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.

Skills you'll gain: Operating System Administration, Microsoft Windows, Mac OS, Command-Line Interface, Linux, Linux Administration, Operating Systems, Software Installation, Systems Administration, System Configuration, Control Panels, Linux Commands, Collaborative Software, General Networking, Cloud Management, Computer Networking, File Systems, File Management
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Network Monitoring, Network Administration, Network Troubleshooting, Network Support, General Networking, Event Monitoring, Network Security, Computer Networking, Network Infrastructure, Command-Line Interface, Software-Defined Networking, Application Programming Interface (API), System Configuration, Network Protocols, Security Controls, Configuration Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Operating System Administration, Information Technology Operations, Incident Management, IT Automation, Security Controls, Data Storage Technologies, Systems Administration, System Support, Technical Support and Services, Network Support, Scripting, Endpoint Security, Network Troubleshooting, Knowledge of Apple Software, Wireless Networks, User Accounts
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Secure Coding, HTML and CSS, UI Components, User Interface (UI) Design
Intermediate · Course · 1 - 4 Weeks

Fred Hutchinson Cancer Center
Skills you'll gain: Model Evaluation, Model Training, AI Personalization, AI literacy, AI Integrations, AI Product Strategy, AI Security, Artificial Intelligence, Goal Setting, Decision Making, Usability Testing, Needs Assessment, Project Planning, Resource Planning, Resource Management
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Hosting, Blockchain, Virtual Machines, Software Installation, Google Cloud Platform, Key Management, User Accounts, Development Environment, Network Security
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Metasploit, Exploit development, Exploitation techniques, Vulnerability, Penetration Testing, Vulnerability Assessments, Vulnerability Scanning, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, System Configuration, Data Security, Cybersecurity, Cyber Attacks, Linux, Bash (Scripting Language), Proxy Servers, Scripting, Linux Commands, Scripting Languages, Python Programming
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: AI Security, Application Security, Secure Coding, DevSecOps, Security Testing, Threat Modeling, Vulnerability Scanning, Vulnerability Assessments, AI Personalization, Continuous Integration, Open Source Technology, CI/CD, PyTorch (Machine Learning Library), MLOps (Machine Learning Operations), Dependency Analysis, Analysis, Program Implementation, Supply Chain
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: ASP.NET, Web Applications, Web Development, .NET Framework, Microservices, Single Sign-On (SSO), Performance Tuning, Web Design and Development, Identity and Access Management, Full-Stack Web Development, C# (Programming Language), Application Security, Security Controls, Cloud Development, Multi-Factor Authentication, Application Frameworks, Authentications, Server Side, Authorization (Computing), Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Peripheral Devices, File Systems, Mac OS, User Accounts, Virtual Private Networks (VPN), Apple software proficiency, File Management, Knowledge of Apple Software, TCP/IP, User Provisioning, Data Security, System Configuration, Network Protocols, Operating System Administration, Network Administration, Enterprise Application Management, Network Support, Software Installation, Remote Access Systems, Data Management
Beginner · Specialization · 1 - 3 Months

Alfaisal University | KLD
Skills you'll gain: Microsoft Word, Microsoft Office, Microsoft Excel, Email Automation, Grammar, Document Management, Business Writing, Security Controls, Document Control
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Collaborative Software, Organizational Skills, Document Management, Project Management Software, Project Coordination, Telecommuting, Project Management, Productivity Software, Internal Communications, File Management, User Accounts, Information Privacy, Account Management
Beginner · Guided Project · Less Than 2 Hours