Before knowing the working as well as other aspects of VPN, it is important to understand the basics of this term. In generalized terms, a VPN connection is the extension of a private network that involves the links shared across public networks. These VPN connections are quite useful when it comes to faster sharing as well as accessing of any particular kind of online file like videos, pictures, etc. VPN is also a boon when it comes to the organizational level. It enables the sharing of data/information between two computers via the internet with the point-to-point private link properties. This VPN is a very important and inseparable part of the current world. These VPNs have become largely popular in the never static corporate world because of the security feature while accessing sensitive data.
These VPNs use encrypted internet protocols along with dedicated computer connections, which in turn give rise to birth virtual connections.
Working- The working of VPN is quite an easy task to carry out. The very first step towards the generation of this virtual connection is the connection of the user to the public internet service via ISP, which is further followed by initiation for VPN connection to the server(VPN Server) via client software. Finally, the client software establishes a highly secure connection.
There are numerous security protocols developed as VPN. As for example,
- IP Security (IPSec)
- Secure sockets layer (SSL)
- Transport layer security (TSL)
- Layer to tunneling protocol (L2TP)
- Point to point tunneling protocol (P2PT)
- Secure shell (SSH)
This amazing invention of VPN is more or less comparable to that of ‘firewall’. Both of these computer services, provide security and protection of the stored and restored information/data, with the only difference of mode of securing i.e. firewall protects and authorizes the data offline or simply we can sum it up as it protects and secures the data on the computer system, whereas this VPN secures and protects the user data online. VPN is one of the major solutions to generate/establish wide distance network connections. Now, we will get to know some of the important benefits/advantages of having a VPN connection-
- Cost-effectiveness: VPN decreases the high costs of long network connections.
- We can work with wi-fi (local area network) as well.
- Reduces scalability to a greater extent, etc.
CONDITIONS FOR USING A VPN-
Each one of the clients must have the perfect software for networking and hardware meant for supporting that particular local area network as well as the computer systems.
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But as we all are aware of the fact that there are always two faces of any coin, similarly this VPN internet service also has some demerits along with the above-listed merits or advantages. Some of the major demerits include-
- Detailed and precise knowledge of networking and its issues is required.
- The functioning of a particular VPN connection is not under the direct control of the authority.
- Compatibility factor is often hampered.
So, after reading this article I hope one can easily understand all the important features of best free vpn along with its working.