VPN: setup. VPN connections in Windows, Android

This is the most unusual article in this issue. Its peculiarity is that I tried to publish it several months ago, but every time I submitted the issue I forgot to do it. The first time I forgot it on my work computer. I thought, no big deal, I’ll publish it later on the site. “Later” turned into three weeks. Sometimes I didn’t have enough time, sometimes I simply forgot. When I remembered, I looked at the calendar. It was just the beginning of the month, and I decided to publish it in the upcoming issue. I recorded an article from work on a flash drive and... forgot the flash drive at work. Has it broken down again? I didn’t want to hold the number for another day, so I gave up on the matter and set a reminder in my phone. I’m sure I won’t forget by the next issue? What do you think, by the time the next issue was due, I forgot it again. This time, as usual. I brought the article home, and when I was collecting all the articles in a pile to send to the layout designer, I forgot to copy it from the flash drive. I don’t think it’s necessary to tell the result? Here's the story. The main thing is that now the article is in its place, and you can finally read it. Enjoy reading!

What is a VPN?

Our magazine is read by many newbies in computer matters, so I consider it my duty to start with the most basic thing - with the definition of VPN. Understanding technology without knowing the basics will not lead to anything good. It's better to move gradually.

VPN is an abbreviation for Virtual Private Network, or in Russian - “Virtual private network" The essence of this wonderful technology is that it allows you to organize networks/multiple network connections over another network. Another network usually means the Internet, but a regular network can also serve this role.

If there is a network through which we can already connect to remote computers, then why bother with a VPN? It's actually simple. First of all, this is security. VPN connections are secure because... all traffic between them is encrypted. Consequently, even if an attacker manages to intercept your traffic, he will not extract anything useful from it. So the key point using a VPN- safety.

Let's consider another vital situation. Imagine that you need to connect to your corporate network. How to do it? If we're talking about about connecting to one computer, then the problem can be solved simply using the tools remote administration, of which there are a lot now. A striking example of such tools is the one already familiar to many - Remote Administrator or, as people say: “Radmin”. You install the server part on the computer with which you will connect, and install the client for yourself. Everything is brilliantly simple and, in principle, safe, because... Radmin encrypts its traffic well, so the attacker is again left out.

The use of a VPN is by no means limited to creating access to remote networks. This technology is used by many Internet providers today. For example, my provider provides free access to resources local network, and to access the Internet, you need to establish a VPN connection.

In general, VPN allows you to provide three types of connections - node-to-node, node-to-network and network-to-network. You can always read more about this on the endless Internet. If you can’t find literature, contact me and I’ll share useful links.

VPN tunnels

You could see this phrase in various literature and especially in the magazine ][aker. It has already repeatedly described the nuances of creating and non-standard use this technology. If you are interested in hacking and security, I recommend going to the official website of the magazine and looking at the electronic binder. 100% that you will find a lot of interesting things.

Let's return to our rabbits. Oh! I wanted to say VPN tunnels. So, VPN tunnels are usually called the channel that is formed as a result of connecting a VPN client to a VPN server. You already know that such a connection is secure and all data transmitted over it is securely encrypted. If you have ever seen various university textbooks on networks, they usually use the term “point-to-point channel.” The concepts of “VPN tunnel” and “point-to-point channel” are identical and you can use either one. Throughout the entire article I will use “VPN tunnel”. I like it better.

Peers, but those who are in Torrents

Another important term in the VPN field is peers. Those who use torrent trackers are probably aware of the meaning of this word in that environment. In VPN, this term is applied to computers that have established a VPN connection. Those. when you install from your PC VPN connection, you can safely be called a feast.

A little about encryption

Encryption is one of the key points in VPN. The topic is quite large and you can write more than one good article on it. I will not go into details and will only say that both peers that established the tunnel are responsible for encryption. For example, we have two networks connected via VPN gateways. This model can be schematically represented as follows:

Network A -> VPN Gateway A -> INTERNET -> VPN Gateway B-> Network B.

