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 Colorado System
Skills you'll gain: Requirements Elicitation, Software Design Documents, Requirements Analysis, Security Requirements Analysis, Mockups, Interviewing Skills, User Requirements Documents, Storyboarding, Functional Requirement, Goal Setting, Software Development Methodologies, Software Documentation, Agile Methodology, Business Requirements, Unified Modeling Language, Risk Management Framework, System Requirements, Meeting Facilitation, Prototyping, Software Development Life Cycle
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Spreadsheet Software, Business Reporting, Data Visualization, Excel Macros, Dashboard, Forecasting, Data Analysis, Data Visualization Software, Predictive Modeling, Data Validation, Productivity Software, Data Entry, Data Management, Financial Modeling, Data Security, Data Integrity, Computer Literacy
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Google Workspace, Generative AI, Google Cloud Platform, Productivity Software, Prompt Engineering, LLM Application, Enterprise Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Data Ethics, Artificial Intelligence, Business Ethics, Risk Analysis, SAS (Software), Compliance Training, Data Integrity, Human Centered Design, Accountability, Analytics, Diversity and Inclusion, Information Privacy, Data Governance
Beginner · Course · 1 - 4 Weeks

The Linux Foundation
Skills you'll gain: Open Source Technology, GitHub, CI/CD, Git (Version Control System), Collaborative Software, Software Development Methodologies, Software Development Life Cycle, Technical Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Virtual Machines, Cloud Development, Infrastructure As A Service (IaaS), Ubuntu, Application Deployment, Linux, Web Applications, Node.JS, MongoDB
Intermediate · Course · 1 - 3 Months

KodeKloud
Skills you'll gain: Jenkins, Terraform, Infrastructure as Code (IaC), Linux Administration, Kubernetes, Docker (Software), CI/CD, Version Control, Ansible, Continuous Integration, Microservices, Devops Tools, GitHub, Containerization, Operating System Administration, Git (Version Control System), General Networking, Systems Administration, DevOps, Python Programming
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Istio, Kubernetes, Cloud-Native Computing, Containerization, OpenShift, Docker (Software), CI/CD, DevOps, Application Deployment, Command-Line Interface, Scalability, Microservices, YAML
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Exploit development, Penetration Testing, Intrusion Detection and Prevention, Vulnerability Assessments, Wireless Networks, Encryption, Secure Coding, Application Security, Threat Modeling, Web Applications, Cloud Security, Internet Of Things
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Infrastructure Security, Cyber Risk, Cyber Security Policies, Cyber Security Assessment, Cybersecurity, Cyber Security Strategy, Risk Management Framework, Technology Roadmaps, Network Infrastructure, Transportation Operations, Infrastructure Architecture, Mobile Security
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Threat Modeling, IT Security Architecture, Threat Detection, Internet Of Things, Network Security, Information Systems Security, Infrastructure Security, Security Controls, Data Security, Vulnerability Assessments, Risk Management Framework, Cryptography, Encryption, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: File Systems, Operating Systems, System Software, OS Process Management, Real-Time Operating Systems, Computer Systems, Data Storage, Unix, Computer Science, Linux, Microsoft Windows, Virtualization, Algorithms
Intermediate · Course · 3 - 6 Months