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.

Board Infinity
Skills you'll gain: Performance Testing, Maintainability, Test Tools, Software Testing, Code Review, Test Automation, Software Technical Review, Test Planning, Software Quality (SQA/SQC), Scripting, Risk Analysis, Software Quality Assurance, Continuous Integration, CI/CD, Regression Testing, Code Coverage, Test Case, Unit Testing, Quality Assurance, Security Testing
Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Linux Administration, Event Monitoring, Linux Commands, Maintainability, Performance Testing, Data Storage Technologies, Scenario Testing, OS Process Management, Data Storage, Simulations
Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Responsible AI, Information Privacy, Generative AI, Google Cloud Platform, Personally Identifiable Information, Data Security, Cloud Security, Safety and Security, Artificial Intelligence, Data Governance, Machine Learning Methods, Encryption
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Performance Management, Software Design Patterns, Java, Enterprise Architecture, Secure Coding, Model View Controller, Software Architecture, Application Security, Maintainability, Continuous Monitoring, Debugging, Scalability
Intermediate · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: International Relations, Diplomacy, Political Sciences, World History, Economic Development, Security Strategy, Policy Analysis, Cultural Diversity, Governance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Software Development Methodologies, Development Environment, Software Development, Application Programming Interface (API), Version Control, Software Design Patterns, JSON, Software Design, Network Engineering, Restful API, Virtualization and Virtual Machines, Web Applications, TCP/IP, YAML, Extensible Markup Language (XML), Authentications
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Application Programming Interface (API), GraphQL, API Design, Restful API, Postman API Platform, OAuth, Software Documentation, Authentications, Debugging, Real Time Data, Web Development, JavaScript Frameworks, Node.JS, JSON, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Active Directory, Azure Active Directory, Virtual Machines, Group Policy, Hyper-V, Windows Servers, Virtualization and Virtual Machines, Cloud Infrastructure, Containerization, Server Administration, Remote Access Systems, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Dynamic Host Configuration Protocol (DHCP), Hybrid Cloud Computing, Microsoft Windows, Windows PowerShell, Data Storage Technologies, User Accounts
Intermediate · Specialization · 1 - 3 Months

O.P. Jindal Global University
Skills you'll gain: International Relations, Diplomacy, Political Sciences, World History, Public Policies, Social Sciences, Policy Analysis, Economics, Case Studies, Governance, Security Strategy, Analytical Skills
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Snowflake Schema, Data Pipelines, Apache Airflow, Data Security, Data Infrastructure, Data Governance, Data Architecture, Extract, Transform, Load, Apache Kafka, Data Lakes, Data Management, Performance Tuning, PySpark, Data Warehousing, Amazon S3, Amazon Web Services, Real Time Data, Data Processing, SQL, Stored Procedure
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Ansible, Nginx, Web Servers, Infrastructure as Code (IaC), YAML, Application Deployment, Linux Servers, CI/CD, Servers, Scalability, Service Management, Verification And Validation
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Google Cloud Platform, Kubernetes, Google App Engine, Cloud Storage, Load Balancing, Cloud Services, Cloud Infrastructure, Cloud Computing, Infrastructure As A Service (IaaS), Containerization, Data Storage, Virtual Machines, Performance Tuning, Cloud Security, Application Deployment, Cloud Applications, Cloud Management, DevOps, Scalability
Intermediate · Course · 1 - 4 Weeks