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.

Skills you'll gain: Network Security, Encryption, OSI Models, IT Security Architecture, Network Performance Management, Network Architecture, Computer Networking, Network Monitoring, Remote Access Systems, TCP/IP, Network Infrastructure, Network Troubleshooting, Network Protocols, Infrastructure Security, Wireless Networks, Virtual Private Networks (VPN), Endpoint Security, Cloud Security, Routing Protocols, Software-Defined Networking
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), Angular, OAuth, Test Driven Development (TDD), Cryptography, Data Validation, Unit Testing, Vue.JS, Data Security, Authentications, HTML and CSS, Encryption, Authorization (Computing), General Data Protection Regulation (GDPR), Web Applications, JavaScript Frameworks, Javascript, Security Strategy, Computer Programming
Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Computer Security Incident Management, Incident Management, Incident Response, Security Management, Threat Management, Security Strategy, Event Monitoring, Security Information and Event Management (SIEM), Cyber Attacks, Continuous Monitoring, Enterprise Security, Security Awareness, Cyber Operations, Information Technology Operations, Automation, Systems Integration
Beginner · Course · 1 - 4 Weeks
Microsoft
Skills you'll gain: Prompt Engineering, Microsoft Copilot, Security Information and Event Management (SIEM), Cyber Threat Hunting, Security Software, Microsoft Azure, Security Controls, Cyber Security Assessment, Incident Response, Generative AI, Artificial Intelligence, Query Languages
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Criminal Investigation and Forensics, Investigation, File Systems, Mobile Security, Cybersecurity, Data Security, Threat Detection, Data Integrity, Graphical Tools, Digital Communications, Malware Protection, File Management, Computer Security Incident Management, Incident Response, Mobile Development Tools, Data Storage, Real Time Data, Disaster Recovery, Network Analysis, Regulation and Legal Compliance
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cybersecurity, Malware Protection, Cyber Attacks, Network Security, Information Systems Security, Intrusion Detection and Prevention, Security Testing, Penetration Testing, Firewall, Threat Detection, Internet Of Things, Exploitation techniques, Network Analysis
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Software, Linux, Embedded Systems, Debugging, Operating Systems, Peripheral Devices, Build Tools, File Systems, Shell Script, C (Programming Language), Development Environment, Command-Line Interface
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Risk Analysis, Risk Management, Cybersecurity, Network Security, Incident Response, Cloud Security, Risk Management Framework, Authentications, Business Continuity Planning, Application Security, IT Management, Security Management, Threat Modeling, Threat Management, OSI Models, Disaster Recovery, Cryptography, Encryption, Cyber Risk, Vulnerability Assessments
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Public Key Infrastructure, Cloud Security, Hardening, Infrastructure Security, Application Security, Information Systems Security, Network Security, Cyber Security Assessment, System Configuration, Cryptography, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Cryptography, Encryption, Data Security, Cybersecurity, Application Security, Key Management, Network Security, Public Key Infrastructure, Data Encryption Standard, Security Engineering, Blockchain, Wireless Networks, Security Management, Virtual Private Networks (VPN), Intellectual Property, Data Integrity, Authentications, Hardware Architecture, Emerging Technologies
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Blockchain, Threat Modeling, Application Security, Computer Security, Security Controls, Cybersecurity, Security Engineering, Data Security, Network Security, Information Systems Security, Cryptography, Vulnerability Assessments, Secure Coding, Cryptographic Protocols, Encryption, Key Management, Risk Management, Public Key Cryptography Standards (PKCS), Data Integrity, Distributed Computing
Intermediate · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Cloud Security, Identity and Access Management, AWS Identity and Access Management (IAM), Incident Response, Cloud Computing, Cloud Computing Architecture, Data Security, Application Security, Network Security, Encryption, Role-Based Access Control (RBAC), Amazon Web Services, Key Management, Infrastructure Security, Security Controls, Firewall, Continuous Monitoring, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months