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: Vulnerability Scanning, Vulnerability Assessments, Penetration Testing, Security Testing, Network Security, Threat Detection, Network Monitoring, Network Analysis, Operating Systems
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Monitoring, Network Security, Incident Response, Anomaly Detection, Network Analysis, Digital Forensics, Cyber Security Assessment, Network Protocols, Threat Detection, Technical Communication, Distributed Denial-Of-Service (DDoS) Attacks, Computer Security, Cybersecurity
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Network Security, Cyber Operations, Network Monitoring, Exploitation techniques, Vulnerability Scanning, Cryptographic Protocols, Remote Access Systems, Network Protocols, Encryption, General Networking, Command-Line Interface, Network Analysis, Proxy Servers
Build toward a degree
Intermediate · Course · 1 - 3 Months

Check Point Software Technologies Ltd.
Skills you'll gain: Virtual Private Networks (VPN), Threat Management, Network Security, Firewall, Threat Detection, Intrusion Detection and Prevention, Disaster Recovery, Remote Access Systems, Network Administration, Data Integrity, Network Monitoring, Cyber Security Policies, Security Controls, System Configuration, Network Troubleshooting, Security Management, System Monitoring, Active Directory
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Cybersecurity, Cyber Attacks, Network Security, Information Systems Security, Business Continuity Planning, Cryptography, Security Architecture Review, Disaster Recovery, Business Continuity, Cyber Security Policies, Cryptographic Protocols, IT Security Architecture, Telecommunications, Network Administration, Law, Regulation, and Compliance, NIST 800-53, Infrastructure Security, Security Controls, Data Security, Governance Risk Management and Compliance
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Virtual Private Networks (VPN), Authentications, Firewall, Authorization (Computing), Computer Security, Remote Access Systems, Cybersecurity, General Networking, Network Monitoring, Security Controls, IT Automation, Software-Defined Networking, Wireless Networks, Dynamic Host Configuration Protocol (DHCP), Virtual Local Area Network (VLAN), Automation, Network Routing, Encryption, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, Computer Networking, Virtual Local Area Network (VLAN), Network Administration, Network Architecture, Network Infrastructure, Network Troubleshooting, General Networking, Wide Area Networks, Network Planning And Design, Local Area Networks, Cloud Computing, TCP/IP, Network Security, Threat Detection, Cloud Services, Network Protocols, Intrusion Detection and Prevention, Networking Hardware, Computer Security
Mixed · Course · 1 - 3 Months

Skills you'll gain: Network Security, Computer Systems, Encryption, Cyber Security Strategy, Cybersecurity, Threat Detection, Security Controls, General Networking, Cloud Computing, Microsoft Azure, Cryptography, Operating Systems, Firewall, Network Monitoring, Virtualization, Authorization (Computing), Active Directory, Business Software, General Data Protection Regulation (GDPR), Authentications
Intermediate · Specialization · 3 - 6 Months

Total Seminars
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cybersecurity, Network Security, Cyber Attacks, Penetration Testing, Cyber Security Assessment, Application Security, Cyber Security Strategy, Cyber Threat Intelligence, Vulnerability Scanning, Security Controls, Network Monitoring, Data Security, Cyber Risk
Intermediate · Course · 1 - 4 Weeks