One major limitation of traditional VPNs is that they are point-to-point, and do not tend to support or connect broadcast domains. Therefore, communication, software, and networking, which are based on layer 2 and broadcast packets, such as NetBIOS used in Windows networking, may not be fully supported or work exactly as they would on a real LAN. Variants on VPN, such as Virtual Private LAN Service (VPLS), and layer 2 tunneling protocols, are designed to overcome this limitation.[citation needed]
Hotspot Shield depends on a custom VPN protocol that's not been publicly analyzed by independent experts. We don't know how private or secure it really is. The company has been accused of spying on users (it denies the allegations), and complaints abound online about Hotspot Shield software installing on PCs without users' permission. All this, and the company's U.S. location, may scare away customers who want to protect their privacy.

Max Eddy is a Software Analyst, taking a critical eye to Android apps and security services. He's also PCMag's foremost authority on weather stations and digital scrapbooking software. When not polishing his tinfoil hat or plumbing the depths of the Dark Web, he can be found working to discern the 100 Best Android Apps. Prior to PCMag, Max wrote... See Full Bio


A number of vendors that sell dial-up access servers have implemented the ability to create a tunnel on behalf of a dial-up client. The computer or network device providing the tunnel for the client computer is variously known as a Front End Processor (FEP) for PPTP or an L2TP Access Concentrator (LAC) for L2TP. For the purposes of this reference, the term FEP is used to describe this functionality, regardless of the tunneling protocol. To carry out its function, the FEP must have the appropriate tunneling protocol installed and must be capable of establishing the tunnel when the client computer connects.

The solution is downloadable and supports platforms such as OS X, Windows and Linux. Mobile systems like Android and iOS are also supported. These capabilities enable users to use the product on desktops, laptops, smartphones or tablet computers. The software can also be downloaded onto network routers, ensuring that all devices connected to such routers enjoy the same level of protection.


Most of the popular VPNs have dedicated apps for Windows, MacOS, iOS and Android, but VPNs can also be manually configured in various ways. Most VPNs allow a number of “simultaneous connections.” What this means is that you can run VPN apps on a number of devices at the same time using the same VPN account. We now have detailed VPN setup for all major platforms, including:
Since it takes research to find out if a VPN service has a history of good or bad behavior, we’ve done the legwork to find the best VPN out there. In order to win our seal of approval, the service has to protect online privacy; allow you to keep anonymity; offer a good variety of locations from which to direct your traffic; offer fast, reliable performance; and provide an easy-to-use interface.
Voluntary tunneling occurs when a client computer or routing server creates a virtual connection to the target tunnel server. To accomplish this, tunneling client software and the appropriate tunneling protocol must be installed on the client computer. For the protocols discussed in this technical reference, voluntary tunnels require an IP connection (either LAN or dial-up).

A firewall uses packet filtering to allow or disallow the flow of specific types of network traffic. IP packet filtering provides a way for administrators to define precisely what IP traffic is allowed to cross the firewall. IP packet filtering is important when private intranets are connected to public networks, such as the Internet. There are two approaches to using a firewall with a VPN server:


Most people leave their privacy and security vulnerable in ways that are easier to fix with methods other than signing up for a VPN—methods that are potentially more effective. If you have a drafty house with paper-thin walls and halogen light bulbs, you'd get far more value out of every dollar by sealing cracks, insulating, and switching to LEDs than you would by putting solar panels on your roof. Similarly, before you rush to sign up for a VPN subscription, you should consider these other ways to up your privacy game.
Jurisdiction – The British Virgin Islands (BVI) falls outside of the jurisdiction of European countries part of the “14 Eyes”. There are no data retention laws in the BVI, which makes it a perfect location that can be trusted for its user-friendly privacy laws. ExpressVPN rightly boasts its jurisdiction as it is one of the main attributes of the provider.

We’ve shown you how to build your own VPN for remote gaming and browsing that also protects your security, shown you how to make a VPN even more secure, and shown you dozens of services that operate free and paid VPNs you can sign up for and use. We’ve even put the question to you several times to tell us which VPN service providers you think are the best. So how do you pick a solid VPN service?
The best VPN services offer a robust balance of functions, server location, connectivity protocols, and price. Some are great for occasional use, others are geared towards surrounding location constraints that companies place on their apps and services, and others are focused on people who download a lot of content and want some privacy while they do.

