Amit Chawla
VPN- Virtual Private Networks
VPN solutions support remote access and private data communications over public networks as a cheaper alternative to leased lines. VPN clients communicate with VPN servers utilizing a number of specialized protocols.
Subtopics
VPN Setup
VPN Hardware
VPN Software
VPN Security
As the popularity of the Internet grew, businesses turned to it as a means of extending their own networks. First came intranets, which are password-protected sites designed for use only by company employees. Now, many companies are creating their own VPN (virtual private network) to accommodate the needs of remote employees and distant offices.
What Is a VPN?
A Virtual Private Network (VPN) implements private networks over public infrastructure
VPN – Virtual Private Networking
VPN consists of private network access over public connections. A VPN can provide secure but more cost-effective LAN-WAN communication.
Introduction to VPN
Your organization may already be using a VPN to save money, but how do VPN solutions work? This article explains the basics.
VPN Practice Exam
This interactive quiz presents common questions and answers about VPN technology. Test your knowledge of VPN the fun and easy way.
How to Create VPN Connections in Windows XP
Follow these instructions to set up new Virtual Private Network (VPN) connections from a Windows XP client to a VPN server.
Top Free VPN Software Downloads
Several types of VPN software including clients, servers and utilities are readily available for download on the Internet. Use these free VPN software applications to set up more secure wireless / computer networks.
Cisco VPN Client
The Cisco VPN client provides a user interface for working with Cisco virtual private networks. Cisco Systems supplies free client downloads to install for use with their VPN server software.
Benefits of a VPN
Advantages of a VPN over alternative technologies include improved scalability and cost savings particularly for wireless networking and network management.
Do Virtual Private Networks Run Over Satellite Internet?
VPN and satellite Internet technologies were not designed to work together. However, it is possible to establish virtual private networks over satellite connections in many situations.
VPN Tunneling
A Virtual Private Network uses tunneling technology to establish private connections through public networks like the Internet.
PPTP – VPN Tunneling Protocol
PPTP is a network protocol (based on PPP) used in the implementation of Virtual Private Networks.
IPsec VPN
IPsec is a technology standard for implementing encryption and authentication with Internet Protocol, most commonly for a Virtual Private Network.
About VPN Error 800
One of the most common errors encountered when working with a VPN is error 800: “Unable to establish the VPN connection.”
Best Virtual Private Network Books
Any good VPN book covers the technology as well as business challenges surrounding VPN deployments.
VPN with Windows Server 2003 and Windows XP
This Microsoft whitepaper describes the support for virtual private networks available in Windows Server 2003 and Windows XP. Microsoft VPN utilizes both L2TP and IPSec.
Microsoft PPTP VPN Traffic Analysis
PPTP is a popular VPN protocol found in Windows operating systems. This page describes how PPTP traffic flows over a VPN.
