L2F
CISCO's Layer Two Forwarding protocol OpenVPN 2.0 HOWTO
This howto describes the setup of the IPsec alternative OpenVPN, which is available for Win32, MacOS X and Unix-based Operating Systems. Replacing a Windows PPTP server with Linux
Replacing a Windows PPTP server with Linux PopTop. Highly Available VPNs on Linux
This tutorial covers the setup of a HA-VPN using FreeSWAN or Openswan and the Zebra routing daemon. Information about Check Point VPN-1/FireWall-1
This site gives valuable information about the Checkpoint VPN-1 product and its interoperability with other VPN implementations. NG FAQ - VPN with FreeS/WAN - by AERAsec
This document covers the steps and pitfalls connecting a CheckPoint NG FW-1 to a FreeSWAN Linux-Box using preshared keys and X.509 certificates. An Intro To SSL VPN
An article discusses the types of VPN available, benefits, and considerations necessary when deploying SSL VPNs. Official IPsec Howto for Linux
This howto describes the step to take when setting up a Linux based VPN. Using a Linux L2TP/IPsec VPN server
This document gives you the background and show the steps for implementing an L2TP/IPsec based VPN using Linux, Windows and MacOSX Freeswan and a Cisco PIX 501
Creating an interoperable VPN using the free FreeSWAN/Openswan and a Cisco PIX 501. Poptop MSCHAP2 ADS
This Howto describes the steps to setup a Linux PopTop PPTP Server using MSCHAPv2. For Authentication either Radius or an Active Directory Domain controller may be used. Microsoft's PPTP FAQ
Point-to-Point-Tunneling Protocol (PPTP) is a networking technology that supports multiprotocol virtual private networks (VPN). Configuring an IPsec tunnel between Openswan and Windows
This document gives you the details how to setup a virtual private network between Linux/Openswan on one side and Microsoft Windows 2000 and XP on the other side. What Is A Virtual Private Network?
A Network Computing Online Article OpenVPN using X.509 certificates
This document explains how to deploy a VPN using OpenVPN and OpenSSL. German book covering Linux VPNs
This site offers a german book (pdf) covering Linux VPNs for download. Virtual Private Networks (VPN)
This document discusses key concepts related to Virtual Private Networks Bruce Schneier's FAQ concerning Microsoft's PPTP Implementation
Bruce Schneier Analysis of the Microsoft PPTP implementation. Why is PPTP bad. Linux VPN Howto using SSH and PPP
This howto describes the setup of a simple VPN using ssh and ppp.