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VPN (Virtual Private Network) is a technology that eliminates the security problems that may occur when connecting to a network over the internet. Data sent over the Internet is encrypted and a “virtual” network is created between the sender and the receiver. In this way, users can browse the internet anonymously, encrypting internet traffic and protect their online activities.

 Importance of VPN for Businesses and Remote workers

Today, with the rapid development of technology, the way of working remotely has also become very popular. While many employers allow their employees to work from home, many jobs can be done from home. However, remote workers have some concerns about internet security. At this point, the use of VPN (Virtual Private Network) becomes very important.

VPN allows them to securely connect to corporate networks. In this way, those who work from home or in a cafe can meet their business needs such as file sharing, video conferencing or e-mail by connecting to the same network while doing their work in a different way than in the office. Moreover by encrypting internet traffic It secures the internet connections of home workers and thus prevents sensitive data from being intercepted or changed by unauthorized persons.

For example,

VPN prevents this attack by encrypting internet traffic against MITM (man in the middle) attacks for data monitoring, modification and data stealing by hijacking the communication between two devices in a network.

Especially if you want to sit and work in a cafe and to a public WiFi network if you are connecting. VPN plays a very important role for your security. If you are not using a VPN, a hacker can monitor your internet traffic. Which sites you visit, your login information on the sites, your card information and many sensitive data can be accessed. This data may also be sensitive data about the company you work for. A hacker can get your company or you big financial losses by getting this kind of data.

What are the advantages of using a VPN?

Security: VPN, by encrypting internet traffic prevents users' private information from being captured by third parties. between the VPN and the servers you communicate with. encryption of trafficallows you to browse the internet securely, protecting your sensitive data.

Security: VPN helps internet users keep their activities private. Internet service provider, government, or other third parties have a hard time monitoring where VPN users are browsing or what they are doing. In this way, internet users can hide their private lives.

Bypass local restrictions: Some countries or websites may block access from a certain geographic area by applying regional restrictions. By using VPN, users can bypass regional restrictions and surf the internet freely.

Secure file sharing: A VPN provides a secure environment for file sharing. File sharing helps protect files from unauthorized access when encrypted over VPN.

Remote access: VPN provides remote access. Users who want to connect remotely to access the work or school network can securely connect to the network using a VPN. This is especially important for those who work from home.

Increasing internet speed: Some VPNs can optimize to increase internet speed. In this way, users can have a faster internet experience.

Types of VPNs?

PPTP VPN: PPTP (Point-to-Point Tunneling Protocol) is a VPN protocol used to establish private network connectivity over the internet. This protocol provides encrypted transmission of data using a tunnel created between a server and a client. PPTP is widely used because it is easy to use, fast and compatible with a wide range of devices. However, PPTP has some vulnerabilities and therefore more secure alternatives may be preferred.

Site-to-Site VPN: Site-to-Site VPN is a type of VPN used to establish a secure connection between two or more networks. A tunnel is created between two different local networks.

Data is transmitted securely over the tunnel. Site-to-Site VPNs allow companies to connect between different offices or remote workers. It also allows different organizations to collaborate by creating a private connection. Site-to-Site VPN is divided into 2 in itself.

Intranet-based VPN is when several offices or remote employees of the same company connect with Site-to-Site VPN.

Extranet-based VPN is called 'Site-to-Site VPN', which different companies use to connect their offices.

L2TP VPN: Layer Two Tunneling Protocol (L2TP) is an extension of Point-to-Point Tunneling Protocol (PPTP) and is used by internet service providers (ISPs) to enable virtual private networks (VPNs). using for. L2TP, tunnel through encrypt traffic requires an encryption protocol. However, using pure L2TP is not secure and is recommended for use with IPSec.

IPSec VPN: IPSec VPN is a type of VPN used for the security of data sent over the internet. The IPSec protocol is used to establish encrypted connections between devices and to secure data. IPSec VPN is typically used for remote access or site-to-site VPN connections and is used to decrypt IP packets. by encrypting and it works by validating.

SSL VPN: secure and over an insecure network such as the Internet. encrypted It is a virtual private network created using the SSL protocol to provide a connection. SSL VPNs are commonly used in situations that require remote access, such as remote workers or users in different locations. SSL VPN provides users with access to remote network resources via a web-based interface and is easier to set up and configure compared to more traditional VPNs.

