A web VPN is a professional network that links a secure network connection over a public network like the Internet or a network that is owned privately by a service provider. The webVPN enables users such as students, faculty and staffs to access web-based resources through a secure browser session.
Above all, what makes it so important is that web VPN requires no installation, which makes it ideal for use on public computers.
The Large organization typically use VPN technology to enable people from remote to connect to a private network.
You should also note that VPN just like Wide Area Network (WAN) wide area network makes its use in dissemination of information to a wide user base. Universities use VPN to connect to their campuses located in various parts of the country or different countries.But how exactly do you get access to this private network?
First of all, you must be allowed to use a unique ID and a password. An admission token usually enables you to get access to a private network trough an ID or a PIN that you enter to log in. here are some of the VPN protocols that allow data traffic over a public network infrastructure. Let us know each one of them.
Point-to-point tunneling protocol (PTPT)
PTPT is the commonly applied VPN protocol because it is induced in the windows operating system and because of its absolute configuration without the need to utilize additional software and maintenance. It is a communication network that enables the organization to extend their network through private tunnels over the public Internet.
Initially, in 1999, it was configured with Windows 95 OSR2 though now using 128-bit encryption keys, the PTPT now uses some security vulnerability such as the MS-CHAP v2 authentication. PTPT has its support on the following operating system and browsers; Windows, Mac OS X. LINUX, Android, and DD-WRT.
- It is easy to use
- It is fast due to its lower encryption
- Operates well in most of the WI-FI and it is very stable.
- It is native on the most desktop. Mobile devices and tablets operating system
- It is not well secured because it still uses the vulnerable MS-CHAP v2 authentication.
- The presence of the NSA compromises the workability of the PTPT.
- Layer two tunneling protocol (L2TP)
PTPT is a protocol that relies on an encryption protocol that it delivers to enable privacy rather than providing encryption itself. It does not give confidentiality by itself; Rather it has the presence of IP sec that gives it its confidentiality, authentication and integrity.
L2TP initiates the creation of a virtual private dial-up network to connect remote users to its larger organization network by using a shared internet or a service provider’s network.
- Usually seen as secure
- Very easy to establish
- It is faster compared to open VPN
- The configuration of IP sec encapsulates data twice thus slowing things down.
Secure sockets layer (SSL)
It has its origin from Microsoft in Windows Vista SPI although it is nowadays available for Linux, routerOS, and sell. It is mostly a Windows-only platform. it is a technology that provides encrypted link between a web browser and a web server. The link serves to ensure that information passed between the web server, and the web browser remains private and confidential.
It uses cryptography to secure information and communication over the internet. The SSL has its use mostly by e-Business providers to protect their clients by making sure that their online transaction remains safe and confidential.SSL permits very sensitive information such as credit card numbers, to have their transmission safely.
- Very secure
- It has complete integration into Windows such as Windows Vista SPI, windows 7 and windows 8
- It has micro support
- It works well only in Windows operating system
IP security (IPSec)
IPSec is a set of protocols for securing network connections. IPSec supports two modes of encryption. It consists of the header that allows authentication of the sender of data and the encapsulating security payload that allows both authentications of the sender and encryption of data.
For efficient working of the IPSec, both the sending and the receiving devices must have and share a public key enabled through internet security association and the key management, the protocol which permits the recipient to get a public key and authenticate the sender by applying digital certificate.
General advantages of VPNs
A web VPN is very effective way of establishing a private network. Application of the internet is the best alternative system of communication between sites as compared to the very expensive leased private lines.
Besides, its ease, speed, and greater flexibility elevate web VPN above leased lines.
General disadvantages of webVPN
VPN can be an important cause of packet loss and low performance when there is the lack of quality of service management over the internet.
Problems of adverse network condition that happens outside the VPN are beyond the control of the VPN administrator.