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: Continuous Integration, Debugging, Software Development Tools, Software Engineering Tools, Performance Tuning, Performance Testing
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Blockchain, Application Programming Interface (API), API Design, Secure Coding, Restful API, Application Security, Application Design, Cloud Applications, Software Development Tools, Systems Integration, Full-Stack Web Development, Interoperability, FinTech, Scripting, Payment Systems, Solution Architecture, Cryptography, Emerging Technologies, Development Testing, Transaction Processing
Advanced · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Portfolio Management, Investments, Risk Modeling, Asset Management, Return On Investment, Finance, Commercial Real Estate, Risk Management, Market Liquidity, Financial Modeling, Regulatory Requirements, Blockchain, Case Studies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Middleware, Web Services, Data Mapping, Simple Object Access Protocol (SOAP), Restful API, Software Technical Review, Application Development, Cloud Applications, Application Programming Interface (API), System Monitoring, Application Performance Management, Data Integration, Enterprise Application Management, Software Architecture, Business Process Automation, Performance Tuning, Scalability, Debugging, Application Security, Role-Based Access Control (RBAC)
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Site Reliability Engineering, Incident Management, System Monitoring, Network Monitoring, Prometheus (Software), Google Cloud Platform, Application Performance Management, Continuous Monitoring, Kubernetes, Cloud Applications, Security Information and Event Management (SIEM), Service Level, Firewall, Cloud Computing, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Containerization, Google Cloud Platform, Cloud Infrastructure, Cloud Services, Cloud Management, Application Deployment, Cloud Computing, Docker (Software), Microservices
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Google Cloud Platform, Data Processing, Systems Design, Data Storage, Data Architecture, Data Warehousing, Data Migration, Data Analysis, Data Transformation, Data Management, Data Preprocessing, Automation, Data Security
Advanced · Course · 1 - 3 Months

Skills you'll gain: Windows Servers, Remote Access Systems, Hyper-V, Server Administration, Operating System Administration, Active Directory, Windows PowerShell, Dynamic Host Configuration Protocol (DHCP), Virtual Private Networks (VPN), Group Policy, Virtualization, Network Infrastructure, System Monitoring, Data Storage, Event Monitoring, Identity and Access Management, Virtualization and Virtual Machines, Scalability
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Ansible, IT Automation, YAML, Automation, Infrastructure as Code (IaC), Configuration Management, Cloud-Based Integration, DevOps, Operational Efficiency, Scalability, User Provisioning, Cloud Development
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Blockchain, Cryptography, Scripting, Transaction Processing, Secure Coding, Application Development, Programming Principles, FinTech, Digital Assets, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Protocols, Collaborative Software, Dynamic Host Configuration Protocol (DHCP), Session Initiation Protocols, Network Routing, System Configuration, Telecommunications, Network Troubleshooting, Configuration Management, Network Performance Management, Endpoint Security, Cloud Management, Communication Systems, Service Level, User Accounts, Software Installation, Application Deployment
Intermediate · Course · 3 - 6 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Expense Management, Cost Management, Billing, Dashboard, Billing Systems, Accounting and Finance Software, Google Sheets, Data Visualization, Spreadsheet Software, Resource Management, Identity and Access Management, Data Import/Export, Microservices
Beginner · Course · 1 - 4 Weeks