Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Infosec
Skills you'll gain: Security Management, Cyber Governance, IT Management, Cybersecurity, Cyber Security Strategy, Cyber Risk, Cyber Security Policies, Key Performance Indicators (KPIs), Leadership and Management, Technical Communication, Internal Communications, Leadership, Program Management, Risk Management, Communication, Stakeholder Communications
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: No-Code Development, Model Deployment, Applied Machine Learning, MLOps (Machine Learning Operations), Machine Learning, Return On Investment, Model Evaluation, Analytics, Performance Measurement, Business Metrics, Responsible AI, Cloud Computing, Big Data, Scalability, Workflow Management, Continuous Improvement Process, Business Continuity, Auditing, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Management, Computer Literacy, Microsoft Office, Email Security, Computer Hardware, Computer Security Awareness Training, Spreadsheet Software, digital literacy, Information Management, Safety and Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Applications, Authentications, Google Cloud Platform, Cloud API, Web Applications, User Accounts, Web Development Tools, Web Development, Network Security
Intermediate · Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Javascript, Ajax, JSON, Web Applications, Web Development, Scripting, Hypertext Markup Language (HTML), Object Oriented Programming (OOP), Event-Driven Programming, Web Services, Programming Principles, Prototyping, Network Protocols
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Unix, Unix Commands, Network Protocols, Network Troubleshooting, TCP/IP, OS Process Management, File Management, General Networking, File Transfer Protocol (FTP), Network Administration, Linux, Operating Systems, Network Security
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Responsible AI, Containerization, Scalability, AI Orchestration, Application Deployment, Kubernetes, Azure Active Directory, System Monitoring, AI Workflows, Agentic systems, Artificial Intelligence, Microsoft 365, Microservices, Generative AI Agents, Enterprise Architecture, Microsoft Azure, AI Security, Enterprise Security, Role-Based Access Control (RBAC), Coordination
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Semiconductors, Electronics Engineering, Computer Architecture, Thermal Management, Scalability, Systems Integration, Materials science, Manufacturing Processes, Technical Standard, Reliability
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Networking Hardware, General Networking, Network Infrastructure, Local Area Networks, OSI Models, Network Protocols, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), TCP/IP, Network Architecture, Computer Networking, Network Model, Wireless Networks, Network Security, Network Switches, Virtual Local Area Network (VLAN)
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Persuasive Communication, Enterprise Sales, Stakeholder Communications, Global Marketing, Value Propositions, Milestones (Project Management)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, Embedded Systems, Application Security, System Programming, Digital Signal Processing, Security Engineering, Computer Architecture, Hardware Architecture
Advanced · Course · 1 - 3 Months

Skills you'll gain: API Design, Back-End Web Development, Secure Coding, Data Security, Application Programming Interface (API), Restful API, IT Infrastructure, Application Security, Infrastructure Security, Data Integrity, Servers, Cloud Security, Server Administration, Web Servers, Encryption, Authentications
Beginner · Course · 1 - 4 Weeks