In this situation, the algorithm will be like this. Data from network A is transmitted to VPN gateway A absolutely unchanged. Then (already at the gateway) they are encrypted and transmitted through a VPN tunnel, forwarded, through an insecure network. In my example, the insecure network is the INTERNET. Having received an encrypted set of data, VPN Gateway B will decrypt it and send a clean set to Network B. Based on the above, we conclude that the data remains encrypted only during its transmission through the VPN tunnel. Once delivery is complete, the data is no longer encrypted.

Please note that encryption applies to the entire IP packet. The packet headers themselves (i.e., the sender and recipient addresses) are also replaced. The new recipient and sender addresses will be the VPN gateway addresses. Thus, when intercepting a packet, it will only be possible to determine the addresses of the VPN gateways, and not the addresses of the end clients of the internal network.

A little about the principles of VPN operation

In general, all VPNs adhere to a few general rules:

1. Identification of nodes before creating a VPN tunnel.

2. Determining for both clients a list of data encryption protocols allowed to be used. You understand that if I use the DES algorithm, and you use AES, then we simply will not understand each other and will not be able to exchange data. More precisely, you can exchange, but you cannot decipher.

3. After checking the encryption algorithms used (of course, if it was successful), a key will be created. In the future, it will be used in symmetric algorithm for encryption/decryption of data packets.

Let's practice

I conveyed the most necessary theory to you and now I need to try this whole thing in practice. When I wrote the first version of the article, I devoted it entirely to setting up a VPN server on Kerio WinRoute. Of course, I could have done just that - left everything as it is and not change anything, but on the very last day before handing over this issue, I decided to set aside a few hours of time and diversify the information. Start with the most simple example, which will definitely be useful for beginners, and in the next parts of the article we will consider more specific things, such as raising a VPN server using OpenVPN and Kerio Winroute. So, let's start with the simplest example - organizing a VPN tunnel between two computers running under Windows control XP. Important point. No additional software I won't use it. Everything will be done using standard means.

VPN tunnel for Windows XP

As I already said, we will start with the simplest. Not many people know that Windows XP has a built-in VPN server. Do you smell what it smells like? You can easily forward a tunnel to remote computer and enjoy all the joys of a VPN.

Let's not dabble in one thing at a time, but let's get down to business. First, let's learn how to accept external VPN connections, i.e. Let's prepare a VPN server. Sit down at the computer that will serve as a server and take the following steps.

1. START -> Settings -> Network connections.

2. Launch the New Connection Wizard.

3. In the first window (see Figure 1) select the item: “Install direct connection to another computer" and click "Next".

4. In the next window (Figure 2), select “Accept incoming connections”. Click "Next".

5. In the next window (Figure 3), the wizard for creating a new connection will ask you “Allow virtual private connections or not?” We are actually going to accept connections, so we select “Allow”. After this, click “Next”. It is likely that the appearance of your window will be different from what is shown in Figure 3. Don’t pay attention to this, just click “Next”. The next window should look like this.

6. In the next window (Figure 4) you need to define users who can connect. Choose from a list of existing ones or create new ones. Don’t forget, when you create a user, set a password. When finished, click “Next”.

7. Our efforts are nearing completion. At the next step, we are required to configure network parameters. You can leave everything as is. The only thing required is to configure the TCP/IP protocol. Select this item and click the “Properties” button. A window will appear in front of you as in Figure 5. Set the “Allow callers access to the local network” flag in it. Check the box “Specify TCP/IP addresses explicitly.” After that, write down the range “from” and “to”. I specified the following option here: 192.168.1.40-192.168.1.50. All clients that connect to us will receive IP addresses from this range. So, almost everything, all that remains is to uncheck the “Allow the caller to indicate their IP address.” That's it now. Click Ok and then “Next”.

8. The next step of the wizard is purely formal and all you have to do is click on the “Next” button.

That's it, now our VPN server is ready to accept connections. Note that we didn’t have to do anything complicated. Now let's see how you can connect to this server from another computer. This requires even fewer steps:

1. Launch the already familiar “New Connection Wizard”. After the first information step, select “Connect to the network at your workplace” (Figure 6). Click next.

2. Now you need to select the type of connection to create. Two options are available:
- Connection remote access
- Connection to a virtual private network.
It is not difficult to guess that we are interested in the second option (Figure 7).

