What is Open VPN. OpenVPN: Creating a full OpenVPN Gateway

OpenVPN - technology allowing an open source code based on the VPN network between the client and the server, the site and the site, on top of the Internet itself. Created by James Jonan on April 10, 2002 OpenVPN is still widely used by users in order to encrypt the traffic and the safe use of the World Wide Web. Moreover, the popularity of technology is growing from year to year.

Working through TCP / UDP ports and SSL / TLS OpenVPN protocols have exceptional ease and simplicity in terms of settings and installation. Cross-platform makes it possible to install the client to any windows version (Including 2000 and XP), Linux, Mac OS, Solaris, Open, Net and FreeBSD without fundamental changes in the configuration and architecture.

Operation principles OpenVPN:

Using the client / server architecture, where OpenVPN is installed on each node of the virtual private network, provided that one of the nodes is the server, the rest - customers
Traffic encryption that passes through the tunnel created with the participation of one of the TCP or UDP ports
Three types of authentication - static keys, certification, login / password

The first option in the setting is quite simple, but implies that the only key will encrypt and decipher the traffic. So, in the case of the loss of the key, the attacker will be able to easily decode the data. In the case of certification and login / password, an SSL technology is used to protect the information in OpenVPN. More difficult in the setting and slightly slower in work, because The server is waiting for confirmation when passing packets, but it is extremely reliable.

Using VPN in private user environment facilitates a special OpenVPN GUI client. What is OpenVPN GUI? This is a graphical interface, tool allows you to work with VPN on personal device. The GUI client provides a small size program, with which a user can select a connection server, establish a connection with a virtual private network, see the connection log, etc. During the operation of the GUI hides in the tray and does not load the system at all.

A little more about OpenVPN, SSL and IPSec

Before the SSL appearance, the IPsec protocol was the only tool with which it was possible to encrypt the data in the network site and client-server networks. Fortunately, in the 90s monopoly disappeared, because Netscape campaign presented the first version of the SSL protocol, the current version of which is more often called TLS. With it, it was possible to encrypt data with the participation of the open keys mentioned above (authentication or login / password). And today you can say for sure that due to the relative simplicity of the OpenVPN SSL protocol is used not only to protect the HTTP data, but also to build a VPN type client server.

What is a VPN brief? This is a virtual private network that represents a tunnel between two devices (client-server or point-point) and operating over another network (for example, the Internet). Determining factors for a secure VPN are confidentiality and encryption, integrity of the transmitted information, as well as authentication - objects must be confident of each other's authenticity before traffic transmission. It is for encryption and authentication that the IPsec and SSL libraries are responsible. However, in spite of similar tasks, the protocols have fundamentally different ways to solve problems.

IN operating systems OpenVPN and SSL behave like standard applicationsThat facilitates the setting. IPSec requires the update of the OS kernel, which leads to obvious difficulties - to work with the protocol, you need to refine the operating systems on each device used
Since IPsec is closely related to the core failure in the work or programming can lead to severe consequences. The system can get critical damage, and hacking an attacker - administrator rights. With OpenVPN it is impossible, because The client works in the user's space and does not affect the operating system.
With SSL, much easier to work in the Firewall plan. IPSec requires changes to filter rules and solve multiple problems
OpenVPN Easily transfer - in many cases enough of the usual copy, which cannot be said about the complicated IPsec

All this has long led to the fact that in the segment VPN Services Type The OpenVPN client server finally displaced the IPsec protocol. We can say that IPsec is one of the stages of development of VPN technologies and at the moment an order of magnitude is inferior to a safer, modern and convenient OpenVPN. In the dry residue, IPSec has no significant pretension to OpenVPN at the moment, there is simply no. Setting up the OpenVPN client takes no more than a minute, and the creation of connections and a few seconds are only necessary to download client configs and place them in the appropriate program folder. In addition, when using OpenVPN, you do not need to configure anti-virus programs and network screens for stable traffic exchange with a VPN server, which you will not say about IPsec. All users concerned about the confidentiality of their data should understand this and give preference to more reliable solutions.

