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.

Duke University
Skills you'll gain: Technical Communication, Cloud Infrastructure, CI/CD, Cloud Computing, Agile Software Development, DevOps, Infrastructure As A Service (IaaS), Continuous Delivery, Infrastructure as Code (IaC), Serverless Computing, Software Development, Amazon Web Services, Software Development Methodologies, Platform As A Service (PaaS), GitHub
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Kubernetes, Threat Modeling, Hardening, Security Testing, Verification And Validation, Google Cloud Platform, Security Controls, Vulnerability Assessments, Cloud Computing
Advanced · Project · Less Than 2 Hours

Skills you'll gain: Grafana, System Monitoring, Prometheus (Software), Application Performance Management, DevOps, Continuous Monitoring, Docker (Software), Cloud-Native Computing, Containerization, Kubernetes, Microservices, Debugging, Distributed Computing, Data Management
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Crisis Management, Incident Response, ChatGPT, Computer Security Incident Management, Generative AI, Cross-Functional Collaboration, Incident Management, Prompt Engineering, Threat Modeling, Cybersecurity, Team Performance Management, Scenario Testing, Hardening, Complex Problem Solving, Discussion Facilitation, Artificial Intelligence, Performance Analysis, Coordination
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Application Security, Vulnerability Assessments, Software Design, Threat Modeling, Open Web Application Security Project (OWASP), Secure Coding, Software Design Patterns, Software Architecture, Cryptography, Blockchain, Public Key Cryptography Standards (PKCS)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AWS Identity and Access Management (IAM), Amazon CloudWatch, Threat Detection, Threat Management, Amazon Web Services, Incident Response, Continuous Monitoring, Cloud Security, Identity and Access Management, Amazon Elastic Compute Cloud, Network Security, Event Monitoring
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: C# (Programming Language), Restful API, ASP.NET, Model View Controller, .NET Framework, Docker (Software), Azure DevOps, Object Oriented Programming (OOP), Microservices, Containerization, JSON, Application Programming Interface (API), Application Frameworks, DevOps, Web Services, Middleware, CI/CD, Back-End Web Development, Web Applications, Programming Principles
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Splunk, Data Modeling, Role-Based Access Control (RBAC), System Monitoring, Incident Response, User Accounts, Security Information and Event Management (SIEM), Machine Learning, Event Monitoring, Systems Administration, Performance Tuning, Data Visualization, Threat Detection, Anomaly Detection, Continuous Monitoring, Correlation Analysis, Data Analysis, Authentications, Data Collection, Configuration Management
Advanced · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Linux, Linux Administration, Linux Servers, Linux Commands, Operating System Administration, Systems Administration, Virtualization, Cloud Computing, Display Devices, Cybersecurity
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Security Information and Event Management (SIEM), Security Management, Event Monitoring, Threat Detection, Continuous Monitoring, System Monitoring, Network Security, Google Cloud Platform, Cloud Computing
Beginner · Project · Less Than 2 Hours

University of Michigan
Skills you'll gain: Automation, Sustainable Systems, Sustainable Development, Electric Power Systems, Socioeconomics, Economics, Policy, and Social Studies, Environmental Issue, Emerging Technologies, Disabilities, Transportation Operations, Health Equity, Social Sciences, Diversity Equity and Inclusion Initiatives, Surveys, Climate Change Mitigation, Safety and Security, Artificial Intelligence, Information Privacy
Beginner · Course · 1 - 3 Months

Skills you'll gain: Disaster Recovery, Server Administration, Windows Servers, Servers, Network Troubleshooting, Linux Servers, Virtualization and Virtual Machines, Hardware Troubleshooting, Operating System Administration, Data Storage Technologies, IT Automation, Remote Access Systems, System Monitoring, Networking Hardware, Computer Hardware, Firewall, Data Security, Encryption
Intermediate · Course · 1 - 4 Weeks