3. Here we need to enter the name of the connection. Enter any name here. This makes no difference. Click on “Next” again.

4. At this step, the master will ask you to decide - “Is it required before VPN installation connections connect to a public network. For example, if the VPN server is located on the Internet, then you first need to establish a connection to the Internet, and only then try to connect to the VPN server. For myself, I chose the “Do not dial pre-connection number” option.

5. This is the final step. Here you need to enter the IP address of the VPN server. My VPN server is on the local network and has the address 192.168.1.33. That’s it, click “Next” and then you’re done.

Try testing our connection. If you did everything correctly, the connection will be established and you will receive an IP address from the range we have defined. You can show dexterity and share the Internet on a computer server. Thus, you will have the opportunity to surf the Internet over a secure connection.

Connecting Complete

That's all for today. Conduct experiments with established connection– try to find a practical application for it (for example, organize Internet access for a VPN client), and in the next issue I’ll tell you about setting up and practical application OpenVPN. Good luck with your research.

Written by Igor Antonov aka Spider_NET

Many users who need to visit a blocked site or simply change their IP address use a VPN. In order to perform this action, you can use any of the four possible options. Each method will be described in more detail later in the article.

How to Set Up a Virtual Private Network

To begin with, you must know exactly for what purpose you need to install a VPN. To simply unblock the browser, it will be enough to specify certain settings in the menu. If you need to run more serious software, you will have to install a special application.

Method 1: Windscribe program

There are quite a lot of free utilities for setting up a VPN. They come with different interface, may have certain traffic restrictions and so on. But despite this, almost all work according to the same principle. You can take a closer look at the actions that need to be performed using the Windscribe program as an example.

1. 1. On the page in your browser, download the utility by clicking on the button "Download Windscribe".

1. 1. Select "Express installation", in order to avoid entering additional parameters.

1. 1. When the window appears « Windows Security» click the key "Install" to confirm installation.

1. 1. Open the program as soon as the download is complete.

1. 1. Log in to your account or register a new account.

1. 1. Enter your email, login and password in the appropriate lines.

1. 1. Go to email. You should receive a letter in which you need to confirm your registration with a button "Confirm Email".

1. 1. Go to the program and click on the button to enable the VPN connection.

1. 1. In the pop-up window, click section "Home network".

1. 1. Select the desired location or leave the default country.

Many free programs To establish a virtual private connection, they have traffic limits. If you plan to use similar utility regularly, you should consider purchasing the full version.

Method 2: Browser Settings

This connection setup option is popular because of its simplicity. You can install the extension in your browser very quickly, in just a few clicks. The rest of the article will discuss all the actions that need to be performed, using the Hola utility as an example.

1. 1. IN Google store find the application and install it.

1. 1. In the window that appears, press the key "Install extension".

1. 1. Select the required country after the corresponding tab appears on the screen.

1. If you want to specify a country that is popular in your region, simply click on the pop-up menu.

This is not the only browser extension option. You can choose any of the existing add-ons, all steps to connect will still be the same.

Method 3: Tor

If you use the Tor browser, you can be sure that your anonymity on the Internet is preserved. In addition, it allows you to use the .onion pseudodomain. To transmit the signal, a number of addresses are used, each of which is an active user. To install the browser follow these steps:

1. 1. Start the installation by going to the official website.
   2. Select required language and click on the key "Download".

1. 1. After downloading is complete, open installation file and choose where to save the browser.

1. 1. Once the process is complete, open your web browser.

1. 1. You can get started by selecting an active circuit or creating new personality. This is necessary to change all IP addresses.

Naturally, this browser not unique. Finding a similar option with similar functionality is not difficult.

Method 4: standard OS features

If you registered on services that provide VPN services, then you can establish a connection using standard means OS. This must be done this way:

1. 1. IN "Start" find the column "Control Panel".

1. 1. In the proposed list, open the section "Network and Sharing Center".

1. 1. When the new window is displayed, select the line "Set up a new connection or network".

1. 1. Next, go to the connection method, which is called "Connecting to the workplace".

1. 1. Now click the item “Use my Internet connection (VPN)”.

