virtual private network
virtual private network

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Every day, most people use the Internet for personal or business needs. Up until now, you still haven’t had any security issues when using the Internet. But what if I told you that the Internet connection you are using is not secure? Yes, I know you have a Wifi password, but what about virtual private networks? Do you need a virtual private network or not?

In general, a virtual private network (VPN) is a collection of computers or separate networks that are interconnected through the public Internet. A VPN network protects your connection by making sure that all input and output data is encrypted and is not being watched by others. Read more about virtual private network VPN and why you need to use this service

How do you know if you need a virtual private network? Quite simply, everyone, from students to workers, anyone interested in their privacy while accessing the Internet needs to use a VPN virtual private network.

On the market today there are many types of virtual private networks. Some popular names include: PPTP, Site to Site, L2TP, IPSec, SSL, MPLS, and Hybrid. Here we will explore the details of each type:

1.PPTP VPN

PPTP stands for Point-to-Point Tunneling Protocol. As the name implies, the PPTP virtual private network creates a tunnel for data to travel. It is quite a long name for the most used VPN network. Users will connect to the PPTP VPN network using their existing Internet connection. This type of virtual private network is suitable for both business and personal use. To access the PPTP network, users will have to log in with a password. The reason that PPTP is suitable for both objects is because it is completely free, you do not need to install the program to use, and the features of this service are usually sold as add on software for a price. very cheap. PPTP is also popular because of its compatibility with all three operating systems Windows, Mac OS, and Linux.

Besides the many advantages, PPTP has one downside: it doesn’t use encoders. Whereas people use VPNs mainly because of that feature. Another downside of PPTP is that it uses PPP protocol for secure transmission.

2. Site-to-Site VPN

Site to Site VPN stands for Router to Router VPN. It is commonly used in companies and mass organizations. Today, many companies have offices located both at home and abroad; therefore, they use the Site to Site VPN network to connect the main office’s network with the rest of the offices. This type of connection is called an “intranet” (local area network). In addition, Site to Site network is also useful in establishing communication between companies, called “Extranet” (network extension). In simple terms, Site to Site VPN builds a virtual bridge connecting networks that are far away from each other through the Internet connection, ensuring the transmission of information is safe and secure.

Similar to PPTP VPN, Site to Site VPN is also used to ensure network safety. However, since no static lines are used, every location in the corporate network can form a virtual private network. Unlike PPTP, routing, encoding, and decoding are all done by routers using either hardware or software located at the ends of the transmission line.

3. L2TP VPN 

L2TP, Layer 2 Tunneling Protocol (Layer 2 tunneling protocol), is a virtual private network developed by Microsoft and Cisco. L2TP is a VPN network that is often combined with another VPN protocol to establish a more secure connection. The L2TP network forms a tunnel between two L2TP connection points, while another VPN (such as the IPSec protocol) will take on the role of data encryption and focus on ensuring the security of information. transmitted through the tunnel.

The similarity between L2TP and PPTP is that they both do not use an encoder, but rely on the PPP protocol to secure data. However, L2TP still ensures the integrity and security of the data, while PPTP does not.

4. IPsec

IPSec stands for Internet Protocol Security. IPSec is a VPN protocol used to ensure secure data transmission over an IP network. A remote tunnel setting allows users to access a central location. The IPSec protocol protects the transmission line by verifying each session and encrypting packets individually throughout the transmission. IPSec operates in 2 modes: transport mode and tunnel mode. Both modes have the same effect of protecting data during the transfer between two networks. In tunnel mode, the whole data bundle is encode. In tunnel mode, the entire data packet is encrypted. The benefit of using the IPSec protocol is that it supports other protocols for increased safety and security.

Although IPSec is a very useful protocol, its biggest downside is that users have to wait a long time for the program installation to complete before they can start using it.

5. SSL and TLS

SSL(Secure Socket Layer) and TLS (Transport Layer Security). The two are combined into one protocol used to build VPN connections. This is a VPN network in which the web browser acts as the client and the users can only access certain applications, instead of the entire network. The SSL and TLS protocols are mainly used in online shopping websites and by service providers. SSL and TLS VPN networks will ensure secure access sessions from the user’s browser to the application’s server. The reason is that web browsers easily switch to SSL and the user doesn’t need to do anything. The web browser is always SSL and TLS compatible. SSL connections will have links that start with https instead of http.

6. MPLS VPN

Multi-protocol label switching (MPLS) is the most commonly used technology for Site to Site connectivity. This is because MPLS is the most versatile and adaptable choice. MPLS is a source based standards used to speed the division of network packets through many different protocols. MPLS VPN networks are VPN networks regulated by Internet service providers. A VPN network governed by Internet service providers is a network formed when two or more computers are connected to each other and use the same Internet service provider. The biggest downside of MPLS is that it is not easy to set up two compatible VPN networks with each other. The editing process is also quite difficult. That’s why using MPLS is often more expensive than other solutions.

7. Hybrid VPN

A hybrid VPN network is a combination of MPLS VPN and IPSec VPN. Although these 2 types of virtual private networks are often used for different purposes, but we can still combine them together. The goal is to use IPSec VPN as a fallback for MPLS.

As I mentioned, IPSec users need some device to use the service. It’s usually a router or multitasking security application. Through these devices, data is encrypted and formed into a VPN tunnel as I explained above. MPLS VPN is used by carriers, with the help of devices in the carrier’s network.

In order to be able to combine IPSec and MPLS, a port will be set up to remove the IPSec tunnel from one side and include it in the MPLS at the other end, while ensuring the security of user data.

Hybrid VPN networks are mainly used by companies, as MPLS is probably not the most suitable option. MPLS has many advantages over normal Internet, but its price is very high. So using a hybrid VPN allows them to access the central server from another location. Hybrid VPNs aren’t cheap either, but in return it’s very flexible.

Conclude

In short, choosing the right VPN network is not easy. To be able to make the right decision, you first need to determine what kind of security you want to use. The choice of a VPN network must also depend on the users, such as you are a student, a small business owner, or a large company with many branches. In addition, users also need to consider how their security needs are, as simple or complex as a hybrid VPN network. Cost is also a factor to consider before making a decision. How much money are you willing to spend and how much is enough for your internet security needs? Once you have answered all of the above questions, it will be easy for you to choose a suitable VPN network. My advice is to do more research in this area. Good luck!

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