Linux Security Basics Online Course
Linux Security Basics Online Course
This course is designed to provide a practical and detailed approach to securing Linux environments. It covers essential security techniques used to protect data, networks, and services from cyber threats. You will start by understanding key security features built into modern Linux distributions, including log management, user authentication auditing, and firewall configurations. As you progress, you will learn to encrypt files and storage, secure services with SELinux, and isolate applications using containers and chroot jails. The course also emphasizes network security, helping you configure firewalls, secure remote connections, and verify encryption strength using security testing tools. By the end of this course, you will have the knowledge and hands-on experience to implement, monitor, and test security measures that ensure your Linux systems are protected against threats.
Key Benefits
- Comprehensive coverage of Linux security techniques and best practices
- Practical hands-on exercises to strengthen security skills
- Learn to encrypt data, configure firewalls, and audit authentication logs
- Understand and implement SELinux security policies
- Use security testing tools to verify network and system security
Target Audience
- System administrators who want to secure Linux servers
- Cybersecurity professionals who need expertise in Linux security
- IT professionals responsible for managing secure Linux environments
- Developers and DevOps engineers working with Linux-based applications
- Anyone preparing for Linux security certifications
Learning Objectives
- Understand Linux security features and system auditing techniques
- Monitor and analyze logs using syslog and journald
- Audit user passwords and track login attempts
- Secure files and data using encryption methods like LUKS and GPG
- Implement firewall security using iptables and firewalld
- Use SELinux to restrict and control access to services
- Isolate applications with chroot jails and LXC containers
- Perform security testing to verify configurations and encryption methods
Course Outline
The Linux Security Basics Exam covers the following topics -
Module 1 - Monitoring and Auditing Security
- Introduction to Linux security monitoring tools
- Using syslog to manage and analyze logs
- Configuring journald for advanced logging features
- Auditing user passwords and enforcing strong authentication
- Checking filesystem security and detecting unauthorized changes
- Auditing SUID and SGID files for security risks
- Preventing brute-force attacks and tracking failed login attempts using fail2ban
Module 2 - Data Security and Encryption
- Encrypting disk storage with LUKS for data protection
- Using GPG encryption to secure files and communications
- Verifying file integrity using MD5 and SHA checksums
- Securing remote access and data transmission with SSH encryption
Module 3 - Securing Linux Services
- Implementing SELinux for enhanced service security
- Understanding SELinux policies and their impact on system security
- Using chroot jails to isolate applications and limit access
Module 4 - Linux Containers and Application Security
- Understanding Linux Containers (LXC) and their role in security
- Using LXC to isolate applications and prevent system compromise
Module 5 - Network Security and Firewall Management
- Using TCP Wrappers to control access to network services
- Configuring iptables to manage firewall rules and protect networks
- Securing network connections and traffic flow with firewalld
Module 6 - Security Testing and Verification
- Checking firewall configurations for vulnerabilities
- Verifying encrypted network communication using security tools
- Analyzing network data encryption to detect weaknesses
