What is OpenVPN?

OpenVPN is an open-source connection protocol that establishes a private connection, or tunnel, between a VPN client and a VPN server. 

what is openvpn

OpenVPN is an open-source connection protocol that establishes a private connection, or tunnel, between a VPN client and a VPN server

OpenVPN is a virtual private network that can be downloaded and installed onto your computer. It creates a secure connection between two devices, such as two computers or an individual’s computer and smartphone.

The process of using OpenVPN to create this secure connection is called “tunneling.” Tunneling allows for the transfer of data from one device to another without interference from other third parties.


There are two versions of OpenVPN: the open-source project and the Pro version which offers both free trial and paid licenses for business users. If you’re wondering what OpenVPN is or how it works then read this blog post!

How do OpenVPN works?

how does openvpn work

OpenVPN works on a client-server architecture. Basically, the software needed to set up an OpenVPN server is installed on a machine that needs to be remotely accessible (a server) and OpenVPN clients are installed on all machines which need to access this server (remote workers).

There are two main protocols for establishing and managing VPN connections with secure protocol:


Point to Point Tunnelling Protocol. It is the easiest and most popular protocol for VPN. All modern operating systems have a built-in PPTP client, but server support still needs to be set up separately.


Layer 2 Tunneling Protocol. L2TP is similar to PPTP as it also uses a control channel over UDP and a GRE tunnel operating as a data channel. L2TP does not provide any encryption or confidentiality by itself; it relies on the upper-layer protocol (e.g. IPSec) to secure the data transmitted over the L2TP tunnel

OpenVPN is an SSL/TLS VPN . OpenVPN tunnel client/server connections over TCP port 443. When combined with HTTPS (the ‘S’ stands for ‘Secure’), OpenVPN becomes a powerful, yet flexible tool to bypass firewall and content restrictions while maintaining strong encryption and authentication features which has made it popular amongst both corporate users and home users.

OpenVPN is not just an alternative VPN software to the likes of CiscoVPN or Fortinet VPN, but it also provides very flexible SSL/TLS VPN protocols that can be used to overcome almost any firewall or content restriction.

Is OpenVPN safe to use?

Yes. OpenVPN is safe to use as long as you stick to the practice of using it only with an authenticated and encrypted VPN connection (i.e., a connection that employs strong cryptography and security protocols). OpenVPN is considered one of the most secure VPN technologies available today. To date, no security vulnerabilities have been discovered within OpenVPN.

This completely depends on your specific situation. For example, in Hong Kong you can read through our guide for more details on what the law actually says about VPN usage and statistics there. As a general rule, it is always best to operate within the confines of the law.

Is OpenVPN free?

Yes! OpenVPN protocol is free to use and distribute. The code for both the client and server has been open-sourced (i.e., made available for public review), allowing anyone to independently verify its security and authenticity. Moreover, it runs well on most computing platforms including Windows, Mac OS X, and Linux. For OpenVPN UDP connections use port 1194.

Is OpenVPN important?

OpenVPN offers an extremely secure way to encrypt your data, meaning that no one can see what you do online (including your ISP). We’ll go into more detail about OpenVPN shortly.

Before we begin, let’s address “what is a VPN?” To put it simply, a VPN (Virtual Private Network) creates an encrypted tunnel between your computer and the VPN’s server. This allows you to use the internet privately, securely, and freely.

A VPN can also be used to change one’s apparent geographical location (by connecting to a server in another country). For example, if you’re an American traveling overseas, you can connect to a US-based VPN server using your VPN app. This will allow you to access all of your American accounts when you’re abroad (by connecting to that US-based server). Get the best OpenVPN connections from this VPN provider for configuring OpenVPN.

It’s also important to note that if a website or service says it’s based in one country, but actually has servers in another – the site could be considered “fake.” A great example is Netflix. Although it’s based in the US, its servers are actually located all over the world. The Open source VPN protocol drags internet traffic within the user datagram protocol and secure socket tunneling protocol.

This means that if you connect to a different country’s server (using your VPN), you will appear to be in that location…and can access content accordingly. OpenVPN can create its tunnel using either TCP (Transmission Control Protocol) for maximum reliability.


OpenVPN is an open-source software application that allows for secure point-to-point connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol based on SSL/TLS to establish an encrypted connection across the Internet.

OpenVPN works with Windows 2000, XP, Vista, 7, 8 and Mac OS X (10.5+), Android (2.1+), iOS (4+). It uses a custom security protocol that utilizes SSL/TLS for key exchange. In short, it is arguably the most secure VPN protocol in use today with an OpenVPN access server and VPN service.




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