Overview
This instructor-led 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.
What you will learn?
In this course you will 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., and more.
What you will gain?
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.
Requirements
To make the most of of this course, you should:
- Have a solid understanding of core local system administration and networking concepts equivalent to that obtained from LFS301 Linux System Administration and LFS311 Linux Networking and Administration.
- Be experienced with Linux (or more generally UNIX), especially at the command line level.
Audience
This course is for individuals already experienced in Linux system administration who want to improve their security posture. Before enrolling, you should have a solid understanding of core local system administration and networking concepts, and be experienced with Linux (or more generally UNIX), especially at the command line level.
Experience Level: Intermediate
Course Outline
Introduction
- Linux Foundation
- Linux Foundation Training
- Linux Foundation Certifications
- Linux Foundation Digital Badges
- Laboratory Exercises, Solutions and Resources
- E-Learning Course: LFS216
- Distribution Details
- Labs
- Security Basics
What is Security?
- Assessment
- Prevention
- Detection
- Reaction
- Labs
- Threats and Risk Assessment
Classes of Attackers
- Types of Attacks
- Trade Offs
- Labs
- Physical Access
Physical Security
- Hardware Security
- Understanding the Linux Boot Process
- Labs
- Logging
Logging Overview
- Syslog Services
- journald Services
- The Linux Kernel Audit Daemon
- Linux Firewall Logging
- Log Reports
- Labs
- Auditing and Detection
Auditing Basics
- Understanding an Attack Progression
- Detecting an Attack
- Intrusion Detection Systems
- Labs
- Application Security
Bugs and Tools
- Tracking and Documenting Changes
- Resource Access Control
- Mitigation Techniques
- Policy Based Access Control Frameworks
- Real World Example
- Labs
- Kernel Vulnerabilities
Kernel and User Spaces
- Bugs
- Mitigating Kernel Vulnerabilities
- Vulnerabilities Examples
- Labs
- Authentication
Encryption and Authentication
- Passwords and PAM
- Hardware Tokens
- Biometric Authentication
- Network and Centralized Authentication
- Labs
- Local System Security
Standard UNIX Permissions
- Administrator Account
- Advanced UNIX Permissions
- Filesystem Integrity
- Filesystem Quotas
- Labs
- Network Security
TCP/IP Protocols Review
- Remote Trust Vectors
- Remote Exploits
- Labs
- Network Services Security
Network Tools
- Databases
- Web Server
- File Servers
- Labs
- Denial of Service
Network Basics
- DoS Methods
- Mitigation Techniques
- Labs
- Remote Access
Unencrypted Protocols
- Accessing Windows Systems
- SSH
- IPSEC VPNs
- Labs
- Firewalling and Packet Filtering
Firewalling Basics
- iptables
- Netfilter Implementation
- Netfilter rule management
- Mitigate Brute Force Login Attempts
- nft Concepts
- Labs
- Response and Mitigation
Preparation
- During an Incident
- Handling Incident Aftermath
- Labs
- Compliance testing with OSCAP
Compliance Testing
- SCAP Introduction
- OpenSCAP
- SCAP Workbench
- Command Line Scan
- Labs