1. 1. Enter the address in the appropriate fields that was indicated when registering for the service. Click "Further".

1. 1. In the tab that appears, enter all necessary information, which you created when registering for the service. Click on the button "To plug".

1. 1. Close the window that appears, after which you will be taken to the tab "Change adapter settings".
   2. Click on a section "VPN connection" right click mouse and open "Properties".
   3. Go to the column "Options", check the last item in the block "Dialing options". Click at the bottom of the window "PPR parameters...".
   4. Disable all partitions specified in the window that opens. Click the button "OK".
   5. Go to section "Safety", in the first item select "Tunnel Protocol", in the next paragraph “optional”, in last line "Microsoft Protocol" uncheck the box.

1. Now follow the steps specified in step 9 again and select the line from the tab that appears "To plug".
2. Enter the requested information in the window and click the button "Connection".

After completing all the steps described, you can continue working in the OS using virtual private communication.

This article described in detail all the methods of free VPN connection on a PC. They work on different principles. Use this connection possible for various situations. Once you have familiarized yourself with each connection option in detail, you can choose the one that suits you best.

In this article I will talk about how to set up your VPN server to bypass any unreasonable blocks, and configure your computer (Windows) and phone (Android) to work through this server. A nice bonus - this server will free first two month.

What is a VPN and why is it needed?

Basically, VPN is a technology that allows you to connect devices into a network on top of another network. For example, on top of the Internet. But let's not bother with terminology, we'll just make sure that you surf the Internet through a server in San Francisco or London or Amsterdam, etc. In general, where there is no Rostelecom.

Why do you need your own VPN (or why others are bad).

Of course, you can use someone else's paid or free VPN servers. Thousands of them!

I clicked on the first link and looked at the prices - not too optimistic.


So, the disadvantages of other people's VPNs:

1. Price - good VPNs they cost good money.
2. Listening to traffic - you don’t know who runs the VPN, but he knows what sites you go to, what passwords you send, who you communicate with, etc. Https, of course, partially solves this problem, but not all sites have switched to https yet, and the Man in attack remains the middle- the VPN owner can return his certificates and certification authorities to you, initiate a transition to a more old version SSL, give you their websites under the guise of the ones you are looking for, etc.
3. VPN can be “dirty” - perhaps before you or in parallel with you, the same VPN server (and its IP address) is used for its business by the Massachusetts Pedophile Association - and, besides, these men (and this IP address) have already is being tracked by the FBI.
4. The VPN may be overexposed - for example, spam was sent through it and it has already been blacklisted - and you will not be able to log into your favorite site because you are already banned.
5. Traffic modification - if your traffic is not encrypted, or the VPN owner can decrypt it, then the sites you request will be returned with “extra banners” or changed BTC and ETH addresses for payment, etc.
In general, in a nutshell, if you just want to hang out on entertainment sites, then take any free one - sometimes they won’t work, sometimes they will be very slow, but it’s free.

If you need a VPN for work, take a good paid one.
If you are paranoid, or you want to make money on rent, or you are just interested in how it’s all done, move on.

Deploying your VPN server

So, we need our own server on the Internet. In this article I’m looking at Digital Ocean, but any hosting where you can get a VDS will do. Simplest tariff plan- 5$/month, we don’t need more.
If you register using my link (if it doesn’t work, try this one), the site will loan you $10, which should be enough for two months of using the VPN for free.
What’s nice is that the IP will be yours and only yours, and no one else will go through your server (unless you allow it yourself, more on that later).
Follow the link above, register (when registering you need to indicate the card number, but nothing is debited from it), find the Create button at the top right and select Droplets


Choose Ubuntu and the cheapest tariff plan for $5


Select a region (San Francisco in the picture, but NO!! Take Europe- England, Germany, Holland - the signal across the ocean is slow), well, you can register the hostname so that it would be clearer for you - I wrote the vpn. Click Create


He will think a little and tell you the desired image, and you will have a droplet (virtual server)


An IP address, login and password will be sent to your email.


