Zero Trust Security: An Enterprise Guide

© Jason Garbis and Jerry W. Chapman 2021

J. Garbis, J. W. ChapmanZero Trust Securityhttps://doi.org/10.1007/978-1-4842-6702-8_9

9. Virtual Private Networks

Jason Garbis¹   and Jerry W. Chapman²

(1)

Boston, MA, USA

(2)

Atlanta, GA, USA

 

Virtual Private Networks (VPNs) were first created and deployed in the mid-1990s, as a response to the increasing adoption of enterprise networks, combined with increasingly broad home usage of PCs (either “portable” or desktop PCs deployed in people’s homes). Underlying network protocols have evolved and become more standardized (and more secure) over time, of course, but the core concept has remained unchanged: An encrypted network tunnel is established between remote nodes, permitting application traffic to be securely ...