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.

Johns Hopkins University
Skills you'll gain: Remote Access Systems, Linux, Web Applications, Internet Of Things, Embedded Systems, Application Programming Interface (API), Command-Line Interface, Application Security, Electronics, Control Systems, System Configuration, Hardware Design, Python Programming, Software Installation, Peripheral Devices
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Databases, Oracle SQL Developer, PL/SQL, Performance Tuning, Database Management, Database Administration, Database Architecture and Administration, Patch Management, Relational Databases, Database Design, Database Management Systems, Stored Procedure, Data Integrity, SQL, Data Import/Export, Data Storage Technologies, Data Storage, Data Management, User Accounts, Disaster Recovery
Beginner · Specialization · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Descriptive Analytics, Analytics, Dashboard, Data Analysis, Exploratory Data Analysis, Amazon Web Services, Data-Driven Decision-Making, Data Visualization, Big Data, Cloud Security, Amazon S3, Cloud Computing
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Business Software, Computer Hardware, Generative AI, Operating Systems, Data Storage Technologies, Computer Systems, Data Maintenance, Enterprise Security, System Software, Information Technology, Computer Architecture, Data Storage, System Configuration, Technical Support and Services, Microsoft Windows, Servers, Cybersecurity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Splunk, Lightweight Directory Access Protocols, System Monitoring, Scripting, Dashboard, Business Intelligence, Scatter Plots, Pivot Tables And Charts, Servers, Data-Driven Decision-Making, Software Installation, Role-Based Access Control (RBAC), Data Pipelines, Authentications, Unstructured Data, Data Visualization Software, Data Visualization, Network Troubleshooting, Data Storage, Data Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Operating System Administration, Network Troubleshooting, Computer Networking, Information Systems Security, Cloud Management, Linux, IT Infrastructure, Cybersecurity, Microsoft Windows, Network Security, Network Protocols, TCP/IP, Application Security, Systems Administration, Remote Access Systems, Desktop Support, Technical Support, Lightweight Directory Access Protocols, Help Desk Support, Software Installation
Beginner · Professional Certificate · 3 - 6 Months

Fractal Analytics
Skills you'll gain: Threat Modeling, LLM Application, Generative AI Agents, Application Security, Software Architecture, Systems Architecture, Security Controls, Security Engineering, Interoperability, Agentic systems, Real Time Data, Artificial Intelligence, Network Protocols, Generative AI
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment, Cybersecurity, Security Testing, Computer Security Incident Management, Incident Response, Security Controls, Network Security, Encryption
Intermediate · Course · 1 - 4 Weeks

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 Boulder
Skills you'll gain: Failure Analysis, Electronic Components, Systems Engineering, Thermal Management, Control Systems, High Voltage, Power Electronics, Electrical Engineering, Energy and Utilities, Basic Electrical Systems, Electrical Safety, Materials science, Manufacturing Processes, Chemistry, Requirements Analysis
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Blockchain, Financial Inclusion, FinTech, Emerging Technologies, Cryptography, Payment Systems, Digital Assets, Stakeholder Analysis, Cryptographic Protocols, Distributed Computing, Public Key Cryptography Standards (PKCS), Information Privacy, Governance, Network Security, Data Integrity, Financial Services, Innovation
Beginner · Course · 1 - 3 Months