I don't hide them, because... I’m creating a droplet exclusively for the article, then it will be destroyed.
Now we need to connect to our new server and configure it. Download putty program(link), run it, enter the IP address from the letter and press Enter


Click "Yes"


Enter the username and password from the letter. The password will not be displayed, this is normal. Just copy it in the letter, right-click in the putty window and the password will be pasted, then press Enter. Or just retype the password from the letter.


You are logged into the server, but your password needs to be changed. To do this, you are asked to indicate your current password, and then enter a new one (twice)


It doesn’t allow you to enter simple passwords, so you need to come up with something long - but this will benefit you, in any case - it will be difficult for hackers to hack you


Now it's time to actually deploy the VPN. Run the command

apt - get install pptpd

If asked for confirmation, press Y

Now run the commands (as before, you can copy everything from here and then right click there and it will paste)

echo "localip 10.0.0.1" >> /etc/pptpd. conf echo "remoteip 10.0.0.100-200" >> /etc/pptpd. conf echo "ms-dns 8.8.8.8" >> /etc/ppp/pptpd - options echo "ms-dns 8.8.4.4" >> /etc/ppp/pptpd - options echo "net.ipv4.ip_forward = 1" > > /etc/sysctl. conf sysctl - p iptables - t nat - A POSTROUTING - o eth0 - j MASQUERADE && iptables - save

Now you need to come up with logins and passwords under which you can connect to the VPN. For example, user VasyaPupkin, password qwerty123. Substitute the passwords you created into the following command:

echo "VasyaPupkin pptpd qwerty123 *">>/etc/ppp/chap - secrets

And do it. If you want several users, then run the appropriate command for each.
Well, in the end, we restart the VPN.

service pptpd restart

All, VPN setup finished, you can use it.

Connecting to a VPN server - Windows

I'm giving an example for Windows 10, but you can always Google "Windows pptp" for instructions for any other OS version.
Start, look for VPN, find “Change virtual private networks”

Click, add a VPN connection


As the server address, we indicate the IP of our server (from the letter), login and password - those that we ourselves came up with


Now we have a connection, click on it, click connect


If you did everything correctly, the status should change to “Connected”


We check:


The IP has changed. We check access to sites:
https://exmo.com/ - opened


Checking telegram:


Works! Let's turn off the VPN for a while (click on the network connection icon):


Telegram is dead :) I'll turn it back on so that everything works.

Now about connecting to VPN from your phone.

I use Android, 6.0.1, from Samsung, I think there will be something similar in other versions and on iOS - it must be, IMHO).
So let's go to settings - connections - other settings - VPN

Click add VPN, indicate the IP of your server, leave the type as PPTP

Click save - and it appears in VPN list. After that, click on it, enter your login/password (save if you don’t want to enter it manually every time):

and, if everything is done correctly, they will write to you that it is connected, and a key will appear in the tray, like this:


Congratulations, you have connected to your VPN server!]

Conclusion

Now that you have your own VPN server, and you decide where to go and what to watch, you can puff out your cheeks and tell your friends that you have the opportunity to get a fast, reliable VPN for only $5 a month... And give access to the same server by dozens of people (under different logins and passwords). And make a beautiful website with prices, and advertise on it, etc.

And very important point- I’ll tell you now :) I prepared most of the article on Saturday, I was going to post it on the site, but circumstances distracted me and I couldn’t finish it and got distracted. And you remember - I created VPN user VasyaPupkin and the password qwerty123 - both are in the dictionary of every novice hacker.... In general, on Monday I received a letter from DigitalOcean saying that they had to cut off my droplet from the network, because... there was wild traffic and some sites got DDOSed)) In general, the service with a crappy login/password didn’t last even two full days, the passwords were picked up and posted on different sites with lists free VPN:) Another server - where I set normal logins/passwords, it works fine for several weeks. So don't waste your time, come up with ideas good passwords, otherwise you won’t be the only one using your VPN!

Well, I hope the length of the article didn’t scare you - it looks complicated and cumbersome, but in reality there’s only 5 minutes worth of work, well, maybe a little more if you haven’t dealt with Linux and so on before. But, even so, after suffering a little, you will get a good useful thing, and at the same time learn something new)

I wish that everything works out well and quickly for everyone, if something is wrong, write in the comments, we will figure it out and fix it)

Using a VPN is one of the easiest and most reliable ways to hide your real location and protect personal data and messages on your smartphone, computer or tablet from theft. At the same time, you do not need complex setup steps or high costs. Sites and services will be sure that you are in the country where the VPN server is installed.

