In simplest terms, a VPN is a tool that allows you to connect to various network types over the internet without risking the privacy. The main intention of a VPN is to protect the data transferred through the network; VPN users expect to keep malicious third parties away from the online activities.
In general, VPN connections are used to connect either a client and a gateway or two gateways. The date between the two parties will be encrypted and transferred via a highly secured tunnel. Because of this additional security measures, third parties cannot steal your information and misuse them. A good VPN makes sure that the intended communication takes place between the two respective parties only.
Based on the functionality, you can identify that there are two VPNs. Site-to-site and remote access VPN are those categories and let’s have a look at the each category now!
Remote Access VPN
This is the most popular type of VPN among the personal internet users. Usually, these VPN connections can be established within common networks such as home of office. Once a VPN server is set within the respective network, you can connect to it as a client from a remote location. The communication between the two parties will not be revealed to any external source. The similar configuration can be done in an easier manner using a VPN service; these services are offered by various vendors these days. Most of the VPNs are not that difficult to configure and they do not cost a fortune.
Generally, remote access VPN are common among those who need to connect to public hotspots (the free WiFi connections that are available in public places like malls, restaurants etc.). You will need to install the client software in your computer or mobile device; this software is capable of configuring your device to match the configuration of the network and create a well secured tunnel that sends data in encrypted format. Different VPNs offer different encryption methods to secure the data. Therefore, it is always better to look for VPN service that utilizes the latest and more complex encryption methods. Some of the common encryption processes used in remote access VPN are, PPTP, L2TP/IPsec and OpenVPN. Instead of using a VPN client software, you can consider using an SSL VPN, which operates via the web browser.
Site-to-Site VPNs are different. When the two networks are connected via internet using a VPN, all the computers on the respective networks can communicate with each other securely. Third parties will not be able to access the communication line because of the sophisticated encryption. Usually, these VPNs are used by companies and organizations in order to establish a well secured communication line via internet.
In conclusion, it can be said that site-to-site VPN is suitable for large scale connections while Remote access VPN is more appealing for personal users. Both these options are available at different rates and specifications in the market.