Red Hat Enterprise SELinux Policy Administration
Starting dates and places
Description
Prerequisites:
RHS429 requires RHCE-level skills. Prerequisite skills can be shown by passing the RHCE Exam in either RH302 or RH300, or by taking RH253 or by possessing comparable skills and knowledge.Course Description:
RHS429 introduces advanced system administrators, security administrators, and applications programmers to SELinux policy writing. Participants in this course will learn how SELinux works; how to manage SELinux; and how to write an SELinux policy. This class culiminates in a major project to scope out and then write policies for previously unprotected services.
This course includes the following modules:
Introduction to SELinux
- Discretionary Access Control vs. Mandatory Access …
Frequently asked questions
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Prerequisites:
RHS429 requires RHCE-level skills. Prerequisite skills can be shown by passing the RHCE Exam in either RH302 or RH300, or by taking RH253 or by possessing comparable skills and knowledge.Course Description:
RHS429 introduces advanced system administrators, security administrators, and applications programmers to SELinux policy writing. Participants in this course will learn how SELinux works; how to manage SELinux; and how to write an SELinux policy. This class culiminates in a major project to scope out and then write policies for previously unprotected services.
This course includes the following modules:
Introduction to SELinux
- Discretionary Access Control vs. Mandatory Access Control
- SELinux History and Architecture Overview
- Elements of the SELinux security model (user identity and role, domain and type, sensitivity and categories, security context)
- SELinux Policy and Red Hat?ᨕs Targeted Policy
- Configuring Policy with Booleans
- Archiving
- Setting and Displaying Extended Attributes
- Hands-on Lab: Understanding SELinux
Using SELinux
- Controlling SELinux
- File Contexts
- Relabeling Files and Filesystems
- Mount options
- Hand-on Lab: Working with SELinux
The Red Hat Targeted Policy
- Identifying and Toggling Protected Services
- Apache Security Contexts and Configuration Booleans
- Name Service Contexts and Configuration Booleans
- NIS Client Contexts
- Other Services
- File Context for Special Directory Trees
- Troubleshooting and avc Denial Messages
- setroubleshootd and Logging
- Hands-on Lab: Understanding and Troubleshooting the Red Hat Targeted Policy
Introduction to Policies
- Policy Overview and Organization
- Compiling and Loading the Monolithic Policy and Policy Modules
- Policy Type Enforcement Module Syntax
- Object Classes
- Domain Transition
- Hands-on Lab: Understanding policies
Policy Utilities
- Tools available for manipulating and analyzing policies
- Hands-on Lab: Exploring Utilities
User and Role Security
- Role-based Access Control
- Multi Category Security
- Defining a Security Administrator
- Multi-Level Security
- The strict Policy
- User Identification and Declaration
- Role Identification and Declaration
- Roles in Use in Transitions
- Role Dominance
- Hands-on Lab: Implementing User and Role Based Policy Restrictions
Anatomy of a Policy
- Policy Macros
- Type Attributes and Aliases
- Type Transitions
- When and How do Files Get Labeled
- restorecond
- Customizable Types
- Hands-on Lab: Building Policies
Manipulating Policies
- Installing and Compiling Policies
- The Policy Language
- Access Vector
- SELinux logs
- Security Identifiers - SIDs
- Filesystem Labeling Behavior
- Context on Network Objects
- Creating and Using New Booleans
- Manipulating Policy by Example
- Macros
- Enableaudit
- Hands-on Lab: Compiling Policies
Project
- Best practices
- Create File Contexts, Types and Typealiases
- Edit and Create Network Contexts
- Edit and Create Domains
- Hands-on Lab: Editing and Writing Policy
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