The Basics of Virtual Private Networks


networking

If there’s one important advancement made on the Internet, it’s the virtual private network or simply called VPN. By definition, the VPN is a private network that utilizes the Internet to connect to users and remote sites.

If, for example, you own a business in various cities, you can use the VPN to efficiently manage your people who are working in different locations. Of course, a fast and secure Internet connection is necessary to achieve this.

What’s probably the most important feature of the VPN is security. As its name suggests, the VPN utilizes a virtual connection that is routed through the web from the company’s private network to the employee or remote site. Anybody trying to intercept an encrypted data can’t, therefore, read it.

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Here are the two types of VPNs:

Remote Access

Also referred to as a Virtual Private Dial-up Network or VPDN, this is commonly used by companies who have remote employees who need to establish a connection to private networks. This user-to-LAN connection offers an encrypted connection between the user and the company’s private network. This is often accomplished through a third-party service provider.

Site to Site

A company may connect to various fixed sites over a public network such as the world wide web. A website merely needs a local connection to the same public network. This helps them save more money on long private leased lines.

What are the features of a well-designed VPN?

  • Network management
  • Policy management
  • Reliability
  • Scalability
  • Security

What benefits can companies get from a well-structured VPN?

  • Deliver faster return on investment (ROI) than traditional WAN
  • Enhance productivity
  • Extend geographic connectivity
  • Give telecommuter support
  • Minimize operational costs versus traditional WANs
  • Offer global networking opportunities
  • Reduce transit times and traveling expenses for remote users
  • Simplify network topology

Related: How Virtual Private Network Works?

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