A virtual private network (VPN) may confuse some people. At it's core, a VPN is a private network that is made available to authorized users from the internet. Examples of a private network would be the network at your work, at college, or government locations.
Those networks have internet access, but the internet does not have access to them, hence the term private network. The private network becomes virtual when you are able to access it from the internet. The internet still does not have access to the private network, but your computer does. As far as the private network is concerned, your computer connection is at work or school.
When you connect to a VPN, you are connecting to a set of servers over the internet. This process is known as tunneling. Anything you do on the internet will go through these servers. All of this data is encrypted, which provides great privacy for you.
As far as your internet service provider knows, you're connecting to some IP address. They cannot see what the data is or anything.
The most important, and obvious, reason is security. As we stated above, all of your internet data is encrypted once you have created that tunnel. Hackers, for example, would not be able to intercept your internet browsing activity. Hackers will often attempt to do this when you use public WiFi in places like coffee shops and airports. If you make a purchase with your credit card on public WiFi, hackers could get a hold of your credit card number. This is why you should use a VPN.
A secondary benefit, which ties into security, is privacy. Because all traffic is encrypted, all data secure and private. What you search for, watch, read, or listen to is your own business. You ISP and hackers will not know what you are doing online.
VPNs will not, however, protect you from tracking by various website trackers, such as cookies.
VPN provides encryption to network traffic. It ensures the communication cannot be easily eavesdropped/tampered with by adversaries. It does not impact application features like cookies. So yes cookies can still be set on your browser if you are tunneled through VPN.Ximning Ou from the University of Southern Florida
In order to prevent these tracking efforts, you can surf the web with your browser's incognito/private mode. Another option would be to install an extension that prevents this, like ghostery.
Another reason for using a VPN? Virtual locations. Many providers will have servers in multiple locations. This was an option many Netflix users chose to access content that was not available in their region. Just because content has a block in your country, does not mean it is in another country. All you need to do is tunnel into a VPN server in a country that does not have the block, and you will have access.
The same works in reverse too. For example, you're traveling out of the country but your bank blocks access to users outside of your homeland. You can use your VPN to tunnel to a server located back home to gain access.
On a side note, just because using VPN allows your to potentially bypass restrictions, do not forget you are still operating under your countries laws. VPNs will make you anonymous online, not invisible. If you start doing anything illegal or suspicious. Given enough time and resources, government agencies could, in theory, still find you.
Today, there are tons of VPN providers to choose from. Some providers are great, some are not. Below are some things to consider when choosing a VPN provider:
One of the biggest drawbacks is internet speed. Depending on the provider, you will see reduced internet speeds. Sometimes, the reduction is small, other times its large. It all depends on the number of users connected to the same server as you, the location of the server, and the providers setup. Longer distances between you and your VPN server means longer distances for data to travel in order to reach to the internet.
A secondary, and minor, issue is that when you use a VPN as a virtual location, you can see some issues while shopping. Say you live in the US, but have a connection through a tunnel in the UK. While shopping online, your pricing may show in pounds instead of US dollars. The simple solution is to use a server in your country while shopping online.
Using a VPN is becoming more of a necessity each day. The krack attack has proven that access to home WiFi traffic can occur. Connecting to a VPN service protects you from this vulnerability. Ensuring you have a good VPN provider will help ensure you are better protected.
We all pay a lot of money for our internet access and blazing fast internet speeds. What's worse is a vast majority do not check to see if they are getting the speeds they pay for. The reason being is most users will not realize they have an issue because the internet just works when browsing the web. People will take notice when trying to watch YouTube or Netflix and they get stuck buffering more. Internet Service Providers (ISPs) have instilled "heavy usage" hours that most people will write of issues as that. You should not do that and you should always ensure that you are getting what you pay for.
One of the first things you need to do when testing is check your bill and see what you are speed package you are paying for. Most ISPs will also state that your package are for "speeds up to XYZ Mbps." This gives ISPs some wiggle room on the speeds they provide to you. Typically, most ISPs will state that 20% speed difference is normal, especially during peak hours. Once you know the speeds your are paying for, you can now run some tests to ensure you do get those speeds. For this article, we will assume you are paying for speeds up to 150 Mbps.
When testing your internet speeds it is best you use a desktop or laptop with a wired connection. Most modern day desktops and laptops will have a gigabit connection. You will want to also check that your router supports a gigabit connection as well, which most modern day routers do. It is best to consult your owners manual for both devices you use during your tests. If you do have to test via wireless, make sure your router supports wireless-ac and that your wireless device supports that connection type too. Wireless-n devices speeds tests are not reliable for internet speeds over 150 Mbps, because they only support up to that speed.
There are several factors that could impact your internet speeds. Maybe your router does not support gigabit speeds? The wire for your network is bad? Your ISP truly has some network congestion? The speed test website is having issues? The point of all this testing is to attempt to find slow spots in your network and to see if they stay constant or only occur during certain times / days of the week.
Point and case would be if you are paying for up to 150Mbps and your speed test results are showing you are only get around 80Mbps, then there is a problem. And you need to address it with your ISP, especially when you are paying a small fortune for speeds than that.
At this moment, let us assume you are currently getting speed test results close to what you pay for. A week later your speed tests start to change.
You should do weekly speed checks for your network to ensure you are always getting what you pay for. There is nothing worse then not getting your money's worth.
After a speed test, compare it to what your ISP's plan states you should be getting. Is it with in 20% of that speed? If you are paying for 150Mbps, your 20% margin is 120-150Mbps. If your speed test results are within that range, then that is considered normal. Note this in a report that you keep. Now you can perform the same type of test again in about a week or so, and note any changes. When you do see come noticeable drops in speed, think about the following items to help troubleshoot:
If you determine the fault is with your ISP. Give them a call and talk to them about your findings. One thing that goes a long way is to remain calm and be respectful about it. Screaming and yelling will get you nowhere. Ask them how they are going to help resolve the issue for you. Maybe they have an area wide issue? The line from the tap to your modem is bad? There are several factors that could cause the issue, but a tech on site or over the phone should help track that down. Remember, the data you have collected from your speed tests can go a long way. Never just talk about one speed test, always include several speed tests from more than one day.
Now, if the speed problem is on your end, troubleshooting can be easy or difficult. The difficult depends on you and your knowledge of the devices and equipment that makes up your network. Maybe the modem is old or does not have the rating to handle the speed your ISP provides. If that is the case, you will need to purchase a new modem. Maybe a network cable in your home is bad? Sometimes a firmware update for your router will resolve the issue.
In the end, you do not want to waste money on your internet service if your ISP is not providing you with the speeds you pay for. Troubleshooting is never a fun task, but wasting money is not fun either. Many people do not pay attention to their internet speeds, just as long as "it just works." Do not be one of those people, and always ensure you are getting the performance you are paying for.