And just a little about OpenVPN and PPTP

The next OpenVPN can be called the technology developed by Microsoft in 1999 - PPTP, which is translated as a "point-point tunneling protocol". This is another type of VPN connection available from all submitted today. However, it should be immediately noted that the technology is considered vulnerable and more unstable compared to OpenVPN:

PPTP has a 128-bit key, and OpenVPN from 1024 to 2048
PPTP requires support for the GRE47 protocol, and OpenVPN works with any Internet connection
PPTP, like IPsec, for stable operation requires setting network screens, antiviruses and firewalls.
PPTP via Gre incorrectly works under NAT, and OpenVPN works without complaints

Many impracts the fact that for PPTP in Windows Wednesday is not required softwareBut in fact due to work through the GRE connection the connection stability is much lower than in the case of OpenVPN. The reason for this is NAT-E. GRE is a network-level protocol, which is why firewater screens Block most of the joints that force the use of such a bums like PPTP Passthrough by means of the so-called port forwarding-A, or ports. As PPTP has already been mentioned above - the technology outdated and was not originally calculated on the use of under NAT, whereas in OpenVPN these nuances are taken into account and no problems arise. According to the result, the user may need to perform the router settings and ultimately will leave more than the client's OpenVPN installation.

Considering the above, it is obvious that OpenVPN multiplyingly exceeds the "competing" solutions in VPN, since it is developed by non-companies, but by people for people through OpenSource, in connection with which it is worthy of special attention from users. What prevented you in other cases here is probably already decided.

The Internet firmly entered the life of the average man. Communication in interest, acquaintance with new people, receiving additional skills and knowledge, search necessary information - All this is just the beginning of a long list of what can be done on the network.

Internet yesterday and today

Another fifteen years ago no one could imagine how much we will give rise to a global web. There was a new disease - the Internet addiction, from which recently emerged specialists treat. An previously unknown business market has opened. Expanded horizons for marketing and advertising. Knowledge and technology have become available, more than ever before. What do people in the network do today? Someone publishes interesting thoughts in the format of the blog, someone has business, and someone passes online learning in a prestigious university. Everyone has their own interests, but there are general concepts and phenomena with which a practical any user has come across early or later. These are viruses I. spyware, protective software and proxy server social networks, VPN. It is about the last and will be discussed in the article.

What is VPN.

VPN is a network inside the network. An additional connection that is created on top of the already existing one. Most often it is a separate space inside the Internet, a protected information island in the ocean of free access. What is the difference between the VPN zone or tunnel? First of all, the fact that only authenticated users have access to it, pre-added to the VPN-service client list. In addition, all traffic inside is transmitted in encrypted form and is unavailable from the outside. BUT more vpn. Provides anonymity and helps to bypass the proxy settings, if any. Of course, everyone would like to protect the security, which means that this service is fairly in demand. The law of the market, which says that, thanks to growing demand, the number of proposals is increasing, still in force, so the choice of service providers is very wide. But we will look at the general on the example of the private. Setting up OpenVPN is a fairly popular tunneling solution - and it will be a model of working with technology as a whole.

Benefits

First of all, it should be noted that OpenVPN, in contrast to its paid analogues, is distributed freely. At the same time, the program has full functionality. An anonymous and safe tunnel can be created even from an office with a corporate firewall.

As the undoubted advantage of the OpenVPN client-server implementation, you can call the maximum simplified process of installing the application. For a successful installation, deep knowledge or special skills will not need. You do not even have to get used to the new operating system, because OpenVPN is available for Windows. The second decisive advantage of the program is to minimize costs. Do not buy a license or specialized equipment. Do not need a powerful server - ordinary personal computer Quite enough. If you have not yet decided on the choice of software for the VPN channel, it makes sense to try free stable and convenient software from James Jonana.

