VPN is the modern internet service provider which makes sure that your online life remains secure and private. Free VPN services are provided by many companies. Vpn free also has the same features as that of the paid VPN. However, you will not get additional features in the free VPN service.
We are going to discuss common security technologies used by VPN security.
Internet Protocol Security
This technology is an advance mechanism and the most widely used VPN technology. It can only be used with the IP and encrypt any traffic which is supported by the IP protocol.
This modern technology requires digital certificates and sometimes the pre-shared keys as well in it.
Secure Sockets Layer
Secure Sockets Layer (SSL) is a communication protocol which provides internet-based interactions of clients and servers. It also authenticates the server to their clients using the public key and certificates which are digital and encrypts the communications of the entire sessions. It also provides complete protection from the HTTP traffic as well as the email.
Transport Layer Security (TLS)
This is another communication protocol which is based on the SSL, it requires digital certificates from the server and the client. It also provides complete security to the traffic above their transport layer. However, it does not provide any security for their web traffic at the time of the transport layer.
Point to point tunneling protocol (PPTP)
This is a Microsoft VPN technology which used the standard authentication protocols such as the password authentication protocol or the Challenge handshake authentication protocol.
It only supports the IP and TCP. It carries the data securely to the other IP networks and encapsulates some other LAN protocols. It does not encrypt the data; it is used in conjunction with the Microsoft supported mechanisms for the encryption. It is supported by most of the servers and the operating systems.
Layer 2 forwarding
This free VPN technology is developed by Cisco. It offers mutual authentication to its users. The data is not encrypted by this VPN. It is merged with the PPTP to form the L2TP.
Layer Two Tunneling Protocol (L2TP)
Layer Two Tunneling Protocol is an open standard protocol for securing the multi-protocol routing that too by using the IPSec for the encryption process. It just not supports the IP all other protocols are supported by it. This technology may not work with the older operating systems.
Benefits of these technologies
There are many benefits of modern technology which make sure that all of your information is confidentially protected from all the unauthorized users.
The VPN free also authenticates that the sender of the VPN is a legitimate device and not used by any attacker.
All of your data is completely protected against the alteration during the transmissions. The benefits offered by this security service are worth using due to the vulnerability online and the number of hackers ready to use your data for negative purposes. You have to select the best technology as per your needs after doing complete research.