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: MITRE ATT&CK Framework, Penetration Testing, Cyber Operations, Scripting, Cybersecurity, Vulnerability Assessments, Python Programming, Network Analysis, Automation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Infrastructure as Code (IaC), AWS CloudFormation, CI/CD, Git (Version Control System), Jenkins, Ansible, Version Control, Terraform, Docker (Software), Kubernetes, DevOps, Prometheus (Software), Cloud-Native Computing, Continuous Deployment, Containerization, Amazon Web Services, Software Development Tools, Grafana, Software Development Life Cycle, Configuration Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cryptography, Encryption, Cloud Security, Cyber Security Assessment, Data Encryption Standard, Cloud Computing, Advanced Encryption Standard (AES), Data Security, Key Management, Public Key Infrastructure
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Web Services, Vulnerability Assessments, Security Testing, Cyber Security Assessment
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Docker (Software), Azure DevOps, Restful API, Microservices, Containerization, DevOps, ASP.NET, CI/CD, .NET Framework, Application Programming Interface (API), API Design, Test Automation, Application Deployment, Git (Version Control System)
Advanced · Course · 1 - 4 Weeks

Sciences Po
Skills you'll gain: Transportation Operations, Social Studies, Demography, Social Sciences, Public Safety and National Security, Community Development, Environmental Issue, Public Policies, Education and Training, Sociology, Cultural Diversity, Culture, Economics
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Cloud Computing Architecture, Cloud Infrastructure, Cloud Security, Cloud Computing, Incident Response, IT Security Architecture, Cloud Management, Cloud Services, Disaster Recovery, Capacity Management, Network Troubleshooting, Virtual Machines, Infrastructure as Code (IaC), Virtualization, Application Security, System Monitoring, Security Controls, Data Migration, Microsoft Azure, Capacity Planning
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Ansible, Red Hat Enterprise Linux, IT Automation, Infrastructure as Code (IaC), YAML, Linux, Linux Administration, Linux Servers, Simulations, Scenario Testing, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Analysis Expressions (DAX), Dashboard, Power BI, Data Visualization, Data Transformation, Data Modeling, Data Import/Export, Data Visualization Software, Data Analysis, Analytics, Data Cleansing, Data Security, Data Management
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Software Design Documents, User Requirements Documents, Functional Requirement, Software Documentation, Unified Modeling Language, Requirements Analysis, System Requirements, Technical Documentation, Technical Writing, Data Modeling, Dataflow
Beginner · Course · 1 - 3 Months

Skills you'll gain: Security Management, Data-Driven Decision-Making
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Authentications, Hardening, Key Management, Data Security, Cloud Security, Security Management, Security Controls, Encryption, Authorization (Computing), Identity and Access Management, Data Management, System Configuration, Servers, Configuration Management, Database Management
Intermediate · Course · 1 - 4 Weeks