In this article we will tell you what a VPN is and how to set it up on an Android smartphone.

What is VPN

Virtual Private Network - virtual private network. The term means creation closed network within a public domain, such as the Internet. Initially, a mechanism for creating virtual private (private) communication spaces created to provide greater security. By logging into a VPN server, you find yourself inside a network space protected from external attacks.

The degree of trust in this technology can be judged because it is actively used by large corporations to create their own protected distributed networks. They trust sensitive data to the strong cryptography built into it.

When logging into a virtual network, the user does not need to physically connect any additional wires. He simply enters his username and password on the VPN server. From this moment on, all requests to Internet resources are made on behalf of the virtual IP address issued upon entry.

Some experts compare working in a virtual private network to driving through a tunnel located under a busy highway where ordinary users move. Your channel is encrypted and cannot be attacked from outside. But you still use the same hardware and cables as non-secure users.

How to set up a VPN on Android

There are two options to enable VPN on Android: install the application from Google Play or set up a login and password in Settings. Below we present these methods in order of increasing complexity for the user.

Installing the VPN app

We recommend starting with the program Turbo VPN . It does not require registration or entering passwords and is free for most typical application scenarios: web surfing, instant messengers, and so on.

The user is required to:

1. After a 3-second wait, the traffic is already redirected to the server selected by the application itself.

1. To “change citizenship”, in the program settings you can select a server from a specific country. Just click on the flag icon in the top right corner.

1. Here in Settings you can set the function automatic connection when starting the application.

1. It is convenient to control the operation of the application using the messages displayed in notifications. When you click on them, the program reports the channel parameters: download and upload speed, the total number of transferred data in MB.

1. If you need to return to normal mode work with a real IP address, click on the program icon in the notification window and turn off the VPN with the button with a cross.

Currently, Android users have access to dozens of VPN programs. They are:

• Paid. Traffic is charged, the user pays a fixed amount of the cost of the program upon installation or uses paid subscription for a month. For example, application OpenVPN Client.
• Conditionally free. Basic features are free, but you will have to pay extra for speed or traffic beyond the limit. You may also be charged for additional components and opportunities. In particular, this is what developers doVPN Master-Free unblock proxy.
• Free. The existence of such projects is paid off by advertising, which you will view from time to time. They are very popular. Yes, application Hotspot Shield Free VPN has over 500 million downloads.

Using standard Android VPN connectivity

Modern versions of Android support work via VPN without third party applications. In Settings, find Connection.

We go to the VPN setup and management category.

Please note that after installing the Turbo VPN application, the menu already has one setting for working with a virtual network. To make your own, click the Add button.

To correctly fill in the server name, login and password, you will need to register on one of the free or paid services virtual networks. For example, you can use the service ExpressVPN . Her work is possible at 90 different countries, torrents are not blocked and high-resolution video streams up to 4K are supported.

In Russia it is considered the fastest and most inexpensive VPN99 . Subscription fee at the time of writing this article is no more than 1 US dollar per month.

A search in Yandex or Google will help you choose such a service. When comparing services, focus on their reliability and speed, as well as user reviews. You can organize your own VPN server yourself. Even a novice system administrator can handle this job.

What can you use a VPN for?

Typical scenarios where using such services is useful:

• Protection your personal data from websites and online stores. Traffic to the server is encrypted, the real IP address cannot be determined. At the same time, anonymity is ensured not only in the Internet browser, but also in instant messengers and other programs on your phone.
• Change country and region. You can pose as a user from the United States or European countries to receive special prices and terms of service on certain Internet resources.
• Bypassing blocked resources. Using a VPN is the main way to bypass services blocked in your country. This is how Ukrainian users bypass VKontakte and Yandex, which are blocked in Ukraine. Russian users Using a VPN they can work with blocked Telegram.
• Saving mobile traffic. In some cases, the protocols used for working with VPN servers make it possible to reduce the volume of charged traffic and reduce communication costs.

