Links:
A Bit About Security by Marcus Berglund: a personal experience of the importance of maintaining security on a Linux box Adding Security to Common Linux Distributions discusses ways in which system administrators can help secure there system from intruders. It discusses several ways to improve the security of Linux systems. Armoring Linux Preparing your linux box for the Internet: the aim of this article is to improve the security of a Linux box Breakin' Out of the chroot() Jail a document that discusses the pros and cons of using a chroot jail to restrict access to a part of a filesystem Corporate Security on the Internet an article focusing on Corporate security with reference to many Linux based systems and tools Creating A Linux Firewall Using the TIS Firewall Toolkit explains very thoroughly how to build your own ``bastion host'' firewall with Linux Creating A Linux Firewall Using the TIS Firewall Toolkit Benjamin Ewy explains very thoroughly how to build your own bastion host'' firewall with Linux Cryptographic software solutions and how to use them intended as a basic primer for people that do not know a lot (or anything as the case may be) about cryptography but are interested or concerned about it FAQ - Malicious Web Scripts by the CERTŪ Coordination Center Gnu Privacy Guard tutorial a tutorial overview of using Gnu Privacy Guard to generate your own public keys. It will also discuss some of the principles of public key systems Improving Apache Unix admins swear by Apache's out-of-the-box robustness, but certain configuration steps are needed to ensure the Web server's security Introducing SSL and Certificates using SSLeay guides users in implementing SSL, and pulls together various concepts, definitions, and examples as a starting point for further exploration Linux Security 101 an introduction to security for Linux systems. The emphasis is on introduction Linux Security 101 by Kelley Spoon: an introduction to tcpd (access control facility for internet services) Linux Security Quick Reference Guide intended to provide a starting point for improving the security of your system. Contained within include references to security resources around the net, tips on securing your Linux box, and general security information More Linux Security an article on Linux security that is geared towards a slightly novice audience Ramping up Linux Security examines the important issues such as backups, updates, inspecting your logs, tripwire Securing Your Linux Box by Peter Vertes: a short article about passwords Security and Apache: An Essential Primer a tutorial on securing a Linux/Apache system The hidden treasures of iptables iptables has a lot more to offer than simple packet-filtering criteria based on protocol, ports and addresses. Some of the extras are fairly well known and even may make their way into some off-the-shelf Linux distributions, but some lesser-known features are worthy of investigation