MPLS VPN: MPLS VPN is a virtual private network service that enables organizations with multiple locations to securely and seamlessly exchange data between different locations over the MPLS backbone. This service is a VPN infrastructure using multi-protocol tag switching techniques and includes a suite of different MPLS-based VPN technologies. It also allows customers to access separate networks and use private IP addresses.

How does VPN work?

  1. The user's device makes a request to connect to the VPN provider (VPN server).
  2. The VPN server authenticates the user and will be used to establish a secure connection. encryption sets keys.
  3. User's internet traffic using VPN connection encrypted somehow redirected to the VPN server.
  4. VPN server, user Encrypted traffic somehow directs it to the internet.
  5. When internet traffic reaches its destination, the target server or device accepts the traffic as it comes from the VPN server and sees the VPN server's IP address instead of the user's real IP address.
  6. Internet traffic, following the same path encrypted somehow returns to the user's device and is resolved on the device.

Thus, by using VPN, users internet trafficis encrypted and the IP address of the VPN server becomes visible instead of the real IP addresses. This allows users to connect to the internet in a more secure and private way.

Is VPN sufficient for internet security?

VPN is an important tool for internet security, but it is not enough on its own. VPN, internet traffic by encryptingcan increase your internet security by protecting against phishing attempts and hiding your IP address when you connect to the internet from a location not in your local network, but it is important for users to take other security measures when connecting to the internet. For example, it is important to use a strong password when connecting to the Internet, use antivirus software, visit trusted websites, use firewalls, and be wary of phishing e-mails.

What should we pay attention to when using a VPN? Which VPN apps should we use

Security: A VPN secures your internet connection. by encrypting secures your data. However, not every VPN offers the same level of security. In terms of security, VPNs that use strong protocols and do not log user data should be preferred.

Privacy Policies: A VPN provider should clearly state whether it records users' data, if so for how long, and with whom it shares the data. For your security, you should read their privacy policy before choosing a good VPN provider.

Server Location: Geolocation of VPN servers can affect user experience. Connecting to a nearby server may provide a faster connection. Also, if a VPN provider has widely deployed its servers around the world, it may become easier to access blocked content in different geographies.

Performance: VPN connection can often slow down your internet connection. Therefore, you should consider factors such as server load, protocol, encryption level, connection speed, and number of ports among the factors that can affect your VPN performance.

Note that you cannot be completely anonymous when using a VPN. Note that in some cases, you may be tracked by governments or VPN providers.

As for which VPN app to use, it all comes down to personal preference. Popular VPN providers include many options such as ExpressVPN, NordVPN, CyberGhost, Private Internet Access (PIA), and Surfshark. However, when choosing a VPN provider, it's important to pay attention to the security, privacy, and performance factors mentioned above first.

Here are the starting prices of several VPN apps.

Private Internet Access: monthly fee 50 TL. It has the ability to connect to 10 devices.

CyberGhost VPN: monthly fee 50 TL. It has the ability to connect to 7 devices.

PrivateVPN: monthly fee 250 TL. It has the ability to connect to 10 devices.

NordVPN: monthly fee 100 TL. It has the ability to connect to 6 devices.

Surfshark: monthly fee 50 TL. It has the ability to connect to unlimited devices.

CactusVPN: monthly fee 80 TL. It has the ability to connect to unlimited devices.

ZenMate: Monthly fee 40 TL. It has the ability to connect to unlimited devices.

ExpressVPN: monthly fee 190 TL. It has the ability to connect to 5 devices.

Risks that can occur when using a VPN

Unsafe VPN providers: Some VPN providers may log user data or track users. Therefore, choosing a reliable VPN provider is crucial.

VPN disconnection: When the VPN connection is disconnected, your internet traffic can be sent unencrypted. Therefore, it is important to choose a provider that provides an uninterrupted VPN service.

Low speeds: VPN connection can slow down your internet connection speed. Some VPN providers provide faster connections, so choosing a fast VPN provider is important.

Malware: Some malware can infiltrate your computer using a VPN connection. If the purpose of using VPN is to surf the Internet safely, using antivirus programs may be more useful in terms of security in addition to using VPN.

Lack of transparency: Some VPN providers may not be transparent about their privacy policies and may log user data. Therefore, choosing a reliable and transparent VPN provider is crucial.