Limitations of free VPN services

Advantages free services obvious. There are enough of them to meet the needs regular user Internet, using a web browser, instant messenger and other applications that do not consume too much traffic.

But it’s worth remembering that free servers have a number of limitations:

• Low speed and traffic restrictions. In many cases, torrents and other programs that require a large amount of transferred data are blocked. Operators of free servers are trying in this way to reduce the load on the equipment and encourage users to switch to paid plans.
• Low reliability. No one guarantees that the server will be available 24 hours a day, 7 days a week. Users sometimes have to change the server due to it being closed or overloaded with clients.
• Advertising. Often to cover your costs free operators resort to displaying advertising and paid advertisements to their users.

Advantages of paid VPN servers

• High reliability and availability of technical support. This allows you to count on stable operation of the service and maintaining the confidentiality of user data. Do not forget that the server itself knows your real IP address and some other information.
• No restrictions By streaming video V high resolution. The power of these companies is incomparably higher than that of free ones; they can provide their customers with higher data transfer speeds.
• Confidence that in the near future the server will not be closed.

From a legal point of view, the use of VPNs is not yet prohibited. Virtual personal networks will allow you to maintain anonymity on the Internet and provide a number of other advantages. But using the blocked resources themselves is associated with a certain risk. This should be remembered.

How to set up a VPN for Telegram or how to bypass blocking

Bypassing blocked resources is one of the popular uses of VPN. The principle is simple. Telegram is blocked in Russia, but not in the USA. You log into a virtual network server located in the United States and gain access to any resources permitted in that country.

Telegram also has a special proxy bot that will help ensure that the messenger works under blocking conditions without redirecting all smartphone traffic to the VPN. The bot gives you a link to register. After clicking on it, the user receives the server address and port, username and password.

To set up a proxy yourself, you need to:

Especially for our readers - do repost this entry and leave

Every year electronic communications are improving, and increasingly high demands are placed on information exchange for speed, security and quality of data processing.

And here we will take a closer look at the vpn connection: what it is, what a vpn tunnel is needed for, and how to use it vpn connection.

This material is a kind of introductory word to a series of articles where we will tell you how to create a vpn on various operating systems.

VPN connection what is it?

So, a virtual private network vpn is a technology that provides a secure (closed from external access) connection of a logical network over a private or public one in the presence of high-speed Internet.

This network connection computers (geographically distant from each other at a considerable distance) use a “point-to-point” connection (in other words, “computer-to-computer”).

Scientifically, this connection method is called a VPN tunnel (or tunnel protocol). You can connect to such a tunnel if you have a computer with any operating system that has an integrated VPN client that can “forward” virtual ports using the TCP/IP protocol to another network.

Why do you need a VPN?

The main benefit of a vpn is that negotiaters need a connectivity platform that not only scales quickly, but also (primarily) ensures data confidentiality, data integrity, and authentication.

The diagram clearly shows the use of VPN networks.

Rules for connections over a secure channel must first be written on the server and router.

How VPN works

When a connection occurs via VPN, the message header contains information about the IP address of the VPN server and the remote route.

Encapsulated data passing over a shared or public network cannot be intercepted because all information is encrypted.

The VPN encryption stage is implemented on the sender’s side, and the recipient’s data is decrypted using the message header (if available). shared key encryption).

After the message is correctly decrypted, a VPN connection is established between the two networks, which also allows you to work on a public network (for example, exchange data with a client 93.88.190.5).

Regarding information security, the Internet is extremely unprotected network, and a VPN network with OpenVPN, L2TP / IPSec, PPTP, PPPoE protocols is completely secure and in a safe way data transmission.

Why do you need a VPN channel?

VPN tunneling is used:

Inside the corporate network;

To unite remote offices, as well as small branches;

For digital telephony services with a wide range of telecommunications services;

To access external IT resources;

For building and implementing video conferences.

Why do you need a VPN?

VPN connection is required for:

Anonymous work on the Internet;

Downloading applications when the IP address is located in another regional zone of the country;

Safe work in a corporate environment using communications;

Simplicity and convenience of connection setup;

Provisions high speed connections without interruptions;

Creating a secure channel without hacker attacks.

