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.

University of California San Diego
Skills you'll gain: Climate Change Mitigation, Energy and Utilities, Social Justice, Social Impact, Community Organizing, Climate Change Adaptation, Environmental Issue, Social Determinants Of Health, International Relations, Sustainable Development, Health Disparities, Pollution Prevention, Social Sciences, Sustainable Technologies, Consumer Behaviour, Environment, Environmental Policy, Media and Communications, Environmental Engineering, Natural Resource Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Mac OS, Microsoft Windows, Operating System Administration, Desktop Support, System Support, End User Training and Support, System Configuration, Computer Displays, Software Installation, Android (Operating System), Apple iOS, Mobile Security, Patch Management, System Monitoring, Application Performance Management, OS Process Management, Browser Compatibility, Collaborative Software, Data Maintenance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, IT Automation, Automation, Linux Servers, Infrastructure as Code (IaC), Windows Servers, Command-Line Interface, YAML, Configuration Management
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Virtualization, Virtual Machines, Virtual Networking, Hyper-V, VMware ESX Servers, Cloud Infrastructure, Data Storage Technologies, Networking Hardware, IT Infrastructure, Data Centers, Desktop Support, Endpoint Security, Computer Hardware
Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Generative AI, AI Product Strategy, AI Enablement, Data Ethics, Responsible AI, Regulation and Legal Compliance, Change Management, Market Dynamics, Market Intelligence, Advanced Analytics, Market Research, Revenue Management, Artificial Intelligence, Data-Driven Decision-Making, Data Governance, Ethical Standards And Conduct, Data Quality, Market Trend
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Services, Restful API, Apache Maven, Spring Boot, Spring Framework, Gradle, Simple Object Access Protocol (SOAP), Java Platform Enterprise Edition (J2EE), Java, API Design, Application Frameworks, Secure Coding, Object-Relational Mapping, Data Persistence, JSON, Extensible Markup Language (XML)
Intermediate · Course · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Federated Learning, Transfer Learning, AI Security, Large Language Modeling, PyTorch (Machine Learning Library), Information Privacy, Distributed Computing, Machine Learning
Beginner · Project · Less Than 2 Hours

Birla Institute of Technology & Science, Pilani
Skills you'll gain: TCP/IP, Network Protocols, Network Infrastructure, Network Security, OSI Models, Network Architecture, Routing Protocols, Wireless Networks, Computer Networking, Network Routing, Network Performance Management, Application Security, Network Model, Software-Defined Networking, Computer Security Awareness Training
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Unit Testing, Software Testing, Test Case, .NET Framework, CI/CD, Test Script Development, Test Driven Development (TDD), Testability, Test Data, Test Automation, Microsoft Visual Studio
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Disaster Recovery, SAP Applications, Azure Active Directory, Cloud Infrastructure, Cloud Management, System Monitoring, Application Deployment, Virtual Machines, Virtual Networking, IT Infrastructure, Cloud Storage, Data Migration, Performance Testing
Intermediate · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Digital Forensics, Electronic Discovery, Investigation, Criminal Investigation and Forensics, Incident Response, Cyber Threat Intelligence, Technical Communication, Computer Security Incident Management, Report Writing, Cybersecurity, Cyber Security Policies, Fraud detection, Legal Proceedings, Law, Regulation, and Compliance, Ethical Standards And Conduct, Business Ethics, Compliance Reporting, Data Collection, Analysis, Management Reporting
Beginner · Course · 1 - 3 Months

Skills you'll gain: JUnit, Apache Maven, Model View Controller, Unit Testing, Spring Boot, Restful API, Data Persistence, Software Testing, Java, Back-End Web Development, Front-End Web Development, Authentications, Data Modeling, Business Logic
Mixed · Course · 1 - 4 Weeks