Security is the main reason why corporations have used VPNs for years. There are increasingly simple methods to intercept data traveling to a network. WiFi spoofing and Firesheep are two easy ways to hack information. A useful analogy is that a firewall protects your data while on the computer and a VPN protects your data on the web. VPNs use advanced encryption protocols and secure tunneling techniques to encapsulate all online data transfers. Most savvy computer users wouldn't dream of connecting to the Internet without a firewall and up-to-date antivirus. Evolving security threats and ever increasing reliance on the Internet make a Virtual Private Network an essential part of well-rounded security. Integrity checks ensure that no data is lost and that the connection has not been hijacked. Since all traffic is protected, VPNs are preferred over proxies.
Early data networks allowed VPN-style remote connections through dial-up modem or through leased line connections utilizing Frame Relay and Asynchronous Transfer Mode (ATM) virtual circuits, provided through networks owned and operated by telecommunication carriers. These networks are not considered true VPNs because they passively secure the data being transmitted by the creation of logical data streams.[3] They have been replaced by VPNs based on IP and IP/Multi-protocol Label Switching (MPLS) Networks, due to significant cost-reductions and increased bandwidth[4] provided by new technologies such as digital subscriber line (DSL)[5] and fiber-optic networks.

Multi-hop cascades + NeuroRouting – Perfect Privacy’s apps give you the ability to create multi-hop VPN cascades across up to four different servers in the network. This protects you against the possibility of a rogue data center logging traffic, targeted monitoring, and other threat scenarios. Additionally, the NeuroRouting feature takes this concept further by dynamically routing all traffic through multiple hops in the server network, corresponding to the location of the site you’re visiting. (No other VPN offers this.)


One of the most common types of VPNs used by businesses is called a virtual private dial-up network (VPDN). A VPDN is a user-to-LAN connection, where remote users need to connect to the company LAN. Another type of VPN is commonly called a site-to-site VPN. Here the company would invest in dedicated hardware to connect multiple sites to their LAN though a public network, usually the Internet.
Whether the VPNs you’re familiar with are the ones offered by your school or business to help you work or stay connected when you’re traveling or the ones you pay to get you watch your favorite shows in another country as they air, they’re all doing the same thing. For much more detail on what VPNs are, how they work, and how they’re used, check out this How Stuff Works article.

The second thing that happens is that the web application you're talking to does not get to see your IP address. Instead, it sees an IP address owned by the VPN service. This allows you some level of anonymous networking. This IP spoofing is also used to trick applications into thinking you're located in a different region, or even a different country than you really are located in. There are reasons (both illegal and legal) to do this. We'll discuss that in a bit.
CyberGhost is one of the most feature-rich VPNs with special configurations for different use cases, including media streaming, downloads, anti-censorship and safe browsing. Ultimately designed to optimize your connection, this turned out to be quite irrelevant when looking at the download speed, which came out lowest across all testing tools, with an average speed of 2.47 Mb per second.

PureVPN has servers in more than 140 countries and can be very inexpensive if you pay for two years up front. It also lets you "split-tunnel" your service so that some data is encrypted and other data isn't. But PureVPN was at or near the back of the pack in almost all of our 2017 performance tests. In October 2017, the U.S. Department of Justice disclosed in a criminal complaint that PureVPN had given the FBI customer logs in reference to a cyberstalking case, which kind of negates the entire point of using a VPN.
Trusting a VPN is a hard choice, but IVPN’s transparency goes a long way toward proving that its customers’ privacy is a priority. Founder and CEO Nick Pestell answered all our questions about the company’s internal security, and even described the tools the company used to limit and track access to secure servers. The top VPN services gave us a variety of answers to these questions, some of which were frustratingly vague. ExpressVPN was the only other company to outline these controls and assure us that these policies were well-documented and not half-practiced.
So, having stated that, there are VPN protocols that are fast (implies no, or minimum encryption) and some are slow (implies stronger encryption). PPTP is a protocol which is one of the less secure but fastest protocols out there. Similarly, other protocols such as OpenVPN or L2TP/IPSec are way more secure. So, it all comes down to your own priorities. Do you want more speed or more protection? And if you want best of both worlds, we have already suggested Fast VPN providers that have all the options and protocols to get accustomed to your priorities.

While VPNs are an important tool, they are far from foolproof. Let’s say you live in an oppressive country and want to evade censorship in order to access the unrestricted web. A VPN would have limited use. If you’re trying to evade government restrictions and access sites like Facebook and Twitter, a VPN might be useful. Even then, you’d have to be somewhat dependent on the government’s willingness to look the other way.
Access to Netflix and other streaming services is rock solid thanks to dedicated streaming servers. Torrenting/Kodi performance is equally good except on US servers, where P2P traffic is sadly banned. Download speeds on local connections are typically over 128Mbps and while they drop off on international servers, it’s always enough for HD streaming.

When we ran our recent Hive Five on VPN service providers, we heard from VPN providers begging to be included, angry CEOs who claimed their company was maliciously left out, and others accusing some of the contenders of illegal or unethical behavior. We took at look at the poll and the claims, and while there’s no definitive proof the poll was gamed, we decided to come up with our own top five, based on our own research rather than reader feedback, that are great whether you’re the privacy advocate, the student, or the downloader.