OpenVPN: Customer Setup

Usually, such a plan services are customary to deploy to * nix-systems: Gentoo, CentOS, Ubuntu, etc. However, in the case of OpenVPN (especially with the client part), we are not important, Ubuntu is installed on the computer where the OpenVPN configuration will be executed , Windows 7 Li: at least the initial steps will not be very different. For convenience, choose a fairly common, familiar and convenient OS from Windows. The program distribution can easily find in free access. Download on your computer last version Client OpenVPN, launch the installer and agree in turn with everything he recommends. In the component selection window, you must mark the desired checkbox. After the installation is completed, it makes sense to further implement the OpenVPN GUI user interface, which will greatly facilitate the process of configuring and further managing the client. To work correctly, OpenVPN should be started to achieve this, you just need to put a tick in the label properties. On this process of deploying a VPN client completed. It remains only to get from the admin file with keys and certificates, as well as a configuration file for your connection.

The next step is to configure the OpenVPN server. Windows supports not only the client, but also server part of the application.

OpenVPN.Server on Windows

The opener part of the OpenVPN is installed in the same way as the client: download distributions and alternately agree with the proposed. But here you yourself will act as an administrator. Accordingly, make changes to the configuration file, generate keys and certificates you will need to independently. But you do not need to be frightened: setting up the OpenVPN server on Windows - the task is not from impossible, it concerns even newbies. Operations are performed by command line. The exact text of the commands can be found in any OpenVPN installation guide. If everything is done correctly, the state of the new system created in the system after installing the VPN server, the virtual adapter will change with the "Cable is not connected" to "connected". In the properties of the adapter, you will see the configured address of the internal network.

OpenVPN outside computer

We reviewed the options for deploying the client and server part of OpenVPN to operating windows system. Given the program cross-platform, it can be installed on other versions of OS (Debian, Linux Mint, etc.). What else besides stationary computermay act as a client or vPN Server? They can serve as an activation of the server under consideration by us, you can connect the VPN client directly to the drive. Most routers also support OpenVPN. With rapid development information technologies All modern devices are available as functional as possible. This is not just a printer, but 3 in 1, combining the scanner, and the copying device. It's not only mobile phoneBut also a camera, player, GPS navigator, QR codes reader and much more. If the built-in functionality is not enough, the constantly updated contents of application stores will help expand the capabilities of pocket devices. Therefore, there is nothing unusual in choosing a new field of activity to install OpenVPN. Windows has already passed the stage, now it will be about Mikrotik router.

Deploy OpenVPN on Mikrotik

Despite the fact that bold experiments always welcome, the result sometimes does not justify hopes and aspirations. Happens so that combining different technologies, You can achieve the exact opposite expected. In the case of Mikrotik, serious disappointments, of course, will not, but some trigging functional still takes place. For example, UDP-transport is unavailable on the router. But, unlike the computer, on the microtic router, it is enough to import ready-made certificate files and keys, and then start the wizard, without command line. Settings are not distinguished by complexity: you need to register the address range for VPN clients, enable the OpenVPN server feature. Which does not take much time, no less inferior in the stability of the VPN server on the computer. The only thing to remember is the order of allowing permissive and prohibitive rules that are the same for all devices that perform the function of the firewall.

A little about the VPN servers instead of imprisonment

There is a statement that no technology will win wide recognition while the usual user or system Administrator It will not be able to install it easy. It is desirable that it was within a single wizard, where you just need to press the "Next" button. In reality, each product will have their own fans, no matter what actions will have to take before direct use. Setting up OpenVPN under Windows requires command line, but it does not differ in particular complexity. While the built-in operating system tools or some individual solutions are really installed and configured in a few clicks with the mouse. But for 12 years, OpenVPN did not disappear, but continued to evolve, and still remains a popular product, high-quality and noncain.

The Internet is similar to the sea. With sent data, as with a ship while traveling, anything can happen: they may be damaged, sink in the flow of information or become the production of "pirates". Protecting especially valuable data from theft and loss helps (VPN, VPN) - systems of closed channels (tunnels), which are built inside another, more large network. One of the types of VPN is OpenVPN.

