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.

Skills you'll gain: Secure Coding, Application Security, Authorization (Computing), Authentications, Data Validation, Role-Based Access Control (RBAC), Verification And Validation, Security Controls, User Accounts, Configuration Management, Package and Software Management, Cybersecurity, Data Loss Prevention, Identity and Access Management, Code Review, Software Installation, Middleware, Debugging, Computer Programming, Information Technology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Google Workspace, Gmail, Lightweight Directory Access Protocols, Authorization (Computing), Active Directory, System Monitoring, User Accounts, Email Security, Network Monitoring, Data Governance, Cloud Security, Endpoint Security, Continuous Monitoring, Mobile Security, Compliance Auditing, Data Security, Configuration Management, Incident Management, Application Deployment, Annual Reports
Intermediate · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Ethics, Interactive Learning, Big Data, Cybersecurity, Student Engagement, Pedagogy, Blockchain, Algorithms, Data Security, Teaching, Cryptography, Education and Training, Technical Communication, Education Software and Technology, Diversity Awareness, Digital Transformation, Diversity Equity and Inclusion Initiatives, Computer Science, Information Technology, Computational Thinking
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cloud Security, Intrusion Detection and Prevention, Email Security, Incident Response, Application Security, Cloud Computing, Computer Security Incident Management, Cyber Attacks, Cyber Threat Intelligence, Threat Detection, Web Applications, Malware Protection, Network Security, Threat Management, Network Monitoring
Intermediate · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Model Based Systems Engineering, Systems Engineering, Systems Architecture, Functional Design, System Design and Implementation, Requirements Analysis, Requirements Elicitation, Verification And Validation
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Software Testing, Testability, Test Case, Behavior-Driven Development, Code Coverage, Acceptance Testing, Unit Testing, Functional Testing, Test Automation, JUnit, Requirements Analysis, Java Programming
Intermediate · Course · 1 - 4 Weeks

Banco Interamericano de Desarrollo
Skills you'll gain: Cybersecurity, Data Management, Interoperability, Digital Transformation, Data Security, Public Administration, Governance, Case Studies, Identity and Access Management, Service Design, Policy Analysis, Innovation, Strategic Planning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Malware Protection, Data Security, Intrusion Detection and Prevention, Network Security, Cyber Attacks, Event Monitoring, Threat Detection, Cyber Threat Intelligence, Operating System Administration, Computer Security Awareness Training, Network Monitoring, Network Analysis, Operating Systems, Data Integrity, Microsoft Windows, Mac OS, File Systems, Linux, Email Security
Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Network Administration, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Network Performance Management, Firewall, Proxy Servers, Encryption, Authentications
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Lending and Underwriting, Blockchain, Commercial Lending, Derivatives, FinTech, Market Liquidity, Financial Trading, Securities (Finance), Digital Assets, Market Data, Transaction Processing, Asset Management, Portfolio Management, Risk Management
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Data Ethics, Responsible AI, Emerging Technologies, Business Ethics, Big Data, Information Privacy, Personally Identifiable Information, Diversity Awareness, Data Security, Artificial Intelligence
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Business Risk Management, Risk Management, Cyber Governance, Penetration Testing, Personally Identifiable Information, Information Privacy, Vendor Management, Governance Risk Management and Compliance, Security Management, Cyber Risk, Vulnerability Assessments, Cyber Security Policies, Security Strategy, Compliance Management, Cybersecurity, Regulatory Requirements, Security Controls, Security Awareness
Intermediate · Course · 1 - 4 Weeks