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.

Google Cloud
Skills you'll gain: Firewall, Google Cloud Platform, Cloud Infrastructure, Network Administration, Network Security, Cloud Security, Cloud Computing Architecture, Infrastructure Security, Infrastructure Architecture
Beginner · Project · Less Than 2 Hours

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

Siemens
Skills you'll gain: Safety Standards, Automation Engineering, Machine Controls, Mechanical Design, Product Automation, Manufacturing Standards, Automation, Equipment Design, Robotic Process Automation, Control Systems, Engineering, Manufacturing and Production, Industrial Engineering, Performance Testing, Safety and Security, Human Machine Interfaces, Computer Programming, Programming Principles, Human Factors
Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Building Information Modeling, Civil Engineering, Construction Engineering, Building Design, Building Services Engineering, Facility Management, Landscape Architecture, Architectural Design, Energy and Utilities, Public Works, Transportation Operations, Sustainable Engineering, HVAC, Safety and Security, Sustainable Design, As-Built Drawings, Capacity Planning, Building Codes, Security Requirements Analysis, Safety Standards
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Group Policy, Dynamic Host Configuration Protocol (DHCP), Azure Active Directory, Active Directory, Windows Servers, Hyper-V, Remote Access Systems, Virtual Private Networks (VPN), Containerization, Microsoft Azure, Kubernetes, Microsoft Windows, Docker (Software), Hybrid Cloud Computing, Virtualization, Virtual Machines, Server Administration, Network Administration, Authentications, Infrastructure As A Service (IaaS)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: ASP.NET, Restful API, Object-Relational Mapping, Web Applications, User Accounts, Single Sign-On (SSO), .NET Framework, API Design, Application Programming Interface (API), Database Application, Authentications, Back-End Web Development, Performance Tuning, Authorization (Computing), Data Management, Relational Databases, Identity and Access Management, Model View Controller, Multi-Factor Authentication, Data Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment
Intermediate · Course · 1 - 4 Weeks

Sciences Po
Skills you'll gain: Transportation Operations, Social Studies, Demography, Social Sciences, Public Safety and National Security, Community Development, Environmental Issue, Public Policies, Education and Training, Sociology, Cultural Diversity, Culture, Economics
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Docker (Software), Azure DevOps, Restful API, Cross Platform Development, Microservices, Containerization, User Interface and User Experience (UI/UX) Design, DevOps, UI Components, ASP.NET, iOS Development, CI/CD, .NET Framework, Unit Testing, Software Testing, Android Development, Version Control
Intermediate · Specialization · 1 - 3 Months

Alibaba Cloud Academy
Skills you'll gain: Data Visualization Software, Big Data, Apache Hadoop, Apache Spark, Apache Hive, Distributed Computing, Data Processing, Data Warehousing, Data Analysis, Data Integration, Cloud Security, Artificial Intelligence and Machine Learning (AI/ML), SQL
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Scripting, Linux Commands, Windows PowerShell, Linux, IT Automation, Unix Commands, Unix, Debugging, Automation, Remote Access Systems, Command-Line Interface, Ubuntu, Development Environment, System Monitoring, Data Structures, Restful API, File Management
Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Spring Framework, Model View Controller, Java Platform Enterprise Edition (J2EE), Application Performance Management, Software Design Patterns, Java Programming, Java, Enterprise Architecture, Secure Coding, Software Architecture, Application Security, Security Assertion Markup Language (SAML), Dependency Analysis, Web Applications, Continuous Monitoring, OS Process Management, Debugging, Maintainability, Object Oriented Programming (OOP), Performance Tuning
Intermediate · Specialization · 3 - 6 Months