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: SQL, Transaction Processing, Query Languages, Database Management, Data Manipulation, Data Security, Stored Procedure, Relational Databases, Data Transformation, Data Storage, Data Integrity, Authorization (Computing), Data Dictionary
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Storage, Database Management, Cloud Platforms, Role-Based Access Control (RBAC)
Beginner · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Amazon Web Services, Public Cloud, Cloud Computing, Amazon Elastic Compute Cloud, AWS Identity and Access Management (IAM), Cloud Management, Cloud Solutions, Cloud Platforms, Cloud Services, Cloud Infrastructure, Cloud Security, Amazon S3, Cloud Storage, Amazon CloudWatch, Amazon DynamoDB, Data Storage, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Flask (Web Framework), Application Deployment, Web Applications, Hypertext Markup Language (HTML), Application Development, Web Development, HTML and CSS, Python Programming
Beginner · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Social Studies, Political Sciences, International Relations, Diversity Awareness, Social Justice, Public Policies, Culture, Social Sciences, Cultural Diversity, Diplomacy, Immigration Law, Economics, World History, Strategic Partnership, Economics, Policy, and Social Studies, Higher Education, Policy Analysis, Technology Strategies, Public Safety and National Security, Governance
Beginner · Specialization · 3 - 6 Months

Splunk Inc.
Skills you'll gain: Splunk, Correlation Analysis, Performance Tuning, Data Manipulation, Data Analysis, Data Modeling, Big Data, Transaction Processing, Data Science, Business Analytics, Data Visualization
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Legal Technology, Legal Research, Responsible AI, Data Ethics, Generative AI, Workflow Management, Operational Efficiency, Prompt Engineering, Automation, Document Management, Ethical Standards And Conduct, Data Security, Verification And Validation, Quality Control
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Excel, Data Validation, Customer Data Management, Excel Formulas, Microsoft 365, Customer Relationship Management, Data Entry, Spreadsheet Software, Customer Service, Data Security, Data Management, Invoicing, User Accounts, Editing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Kubernetes, Network Security, Role-Based Access Control (RBAC), Infrastructure Security, Firewall, Private Cloud, Cloud Computing
Beginner · Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Software-Defined Networking, Network Security, Infrastructure Security, Computer Networking, Local Area Networks, Network Architecture, Network Infrastructure, Wide Area Networks, Virtualization, Scalability
Beginner · Course · 1 - 4 Weeks

Splunk Inc.
Skills you'll gain: Splunk, Data Transformation, Data Manipulation, Data Analysis Expressions (DAX), Statistical Analysis, Data Processing, Data Synthesis, Time Series Analysis and Forecasting, Real Time Data, Data Analysis, Big Data, Data Science, Business Analytics, Data Visualization
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Site Reliability Engineering, Docker (Software), Containerization, Kubernetes, Virtualization, Devops Tools, Microservices, Application Deployment, Virtual Machines, Cloud Development, Database Management, GitHub, Cloud-Based Integration, Scalability
Advanced · Course · 1 - 4 Weeks