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Firewall HOWTO collection, ids, nids, hardening, penetration testing, auditing
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Linux-Sec.net Linux is a registered trademark of Linus Torvalds More Linux Legalese Linux-Sec.net Security Mailing Lists just starting, low volume LSec Monthly Meeting PreSorted 8100+ Security Related Sites The Comments,Laws Stated Below credited to its owner Security is NOT: Security is...A comprehensive security guide aimed at administrators and users, available online in Acrobat PDF format, by Kurt Seifried.
https://www.seifried.org/lasg/
A brief historical analysis of the management of cryptography.
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Cryptography is one of the oldest fields of technical study we can find records of, going back at least 4,000 years. It is quite noteworthy that of all the cryptosystems developed in those 4,000 years of effort, only 3 systems...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.
http://www.acm.org/crossroads/xrds6-1/linuxsec.html
Discusses the possibility that crackers might generate and distribute a massive list of encrypted passwords.
ftp://ftp.cs.arizona.edu/reports/1994/TR94-34.ps
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.
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Linux: Internet Server Security and Configuration Tutorial Any computer connected to the internet will require steps and precautions to be taken to reduce the exposure to hacker threats. Web, mail and DNS servers are especially vulnerable. Large operations will hide behind a CISCO firewall for most of...How to achieve the goal of every system admin: boring, predictable computers
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ITworld.com Linux security basics There seem to be two kinds of people in the world: those who think computer security is fun and exciting, and those who think it is arcane and scary. Professional system administrators who read their logs will tell you computer...Get the details of a secure Trustix 1.1 installation
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ITworld.com Installing a firewall, Part 1 Is wireless up to your standards? Standards and features of today's most innovative wireless LANs. Layered Security Practices for Incorporating Wireless LANs into Intranets Nokia introduces new firewall/VPN appliance Big firewall in a small package Sygate adds intrusion detection to...Hyperlinked definitions and discussions of many cryptographic, mathematics, logic, statistics, and electronics terms used in cipher construction and analysis.
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Ritter's Crypto Glossary and Dictionary of Technical Cryptography Learn why cryptography cannot be guaranteed! See Cryptography's Hall of Shame Old Wives Tales A Ciphers By Ritter Page Terry Ritter 2005 December 6 Copyright 1995 to 2005 Terry Ritter. All Rights Reserved. For a basic introduction to cryptography, see...Netfilter project provides HOWTOs for packet filtering, NAT and netfilter code hacking for Linux.
http://www.samba.org/netfilter/unreliable-guides/
Provides a checklist on how to secure UNIX/Linux NIS (formerly YP) services in an intranet environment.
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Securing NIS The following is a brief compendium of what we at Auburn Univeristy College of Engineering use to secure our NIS networks. We had a mix of about 65% NIS, 35% NIS+ network before dropping NIS+ due to reliability problems and...Sec.ure.org contains overviews of security-enhancing procedures including Apache authentication, LDAP and several others.
http://sec.ure.org
A small collection of Linux security white papers and other information resources. The papers cover secure shell (ssh), host security, and firewalls.
http://www.ists.dartmouth.edu/IRIA/knowledge_base/
Network Security Library has links to many UNIX (and, especially, Linux) security articles on host hardening, security admin guides, and special purpose hardening tips.
http://secinf.net/unix_security/
A technical FAQ for the NSA SELinux project, which covers installation and implementation issues.
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The UnOfficial SELinux FAQ Linux ready for production Why does the newrole command prompt for authentication What is the performance impact of running SELinux Is SELinux suitable for desktop users Getting SELinux Where do I get SELinux from What do I need to get...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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Firewall and Proxy Server HOWTO This document is designed to describe the basics of firewall systems and give you some detail on setting up both a filtering and proxy firewall on a Linux based system. An HTML version of this document is available at http...Tutorial on using 'term' to do network stuff through a TCP firewall that you're not supposed to be able to, by Barak Pearlmutter.
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Using Term to Pierce an Internet Firewall mini-HOWTO This document explains how to use the term program to pierce a firewall from the inside, even without root privileges. Term is an old program that almost no one uses anymore, because the 7-bit serial lines it is meant to...Explains how to set up secure POP connections using ssh, by Manish Singh.
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Secure POP via SSH mini-HOWTO This document explains how to set up secure POP connections using ssh. 1. Introduction 2. The Basic Technique 2.1 Setting up Port Forwarding 2.2 Testing it out 3. Using it With Your Mail Software 3.1 Setting up fetchmail 3.2 Automating...Security issues that face the administrator, security philosophy, examples of how to secure the system from intruders.
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Linux Security HOWTO This document is a 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. Also included are...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 IPCHAINS-HOWTO This document aims to describe how to obtain, install and configure the enhanced IP firewalling chains software for Linux, and some ideas on how you might use them. 1. Introduction 1.1 What? 1.2 Why? 1.3 How? 1.4 Where? 2. Packet...A tutorial on how to setup a bridge and a firewall with Linux, by Peter Breuer.
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Linux Bridge+Firewall Mini-HOWTO version 1.2.0 Next Previous Contents Linux Bridge+Firewall Mini-HOWTO version 1.2.0 Peter Breuer ptb@it.uc3m.es)v, 19 December 1997 1. Introduction 2. What and Why (and How 2.1 What 2.2 Why 2.3 How? 3. BRIDGING 3.1 Software 3.2 Prior Reading. 3.3 Boot configuration 3.4 Kernel...Tutorial on using ppp over telnet to do network stuff transparently through an Internet firewall. (François-René Rideau)
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Firewall Piercing mini-HOWTO Directions for using ppp over ssh, telnet or whatever, so as to do achieve transparent network connection accross a firewall. Applies to friendly VPN construction as well as to piercing unfriendly firewalls.Table of Contents1. Stuff1.1. DISCLAIMER1.2. Legal Blurp1.3. Looking for...