Virtual private network

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A virtual private network or VPN for short, is a way of connecting a computer to a remote network. Most people using computers connect to the World Wide Web using a normal network, such as dial-up or broadband. A VPN is a little bit different. It's commonly used by workers to connect to their work network using a laptop to check their work email and see work websites that cannot be seen on the normal internet.[1]

VPNs use strong encryption to prevent unauthorized users from reading the data being sent over the VPN.[source?]

Similarly, the encryption process allows VPN to offers anonymity by hiding the user and making it very hard for anyone to track them. As a result, VPN helps make one's online activities on the web anonymous and undecipherable.[2]

VPN is often used to access websites that are blocked in some countries, like China.[3] Many people also use a VPN to protect their internet activity while using public WiFi. While VPN usage varies by country, you can see a full list of reasons why, where, and how often people use a VPN at GlobalWebIndex.[4]

VPN can also be used to connect corporate offices to the larger branch offices, also known as site-to-site VPN. This is because direct network connections are impractical between offices that are physically distant.[5]

Common VPN protocols include OpenVPN, Cisco AnyConnect, and IPsec.

Common uses[change | change source]

  • Remote workers connecting to a company network (telecommuting)
  • Connecting multiple company offices together over the Internet (site-to-site VPN)
  • Connecting to one's own home network from a remote location
  • Bypassing censorship or firewalls
  • Downloading files or browsing the Web anonymously
  • Securing communications on public WiFi

Related pages[change | change source]

References[change | change source]

  1. "Best VPN Services". Vbtcafe. 2018-04-11. Retrieved 2018-05-06.
  2. https://www.ivacy.com/how-vpn-works
  3. http://www.businessinsider.com/china-blocks-vpns-2015-1
  4. http://blog.globalwebindex.net/chart-of-the-day/4-things-to-know-about-vpn-users/
  5. Polanski, Moti (26 January 2018). "What Is VPN". Safer VPN. Retrieved 29 September 2018.