What is OpenVPN?


OpenVPN is one of the safest VPN protocols, providing strong encryption with 256-bit keys (containing large numbers of zeroes and ones) that makes it more difficult for hackers to intercept online messages that you send online.

OpenSSL library to secure data packets sent from your device to the router, turning them into unreadable junk that hackers cannot read and exploit to steal information like logins and passwords.


OpenVPN provides an impressive level of security for a free protocol. Using SSL connections and its enhanced form, TLS (Transport Layer Security), it encrypts data sent between devices preventing any third parties from being able to read your information. Furthermore, OpenVPN offers various authentication methods, including pre-shared secret keys, certificates, username/password combinations as well as pre-shared secret keys and username/password pairings for authentication purposes.

This makes OpenVPN one of the most secure and flexible VPN protocols on the market, enabling it to securely link any two networks through an encrypted tunnel. Furthermore, its flexibility enables it to run on different types of platforms from desktop computers and laptops to mobile phones and tablets. You can use it to link two separate networks together using what is known as site-to-site configuration, or connect remote clients such as mobile phones directly with company resources and internet via what is known as road warrior setup.

As an open source project, OpenVPN is continually upgraded and improved by the community of security experts that comprise it – unlike proprietary VPN software which may be subject to profit motives of individual organizations; hence it is much less susceptible to being compromised and hacked.

As it’s a user-space daemon without requiring modifications of its IP layer, porting to new platforms should be relatively straightforward.

OpenVPN was specifically created to be as responsive to its IP layer that it tunnels over, so if there is an outage in its network, OpenVPN will resume operation as soon as connection can be reestablished.

This design, combined with the fact that it isn’t managed by a large corporation, has made Tor a reliable VPN protocol. Although minor issues have arisen at times, most were quickly addressed by its developers.


OpenVPN provides secure encrypted tunnels across the Internet that link networks from various locations, whether that means different cities, countries or even continents. Connections are made using UDP (User Datagram Protocol) or TCP (Transmission Control Protocol).

TCP performs many checks to ensure data arrives in its intended order and does not get lost along its journey, which comes at the cost of slow performance due to packet delivery/receipt delays.

UDP is significantly faster, since packages can be sent without having to go through verification checks before being sent out for transmission, making it an excellent solution in networks where reliability may be an issue.

As another factor that impacts VPN speed, CPU utilization of endpoints involved in communication – from devices encapsulating packets and routers that send them over the network – plays an integral part in its effectiveness. Low CPU utilization will minimize latency while optimizing speed.

Other elements that affect VPN performance include errors that arise during communication. These errors include corrupted, duplicated or out of order packets. Error rates also depend on how much bandwidth was used per transfer – the lower your error rate, the better it will perform!

Not only is encryption important in VPNs, but their speed also depends on how quickly each packet can be encapsulated and transmitted – the more packets that must be handled simultaneously the slower their overall performance will be.

At its core, selecting a provider with high speeds is of vital importance. OVPN stands out as being an example of such a provider with its 118 servers in 32 locations that all operate from RAM so no files get written to disk and uses its proprietary security protocol based on SSL/TLS to provide strong protection from cyber attacks.

Surfshark, another popular VPN service, utilizes 256-bit AES encryption and transforms data it sends 14 times before transmitting over the web – enough to make your activity virtually unreadable by anyone trying to spy on it online. Plus, being disguised as normal traffic means it is also useful in bypassing filters and firewalls.


Just like when planning a journey to a restaurant, data follows specific pathways on the Internet with different rules governing them; that’s why having a VPN service to protect your privacy online is so essential.

OpenVPN works by creating a tunnel between your computer and the servers you connect to, secured with encryption technology that transforms data into unreadable garbage that’s unbreakable even by modern spy agencies. OpenVPN uses AES-256-GCM as its encryption standard – an effective, powerful, reliable method which is nearly impossible to break with today’s computers.

OpenVPN boasts multiple security measures that increase its protection, such as supporting multiple connection protocols such as TCP and UDP, TLS (Transport Layer Security) integration, HMAC firewalling – these features ensure only authorized devices and users access a server, thus preventing unintentional use.

As another safety measure, OVPN servers support RSA-2048 bit certificates as an added layer of protection to verify and protect user identities and personal data when connected. This ensures you get maximum privacy protection when connecting to one.

OpenVPN’s open source community works diligently to update and upgrade its features, meaning any bugs in the code are quickly addressed – giving you more trust than proprietary solutions like L2TP or Wireguard that operate under their sole ownership.

OpenVPN stands out as an industry leader when it comes to reliability. For instance, its perfect forward secrecy feature, in which encryption keys are rotated every few minutes to prevent hackers from decrypting your data, is especially essential when streaming video over the Internet – losing connection can easily occur during watching. Our servers rotate encryption keys every 45-75 minutes so this won’t interfere with our ability to stream securely; something not available with ExpressVPN or VyprVPN services.


OpenVPN works like other VPN protocols by routing online data through secure virtual tunnels that function like secret passageways. What sets it apart, however, is its code being made open-source allowing any programmer to inspect and alter it at will; creating an active community of programmers who constantly test and tweak its features compared to many popular protocols like PPTP or L2TP which remain closed source and therefore untouched by such scrutiny.

As soon as you connect to an OpenVPN server, your data travels through two channels: data and control. While data carries all your regular internet activity such as website visits and file downloads, while control handles authentication and encryption of the VPN connection. OpenVPN supports many options here from pre-shared keys to certificates to username/password combinations for maximum flexibility.

Flexibility is key when you’re trying to bypass a particular VPN block, and makes your VPN appear totally ordinary to anyone observing. This can reduce any suspicion about what you may be doing online; something of great concern for some VPN users who fear government surveillance via the US’ Five Eyes network.

OpenVPN uses SSL/TLS technology for more than just data encryption – it also manages communications and prevents packet loss, using similar measures to protect HTTPS web traffic – an integral component of any high-quality VPN solution.

OpenVPN also features HMAC, which helps verify that its data hasn’t been altered during transit – another essential security measure and one reason to opt for providers that support it.

Most consumers opt for services that utilize OpenVPN protocol and offer them an intuitive app and access to servers around the globe. Some providers will even offer premium subscription plans with features like no borders and kill switch, all operating on this core technology.

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