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: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, MITRE ATT&CK Framework, Exploitation techniques, Threat Detection, Infrastructure Security, Payment Card Industry (PCI) Data Security Standards, NIST 800-53, Network Analysis, General Data Protection Regulation (GDPR), Information Privacy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Infrastructure
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Information Management, Security Controls, Configuration Management, Security Engineering, Vulnerability Assessments, Security Requirements Analysis, Cloud Security, Software Development Life Cycle, Cloud Computing, System Implementation, Program Development, Change Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Disaster Recovery, Server Administration, Windows Servers, Servers, Network Troubleshooting, Linux Servers, Virtualization and Virtual Machines, Hardware Troubleshooting, Operating System Administration, Data Storage Technologies, IT Automation, Remote Access Systems, System Monitoring, Networking Hardware, Computer Hardware, Firewall, Data Security, Encryption
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Identity and Access Management, Azure Active Directory, Microsoft Azure, Network Troubleshooting, Hybrid Cloud Computing, Network Security, Network Administration, Windows PowerShell, Virtual Machines, Infrastructure as Code (IaC), Virtualization, Role-Based Access Control (RBAC), Cloud Security, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: MySQL, Bash (Scripting Language), Scripting, Database Management, Relational Databases, Command-Line Interface, SQL, Databases, Data Import/Export, Database Application, Data Pipelines, Data Manipulation, Python Programming, Linux
Beginner · Guided Project · Less Than 2 Hours

Splunk Inc.
Skills you'll gain: Splunk, Correlation Analysis, Data Transformation, Data Manipulation, Data Visualization Software, Performance Tuning, Dashboard, Data Analysis Expressions (DAX), Statistical Analysis, Data Processing, Data Analysis, Data Synthesis, Data Modeling, Ad Hoc Reporting, Time Series Analysis and Forecasting, Real Time Data, Business Intelligence, Big Data, Data Science, Business Analytics
Beginner · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: No-Code Development, Cloud Applications, Application Design, Application Performance Management, Application Development, Authorization (Computing), Authentications, Application Lifecycle Management, Data Management, Restful API, Application Security, Scalability, Software Versioning, Automation, Data Integration, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Cloud Security, Internet Of Things, Infrastructure Security, Vulnerability Management, Information Systems Security, Incident Response, Identity and Access Management, Security Engineering, Threat Management, Penetration Testing, Network Security, Security Controls, Cloud Computing, Cloud Computing Architecture, Threat Detection, Authentications, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Portfolio Management, Investment Management, Asset Management, Market Liquidity, Risk Management, Financial Market, Financial Modeling, Financial Trading, Equities, Statistical Methods, Risk Analysis, Securities Trading, Market Dynamics, Financial Analysis, Statistical Analysis
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Database Systems, Microsoft Azure, Databases, Relational Databases, MySQL, SQL, Database Management, NoSQL, Cloud Services, PostgreSQL, Data Storage Technologies, Data Security, Data Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Computing, Cloud Infrastructure, Cloud Services, JavaScript Frameworks, Back-End Web Development, DevOps, Full-Stack Web Development, OpenShift, Version Control, Cloud Development, CI/CD, Software Development, Cloud-Native Computing, Web Applications, Microservices, Containerization, Kubernetes, Web Development, Serverless Computing, Docker (Software)
Intermediate · Course · 1 - 4 Weeks