| Learn how to lock down Linux |
Apr. 28, 2005
In a three-part series of articles, IBM's Mario Eberlein, Rene Auberger, and Wolfram Andreas Richter explain both the theoretical and practical sides of Linux system security. The series educates on security fundamentals while explaining how to secure a Linux system step-by-step -- from planning to maintaining fully configured systems.
The first article in the series is an introduction defining such core concepts as security, integrity, and confidentiality in the context of system security.
The second article focuses on the planning stage of security, beginning with an analysis of available hardware, user needs, network access, and risks, then moving to the creation of a "detailed action plan" by:- Choosing a linux distribution
- Choosing software packages like firewall, intrusion detection, and auditingsoftware
- Choosing additional software (includes a chart of secure alternatives to common utilities)
- Partitioning
The third article covers "hardening" the system, with tips on:- Securing the boot process
- Securing services and daemons
- Securing local file systems
- Enforcing quotas and limits (as established in the planning stage)
- Enabling Mandatory Access Control
- Updating and adding security patches
Read the full three-part series on IBM's DeveloperWorks website:
Securing Linux
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