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.

The State University of New York
Skills you'll gain: Cyber Threat Intelligence, Cyber Security Policies, Cybersecurity, International Relations, Cyber Operations, Cyber Attacks, Cyber Governance, Network Infrastructure, Diplomacy, General Networking, Conflict Management, Law, Regulation, and Compliance, Security Management, Human Factors (Security), Political Sciences, Media and Communications, Social Studies, Psychology
Mixed · Course · 1 - 3 Months

Skills you'll gain: OSI Models, Communication Systems, Cloud Computing Architecture, Network Protocols, Telecommunications, Internet Of Things, Cloud Deployment, TCP/IP, Cloud Computing, General Networking, Electric Power Systems, Energy and Utilities, Cloud Management, Network Infrastructure, Interoperability, Wireless Networks, Electrical Power, Cyber Engineering, Electrical Systems, Threat Modeling
Intermediate · Course · 1 - 4 Weeks
SAS
Skills you'll gain: SAS (Software), Data Manipulation, Statistical Reporting, Data Import/Export, Requirements Analysis, Data Transformation, Data Validation, Analysis, Data Access, Statistical Programming, Statistical Analysis, Data Analysis, Data Cleansing, Exploratory Data Analysis, Data Wrangling, Data Analysis Software, Microsoft Excel, Data Processing, Data Preprocessing, Data Integration
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Yonsei University
Skills you'll gain: TCP/IP, Routing Protocols, Network Protocols, Open Shortest Path First (OSPF), Network Routing, Cybersecurity, Network Monitoring, Network Security, Cyber Attacks, Network Performance Management, Intrusion Detection and Prevention, Network Routers, Network Infrastructure, File Transfer Protocol (FTP), Dynamic Host Configuration Protocol (DHCP), Network Architecture, System Configuration, Network Analysis
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Operations, Information Privacy, General Data Protection Regulation (GDPR), Customer Data Management, Personally Identifiable Information, Law, Regulation, and Compliance, Customer Communications Management, Data Management, Compliance Management, Data Security, Data Mapping, Email Marketing, Risk Analysis, Record Keeping, Document Management, Auditing, Data Integrity, Data Strategy, Data Access, Data Flow Diagrams (DFDs)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Journey Mapping, Business Transformation, SAP S/4HANA, Technology Solutions, Technical Documentation, Relationship Building, Software As A Service, Consultative Approaches, Enterprise Architecture, ABAP RESTful Programming Model (RAP), Solution Architecture, Enterprise Resource Planning, System Design and Implementation, Project Implementation, Project Closure, Test Planning, Requirements Analysis, Stakeholder Communications, Project Management, Workforce Development
Beginner · Professional Certificate · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: FinTech, Governance Risk Management and Compliance, Regulatory Compliance, Financial Regulation, Business Continuity Planning, Compliance Management, Disaster Recovery, Risk Management Framework, Financial Regulations, Financial Controls, Operational Risk, Bank Regulations, Business Continuity, Security Management, Financial Services, Market Trend, Financial Systems, Workforce Development, Banking, Blockchain
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Gateway, OAuth, Restful API, API Design, Application Programming Interface (API), Cloud API, Application Deployment, Application Security, Continuous Deployment, AI Integrations, Cloud Deployment, LLM Application, Authentications, Data Loss Prevention, Web Services, AI Security, Data Security, Google Cloud Platform, CI/CD, AI Workflows
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Linux Commands, Metasploit, Open Web Application Security Project (OWASP), Linux, Penetration Testing, Exploit development, Vulnerability Scanning, Command-Line Interface, Exploitation techniques, Security Testing, Linux Administration, Scripting, Vulnerability Assessments, Hardening, Brute-force attacks, General Networking, Scripting Languages, Shell Script, Cybersecurity, Network Security
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Docker (Software), Microservices, CI/CD, DevOps, Containerization, Devops Tools, Application Deployment, Continuous Deployment, Release Management, Continuous Delivery, Continuous Integration, Private Cloud, DevSecOps, Package and Software Management, Metadata Management, Software Versioning, Linux, Application Lifecycle Management, Automation, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cucumber (Software), Software Testing, Selenium (Software), Gherkin (Scripting Language), JUnit, Verification And Validation, Test Automation, Unit Testing, Security Testing, Regression Testing, Test Case, Software Development Tools, Testability, White-Box Testing, Behavior-Driven Development, Code Coverage, Performance Testing, Development Testing, Test Engineering
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Security Architecture Review, IT Security Architecture, Public Key Infrastructure, Network Security, Hardening, Security Controls, Continuous Monitoring, Vulnerability Assessments, Disaster Recovery, Cryptographic Protocols, System Configuration, Banking Services, Banking, Authentications, Retail Banking, Commercial Banking, Network Analysis, Financial Analysis, Financial Accounting, Accounting and Finance Software
Intermediate · Course · 1 - 4 Weeks