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.

University of Illinois Urbana-Champaign
Skills you'll gain: Internet Of Things, Network Infrastructure, Network Routers, General Networking, Embedded Software, Network Switches, Network Protocols, Network Architecture, Wireless Networks, Local Area Networks, Infrastructure Security, Wide Area Networks, Virtual Local Area Network (VLAN), Data Science, Telecommunications, Embedded Systems, Communication Systems, Distributed Computing, Python Programming, Machine Learning
Intermediate · Specialization · 3 - 6 Months

Multiple educators
Skills you'll gain: Apache Airflow, Data Modeling, Data Pipelines, Data Storage, Data Architecture, Requirements Analysis, Data Processing, Data Warehousing, Query Languages, Apache Hadoop, Extract, Transform, Load, Data Lakes, Amazon Web Services, File Systems, Apache Spark, Database Systems, Feature Engineering, Data Integration, AWS Kinesis, Data Management
Intermediate · Professional Certificate · 3 - 6 Months

MedCerts
Skills you'll gain: Information Management, Care Coordination, Health Care Administration, Data Ethics, Healthcare Ethics, Medical Coding, Data Storage, Interoperability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Continuous Monitoring, Medical Privacy, Personally Identifiable Information, Risk Management, Health Information Management, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Regulatory Compliance, Data Management, Information Privacy, Health Care Procedure and Regulation, Risk Mitigation, Healthcare Industry Knowledge, Security Management, Risk Analysis, Health Care, Patient Safety, Security Awareness, Data Security, Cybersecurity, Information Systems Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Intrusion Detection and Prevention, Computer Security Incident Management, Cyber Threat Hunting, Cyber Attacks, Cybersecurity, Cyber Operations, Continuous Monitoring, Event Monitoring, Disaster Recovery, Incident Management, Security Information and Event Management (SIEM), Threat Detection, Cloud Security, Security Controls, Threat Management, System Monitoring, IT Automation, Record Keeping, Problem Management
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Database Design, LLM Application, Software Documentation, Software Design Patterns, Databases, Test Automation, Collaborative Software, Software Testing, Application Design, Technical Documentation, Generative AI, Database Management, Software Design, Code Review, Software Architecture, Software Engineering, Software Development, Machine Learning
Beginner · Professional Certificate · 1 - 3 Months

Skills you'll gain: Penetration Testing, Cloud Security, Network Analysis, General Data Protection Regulation (GDPR), Information Privacy, Wireless Networks, Application Programming Interface (API), Security Controls
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: User Requirements Documents, Technology Strategies, Technology Solutions, Requirements Analysis, Agile Product Development, Agile Methodology, Business Requirements, Decision Making, Cross-Functional Team Leadership, Request for Proposal, Vendor Management, Team Management, Proposal Development, Product Demonstration, Return On Investment, Leadership, Procurement
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Application Lifecycle Management, Azure DevOps, CI/CD, DevSecOps, Continuous Delivery, GitLab, Continuous Integration, DevOps, Data Validation, Data Quality, Test Automation, Workflow Management, Extract, Transform, Load, Test Case, Enterprise Architecture, Governance, Data Pipelines, Scalability, SQL
Advanced · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Enterprise Resource Planning, Business Systems Analysis, Systems Analysis, Requirements Analysis, Cybersecurity, Business Requirements, Business Systems, Cloud Computing, IT Management, Supply Chain Systems, Change Management, Business Technologies, Information Technology, Organizational Change, Technology Strategies, System Implementation, User Requirements Documents, Technology Solutions, Project Management, Critical Thinking
Beginner · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Blockchain, Digital Assets, Portfolio Management, Cryptography, Investments, Market Dynamics, Financial Market, Transaction Processing, Financial Regulation, Business Economics, Production Process
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Service Management, Information Technology Infrastructure Library, Customer experience improvement, IT Service Management, Service Improvement, Change Control, IT Management, Information Technology Architecture, Technical Management, Security Management, Enterprise Architecture, Continuous Improvement Process, Service Design, Agile Methodology, Governance, Risk Management Framework, Quality Improvement, Organizational Structure, IT Infrastructure, Strategic Partnership
Beginner · Specialization · 3 - 6 Months