NIST Computer Security Resource Clearinghouse - Collects and disseminates computer security information and resources to help users, systems administrators, managers, and security professionals better protect their data and systems. AIX 4.3 Network Hardening - Recipes to secure network services on AIX. Download of scripts available. Absence of Malice - Editorial from Dr. Dobb's Journal about Randal Schwartz's felony convictions for running Crack on unauthorized machines. Unix Security - Paper by Rajib K. Mitra about file permissions, daemons, stack overflows and scripts. Securing Debian HOWTO - Protecting Debian during installation and securing network services. Auditing UNIX Systems: A Case Study - This report, written as a case study, presents results of a detailed information security audit of UNIX systems that belong to a fictitious company. It illustrates an approach to performing such an examination. Secure Programming for Linux and Unix HOWTO - Online book on software security tips. TPEP Frequently Asked Questions - The Computer Security Evaluation Frequently Asked Questions (V2.1) Unix security basics, Part 1 - Understanding file attribute bits and modes Secure UNIX Programming FAQ - Definitions of security holes, security principles, how to access files safely, and untainting input. Writing Safe Setuid Programs - Collection of papers on writing safe setuid programs by Matt Bishop. Raw IP Networking FAQ - Thamer Al-Herbish's Raw IP Networking FAQ about networking below TCP/UDP and sniffing networks. Includes raw socket source code.