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Improving Linux Security Using Medusa A project called Medusa provides a Linux kernel patch that intercepts certain kernel routines and queries an extra-kernel security provider. While this is similar to PAM, it has a number of advantages. First and foremost, applications are ignorant of the security system; they don't have to be specially coded to take advantage of the system. Second, security applies to a wide range of system resources, with a high level of granularity. Medusa, therefore, provides not only file-level access control, but can also be configured to control access to processes, or virtually any other system resource.
By Sean Russell, 03/13/2004
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Linux 2.4: Next Generation Kernel Security This document outlines the kernel security improvements that have been made in the 2.4 kernel. A number of significant improvements including cryptography and access control make 2.4 a serious contender for secure corporate environments as well as private virtual networking.
03/08/2004
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Real World Linux Security: Bob Toxen's Perspective In this interview, Bob introduces his new book, discusses the "seven deadly sins" of Linux security, and outlines the benefits of the open source software model. He also points out the pitfalls that many system administrators fall into and how to avoid them.
03/02/2004
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Best Practices guide for securing the Linux Workstation There is no silver bullet in security; rather, due diligence and knowledge are the best foundations for solid management of risk. The focus of this document is distinctively on workstations: those located in a corporate environment, those situated at the house, and the myriad of situations that fall somewhere in-between.
03/02/2004
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Managing Linux Security Effectively in 2004 This article examines the process of proper Linux security management in 2004. First, a system should be hardened and patched. Next, a security routine should be established to ensure that all new vulnerabilities are addressed. Linux security should be treated as an evolving process.
02/17/2004
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Linux Kernel Hardening This paper explores two approaches to hardening the standard Linux kernel: address space (memory) protection and advanced access control.
02/16/2004
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