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: Microsoft Azure, Identity and Access Management, Network Security, Cloud Security, Security Management, Authorization (Computing), Data Access, Security Information and Event Management (SIEM), Firewall, Role-Based Access Control (RBAC), Continuous Monitoring, Key Management, Threat Detection, IT Automation, Incident Management
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Key Management, Public Key Infrastructure, Cryptography, Application Security, Security Engineering, Secure Coding, Data Security, Threat Modeling, Security Testing, Solution Design, Vulnerability Assessments, Code Review
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Information Privacy, Responsible AI, Personally Identifiable Information, Data Security, Data Ethics, General Data Protection Regulation (GDPR), Data Governance, Data Management, Law, Regulation, and Compliance, Incident Response, Cyber Security Policies, Compliance Management, Cyber Security Strategy, Artificial Intelligence, Governance, Data Science, Cybersecurity, Risk Analysis, Cyber Operations, Algorithms
Beginner · Course · 1 - 3 Months

Skills you'll gain: Hardware Troubleshooting, Computer Security Awareness Training, Information Systems Security, Malware Protection, Data Security, Technical Support and Services, Encryption, Security Awareness, Authentications, Patch Management, Technical Support, Firewall, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Large Language Modeling, IT Security Architecture, Data Ethics, Threat Modeling, Vulnerability Assessments, Security Engineering, Threat Detection, Cybersecurity, Information Systems Security, Cyber Security Strategy, Security Strategy, Security Management, Artificial Intelligence, Cyber Attacks, Cloud Security, Security Awareness, Enterprise Security, Distributed Denial-Of-Service (DDoS) Attacks, Incident Response
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, TCP/IP, Cybersecurity, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Technical Support and Services, Encryption, Command-Line Interface, Authentications, Wireless Networks
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Malware Protection, Computer Security Awareness Training, Cybersecurity, Security Awareness, Data Security, Network Security, Human Factors (Security), Personally Identifiable Information, Email Security, Wireless Networks, User Accounts
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Vulnerability Assessments
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Puppet (Configuration Management Tool), Software-Defined Networking, Network Administration, Security Awareness, Threat Modeling, Chef (Configuration Management Tool), Information Systems Security, Virtual Private Networks (VPN), JSON, Authentications, Computer Networking, Network Architecture, Authorization (Computing), Automation, Configuration Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Secure Coding, Database Management, Relational Databases, Query Languages, Security Controls, Data Access, Data Security, Role-Based Access Control (RBAC), Threat Detection
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Embedded Software, C (Programming Language), Linux, Embedded Systems, Build Tools, Command-Line Interface, Operating Systems, Program Development, Software Installation, Application Development, File Systems, Computer Programming, Debugging
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Google Cloud Platform, Cloud Computing, Cloud Security, Generative AI, Vulnerability Assessments, Security Controls, Vulnerability Management, Security Engineering, Threat Detection
Beginner · Course · 1 - 4 Weeks