Want to learn how to create virtual private networks quickly and easily? Let's talk about the benefits of the OpenVPN protocol, as well as on the settings of the server and the client part belonging to it under Windows and Ubuntu.

Scope and benefits OpenVPN

Application area

Creating protected corporate networks. The distance between the nodes of such networks does not matter.
Protection of information in open public networks.
Connecting to the Internet of several hosts through a shared gateway.
Access to prohibited web resources.

Benefits

Everything is free. Most of us will not refuse free Wi-Fi in a cafe or park, but traffic transmitted by such a connection is not protected from interception. Free on OpenVPN will send it to a closed tunnel, so your logins, passwords and the other secret information I will not learn exactly in other people's hands.
To make your own network protected, you do not need to buy additional equipment.
All transmitted traffic is compressed, which provides a high speed of communication (higher than when using IPSec).
Flexible settings for allowing to configure VPN Anyone difficulties.
The use of several reliable encryption algorithms provides a very high degree of data protection.
It is not required to reconfigure or disable firewalls (network screens) and NAT (IP address conversion technologies in TCP / IP networks).
The protocol supports all major operating systems.
To install and configure the software, there are no deep knowledge of network technologies, and even a non-specialist it takes a few minutes.

Setting up OpenVPN under Windows

Installing and configuring server part

Since most of us uses Windows OS, get acquainted with the OpenVPN technology will start with it. So, a suitable distribution and launch the installation.

In the list " SELECT COMPONENTS TO INSTALL"(Select Components for installation) Mark everything.

Agree to install the TAP Windows Adapter V9 virtual network adapter driver.

Installed? Now we will create key and VPN certificates.

We go into the% ProgramFiles% / OpenVPN / Easy-RSA catalog and launch a batch file. init-config.bat. - He copies the file to the same folder. vars.bat.sample. as vars.bat.. Further package vars.bat. will specify variables for generating certificates.

After creating vars.bat. We open it using a notepad and prescribe in the selected lines (after "\u003d") any data. We save changes.

Next, run from the administrator command line and perform the transition instruction to / Easy-RSA ( cD%PROGRAMFILES% /OpenVPN /easy-rSA.). After that we repeat vars.bat. and clean-all.bat.(load variables and delete previously created keys).

Perform a package of commands build-cA.bat. - By this we will create a new main certificate in the% ProgramFiles% / OpenVPN / Easy-RSA / KEYS catalog. Fill out the data on the name of the organization and so on, which is encountered on the screenshot of the frame, it is not necessary to simply press ENTER.

Run build-dH.bat. - By this, we create the key of Diffi Helman. File will appear in the / Keys folder dH1024.PEM..

On the queue - server key: Perform instructions build-key-servermyVPN.("MyVPN" is the name of the server, you can specify any other). The block of questions starting with the "Country Name", we skip by pressing ENTER. On the last two questions - "SIGN THE CERTIFICATE?" And the next, answer "y".

Further we need to get the client's key: do build-keyuser1 (User1 - customer name, can be replaced with another). If client computers are somewhat, repeat the operation for everyone, without forgetting to change the name. The block circled, as before, skip.

Next, copy from the folder / easy-rSA /keys.in / OpenVPN /config The following files: dH1024.PEM., ca.crt myvpn.crt., myvpn.Key., user1.keyuser1.cRT. The last four may be called in your other way. Why, I think, understandable.

Following in the same folder, create a server configuration file. Copy the directives below in Notepad and, if necessary, change their parameters to yours. We maintain a document with expansion. oVPN. and name " Server».

