Skip to Content
SELinux
book

SELinux

by Bill McCarty
October 2004
Intermediate to advanced
256 pages
8h 16m
English
O'Reilly Media, Inc.
Content preview from SELinux

Policy Management Tools

Tresys Technology, a network services company, has published a set of open source GUI tools for SELinux policy management. Most releases of SELinux include at least one of the Tresys tools, which are:

Apol

Supports analysis of the SELinux policy.conf file.

Seaudit

Supports searching, sorting, and viewing AVC log messages.

Sepcut

Supports browsing and editing of SELinux policy components.

Seuserx

Supports adding, changing, and removing Linux and SELinux users.

The following subsections briefly describe these tools. My intention is not to show you how to use the tools but to help you understand what they do, so that you can decide when to use them and which tool to use. Because the tools are regularly improved, I advise you to refer to the tools’ help files for information on operating them. If your SELinux release does not include the Tresys tools, you can obtain them at http://www.tresys.com/.

Apol

The Apol tool enables you to analyze an SELinux policy. It does not work with the component files that compose the policy, but only with policy.conf. So you should compile the SELinux policy before using Apol. You can do so by issuing the command:

make load

from within the SELinux src/policy directory. Figure 9-1 shows Apol’s main window after using its File menu to open the policy.conf file.

Apol’s main window

Figure 9-1. Apol’s main window

Apol’s main window contains four primary tabs:

Policy ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Mastering Security-Enhanced Linux (SELinux)

Mastering Security-Enhanced Linux (SELinux)

Sander van Vugt
Kubernetes Security and Observability

Kubernetes Security and Observability

Brendan Creane, Amit Gupta
Hacking Kubernetes

Hacking Kubernetes

Andrew Martin, Michael Hausenblas

Publisher Resources

ISBN: 0596007167Catalog PageErrata