Differences between paid vpn and free vpn

Security: Generally, paid VPNs are more secure because they are more advanced. encryptionprotocolsThey offer IP address leak protection and other security features. Free VPNs often have fewer or no such features.

Speed: Paid VPNs are generally faster and provide higher bandwidth. Free VPNs can be slower due to limited bandwidth.

Data quota: Free VPNs often have a data quota limit, and once this limit is exceeded, the service may drop or operate at slower speeds. Paid VPNs usually don't have this limitation.

Number of servers and location: Paid VPNs usually offer more servers and servers in more geographic locations. This provides better speeds and better accessibility. Free VPNs may have fewer servers and locations.

Support: Paid VPNs usually offer 24/7 customer support. This type of support is less common with free VPNs.


  • How to Install VPN on Computer?
    1. First, you need to choose a reliable VPN service provider. Make sure the service you choose has strict encryption and privacy policies to protect your personal information.
    2. Download and install the VPN client software. It may be available on your VPN service provider's website or app stores.
    3. Open the VPN client and select the server you want. This server will change the IP address of your internet connection.
    4. If necessary, you can customize the VPN settings. Some service providers allow configuration of settings via client software.
    5. Start the VPN connection and make sure your internet traffic is encrypted and your privacy is protected.
    6. In addition to the advantages of using a VPN, there are also some disadvantages. Examples of these are when your internet connection slows down, some websites block VPN connections, or using free VPN services poses a security risk.
  • What do VPN settings do?
    Protocol settings: The VPN protocol determines features such as the encryption and security level used.Server selection: A VPN server is a virtual network used to access the Internet. Deciding which server to use is important for speed and security.IP settings: The IP address to be used in the VPN connection can be selected. This is important for security because different IP addresses can have different security levels.DNS settings: DNS settings determine the DNS server used when accessing the internet. This is important for speed and security. These settings are made to provide VPN users with higher security and privacy, and to provide faster and more secure access to the internet.
  • What precautions should you take when accessing the Internet on public networks?
    Use VPN: When connecting to the internet on public networks, you can protect your connection using a VPN (Virtual Private Network). A VPN can protect your internet traffic from phishing attacks and data theft by encrypting it. Use up-to-date antivirus software: Antivirus software helps detect and block malware on your device. Use an up-to-date browser: An up-to-date browser can improve the security of your device by closing security vulnerabilities. Use secure websites: It is recommended that you use secure websites that use the HTTPS protocol when banking or shopping online. Turn off automatic Wi-Fi connections: You can prevent your device from automatically connecting to Wi-Fi networks, preventing you from connecting to unwanted networks.

    Turn off file sharing and cloud storage applications: It is recommended to turn off file sharing and cloud storage applications on public networks. Such apps gain access to files on your device and can increase the risk of malware infection.

    Do not share sensitive information on public networks: Avoid sharing your identity, credit card information or other sensitive information on public networks