The table below will give you, at a glance, all the high-level information on what I consider to be the top VPN providers. For each service, you will also find links to a full review, multi location speed tests and a complete list of servers. If you need a bit of help knowing what to look for, please take a look at my article on how to choose a VPN.
Each of these VPN scenarios can be deployed to provide connectivity over a public network, such as the Internet, or over a private intranet. VPN connections can also be deployed in an extranet scenario to communicate securely with business partners. An extranet functions as an intranet that can be securely shared with a designated business partner.

The service proudly states that it allows users to stream music or streaming video while connected to move between annoying content blocks, especially if you are away from home and live abroad but want to watch your favorite TV shows Play in your country or have a subscription to a streaming music service. There are more servers in more than 61 countries, and there were almost no losses in our tests, that is, performance first. With robust cryptography and a reliable network, now is the right time to check IPVanish’s 7-day trial offer.
My recommendation, and the protocol I most often choose to use, is OpenVPN. OpenVPN is a non-proprietary, open-source implementation of a VPN communication layer protocol. It's well-understood, well-regarded, generally quite secure, and robust. In addition, it has the benefit of being able to communicate over port 443, which is the standard port for https communication, which means almost all firewalls will allow OpenVPN traffic -- and most won't even be able to detect that a VPN is being used.
PureVPN has a huge choice of 750 servers in 141 countries and counting. The sheer volume of features, toggles, and tools they provide makes it a top contender for the advanced users. There is a stealth browsing mode, online banking security, secure FTP access, multiple protocols and more. They have server lists optimized for P2P and video streaming, so switching is easy.
ExpressVPN earns a spot on our list thanks to its feature-filled service that is easy to use for both technical and non-technical users. ExpressVPN consistently ranks as one of the fastest VPN providers in our official BestVPN Speed Test. This makes it a fantastic option for streaming HD content. Robust encryption keeps hackers at bay and no usage logs means the company can’t share your personal browsing data. With servers in plenty of countries around the world, “stealth” servers to help users in China bypass the firewall, and Smart Domain Name System (DNS) service that keeps streaming sites like Netflix running smoothly, you can see why ExpressVPN continues to impress our experts and remains one of our most popular VPN providers. Try ExpressVPN today with a 30-day, no-quibble, money-back guarantee.
After the tunnel is established, data can be sent. The tunnel client or server uses a tunnel data transfer protocol to prepare the data for transfer. For example, when the tunnel client sends a payload to the tunnel server, the tunnel client first appends a tunnel data transfer protocol header to the payload. The client then sends the resulting encapsulated payload across the network, which routes it to the tunnel server. The tunnel server accepts the packets, removes the tunnel data transfer protocol header, and forwards the payload to the target network. Information sent between the tunnel server and the tunnel client behaves similarly.

Our Free VPN Service is built on the cornerstones of freedom of speech and a basic right to privacy – We believe that every individual should have access to the internet without fear of an invasion of these rights. You should be able to surf the web, download files, and chat to your friends freely without reprisal. The internet is a vast wealth of information which should be readily available without restrictions. With a great understanding of these rights and beliefs, we have created an all-encompassing VPN service that provides you with the security you deserve.


Cost: You have three pricing options depending on how often you want to pay. The cheapest IPVanish plan is to buy a full year at once for $77.99, making the monthly rate $6.49/month. If you pay for three months at once for $26.99, the monthly cost comes down to $8.99/month. However, to subscribe on a monthly basis with no commitment, it will cost $10/month.
And if you’re looking for mobile VPNs, we’ve compiled the best VPNs for Android and the best VPNs for iPhone. For your local network, it might even be easier to set up a VPN on your router 4 Reasons to Set Up a VPN on Your Router (Instead of Your PC) 4 Reasons to Set Up a VPN on Your Router (Instead of Your PC) You use a VPN, but is it practical to use it on several devices when you could simply set it up on a VPN? The choice is yours. Here's what you need to know. Read More .
A powerful VPN service, Hotspot Shield is ideal for those who enjoy using public Wi-Fi. It is basically a free VPN that comes in the form of an application or as a browser extension. Security is assured as the service uses OpenVPN , which makes use of the same encryption as HTTPS does. This feature is particularly effective in protecting credit card information during online purchases.

To be fair, not all pay VPN services are legitimate, either. It's important to be careful who you choose. Over on ZDNet's sister site, CNET, I've put together an always up-to-date directory of quality VPN providers. To be fair, some are better than others (and that's reflected in their ratings). But all are legitimate companies that provide quality service.

