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A brief historical analysis of the management of cryptography.
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Discusses the possibility that crackers might generate and distribute a massive list of encrypted passwords.
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Tutorial on using ppp over telnet to do network stuff transparently through an Internet firewall. (François-René Rideau)
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Teaches the basics of firewall systems and give you some detail on setting up both a filtering and proxy firewall on a Linux based PC, by Mark Grennan.
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Get the details of a secure Trustix 1.1 installation
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Brief introduction to the IP networking services, how to configure them, and how to set up a relatively secure Linux workstation. Published in ACM Crossroads, the ACM student magazine.
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A tutorial on how to setup a bridge and a firewall with Linux, by Peter Breuer.
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Describes how to obtain, install and configure the enhanced IP firewalling chains software for Linux, and how they might be used, by Paul Russell.
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Linux Security, server hardening, 1U server, 24x7 server admin, monitoring, IDS, NDS, firewalls
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General overview of security issues that face the administrator of Linux systems. It covers general security philosophy and a number of specific examples of how to better secure your Linux system from intruders.
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A small collection of Linux security white papers and other information resources. The papers cover secure shell (ssh), host security, and firewalls.
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How to achieve the goal of every system admin: boring, predictable computers
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Network Security Library has links to many UNIX (and, especially, Linux) security articles on host hardening, security admin guides, and special purpose hardening tips.
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Hyperlinked definitions and discussions of many cryptographic, mathematics, logic, statistics, and electronics terms used in cipher construction and analysis.
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Netfilter project provides HOWTOs for packet filtering, NAT and netfilter code hacking for Linux.
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Explains how to set up secure POP connections using ssh, by Manish Singh.
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Provides a checklist on how to secure UNIX/Linux NIS (formerly YP) services in an intranet environment.
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Setting up a secure server using RedHat Linux and LinuxFromScratch.
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A technical FAQ for the NSA SELinux project, which covers installation and implementation issues.
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This tutorial covers the installation and use of hacker protection software such as Portsentry, tripwire, ssh. It also covers configuration and administration steps to make a Linux server secure against hackers.