# Interface (L3 tunnel)
Dev Tun.
# VPN operation protocol
Proto UDP.
# Used port (you can specify any free)
Port 1234.
# List of certificates and keys (pay attention to the names)
CA CA.CRT.
CERT MYVPN.CRT.
Key Myvpn.Key.
DH DH1024.PEM.
# Data encryption type
Cipher AES-256-CBC
# Select the range of IP addresses
Server 10.10.10.0 255.255.255.0.
# Level of debug information
Verb 3.
# Use compression
COMP-LZO.
Persist-Key.
Persist-Tun.
MSSFIX.
# Set the maximum number of repetitive events
Mute 25.
# Number of simultaneously connected clients (5)
Max-Clients 5
# Life time client session
Keepalive 10 120.
# Visibility to each other's customers (allowed)
Client-to-Client
# Select each user 1 address
TOPOLOGY SUNNET.
# Install the delay before adding the route
Route-Delay
# Indicate if we want to distribute the Internet. DNS addresses We write those that are spelled out in Internet connection settings.
PUSH "REDIRECT-GATEWAY DEF1"

Push "DHCP-Option DNS X.X.X.X.X"

Additionally, read about server config directives.

Next, to distribute the Internet we go into the network connections directory, open the properties of the interface looking into the global network, go to the " Access", Put a label in front of" Allow other users to use this connection ..."And select the TAP-Windows Adapter V9 virtual adapter network from the list - in my accept this Ethernet 3.

Create a client configuration file. Copy the following text in Notepad and save a document with extension.ovpn under the name "Client".

client.
Dev Tun.
Proto UDP.
# Ip or. domain name VPN server and connection port.
Remote X.X.X.X. 1234.
CA CA.CRT.
CERT UPER1.CRT.
Key User1.Key
Cipher AES-256-CBC
COMP-LZO.
Persist-Key.
Persist-Tun.
Verb 3.

Other customer config directives see.

Setting up a client part

Install the application on the client computer. Next, go to the server, open the% programfiles% / openvpn / config directory and copy files from there ca.crt, client.ovpn, user1.crt,user1.key in network folder or flash drive. We carry them into a similar folder of the client machine.

Connection

To start the server, click on the "OpenVPN GUI" label on the desktop. A gray-colored icon will appear in the tray. Right-click on it, select the command " Server"And" Connect».

With a good connection, the icon will change the color to green. With the unsuccessful - click on the menu " View Journal": It will indicate an error.

Customer connection is performed in the same way, only instead of " Server»Select in the menu" Client.».

Setting up OpenVPN under Ubuntu

We start with the fact that, like on Windows, install the OpenVPN package to server and client machines. Directive installation of the console version of the software through the terminal as follows: sudo APT-Get Install OpenVPN. If you wish, you can set graphic versions of packages from the Ubuntu Application Center.

However, the most important component is an Easy-RSA module designed to generate certificates and keys in Linux-distribution not included. It will have to be installed separately by executing the command: sudo.aPT-get.installeasy-rSA.

Configuring server part

After installing the program and the additional module, create a catalog " easy-RSA.»In the / etc / openvpn folder: sudo. mKDIR / ETC / OpenVPN / Easy-RSA.Copy it content from installation site: cP -R / USR / SHARE / EASY-RSA / ETC / OpenVPN / Easy-RSA.
Next, go to the new catalog: cD / ETC / OpenVPN / Easy-RSA / And proceed to creating certificates and keys.

We open using the VARS variables using the Nano Console Editor, and import the same data into it as in Vars.Bat, with changed values:

Key_country \u003d ru.
Key_province \u003d CA.
Key_city \u003d Sanfrancisco.
Key_org \u003d OpenVPN.
[Email Protected]
Key_cn \u003d Changeme.
Key_Name \u003d ChangeMe.
Key_ou \u003d Changeme.
Pkcs11_module_path \u003d changee
Pkcs11_pin \u003d 1234.

Copy the cryptographic pack of OpenSSL: cP.openSSL-1.0.0.cNF.openSSL.cNF..
Upload variables from Vars: source ./vars..
We delete previously created data: ./ clean-all..
Create a new main certificate: ./ build-cA.. I miss questions block in the frame.

