September 2014
Intermediate to advanced
240 pages
5h 53m
English
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Analyzing SELINUX_ERR messages
When the SELinux subsystem is asked to perform an invalid SELinux-specific operation, it will log this through the audit subsystem using the SELINUX_ERR message type.
Getting ready
Make sure that the audit subsystem is up and running as we will be using the ausearch application to (re)view audit events:
~# service auditd start
How to do it…
Analyzing SELINUX_ERR messages is done by viewing the entry in the audit logs and understanding the individual fields; this is done by completing the following steps:
- Note the current date/time, or reload the SELinux policy, to have a clear point in the audit logs from where to look:
~# semodule -R - Trigger the behavior in the application.
- Ask the audit subsystem to show the last events ...
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O’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.
I 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.
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I'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.