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.

LearnQuest
Skills you'll gain: Azure Active Directory, Cloud Infrastructure, Microsoft Azure, Virtual Machines, Infrastructure As A Service (IaaS), Role-Based Access Control (RBAC), Infrastructure Security, Multi-Factor Authentication, Network Infrastructure, Cloud Storage, Virtualization, Identity and Access Management, Cloud Computing, Virtual Private Networks (VPN), Data Migration, Disaster Recovery
Advanced · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Database Design, Software Design, Usability Testing, User Interface and User Experience (UI/UX) Design, Software Architecture, Software Design Patterns, Database Management, Systems Design, Application Security, Design Strategies, Operating Systems
Intermediate · Course · 1 - 3 Months

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

Microsoft
Skills you'll gain: Database Systems, Microsoft Azure, Databases, Relational Databases, MySQL, SQL, Database Management, NoSQL, Cloud Services, PostgreSQL, Data Storage Technologies, Data Security, Data Management
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: C (Programming Language), Embedded Systems, Data Structures, Algorithms, Computer Programming, Linux, Computer Programming Tools, Development Environment, Debugging, Software Development Tools
Beginner · Course · 1 - 3 Months

Skills you'll gain: Operating System Administration, Information Technology Operations, Computer Security Incident Management, Security Controls, Security Management, Technical Support and Services, Information Systems Security, File Management, Encryption
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Dataflow, Google Cloud Platform, Data Pipelines, Serverless Computing, Real Time Data, Cloud Infrastructure, Identity and Access Management, MLOps (Machine Learning Operations), Big Data, AI Personalization, Data Visualization Software, Data Integration, Cloud Security, Data Integrity, Performance Tuning, Looker (Software), Data Security, Tensorflow, Cloud Computing, Data Processing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Amazon Elastic Compute Cloud, Amazon Web Services, Application Deployment, Virtual Machines, Web Applications, Public Cloud, Linux Servers, Apache, Remote Access Systems
Beginner · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Cloud Infrastructure, Network Architecture, Computer Networking, Network Infrastructure, Software-Defined Networking, Cloud Computing, Virtualization, Network Routing, TCP/IP, Wide Area Networks, Data Centers, Network Switches, Virtual Machines, Python Programming
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, Network Engineering, Network Architecture, Scripting, Application Programming Interface (API), Data Modeling, General Networking, Network Planning And Design, Automation, Network Infrastructure, Linux Commands, Python Programming, Network Protocols, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Amazon S3, Amazon Web Services, Identity and Access Management, Disaster Recovery, Amazon CloudWatch, Serverless Computing, CI/CD, Cloud Computing Architecture, Amazon DynamoDB, Solution Architecture, Containerization, Kubernetes, Hybrid Cloud Computing, Cloud Solutions, Cloud Storage, Cloud Security, Cloud Computing, API Gateway
Intermediate · Specialization · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Generative AI Agents, LLM Application, Prompt Patterns, Prompt Engineering, Agentic systems, Tool Calling, Large Language Modeling, Persona (User Experience), Business Logic, Application Programming Interface (API), Transaction Processing, Document Management, Coordinating, Persona Development, Coordination, Plan Execution, Data Sharing
Beginner · Course · 1 - 3 Months