Course description
This highly practical instructor led Red Hat System Security course is aimed at Linux System Administrators who wish to enhance their knowledge of Red Hat Linux security and increase the security of their Red Hat Linux systems.
The course covers detecting and restricting users and applications for Red Hat Enterprise Linux (RHEL) and RHEL-based Linux systems. Security compliance, logging and auditing are also covered along with hardening related tasks. The topics taught are relevant for all Linux distributions. The command line is demonstrated and used extensively throughout the course.
Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.
Who will the Course Benefit?This Red Hat System Security course is aimed at Linux System Administrators who wish to expand their knowledge of the many Red Hat Linux security features and increase the security level of their Red Hat Linux systems.
Administrators who wish to increase the logging and auditing functionality of Red Hat Linux systems will also find the techniques and subjects covered in this course useful.
Course ObjectivesThis course aims to provide the delegate with the knowledge to be able to query their Red Hat Linux system for most security related events and harden many aspects of their system.
The course explains and demonstrates subjects such as the; Linux logging and auditing framework, SELinux, the firewall, certificate authorities, network time, Secure Shell, Pluggable Authentication Modules, Host Intrusion and Detection Systems (HIDS), detecting and removing malware, password cracking, administering Sudo and encrypting files.
Upcoming start dates
Suitability - Who should attend?
Delegates attending this course should have experience of administering Linux in an Enterprise environment to the level covered on the pre-requisite courses.
The requirements for this course can be met by one of the pre-requisite courses listed.
Where Red Hat 9 courses are listed in the Pre-Requisite Courses section equivalent Red Hat 7 or REd Hat 8 courses would also suffice.
Experience to the level as demonstrated in this course is recommended:
- Red Hat 9 System Administration - Part 1
Training Course Content
Red Hat System Security Training Course
Course Contents - DAY 1
Course Introduction- Administration and Course Materials
- Course Structure and Agenda
- Delegate and Trainer Introductions
- Linux Native Security
- Areas of Security
- Common Attack Methods
- Basic Security Precautions
- Standards and Compliance
- Security Technical Implementation Guides (STIGs)
- Exercise
- Managing User Accounts and Security Options
- Configuring Account Defaults
- Default File and Directory Permissions
- Configuring History Variables
- Querying and Confining Command Line History
- Exercise
- Security Related Log Files
- Querying Login Activity
- Viewing and Configuring the Journal
- Viewing and Understanding Audit Records
- Generating Audit Queries
- Defining Auditing Rules
- Audit Performance
- Exercise
- DAC vs MAC
- SELinux Policy
- SELinux Contexts
- SELinux Key Commands
- Viewing SELinux Decisions
- SELinux Booleans
- Permissive and Unconfined Domains
- Exporting SELinux Configuration
- Exercise
Course Contents - DAY 2
Session 5: SELINUX MODULES- SELinux Entities
- Listing and Administering SELinux Modules
- Creating Modules With audit2allow
- Writing and Editing SELinux Modules
- Type Enforcement and File Context Files
- Exercise
- Firewalld Overview
- Firewalld vs IPTables
- Configuring Firewall ports
- Creating a Firewall Service
- Creating and Configuring Firewall Zones
- Viewing and Creating Rich Rules
- Fail2ban Installation and Configuration
- Exercise
- SSH Key Algorithms
- SSH Agents and Server Options
- Restricting Authentication Methods
- Viewing and Encrypting the known_hosts File
- Certificate Based Authentication
- Verifying Signed Certificates
- Exercise
- TCP Wrapper Access Checking
- TCP Wrapper Extended Syntax
- Configuring an NTP Server
- Securing chrony and Authenticating Clients
- Exercise
Course Contents - DAY 3
Session 9: INTRUSION DETECTION AND PREVENTION- Detecting Host Intrusions
- Limitations of AIDE
- Installing and Configuring AIDE
- Detecting Filesystem Changes
- Detecting and Removing Rootkits
- Rootkit Best Practices
- Installing and Configuring ClamAV
- Exercise
- Common Vulnerabilities and Exposures (CVE's)
- Red Hat Package Management
- Obtaining Detailed Update Information
- Post Update Considerations and Rolling Back Packages
- Details on Security Packages
- Package Management History
- Creating and Signing an RMP Package
- Creating a Package Repository
- Exercise
- PAM File Format
- Restricting Services with PAM
- Restricting Access to SSH
- Increasing Password Complexity
- Delaying Failed Logins
- Controlling Access by Time
- Limiting user Resources
- Exercise
- Password Hashing Methods
- Verifying Password Strength
- Password Attacks Types
- Password Cracking
- Installing a Password Cracking Utility
- Installing a Word List
- Exercise
Course Contents - DAY 4
Session 13: SUDO AND RESTRICTING LOGINS- Basic Examples and Command Line Options
- Sudo Aliases, Tags and Groups
- Sudo Password Administration
- Running Sudo On Remote Systems
- Sudoedit
- Sudo Logging and Replay
- Include Statements
- Restricting root Access
- Configuring Timeouts
- Exercise
- Partitioning Considerations
- Protecting the Boot Menu
- Securely Erasing Data
- Data Sanitisation Methods
- Extended Permissions and File Attributes
- Creating and Modifying File Access Control Lists (ACLs)
- LUKS Encrypted Partitions
- Exercise
- IRed Hat Identity Management
- Identity Management Domain
- IDM Server and Client Installation and Configuration
- Creating a Certificate Authority
- Configuring Logging with TLS
- Securing VSFTPD for SSL/TLS
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Continuing Studies
Further Learning
- Red Hat 9 System Administration - Part 2
- Red Hat Networking
- Linux Shell Programming
- Linux Advanced Shell Programming Tools
- Apache Web Server
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