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.

Google Cloud
Skills you'll gain: Identity and Access Management, User Accounts, Role-Based Access Control (RBAC), Firewall, Nginx, Authorization (Computing), Network Administration, Network Security, Virtual Private Networks (VPN), Servers, Web Servers, Security Controls
Intermediate · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Blockchain, Secure Coding, Application Security, Law, Regulation, and Compliance, Regulation and Legal Compliance, Vulnerability Assessments, Auditing, Program Development, Development Testing, Process Optimization, Debugging, Application Deployment, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Risk Control, Risk Management, Compliance Reporting, Risk Mitigation, Risk Analysis, Business Risk Management, Internal Controls, Continuous Monitoring, Data Management, Key Performance Indicators (KPIs), Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks
University of Glasgow
Skills you'll gain: Data Ethics, Responsible AI, Machine Learning, Deep Learning, Information Privacy, Data Validation, Decision Support Systems, Health Informatics, Predictive Modeling, Verification And Validation, Artificial Intelligence and Machine Learning (AI/ML), Human Centered Design, Data Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Maven, Java, Java Platform Enterprise Edition (J2EE), Object Oriented Design, Hibernate (Java), Unit Testing, Docker (Software), Software Design Patterns, Integrated Development Environments, Object-Relational Mapping, Functional Design, Data Access, System Configuration
Beginner · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Pedagogy, Blockchain, Data Ethics, Teaching, Emerging Technologies, Computer Networking, Internet Of Things, Instructional Strategies, Computer Security Awareness Training, Cybersecurity, Information Privacy, Encryption, Virtual Private Networks (VPN), Distributed Denial-Of-Service (DDoS) Attacks
Beginner · Course · 1 - 3 Months

Skills you'll gain: Docker (Software), Integration Testing, Object-Relational Mapping, Secure Coding, Database Design, Solution Architecture, Enterprise Architecture, Authorization (Computing), Systems Integration, Database Development, Data Validation, Transaction Processing
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Application Programming Interface (API), GraphQL, API Design, Restful API, Postman API Platform, OAuth, Software Documentation, Authentications, Debugging, Real Time Data, Web Development, JavaScript Frameworks, Node.JS, JSON, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Role-Based Access Control (RBAC), Performance Tuning, VMware ESX Servers, Virtual Machines, Disaster Recovery, Virtualization, Data Centers, Network Switches, Virtualization and Virtual Machines, Patch Management, Network Administration, System Monitoring, System Configuration, Data Storage, Infrastructure Security, Identity and Access Management, Data Storage Technologies, Cloud Infrastructure, Cloud Computing, User Accounts
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Disaster Recovery, Data Validation, Business Continuity, Security Controls, Risk Mitigation, Project Management, Risk Management, System Testing, Technical Management, System Implementation, Data Integrity, Software Development Methodologies
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Google Cloud Platform, Kubernetes, Google App Engine, Cloud Storage, Load Balancing, Cloud Services, Cloud Infrastructure, Cloud Computing, Infrastructure As A Service (IaaS), Containerization, Data Storage, Virtual Machines, Performance Tuning, Cloud Security, Application Deployment, Cloud Applications, Cloud Management, DevOps, Scalability
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Continuous Integration, Sprint Planning, Kaizen Methodology, Process Improvement, Backlogs, Agile Product Development, Unit Testing, Scalability, Performance Metric, Integration Testing, Development Testing, Organizational Change, Project Management, User Story, Git (Version Control System), Key Performance Indicators (KPIs), Business Reporting, Application Security, Prioritization, Dependency Analysis
Beginner · Specialization · 1 - 3 Months