Book Image

Getting started with SELinux System Administration [Video]

By : Sven Vermeulen
Book Image

Getting started with SELinux System Administration [Video]

By: Sven Vermeulen

Overview of this book

Do you have the crucial job of protecting your private and company systems from malicious attacks and undefined application behavior? Are you looking to secure your Linux systems with improved access controls? Look no further, intrepid administrator! This course will show you how to enhance your system's secure state across Linux distributions, helping you keep application vulnerabilities at bay. This video course covers the core SELinux concepts and shows you how to leverage SELinux to improve the protection measures of a Linux system. You will learn the SELinux fundamentals and all of SELinux's configuration handles including conditional policies, constraints, policy types, and audit capabilities. These topics are paired with genuine examples of situations and issues you will probably come across as an administrator.
Table of Contents (5 chapters)
Chapter 5
Controlling Network Communications
Content Locked
Section 2
Linux netfilter and SECMARK Support
The approach with TCP and UDP ports has a few downsides. One of them is that there is no knowledge of the target host, so you cannot govern where an application can connect to. Let’s see how we could tackle this situation with Linux netfilter and SECMARCK support. - Get introduced to netfilter - Assign labels to packets