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.

SkillUp
Skills you'll gain: Responsible AI, Data Ethics, AI Security, Business Ethics, Personally Identifiable Information, Artificial Intelligence, Ethical Standards And Conduct, Human Resource Policies, Data Security, Information Privacy, Data Governance, Productivity Software, Accountability, Risk Control, Risk Analysis, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Network Troubleshooting, TCP/IP, Routing Protocols, Network Routing, Open Shortest Path First (OSPF), Network Administration, General Networking, System Configuration, Network Protocols, Linux Commands
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Networking Hardware, General Networking, Network Infrastructure, Local Area Networks, OSI Models, Network Protocols, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), TCP/IP, Network Architecture, Computer Networking, Network Model, Wireless Networks, Network Security, Network Switches, Virtual Local Area Network (VLAN)
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: API Gateway, Authentications, Application Programming Interface (API), OAuth, API Design, Cloud API, Authorization (Computing), Secure Coding, API Testing, Restful API, Threat Modeling, Application Security, Data Security, Distributed Denial-Of-Service (DDoS) Attacks, Identity and Access Management, Encryption, Prometheus (Software), Flask (Web Framework), Grafana, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Key Management, Encryption, Amazon CloudWatch, Amazon Web Services, AWS Identity and Access Management (IAM), Cloud Security, Event Monitoring, Continuous Monitoring, Security Information and Event Management (SIEM), Data Security, Advanced Encryption Standard (AES), System Monitoring, Amazon S3, Incident Response
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management Framework, Risk Analysis, Risk Management, Incident Response, Business Continuity Planning, Security Management, Threat Modeling, Computer Security Incident Management, Threat Management, Business Risk Management, Disaster Recovery, Governance Risk Management and Compliance, Operational Risk, Investigation, Cyber Threat Intelligence, Continuous Monitoring, Cybersecurity, Vulnerability Management, Digital Forensics, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

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

Google Cloud
Skills you'll gain: Kubernetes, Docker (Software), Application Deployment, Cloud Deployment, Google App Engine, Google Cloud Platform, Distributed Computing, API Testing, Performance Testing, DevOps, Restful API, Web Development
Intermediate · Project · Less Than 2 Hours

Fred Hutchinson Cancer Center
Skills you'll gain: Data Ethics, Data Sharing, Personally Identifiable Information, Clinical Research Ethics, Medical Privacy, Data Management, Institutional Review Board (IRB), Healthcare Ethics, Clinical Research, Data Security, Data Governance, Information Privacy, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Health Information Management, Informed Consent
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: SQL, Business Intelligence, Jupyter, Python Programming
Advanced · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Security Information and Event Management (SIEM), Intrusion Detection and Prevention, Threat Detection, Anomaly Detection, AI Security, Scripting, Cyber Operations, Event Monitoring, Network Analysis, Automation, Data Preprocessing, Machine Learning Algorithms
Beginner · Course · 1 - 4 Weeks