How to use VPN?

Examples of how VPN works can be given endlessly. So, on any computer on the corporate network, when installing a protected vpn connections you can use mail to check messages, publish materials from anywhere in the country, or download files from torrent networks.

VPN: what is it on your phone?

Access via VPN on a phone (iPhone or any other Android device) allows you to maintain anonymity when using the Internet in public places, as well as prevent traffic interception and device hacking.

A VPN client installed on any OS allows you to bypass many of the provider’s settings and rules (if the provider has set any restrictions).

Which VPN to choose for your phone?

Mobile phones and smartphones running Android OS can use applications from Google Playmarket:

• - vpnRoot, droidVPN,
• - tor browser for surfing networks, aka orbot
• - InBrowser, orfox (firefox+tor),
• - SuperVPN Free VPN Client
• - OpenVPN Connect
• - TunnelBear VPN
• - Hideman VPN

Most of these programs serve for the convenience of “hot” system setup, placement of launch shortcuts, anonymous surfing Internet, selecting the type of connection encryption.

But the main tasks of using a VPN on your phone are checking corporate mail, creating video conferences with several participants, as well as holding meetings outside the organization (for example, when an employee is on a business trip).

What is VPN on iPhone?

Let's look at which VPN to choose and how to connect it to your iPhone in more detail.

Depending on the type of network supported, when you first start the VPN configuration on your iPhone, you can select the following protocols: L2TP, PPTP and Cisco IPSec (in addition, you can “make” a VPN connection using third-party applications).

All of the listed protocols support encryption keys, user identification using a password and certification are carried out.

Among additional functions When setting up a VPN profile on an iPhone, you can note: RSA security, encryption level, and authorization rules for connecting to the server.

For iPhone phone From the appstore you should choose:

• - free application Tunnelbear, with which you can connect to VPN servers in any country.
• - OpenVPN connect is one of the best VPN clients. Here, to launch the application, you must first import RSA keys via iTunes into your phone.
• - Cloak is a shareware application, since for some time the product can be “used” for free, but to use the program after the demo period has expired, you will have to buy it.

VPN creation: selection and configuration of equipment

For corporate communications in large organizations or associations of offices remote from each other, they use hardware equipment that can support continuous, secure work on the network.

To implement VPN technologies, the role of a network gateway can be: Unix servers, Windows server, network router and the network gateway on which the VPN is installed.

The server or device used for creating vpn enterprise networks or vpn channel and between remote offices, must perform complex technical problems and provide a full range of services to users on both workstations and mobile devices.

Any router or VPN router must provide reliable operation on the network without freezes. And the built-in VPN function allows you to change the network configuration for working at home, in an organization or in a remote office.

Setting up VPN on the router

In general VPN setup on the router is carried out using the router's web interface. On “classic” devices, to organize a VPN, you need to go to the “settings” or “network settings” section, where you select the VPN section, specify the protocol type, enter the settings for your subnet address, mask and specify the range of IP addresses for users.

In addition, to secure the connection, you will need to specify encoding algorithms, authentication methods, generate agreement keys, and specify DNS server WINS. In the “Gateway” parameters you need to specify the gateway IP address (your own IP) and fill in the data on all network adapters.

If there are several routers in the network, you need to fill out the VPN routing table for all devices in the VPN tunnel.

Here is a list of hardware equipment used to build VPN networks:

Dlink routers: DIR-320, DIR-620, DSR-1000 with new firmware or Router D-Link DI808HV.

Routers Cisco PIX 501, Cisco 871-SEC-K9

Linksys Rv082 router with support for about 50 VPN tunnels

Netgear router DG834G and routers models FVS318G, FVS318N, FVS336G, SRX5308

Mikrotik router with OpenVPN function. Example RouterBoard RB/2011L-IN Mikrotik

VPN equipment RVPN S-Terra or VPN Gate

ASUS routers models RT-N66U, RT-N16 and RT N-10

ZyXel routers ZyWALL 5, ZyWALL P1, ZyWALL USG