  • Is it safe to use every free VPN app?
    No, not every free VPN app is secure. Free VPNs often lack the features and level of security that paid ones offer. Some free VPNs can cause privacy issues such as collecting users' data and selling it for advertising or other purposes. Also, some free VPNs may contain malware or malicious advertisements. Therefore, for a secure VPN service, it is important to choose a reputable VPN provider and read their privacy policy carefully.
  • How to set VPN on Microsoft computers?
    1.  If you do not have the VPN client installed on your computer, you may need to download and install a VPN client first. For example, you can download OpenVPN, a free VPN client for the Microsoft Windows operating system.
    2.  After installing the VPN client, click "Settings" or "Settings" in the Start menu and then select "Network & Internet" or "Network & Internet".
    3.  Select "VPN" and click "Go to VPN" or "Go to VPN".
    4.  Select "Add to VPN" or "Add a VPN connection".
    5.  Enter the following information in the required fields for VPN connection:
    VPN provider name: Name of your VPN service providerServer name or address: The server address of your VPN service providerVPN type: Choose your VPN type. For example, PPTP, L2TP/IPsec, SSTP, IKEv2 or OpenVPNUser name: Username provided by your VPN service providerPassword: Password provided by your VPN service provider
    1.  Click "Save" or "Save".
    2.  Now, click "Go to VPN" or "Go to VPN" and select the VPN connection you created.
    3.  Click "Connect" or "Connect" and you can start using your VPN connection.
    These steps apply to the Microsoft Windows 10 operating system, but the details may vary if you are using a different version.
  • Can a hacker become completely invisible using a VPN?
    No, a hacker would not be completely invisible using a VPN. VPN makes it difficult to monitor the user's internet activities by encrypting the internet traffic and hiding the IP address of the user. However, the VPN service can be monitored by the VPN server the user is connecting to. Also, being completely invisible to a hacker requires a combination of many different factors. These factors include the device used, the operating system, the software used, the way to connect to the internet and many other factors.
  • How to set VPN on a computer with macOS operating system?
    1.  Click "System Preferences" from the Apple menu.
    2.  Click "Network" in the window that opens.
    3.  Click the "+" button at the bottom of the "Network" window.
    4.  In the window that opens, select the "VPN" option from the "Interface" section.
    5.  Select the VPN protocol you will use from the "VPN Type" section. (For example: IKEv2, L2TP, PPTP)
    6.  Enter a name in the "Service Name" field and click the "Create" button.
    7.  In the "Configuration" section, enter the information you received from your VPN provider. Typically, this information is on the "Setup" or "How to Connect" page on your VPN provider's website.
    8.  Enter your username and password in the "Authentication Settings" section.
    9.  In the "Advanced" section, you can specify the details of your VPN connection. For example, you can change your DNS settings or proxy settings.
    10.  After entering all the information, click the "OK" button.
    11. You can now access the internet using your VPN connection. You can start your connection by selecting your VPN connection in the "Network" window and clicking the "Connect" button.
  • Setting up VPN on phones or tablets with IOS operating system
    First, download the VPN client from the App Store on your iPhone, iPad or Macbook. Setting up a VPN on a phone or tablet with an iOS operating system is quite easy. You can configure VPN settings by following these steps:
    1. Open the Settings app and tap Wi-Fi.
    2. Tap the network you want to connect to in the network list.
    3. Tap VPN under advanced options.
    4. Select the VPN type from the drop-down menu. Your VPN provider will tell you which VPN protocols they support.
    5. Provide the necessary information to set up your VPN settings. This may include information such as the VPN server's name or IP address, username, and password.
    6. Tap OK and save the settings to go back to the VPN settings.
    7. Your VPN connection is now configured and you can activate your VPN connection by returning to the VPN main menu.

    Setting up vpn on phones or tablets with Android operating system

    First, download the VPN client. Download a VPN client of your choice from Google Play on phones with Android operating systems such as Samsung, Huawei, Xiaomi. Then follow the steps below.
    1. Open your device's Settings app.
    2. Tap on Network & Internet.
    3. Tap on the VPN option.
    4. Tap "Add VPN" option.
    5. Enter the information your VPN provider provided to you.
    6. Tap OK to save.
    You can adjust your VPN settings by following these steps. There may also be options in the VPN settings, such as choosing a server, choosing a protocol, and configuring other detailed settings. These settings may vary depending on the service your VPN provider offers and can be especially useful for advanced users.
  • How can you gain access when access to social networks is restricted?
    using a VPN: VPN (Virtual Private Network) provides users with secure and free internet access by encrypting internet traffic. When access to social networks is blocked in some countries, you can bypass this barrier by using a VPN.Using a proxy: Proxy servers are intermediate servers that anonymize internet access. When access to social networks is blocked in some countries, you can bypass this barrier by using proxy servers.Using Tor: Tor is free and open source software that internet users can use to protect their privacy. By routing internet traffic through a different set of servers, it helps to hide the real IP address of the user and make their internet activities anonymous. Tor can also be used to access censored websites. However, the use of Tor does not provide complete anonymity and it is important for users to exercise caution and develop safe internet habits. By using Tor, you can bypass social networking restrictions.
  • Setting up vpn on phones or tablets with Android operating system
    First, download the VPN client. Download a VPN client of your choice from Google Play on phones with Android operating systems such as Samsung, Huawei, Xiaomi. Then follow the steps below.
    1. Open your device's Settings app.
    2. Tap on Network & Internet.
    3. Tap on the VPN option.
    4. Tap "Add VPN" option.
    5. Enter the information your VPN provider provided to you.
    6. Tap OK to save.
    You can adjust your VPN settings by following these steps. There may also be options in the VPN settings, such as choosing a server, choosing a protocol, and configuring other detailed settings. These settings may vary depending on the service your VPN provider offers and can be especially useful for advanced users.
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