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.

University of London
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Human Computer Interaction, Interaction Design, jQuery, Bootstrap (Front-End Framework), Hypertext Markup Language (HTML), User Experience Design, User Accounts, MongoDB, User Experience, Wireframing, Web Applications, Full-Stack Web Development, Interactive Data Visualization, JavaScript Frameworks, Web Development Tools, User Interface (UI), Javascript
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Design, Restful API, Application Programming Interface (API), Data Mapping, Application Deployment, Scripting, Salesforce, Robotic Process Automation, Business Process Automation, Software Testing, Development Testing, Data Integration, Unit Testing, Cloud API, Middleware, Cloud-Based Integration, Application Performance Management, Architectural Design, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: WordPress, Web Design and Development, HTML and CSS, Web Analytics and SEO, Content Management Systems, Web Content, Cloud Hosting, Web Servers, Application Security
Beginner · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Blockchain, Cryptography, Encryption, FinTech, Digital Assets, Network Protocols, Transaction Processing, Data Storage, Distributed Computing, Emerging Technologies, Scripting, Market Dynamics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Python Programming, Mathematical Software, Programming Principles, Scripting, Algorithms, Debugging, Data Structures, File Management
Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft 365, Microsoft Office, Collaborative Software, Microsoft Teams, Productivity Software, Endpoint Security, Microsoft Windows, Automation, Microsoft Outlook, Data Loss Prevention, Data Security, Microsoft Word, Microsoft PowerPoint, Microsoft Excel
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Data Ethics, Artificial Intelligence, Business Ethics, Risk Analysis, SAS (Software), Compliance Training, Data Integrity, Human Centered Design, Accountability, Analytics, Diversity and Inclusion, Information Privacy, Data Governance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agile Methodology, User Story, Agile Software Development, Business Analysis, Sprint Retrospectives, Agile Project Management, Agile Product Development, Team Building, Process Design, Scrum (Software Development), Risk Management, Business Requirements, User Acceptance Testing (UAT), Business Valuation, Requirements Analysis, Project Management, Prioritization
Intermediate · Course · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Relational Databases, Databases, Database Theory, Database Design, Database Systems, Database Management, SQL, Database Architecture and Administration, Query Languages, Data Modeling, Transaction Processing, Data Management, Data Integrity, Data Storage, System Design and Implementation, Information Technology, Data Analysis, Information Architecture, Problem Solving, Logical Reasoning
Intermediate · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Ansible, Devops Tools, Automation, Infrastructure as Code (IaC), DevOps, YAML, Linux, Virtual Machines, Command-Line Interface, Cloud Infrastructure, Encryption, System Configuration
Beginner · Course · 1 - 4 Weeks

The Linux Foundation
Skills you'll gain: Open Source Technology, GitHub, CI/CD, Git (Version Control System), Collaborative Software, Software Development Methodologies, Software Development Life Cycle, Technical Communication
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: File Systems, Microsoft Windows, Cybersecurity, TCP/IP, Network Protocols, Data Security, Litigation Support, File Management, Network Security, Operating Systems, Data Structures, General Networking, Data Validation, Record Keeping, System Software, Data Integrity, Data Analysis Software, User Accounts, USB, System Configuration
Intermediate · Specialization · 3 - 6 Months