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.

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Role-Based Access Control (RBAC), Identity and Access Management, Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Data Sharing, Security Information and Event Management (SIEM), Responsive Web Design, User Accounts, Mobile Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Security, System Configuration, Threat Detection, Security Information and Event Management (SIEM), Configuration Management, Google Cloud Platform, Security Management, Vulnerability Scanning, Identity and Access Management, Vulnerability Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Security Controls, Cyber Attacks, Security Management, Cyber Security Strategy, Incident Response, Cyber Risk, Security Information and Event Management (SIEM), Information Assurance, Data Ethics, Network Analysis, Ethical Standards And Conduct
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Open Web Application Security Project (OWASP), Debugging, DevSecOps, Penetration Testing, Cyber Security Strategy, Security Testing, Application Security, Vulnerability Scanning, Continuous Monitoring, Software Testing, Cybersecurity, Vulnerability Assessments, Threat Modeling, Test Automation, Secure Coding, Technical Communication
Intermediate · Course · 1 - 3 Months

NVIDIA
Skills you'll gain: OSI Models, TCP/IP, Data Centers, Network Protocols, Network Infrastructure, Local Area Networks, General Networking, Network Architecture, Computer Networking, Network Switches, System Requirements
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Secure Coding, Database Management, Relational Databases, Query Languages, Security Controls, Data Access, Data Security, Role-Based Access Control (RBAC), Threat Detection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, User Accounts, Identity and Access Management, Authentications, Virtual Machines, Operating System Administration, Security Controls, System Configuration, Virtual Environment, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Content, Social Media, Presentations, Social Media Marketing, Content Creation, Instagram, Social Media Strategy, Facebook, Content Marketing, LinkedIn, Digital Marketing, Graphic Design
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Architecture, Network Planning And Design, Cloud Computing Architecture, Network Security, Google Cloud Platform, General Networking, Cloud Infrastructure, Virtual Local Area Network (VLAN), Network Infrastructure, Network Troubleshooting, Network Routing, Network Monitoring, Firewall, Load Balancing, Scalability
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Computer Security, OSI Models, Systems Administration, Virtualization, Operating System Administration, Network Security, Information Technology, Information Systems Security, Enterprise Security, General Networking, Cybersecurity, Computer Networking, Virtual Machines, Enterprise Architecture
Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Telecommunications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Security Controls, Continuous Monitoring, Authorization (Computing), Anomaly Detection
Intermediate · Course · 1 - 4 Weeks