Following - Diffi Helman's key: ./ build-dH.
Behind him - Server Certificate :. / build-key-servermyVPN.(MyVPN, as you remember, is a name, you can have something else). Dedicated block I skip (in the screenshot it is reduced), 2 recent questions are responsible for "y".

Latest Create a Customer Certificate: ./ build-keyuser1(Instead of "User1" you can come up with another name). At the same time, again we skip the block allocated on the screen and on the last two questions answer "Y".

All created keys and certificates are saved in subdirectory / etc /openVPN /easy-rSA /keys.. Move them to folder / OpenVPN: CP -R / ETC / OpenVPN / EASY-RSA / KEYS / ETC / OpenVPN.

At the final stage, create a server configuration file in the / etc / OpenVPN folder: nano /etc /openVPN /server.conf. And fill it in the same way as the similar document on Windows has filled out. The only difference is other ways:

cA /etc/openvpn/keys/ca.crt.

cert /etc/openvpn/keys/myvpn.crt.
Key /etc/openvpn/keys/myvpn.key.

Finally, create a directory to configure client machines: mKDIR / ETC / OpenVPN / CCD, And run the server: Service OpenVPN Start.

If the server does not start, it is likely that an error is made in the configuration. Information about the problem can be viewed in document /var/log/openvpn.log using the command tail -f /var/log/openvpn.log..

Setting up a client part

After installing the application, you transfer the key and certificates generated on the server on the server and create a config.

Key and certificates - cA.CRT., user1.crt. and user1.Key.Are in the / etc / openvpn / keys folder. Copy them to the USB flash drive and insert the folder into the same time on the client's computer.

Configuration file Create with Nano: nano /etc/openvpn/client.conf,and fill in the sample Windows. Do not forget to register the right paths in it:

cA /etc/openvpn/keys/ca.crt.
DH /etc/openvpn/keys/dh2048.pem.
cert /etc/openvpn/keys/user1.crt.
Key /etc/openvpn/keys/user1.key.

All is ready. To connect to the server, use the same command: service OpenVPN Start.

The instruction turned out long, but actually performing these actions takes 5-10 minutes. More information about working with OpenVPN is located in the "" section of the official application site. Try, and everything will succeed!

More online:

Setting up OpenVPN on Windows and Ubuntu: What, why and how Updated: April 24, 2016 by the author: Johnny Mnemonic

In essence, Open VPN is quite interesting programworking under the Virtual Private Network species point-to-point, and you are not required to change Firewall-settings for its use. This program comes to help when you need to connect to a private virtual network, for example, join home network or office VPN.

This program often acts as a universal client, which makes it possible to disguise its stay on the Internet without any problems, in two accounts by installing communication with a third-party server "past" your provider. This is exactly what Open VPN is popular in an anonymous VPN services.

What can be attributed to the basic advantages of such a model?

Save traffic: everything is well compressed by LZO.
Ease of setting: everything is about everything goes less than an hour, and even a newcomer or person without special knowledge will be able to understand.
Impressive safety: the entire traffic is encrypted without exception, with each client is separate.
The client does not need to install additional equipment.
Finally, the stability of work and a fairly decent speed.

What is noteworthy, the program comes completely free, i.e. her source Opened for everyone. Want to know more? Come here and you will find exhaustive information.

What is a connection through an open VPN?

In order to guarantee the connection and this full security, the OpenSSL library is applied. This opens up the program maximum access to encrypted algorithms available in the assembly. Additionally, HMAC can apply - this ensures enhanced data encryption at the moment when the information is processed or transmitted.

What operating systems can the OpenVPN client be used? In all the main OS, which belongs to Windows, Mac OS, FreeBSD.

Through which OpenVPN ports makes all network operations and movements? UDP or TCP, moreover, work is possible through HTTP, NAT, etc.

So, if you are going to purchase access to VPN Server, I think the technology of Open VPN will definitely interest you. Dozens of research and attempts to scrupulously compare OpenVPN and PPTP lined up a clear picture: improved data encryption algorithms make a customer more efficient in safety issues. Ease of maintenance makes additional points in its favor. Good luck to you!

