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.

Board Infinity
Skills you'll gain: NSX-T Network Virtualization, vSphere Networking and Storage, Virtual Networking, Software-Defined Data Center (SDDC), VMware vSAN, vSphere DRS & HA, Hybrid Cloud Computing, Software-Defined Networking, Zero Trust Network Access, Virtualization, Storage vMotion, Data Centers, vCenter Server, VMware ESX Servers, Role-Based Access Control (RBAC), Virtual Local Area Network (VLAN), Virtualization and Virtual Machines, Virtual Machines, Cloud Management, Network Switches
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Security Information and Event Management (SIEM), Threat Detection, Microsoft Azure, Anomaly Detection, Cyber Threat Intelligence, Security Management, Cloud Management, Application Deployment, Role-Based Access Control (RBAC), Incident Response, Identity and Access Management, Automation, Query Languages
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Docker (Software), Web Applications, Containerization, Virtual Networking, CI/CD, YAML, Service Management, Capacity Management, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: LLM Application, Model Deployment, Real Time Data, Large Language Modeling, Application Deployment, System Monitoring, Cross Platform Development, Application Programming Interface (API), Machine Learning
Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Terraform, Data Validation, Infrastructure as Code (IaC), Acceptance Testing, Google Cloud Platform, Security Controls
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Google App Engine, Application Deployment, Zero Trust Network Access, Cloud Security, Google Cloud Platform, Cloud Applications, Identity and Access Management, Cloud Computing, Network Security
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Electronic Components, C and C++, C++ (Programming Language), Embedded Software, Hardware Troubleshooting, Program Development, Maintainability, Debugging, Development Environment
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Authentications, Application Frameworks, Web Applications, Web Development, Test Script Development, Maintainability, Network Routing, Test Case, Unit Testing, Authorization (Computing), Identity and Access Management, Functional Testing, Integration Testing, Application Security, Configuration Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Cloud Computing, Cloud Infrastructure, Virtualization, Virtual Machines, Cloud Storage, Cloud Computing Architecture, Infrastructure As A Service (IaaS), Cloud Security, Amazon Web Services, Containerization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, Systems Development, Software Development Methodologies, Change Management, Project Management, System Implementation, Compliance Auditing, Software Testing, Auditing, Development Testing, Information Technology, Verification And Validation, Project Management Office (PMO), Internal Controls, Governance, Agile Methodology, Software Development, Data Integrity, Risk Management
Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Amazon Bedrock, Agentic Workflows, Serverless Computing, Responsible AI, Generative AI Agents, AI Security, Prompt Engineering, Cloud Deployment, Help Desk Support, Product Support, Customer Relationship Management (CRM) Software, Customer Relationship Management
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Computer Hardware, Hardware Architecture, Peripheral Devices, Networking Hardware, USB, Desktop Support, Computer Networking, Computer Architecture, Data Storage Technologies, Electrical Safety
Intermediate · Course · 1 - 4 Weeks