Core Competence Report delivers a descriptive overview of virtual private networks that helps navigate through the jargon to find the facts.

Read a primer on virtual private networks which defines the different types including intranet, extranet and secure remote access.

Find a plain-English guide for managers on selecting a virtual private network provider. Includes 20 questions to ask a VPN provider.

Read a primer on virtual private networks. See the table of contents and illustrations about VPN technology.

Article reviews Checkpoint Software's Firewall-1, which supports virtual private networks, and explains how it will encrypt data on the Internet.

Article discusses degrees of encryption and authentication in a virtual private network and how a VPN integrates into an existing network.

Read a review of the hardware devices that support the IPSec protocol and IKEISAKMP/Oakely Resolution. Check out the performance reports.

Read Q&A covering encrypted access, header authentication, and firewall or remote access. Learn how to use Microsoft's ICS, and secure LAN connections.

Network Computing editor assesses the technology behind VPNs and describes the three different protocols that can be used to make them work.

Researcher at the Computer Science and Mathematics Division of the Oak Ridge National Laboratory describes IP-based VPN technology.

Index of developer's articles and tech ezine features addresses firewalls and SLAs, international market statistics, and tools for port scanning and traffic analysis.

ISP Planet article delineates the technologies that propel virtual private network services, managed and turnkey.

Service providers can access a supplement that details virtual private network products. Find Adobe Acrobat and HTML versions of the articles.