Hello everyone if you have noticed Tap-Windows Adapter V9 or TAP-Win32 Adapter V9 and now think what it is, I will try to answer this question with a clear language. Tap-Windows Adapter V9 is a network adapter, but not simple and virtual. That is, it serves to create a virtual network, some tunnels there ... And if you have it, you have some specific software installed. Usually this adapter puts OpenVPN.

What is the OpenVPN program? Well, it is to create a virtual private network. I will not ship you, I will say that the OpenVPN program is set, then you need to install configuration files and connect to the network.

Usually these network users create in order to get around some blocking or simply use the Internet of another country. Well, for example. There is a website that provides VPN services. You paid a service there, downloaded configuration files, installed them and now on the Internet all sites and all programs think that you are in the country under which VPN works. Simple words OpenVPN is often used to change the IP address, it was necessary to write to me so immediately

If the fact that I wrote to you is not particularly saying, then OpenVPN could put some other program. I had a case when the antivirus did it, I just don't remember exactly what but it seemed to be avast ..

Guys, I learned some more interesting info about the TAP-Windows adapter, read about it, I really advise you to read!

Here is this network adapter in the folder Network connections:

For what reasons it can be installed:

it is possible that someone put the OpenVPN program to create a network and use it its goals, it is relevant if the computer uses not one person;
install TAP-Windows Adapter V9 could have some program, it is quite possible that it is from network equipment: an advanced router, a modem or other;
viruses and Trojans cannot establish this in principle;
also found info that this network adapter may install an KMSPICO activator or similar to it;

How to delete TAP-Windows Adapter V9?

Here to delete it as if I do not advise .. and simply because it is possible to determine if you can delete it or not always it turns out. In short, it is better to turn off it first, and then if there are no glitches for example a couple of days, then delete. But this I think so, and you can immediately remove it ...

See if you have a start menu or somewhere such icons:

If there is, then you have the OpenVPN program installed, which can be deleted if you do not need it.

At first I will show how to disable TAP-Windows Adapter V9. Open the network connection folder (if that, it is in the control panel) and press there by right-click on this adapter and select Disable:

After that, it will become black and white:

In such a disconnected state, it does not load the computer at all, does not interfere with the work and does not affect anything. If you suddenly disappeared with your Internet after shutdown, turn on the adapter back!

Now I will show how to manually remove it with roots. But attention - make sure that you really don't need it !!! I already wrote that you can first turn it off and if everything is normal, then it is possible to delete it.

Press the start, choose the control panel there, and we find the administration icon in it:

Then we run the computer management:

We select the device manager on the left and then select the TAP-Windows Adapter V9 adapter, click on it right-click and select Delete in the menu:

Then there will be such a confirmation, here put a tick to remove and click OK:

After that, you yourself can make sure that the adapter is no longer on the list, there are only those that yours well, that is, you have in a computer:

This is how simply you can delete TAP-Windows Adapter V9 from Windows, I hope that everything is clear

How to delete OpenVPN?

I showed how to delete manually unnecessary this adapter. But he also should disappear in theory and if you deleted OpenVPN, and here's how to do it. Open the start and choose a control panel there (and if you have a dozen, then you pushed Win + X and there will be this item):

Then we find the program icon and components:

A window will open, here you need to delete everything regarding OpenVPN, and this is also TAP Windows:

I first delete the TAP-Windows. Press the right button on this and select delete. This window appears, here you click Uninstall:

Then we click Next and there will be such a window that everything passed normul and everything is removed:

And then you also delete OpenVPN, well, that prog that remains and also click Uninstall:

Then click Next and everything will be removed without jokes, well, that is, without problems

That's all. I hope that you gave you normal information and now you know how to get rid of TAP-Windows Adapter V9. But I will say again and finally, you can disable, but I advise you to delete, then I advise you to test this adapter to some kind of prog well or another user. In general, good luck to you

01.10.2018