec:
IPSec is employed to secure Internet communication across an IP network. IPSec secures Internet Protocol transmission by authenticating the session and encrypts every data packet during the connection, like the applications of Geonode proxies are unlimited.
IPSec works in two modes, Transport form and Tunneling mode, to safeguard data transfer between two different networks. The transport mode encrypts the message within the data packet, and therefore, the tunnelling mode encrypts the whole data packet. IPSec also can be used with other security protocols to reinforce the safety system.
2. Layer 2 Tunneling Protocol (L2TP):
L2TP may be a tunnelling protocol that's usually combined with another VPN security protocol like IPSec to make a highly safe VPN connection. L2TP builds a tunnel between two L2TP link points, and IPSec protocol encrypts the information and handles secure transmission between the tunnelling.
3. Point to Point Tunneling Protocol (PPTP):
PPTP creates a tunnel and encapsulates the information packet. It utilises a Point-to-Point Protocol (PPP) to encrypt the info between the connection. PPTP is one among the foremost widely used VPN protocol and has been in use since the time of Windows 95. aside from Windows, PPTP is additionally supported on Mac and Linux.
4. Transport Layer Security (TLS) and Secure Sockets Layer (SSL):
The two protocols SSL and TLS create a VPN connection where the online browser acts because the client and user access are restricted to specific applications rather than the entire network. SSL and TLS protocol are most ordinarily employed by online shopping websites and repair providers. Web browsers turn to SSL with ease and with almost no action needed from the user since web browsers come mixed with SSL and TLS. SSL connections have https within the origin of the URL rather than HTTP.
5. OpenVPN:
OpenVPN is an open-source VPN that helps build Point to Point and Site-to-Site connections. It uses a type of security protocol supported SSL and TLS protocol.
6. Secure Shell (SSH):
SSH creates the VPN tunnel in which the information transfer happens and also ensures that the tunnel is encrypted. SSH links are created by an SSH client, and data is transported from an area port on to the remote server through the encrypted tunnel.
