Vermeulen SELinux System Administration

With a command of SELinux you can enjoy watertight security on your Linux servers. This guide shows you how through examples taken from real-life situations, giving you a good grounding in all the available features.
1. Auflage 2025
ISBN: 978-1-78328-318-7
Verlag: De Gruyter
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 120 Seiten

With a command of SELinux you can enjoy watertight security on your Linux servers. This guide shows you how through examples taken from real-life situations, giving you a good grounding in all the available features.Key Features - Use SELinux to further control network communications
- Enhance your system's security through SELinux access controls
- Set up SELinux roles, users and their sensitivity levels
Book DescriptionNSA Security-Enhanced Linux (SELinux) is a set of patches and added utilities to the Linux kernel to incorporate a strong, flexible, mandatory access control architecture into the major subsystems of the kernel. With its fine-grained yet flexible approach, it is no wonder Linux distributions are firing up SELinux as a default security measure. SELinux System Administration covers the majority of SELinux features through a mix of real-life scenarios, descriptions, and examples. Everything an administrator needs to further tune SELinux to suit their needs are present in this book. This book touches on various SELinux topics, guiding you through the configuration of SELinux contexts, definitions, and the assignment of SELinux roles, and finishes up with policy enhancements. All of SELinux's configuration handles, be they conditional policies, constraints, policy types, or audit capabilities, are covered in this book with genuine examples that administrators might come across. By the end, SELinux System Administration will have taught you how to configure your Linux system to be more secure, powered by a formidable mandatory access control.What you will learn - Enable and disable features selectively or even enforce them to a granular level
- Interpret SELinux logging to make security-conscious decisions
- Assign new contexts and sensitivity labels to files and other resources
- Work with mod_selinux to secure web applications
- Use tools like sudo, runcon, and newrole to switch roles and run privileged commands in a safe environment
- Use iptables to assign labels to network packets
- Configure IPSec and NetLabel to transport SELinux contexts over the wire
- Build your own SELinux policies using reference policy interfaces
Who this book is forLinux administrators will enjoy the various SELinux features that this book covers and the approach used to guide the admin into understanding how SELinux works. The book assumes that you have basic knowledge in Linux administration, especially Linux permission and user management.

Autoren/Hrsg.

Vermeulen, Sven

Fachgebiete

• Mathematik | Informatik EDV | Informatik EDV & Informatik Allgemein

Über Autor(innen)

Vermeulen Sven :

Sven Vermeulen (sjvermeu on Twitter) is a long-term contributor to various free software projects and the author of several online guides and resources, including the Gentoo Handbook. He got his first taste of free software in 1997 and never looked back. Within SELinux, Sven contributed several policies to the Reference Policy project, and actively participated in policy development and user space development projects. In his daily job, Sven is an enterprise architect in a European financial institution as well as a self-employed solution engineer and consultant. Prior to this, he graduated with an MSE in computer engineering from Ghent University and an MSc in ICT enterprise architecture from IC Institute.