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.

Infosec
Skills you'll gain: Incident Response, Computer Security Incident Management, Threat Management, Cyber Operations, Cybersecurity, Cyber Threat Hunting, Threat Detection, Event Monitoring, Business Continuity, System Monitoring, Verification And Validation, Technical Communication
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Data Structures, Spring Boot, Restful API, Model View Controller, Spring Framework, Web Services, Java Programming, Java, Back-End Web Development, Authentications, Programming Principles, Authorization (Computing), Software Architecture, Algorithms, Object Oriented Programming (OOP)
Advanced · Course · 1 - 4 Weeks
Amazon Web Services
Skills you'll gain: Amazon CloudWatch, Containerization, Microservices, Docker (Software), Amazon Web Services, Kubernetes, Amazon Elastic Compute Cloud, Application Deployment, Serverless Computing, Devops Tools, System Monitoring, YAML, Scalability
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Session Initiation Protocols, Android Studio, Android Development, Internet Of Things, Communication Systems, Network Protocols, Telecommunications, Wireless Networks, Mobile Development, Application Development, Embedded Systems, Open Source Technology
Mixed · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: JUnit, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Java, Unit Testing, Debugging, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Test Case, Application Development, Authentications, Application Security, Android Development, Cryptography, Software Design Patterns
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Governance, Governance Risk Management and Compliance, Enterprise Security, Compliance Management, Regulatory Requirements, Business Metrics, Performance Metric, Ethical Standards And Conduct
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Ethics, Computer Security Awareness Training, Ethical Standards And Conduct, Cybersecurity, Information Technology, Responsible AI, Information Privacy, Media and Communications, Personally Identifiable Information, Artificial Intelligence, Law, Regulation, and Compliance, Data Collection
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Splunk Inc.
Skills you'll gain: Splunk, Data Visualization Software, Dashboard, Ad Hoc Reporting, Business Intelligence, Data Analysis, Email Automation, Data Processing, Big Data, Data Science, Event Monitoring, Query Languages, Analysis, Incident Response, Business Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), C# (Programming Language), Object Oriented Design, Application Development, Data Structures, Linux
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Kubernetes, Cloud-Native Computing, OpenShift, Containerization, Docker (Software), Cloud Applications, Application Deployment, Continuous Deployment, Cloud Platforms, Cloud Computing, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Gemini, Google Workspace, Generative AI, Productivity Software, Prompt Engineering, Google Cloud Platform, Workflow Management, Enterprise Security, Cloud Security, Large Language Modeling
Beginner · Course · 1 - 4 Weeks

Technical University of Munich (TUM)
Skills you'll gain: Cybersecurity, Safety and Security, Infrastructure Security, Medical Science and Research, Threat Management, Physical Science, Environmental Monitoring, Continuous Monitoring, Spatial Analysis, Risk Analysis, Physics
Intermediate · Course · 1 - 3 Months