Interest
Proportion of Hacker News items mentioning "vpn" over time.
Mentions
Total number of Hacker News items mentioning "vpn" over time.
A virtual private network (VPN) is an overlay network that uses network virtualization to extend a private network across a public network, such as the Internet, via the use of encryption and tunneling protocols. In a VPN, a tunneling protocol is used to transfer network messages from one network host to another. Read more on Wikipedia