Linux Security

4 Day Course
Hands On
Official The Linux Foundation Curriculum
Code LFS416

Book Now - 1 Delivery Method Available:

Classroom Virtual Classroom Private Group - Virtual Self-Paced Online


Security is always a concern, and with major security holes like Shellshock and Heartbleed being announced regularly, it’s more critical than ever to secure the data you are liable for. This course will walk you through the many risks and threats that exist, show you how to use best practices and other open-source tools to mitigate or counteract those threats, and teach you what you need to know to detect and recover from those attacks that do happen.

This advanced, completely hands-on course adopts a highly technical approach to cover important security techniques and tools. By providing visibility both into attack vectors and possible security holes, this course provides you a complete guide on how to mitigate security risks in any Linux environment.

You’ll learn:

  • How to assess security risks in your enterprise Linux environment.
  • The best techniques and tools to increase security.
  • Server hardening
  • How to deploy and use monitoring and attack detection tools.
  • How to gain visibility into possible vulnerabilities.
  • The art and science of developing your Linux security policy and response strategy.
  • How to configure your systems for compliance with HIPAA, DISA STIG, etc.

This course is designed to work with a wide range of Linux distributions, so you will be able to apply these concepts regardless of your distro.


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Introduction (7 topics)

  • Linux Foundation
  • Linux Foundation Training
  • Linux Foundation Certifications
  • Laboratory Exercises, Solutions and Resources
  • E-Learning Course: LFS216
  • Distribution Details
  • Labs

Security Basics (6 topics)

  • What is Security?
  • Assessment
  • Prevention
  • Detection
  • Reaction
  • Labs

Threats and Risk Assessment (4 topics)

  • Classes of Attackers
  • Types of Attacks
  • Trade Offs
  • Labs

Physical Access (4 topics)

  • Physical Security
  • Hardware Security
  • Understanding the Linux Boot Process
  • Labs

Logging (6 topics)

  • Logging Overview
  • Syslog Services
  • The Linux Kernel Audit Daemon
  • Linux Firewall Logging
  • Log Reports
  • Labs

Auditing and Detection (5 topics)

  • Auditing Basics
  • Understanding an Attack Progression
  • Detecting an Attack
  • Intrusion Detection Systems
  • Labs

Application Security (7 topics)

  • Bugs and Tools
  • Tracking and Documenting Changes
  • Resource Access Control
  • Mitigation Techniques
  • Policy Based Access Control Frameworks
  • Real World Example
  • Labs

Kernel Vulnerabilities (5 topics)

  • Kernel and User Spaces
  • Bugs
  • Mitigating Kernel Vulnerabilities
  • Vulnerabilities Examples
  • Labs

Authentication (6 topics)

  • Encryption and Authentication
  • Passwords and PAM
  • Hardware Tokens
  • Biometric Authentication
  • Network and Centralized Authentication
  • Labs

Local System Security (6 topics)

  • Standard UNIX Permissions
  • Administrator Account
  • Advanced UNIX Permissions
  • Filesystem Integrity
  • Filesystem Quotas
  • Labs

Network Security (4 topics)

  • TCP/IP Protocols Review
  • Remote Trust Vectors
  • Remote Exploits
  • Labs

Network Services Security (5 topics)

  • Network Tools
  • Databases
  • Web Server
  • File Servers
  • Labs

Denial of Service (4 topics)

  • Network Basics
  • DoS Methods
  • Mitigation Techniques
  • Labs

Remote Access (5 topics)

  • Unencrypted Protocols
  • Accessing Windows Systems
  • SSH
  • Labs

Firewalling and Packet Filtering (6 topics)

  • Firewalling Basics
  • iptables
  • Netfilter Implementation
  • Netfilter rule management
  • Mitigate Brute Force Login Attempts
  • Labs

Response and Mitigation (4 topics)

  • Preparation
  • During an Incident
  • Handling Incident Aftermath
  • Labs

Compliance testing with OSCAP (6 topics)

  • Compliance Testing
  • SCAP Introduction
  • OpenSCAP
  • SCAP Workbench
  • Command Line Scan
  • Labs


  • Have a solid understanding of core local system administration and networking concepts equivalent to that obtained from LFS301 Linux System Administration and LFS311 Linux Network Management.
  • Be experienced with Linux (or more generally UNIX), especially at the command line level.

Additional Learning

The courses below may help you meet the knowledge level required to take this course.

Scheduled Dates

Please select from the dates below to make an enquiry or booking.


Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.

Code Location Duration Price Jun Jul Aug Sep Oct Nov
Later scheduled dates may be available for this course.

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