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: Kubernetes, Role-Based Access Control (RBAC), Scalability, Network Security, System Monitoring, Network Monitoring, Continuous Monitoring, Capacity Management, Application Performance Management, Performance Tuning
Advanced · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Interoperability, Network Architecture, Systems Architecture, Data Architecture, Solution Architecture, Information Technology Architecture, Enterprise Architecture, Authentications, Cryptography, Identity and Access Management, Emerging Technologies, Encryption, Threat Modeling, Enterprise Security, Scalability, Security Testing, Requirements Analysis, Prototyping
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Code Review, Version Control, GitHub, Package and Software Management, CI/CD, Continuous Integration, Open Source Technology, Development Environment, Continuous Deployment, Secure Coding, Software Development Tools, Docker (Software), Containerization, Scientific Methods, Bioinformatics, Data Sharing, Git (Version Control System), Automation, Software Documentation, Technical Documentation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Responsible AI, Generative AI, Information Systems Security Assessment Framework (ISSAF), Data Ethics, Information Privacy, Regulatory Compliance, Compliance Management, Risk Analysis, Data Governance, Risk Mitigation, Prompt Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Centers, Ansible, Open Shortest Path First (OSPF), Network Switches, Computing Platforms, Virtual Networking, Virtual Local Area Network (VLAN), Network Infrastructure, Network Engineering, Border Gateway Protocol, Infrastructure Security, Network Monitoring, Data Storage Technologies, Automation, Event Monitoring, Configuration Management
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Data Governance, AI Security, Public Policies, Public Cloud, Data Ethics, Technology Strategies, Predictive Analytics
Beginner · Course · 1 - 3 Months

Skills you'll gain: Git (Version Control System), Version Control, GitHub, Bitbucket, GitLab, Software Development Tools, Software Installation, Software Configuration Management, Development Environment, Ubuntu, Command-Line Interface, Linux
Beginner · Course · 3 - 6 Months

Skills you'll gain: Mac OS, Data Management, File Management, Unix Commands, Unix, Application Performance Management, Data Storage, Application Deployment, Data Security, Application Security, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Hosting, Blockchain, Virtual Machines, Software Installation, Google Cloud Platform, Key Management, User Accounts, Development Environment, Network Security
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Cloud Security, Intrusion Detection and Prevention, Email Security, Incident Response, Application Security, Computer Security Incident Management, Cyber Attacks, Infrastructure Security, Cyber Threat Intelligence, Threat Detection, Web Applications, Malware Protection, Network Security, Threat Management, Security Information and Event Management (SIEM), Network Monitoring, Data Security, Digital Forensics
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Model Evaluation, Intrusion Detection and Prevention, Threat Detection, Computer Security Incident Management, Cybersecurity, Anomaly Detection, Applied Machine Learning, Network Security, Machine Learning, Unsupervised Learning, Supervised Learning, Artificial Neural Networks
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Data Persistence, Event-Driven Programming, HTML and CSS, Web Applications, Front-End Web Development, Semantic Web, Javascript, Web Content Accessibility Guidelines, Data Storage Technologies, Application Security, User Interface (UI), Data Validation
Beginner · Course · 1 - 3 Months