This howto describes the setup of a simple VPN using ssh and ppp.

How to configure masquerading of IPsec and PPTP VPN traffic.

This howto describes the setup of the IPsec alternative OpenVPN, which is available for Win32, MacOS X and Unix-based Operating Systems.

This howto describes the step to take when setting up a Linux based VPN.

Describes the SCSI Generic driver (sg) found in the Linux 2.4 production series of kernels, focusing on the interface and characteristics of the driver for application writers.

Collection of Linux VPN HowTos and free software.

An excellent source of IDS-related information, including security best practices, audit procedures, penetration testing, community information and more.

White paper outlining the basics of firewall systems and giving details on setting up both, a filtering and proxy firewall on a Linux based system.

Gives instructions on how to connect Handspring Visor (any version) to Linux, using USB. (January 1, 2003)

This documents intends to show how to build a Firewall/Gateway with rules set on user basis having the users authenticated by a Samba Primary Domain Controller