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.

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Computer Security Incident Management, Exploitation techniques
★ 4.9 (10) · Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Network Security, Network Administration, Network Protocols, Network Architecture, TCP/IP, Cryptographic Protocols, General Networking, Cryptography, Computer Networking, Encryption, Web Development, Web Servers, Business Technologies, Innovation
★ 4.8 (2.8K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Penetration Testing, Intrusion Detection and Prevention, Vulnerability Assessments, Wireless Networks, Encryption, Application Security, Exploitation techniques, Web Applications, Cyber Security Strategy, Cloud Security
★ 4.9 (20) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring, Threat Management, Firewall, Incident Response, Network Security, Threat Detection, Network Monitoring, System Monitoring, Event Monitoring, Infrastructure Security, Cybersecurity, Anomaly Detection
★ 4.4 (48) · Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Network Security, Network Monitoring, Exploitation techniques, Cybersecurity, Vulnerability Scanning, Cryptographic Protocols, Remote Access Systems, Network Protocols, Encryption, General Networking, Command-Line Interface, Network Analysis, Proxy Servers
★ 4.6 (15) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: General Networking, Network Architecture, Threat Management, Cybersecurity, Networking Hardware, Information Technology, Computer Networking, Network Security, Threat Detection, Network Routers, Security Controls, Cyber Attacks, Network Switches, Diagram Design, Firewall, Security Software, Security Strategy
Beginner · Course · 1 - 4 Weeks
STARWEAVER
Skills you'll gain: Virtual Private Networks (VPN), Security Information and Event Management (SIEM), Virtual Local Area Network (VLAN), Network Security, Remote Access Systems, Cyber Security Strategy, Firewall, Continuous Monitoring, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Security Controls, Network Administration, IT Security Architecture, Network Engineering, Authentications, Network Architecture, Network Planning And Design, Network Monitoring, Incident Response
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Monitoring, Cloud Security, Disaster Recovery, Network Security, Cloud Services, AI Security, Cyber Security Policies, Cloud Deployment, Security Controls, Cloud Computing Architecture, Cloud Computing, Hybrid Cloud Computing, Cyber Security Strategy, Cybersecurity, Data Security, Threat Detection, Cloud Management
★ 4.3 (23) · Advanced · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Wireless Networks, Network Security, Threat Management, Vulnerability Assessments, Vulnerability Scanning, Local Area Networks, Cybersecurity, Cyber Attacks, Authentications, Security Awareness, Enterprise Security, Network Protocols, Telecommunications, Encryption, Cryptographic Protocols, Identity and Access Management, Networking Hardware, System Configuration
Beginner · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Network Security, Mobile Security, Public Key Infrastructure, Cryptography, Security Controls, Cryptographic Protocols, Cybersecurity, Authorization (Computing), Encryption, Authentications, Identity and Access Management, Wireless Networks, Cloud Computing, Cloud Security, Virtual Machines, Network Monitoring, Data Security, Internet Of Things, Virtualization and Virtual Machines
★ 4.6 (125) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Threat Detection, Cyber Threat Hunting, Anomaly Detection, Network Security, General Networking, Network Monitoring, Real Time Data, Security Strategy, Network Analysis, Network Protocols, Data Capture
★ 4 (9) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, Network Support, TCP/IP, Cybersecurity, Human Factors (Security), Technical Support and Services, Computer Networking, Hardware Troubleshooting, Network Performance Management, Command-Line Interface, Wireless Networks, Networking Hardware
★ 4.6 (7) · Advanced · Course · 1 - 4 Weeks