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Red Hat Enterprise Linux Server Cookbook

You're reading from   Red Hat Enterprise Linux Server Cookbook Over 60 recipes to help you build, configure, and orchestrate RHEL 7 Server to make your everyday administration experience seamless

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781784392017
Length 250 pages
Edition 1st Edition
Tools
Concepts
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Authors (2):
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Jakub Gaj Jakub Gaj
Author Profile Icon Jakub Gaj
Jakub Gaj
William Leemans William Leemans
Author Profile Icon William Leemans
William Leemans
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Toc

Table of Contents (12) Chapters Close

Preface 1. Working with KVM Guests FREE CHAPTER 2. Deploying RHEL "En Masse" 3. Configuring Your Network 4. Configuring Your New System 5. Using SELinux 6. Orchestrating with Ansible 7. Puppet Configuration Management 8. Yum and Repositories 9. Securing RHEL 7 10. Monitoring and Performance Tuning Index

Configuring SELinux booleans


SELinux booleans allow you to change the SELinux policy at runtime without the need to write additional policies. This allows you to change the policy without the need for recompilation, such as allowing services to access NFS volumes.

How to do it…

This is the way to temporarily or permanently change SELinux booleans.

Listing SELinux booleans

For a list of all booleans and an explanation of what they do, execute the following:

~# semanage boolean -l

Now, let's try to get the value of a particular SELinux boolean. It is possible to get the value of a single SELinux boolean without the use of additional utilities, such as grep and/or awk. Simply execute the following:

~# getsebool <SELinux boolean>

This shows you whether or not the boolean is set. Here's an example:

~# getsebool virt_use_nfs
virt_use_nfs --> off
~#

Changing SELinux booleans

To set a boolean value to a particular one, use the following command:

~# setsebool <SELinux boolean> <on|off...
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