We can go into the greater explanation about these three metrics but what matters to you, is important. We assume that most of you are content consumers and are more inclined towards reading the news, using BitTorrent, streaming movies, or listening to music to pull down the data more or less continuously. With that in mind, we’re anchoring on download speeds as the dominant benchmark. So, when we say “fastest VPN,”, we mean, those that have the least impact on download speeds. In case it doesn’t apply to you, we’ve also the top performers in the other two categories.
Spies—and, more frequently, advertisers—can glean a lot about your movements online. By capturing your IP address, an observer can divine your approximate geographic location. With a VPN it's a different story. Because your web traffic appears to be coming from the VPN's server and not your computer or mobile device (yes, there are Android VPN apps and iPhone VPN apps), any observer will see the VPN server's IP address and not yours. That makes it much harder to correlate your movements across the web.
Initially, the routing table for each router includes only the networks that are physically connected. A RIP router periodically sends announcements that contain its routing table entries to inform other local RIP routers of the networks it can reach. RIP version 1 uses IP broadcast packets for its announcements. RIP version 2 can use multicast or broadcast packets for its announcements.
Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) is an encrypted authentication mechanism very similar to CHAP. As in CHAP, the NAS sends a challenge, which consists of a session ID and an arbitrary challenge string, to the remote client. The remote client must return the user name and an encrypted form of the challenge string, the session ID, and the MD4-hashed password. This design, which uses the MD4 hash of the password, helps provides an additional level of security because it allows the server to store hashed passwords instead of clear-text passwords or passwords that are stored using reversible encryption. MS-CHAP also provides additional error codes, including a password-expired code, and additional encrypted client-server messages that permit users to change their passwords during the authentication process. In MS-CHAP, both the client and the NAS independently generate a common initial encryption key for subsequent data encryption by MPPE.

Fortunately, there are some brave companies that are still trying to stay one step ahead of Netflix’s VPN catchers. Currently, Windscribe Pro is our top choice. The service delivers good speeds on its U.S. servers, and has a very simple approach to Netflix: Just select the “Windflix” connection from the desktop app or browser extension and you’re good to go. Windflix is still technically in beta, but it works well and there’s even a Windflix U.K. option if you’d like to experience Netflix from the other side of the pond.

Sadly, I engaged PIA, the number one rated and paid a "great price" for a 3 year service only to findout that dur to a recent SMTP abuses they no longer can be used when using Microsoft servers. So, all of my outbound email is rejected from Microsoft Servers due to this policy. In itself, fine, but as I enrolled in this service and while setting up the servie at no time was this mentioned nor, prior to a May 15 issue, was this a problem.
We'll go into greater explanation about these three metrics and how we collect them below. But choosing which is most important is tricky. Mostly, it depends on how you're using your internet connection. We assume that most people reading are major consumers of content. Reading the news, streaming movies, using BitTorrent, or listening to music on the web all require that your device pull down data more or less continuously. With that in mind, we've settled on download speeds as the most important benchmark.
There is only one reason the company got a 4.5 rating instead of a full five. That's because they do log connection information, although kudos for their clarity in explaining exactly what they do and don't log. We like that they offer a 30-day refund policy.  They got bonus points because, important for some of our readers, PureVPN supports bitcoin payments.That said, if you don't mind the slight dings on privacy and refunds, you're going like their blazing fast performance. Also, you can grow with them. If after some time, you need to scale up to business-level plans, the company has offerings for growth. Pricing is middle-of-the-road,at $10.95 per month and $69.00 for three year's service.Finally, we like that PurVPN has both Kodi and a Chromebook solution called out right on their Web page. In addition, PureVPN earns the distinction of being the first VPN service we've seen to fully implement the GDPR.
We have split our fastest VPN speed test into two parts; without a VPN connection and with a VPN. We will be testing VPN speeds from a US connection with a stable Internet connection. With VPN, we have chosen to connect to a location that is far from the United States, let’s pick the UK. It is important to understand that VPN speed is directly related to the distance of the connection. As the distance increases, chances are there that you might report slower VPN connection speed.
Latency normally results in a poor VPN connection. If you are connected to a VPN server that is far from your location, the chances are that your VPN speed will lag. An ideal way to turn your VPN account to a fast VPN connection is to choose your VPN location smartly. Your connections will become a high-speed VPN if you select a server that is near close to your original location, and it not overfilled.
We used to advise people to do banking and other important business over their cellular connection when using a mobile device, since it is generally safer than connecting with a public Wi-Fi network. But even that isn't always a safe bet. Researchers have demonstrated how a portable cell tower, such as a femtocell, can be used for malicious ends. The attack hinges on jamming the LTE and 3G bands, which are secured with strong encryption, and forcing devices to connect with a phony tower over the less-secure 2G band. Because the attacker controls the fake tower, he can carry out a man-in-the-middle attack and see all the data passing over the cellular connection. Admittedly, this is an exotic attack, but it's far from impossible.
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