Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

Kennesaw State University
Skills you'll gain: Network Security, Network Administration, Security Management, Firewall, Cyber Attacks, Network Monitoring, Cybersecurity, General Networking, Cyber Security Assessment, Network Protocols, Virtual Private Networks (VPN), Wireless Networks, Vulnerability Assessments, Cloud Security, System Monitoring, Continuous Monitoring, TCP/IP, Intrusion Detection and Prevention, Cloud Computing, Threat Detection
★ 4.8 (239) · Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Incident Response, Disaster Recovery, Incident Management, Security Management, Cyber Operations, Business Continuity Planning, Safety and Security, Change Control, Threat Management, Information Technology Operations, Security Information and Event Management (SIEM), Patch Management, Security Controls, Cybersecurity, Threat Detection, Intrusion Detection and Prevention, Configuration Management, Continuous Monitoring, Vulnerability Management, Digital Forensics
★ 4.8 (30) · Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Virtual Networking, Virtualization, Dynamic Host Configuration Protocol (DHCP), Virtualization and Virtual Machines, Linux Administration, Linux Servers, Lightweight Directory Access Protocols, Network Administration, Virtual Machines, Linux, Network Architecture, Information Technology, Network Planning And Design, Virtual Environment, General Networking, Computing Platforms, System Configuration, Linux Commands, Remote Access Systems
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Information Assurance, Data Governance, Information Management, Data Storage
★ 4.6 (23) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Red Hat Enterprise Linux, Linux, User Accounts, Software Installation, Linux Administration, System Monitoring, File Management, Package and Software Management, Linux Commands, Operating System Administration, General Networking, File I/O, Command-Line Interface, Network Support, Computing Platforms, Authorization (Computing), Identity and Access Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Security Management, Cybersecurity, Vulnerability Scanning, Cyber Security Assessment, Brute-force attacks, Vulnerability Assessments, Security Awareness
★ 4.7 (4.6K) · Beginner · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: grep, Linux Commands, Linux, Unix Commands, Unix Shell, Linux Administration, Data Processing, Text Mining, Command-Line Interface, Data Manipulation, Unix, Automation
Beginner · Course · 1 - 3 Months

Skills you'll gain: User Accounts, Linux, Linux Administration, Shell Script, Linux Commands, User Provisioning, Unix Shell, Command-Line Interface, Operating System Administration, System Monitoring, File Systems, Unix, Scripting, Systems Administration, File Management, Software Installation, Virtual Machines, System Configuration, Operating Systems
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Generative Adversarial Networks (GANs), Anomaly Detection, AI Security, Fraud detection, Model Evaluation, Malware Protection, Cybersecurity, Threat Detection, Feature Engineering, Network Analysis, Cyber Attacks, Cyber Security Strategy, Classification Algorithms, Email Security, Network Security, Jupyter, Authentications, Machine Learning Methods, Machine Learning Algorithms, Artificial Intelligence
★ 4.3 (134) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Linux, Ubuntu, Shell Script, Linux Commands, Unix Shell, Linux Administration, Command-Line Interface, OS Process Management, File Systems, Virtualization and Virtual Machines, File Management, Virtual Environment, Virtualization, Virtual Machines, Software Installation, Graphical Tools
Beginner · Course · 1 - 3 Months

Skills you'll gain: Linux Commands, Package and Software Management, Linux, File Management, Command-Line Interface, Unix Commands, File Systems, Linux Administration, System Monitoring, Software Installation, Performance Tuning, Remote Access Systems, Shell Script, Unix Shell, Network Administration, User Accounts, grep, Unix, OS Process Management, General Networking
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Bash (Scripting Language), Shell Script, Linux Commands, Command-Line Interface, Linux, Unix Shell, Scripting, File I/O
★ 4.8 (78) · Intermediate · Guided Project · Less Than 2 Hours