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.

Google Cloud
Skills you'll gain: Network Routing, Network Security, TCP/IP, Firewall, Routing Protocols, Google Cloud Platform, Virtual Networking, Network Administration, Virtual Private Networks (VPN), Network Infrastructure, Cloud Services
★ 4.8 (1.1K) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Generative AI, Agentic Workflows, AI Workflows, Generative AI Agents, AI Orchestration, Retrieval-Augmented Generation, Generative Model Architectures, Microsoft Azure, Agentic systems, Artificial Intelligence and Machine Learning (AI/ML), AI Security, LLM Application, Application Deployment, Responsible AI, ChatGPT, Artificial Intelligence, Artificial Neural Networks, Deep Learning, Machine Learning
★ 3.7 (54) · Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Dataflow, Data Pipelines, Serverless Computing, Identity and Access Management, Google Cloud Platform, Site Reliability Engineering, Cloud Security, Data Integrity, Performance Tuning, Data Security, CI/CD, Data Processing, Debugging, Real Time Data, System Monitoring, Cloud Storage, Pandas (Python Package), Unit Testing, Containerization, File I/O
★ 4 (132) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Management, Data Presentation, Data Storytelling, Data Collection, Data Governance, Data Analysis, Information Privacy, Data Quality, Data Storage, Data Storage Technologies, Data Security, Exploratory Data Analysis, Data-Driven Decision-Making, Data Architecture, Data Visualization Software, Big Data, Applied Machine Learning, Machine Learning Methods, Machine Learning
★ 4.8 (130) · Beginner · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Data Literacy, Data-Driven Decision-Making, Cloud Solutions, Cloud Security, Infrastructure as Code (IaC), Team Oriented, Virtual Machines, Exploratory Data Analysis, Information Management, Hybrid Cloud Computing, Data Management, Data Visualization Software, Process Design, System Monitoring, Enterprise Security, Data Processing, Data Manipulation, Statistical Software, Data Import/Export, Computer Programming
★ 4.5 (123) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Network Security, Cybersecurity, Exploitation techniques, Penetration Testing, Cyber Attacks, Python Programming, Data Access, Authentications, Scripting, Remote Access Systems, User Accounts
★ 4.8 (69) · Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Computing Architecture, Cloud Infrastructure, Cloud Solutions, Cloud Security, Cloud Computing, Solution Architecture, Google Cloud Platform, Cloud Management, Process Optimization, Cloud Platforms, Solution Delivery, Process Improvement and Optimization, System Implementation, Process Analysis, Business Solutions, Cloud Deployment, Solution Design
★ 4.7 (1.4K) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Postman API Platform, OAuth, Application Programming Interface (API), Performance Testing, Security Testing, Software Testing, Test Tools, Authentications, Scenario Testing
★ 4.3 (75) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Public Key Infrastructure, Key Management, Cryptography, Cryptographic Protocols, Encryption, Authentications, Algorithms
★ 4.7 (284) · Intermediate · Course · 1 - 4 Weeks
Amazon Web Services
Skills you'll gain: Amazon CloudWatch, Containerization, Microservices, Cloud-Native Computing, Docker (Software), Amazon Web Services, Kubernetes, Application Deployment, Serverless Computing, Cloud Deployment, System Monitoring, Scalability
★ 4.6 (179) · Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Test Planning, Embedded Software, Embedded Systems, User Requirements Documents, Functional Specification, Functional Requirement, Systems Design, Requirements Analysis, Test Case, System Requirements, System Design and Implementation, Development Testing, System Testing, Prototyping, Program Development, Software Documentation, Hardware Architecture, Python Programming
★ 4.7 (957) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Systems Development Life Cycle, Software Quality Assurance, White-Box Testing, API Testing, Test Script Development, AI Security, Software Quality (SQA/SQC), Performance Stress Testing, Software Development Methodologies, Regression Testing, User Acceptance Testing (UAT), AI Integrations, Maintainability, Code Review, Scalability, Automation, Code Coverage, Security Testing
★ 4.1 (47) · Beginner · Specialization · 3 - 6 Months