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What is a VPN


A virtual private network (VPN) is a technology that allows you to create a secure connection over a less-secure network between your computer and the internet. It protects your privacy by allowing you to anonymously appear to be anywhere you choose.

VPN is beneficial because it guarantees an appropriate level of security and privacy to the connected systems. This is extremely useful when the existing network infrastructure alone cannot support it.

For example, when your computer is connected to a VPN, the computer acts as if it’s also on the same network as the VPN. All of your online traffic is transferred over a secure connection to the VPN. The computer will then behave as if it’s on that network, allowing you to securely gain access to local network resources. Regardless of your location, you’ll be given permission to use the internet as if you were present at the VPN’s location. This can be extremely beneficial for individuals using a public Wi-Fi.

Therefore, when you browse the internet while on a VPN, your computer will contact the website through an encrypted VPN connection. The VPN will then forward the request for you and forward the response from the website back through a secure connection.

VPNs are really easy to use, and they’re considered to be highly effective tools. They can be used to do a wide range of things. The most popular types of VPNs are remote-access VPNs and site-to-site VPNs.

What is a remote-access VPN?

A remote-access VPN uses public infrastructure like the internet to provide remote users secure access to their network. This is particularly important for organizations and their corporate networks. It’s crucial when employees connect to a public hotspot and use the internet for sending work-related emails. A VPN client, on the user’s computer or mobile device connects to a VPN gateway on the company’s network. This gateway will typically require the device to authenticate its identity. It will then create a network link back to the device that allows it to reach internal network resources such as file servers, printers and intranets, as if it were on the same local network.

It usually relies on either Internet Protocol Security (IPsec) or Secure Sockets Layer (SSL) to secure the connection. However, SSL VPNs can also be used to supply secure access to a single application, rather than an entire internal network. Some VPNs also provide Layer 2 access to the target network; these will require a tunneling protocol like PPTP (Point-to-Point Tunneling Protocol) or L2TP (Layer 2 Tunneling Protocol) running across the base IPsec connection.

What is a site-to-site VPN?

This is when the VPN uses a gateway device to connect to the entire network in one location to a network in another location. The majority of site-to-site VPNs that connect over the internet use IPsec. Rather than using the public internet, it is also normal to use career multiprotocol label switching (MPLS) clouds as the main transport for site-to-site VPNs.

VPNs are often defined between specific computers, and in most cases, they are servers in separate data centers. However, new hybrid-access situations have now transformed the VPN gateway in the cloud, typically with a secure link from the cloud service provider into the internal network.

What is a mobile VPN?

A traditional VPN can affect the user experience when applied to wireless devices. It’s best to use a mobile VPN to avoid slower speeds and data loss. A mobile VPN offers you a high level of security for the challenges of wireless communication. It can provide mobile devices with secure access to network resources and software applications on their wireless networks. It’s good to use when you’re facing coverage gaps, inter-network roaming, bandwidth issues, or limited battery life, memory or processing power.

Mobile VPNs are designed and optimized to ensure a seamless user experience when devices are switching networks or moving out of coverage. It generally has a smaller memory footprint, and because of that, it also requires less processing power than a traditional VPN. Therefore, it enables your applications to run faster while the battery pack is able to last longer.

A Mobile VPN is a worthwhile tool to have since it increases privacy, user satisfaction and productivity, while also reducing unforeseen support issues caused by wireless connectivity problems. The increasing usage of mobile devices and wireless connectivity make it more important to ensure that your data is being transferred through a secure network. It will allow you to access the internet, while staying safe behind a firewall that protects your privileged information.

Who needs a VPN?

Individuals that access the internet from a computer, tablet or smartphone will benefit from using a VPN. A VPN service will always boost your security by encrypting and anonymizing all of your online activity. Therefore, both private and business users can benefit from using a VPN. Communications that happen between the VPN server and your device are encrypted, so a hacker or website spying on you wouldn’t know which web pages you access. They also won’t be able to see private information like passwords, usernames and bank or shopping details and so on. Anyone that wants to protect their privacy and security online should use a VPN.


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