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

Skills you'll gain: OSI Models, Network Security, Security Controls, General Networking, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Distributed Denial-Of-Service (DDoS) Attacks, Network Infrastructure, System Configuration, Network Architecture, Intrusion Detection and Prevention, Hardening, Remote Access Systems, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Metasploit, Penetration Testing, Network Security, Exploit development, Vulnerability Scanning, Security Testing, Wireless Networks, Cybersecurity, Exploitation techniques, Linux, Vulnerability Assessments, Information Systems Security, Cyber Attacks, Command-Line Interface, Linux Administration, Linux Commands, Network Analysis, Encryption, Virtual Private Networks (VPN), System Configuration
Beginner · Course · 1 - 3 Months

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
Build toward a degree
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Key Management, Data Security, Cryptography, Encryption, Cybersecurity, Network Security, Cryptographic Protocols, Security Information and Event Management (SIEM), Network Monitoring, Information Assurance, Network Analysis, Intrusion Detection and Prevention, Security Controls, Event Monitoring, Continuous Monitoring, Threat Detection, Data Integrity
Mixed · 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

Total Seminars
Skills you'll gain: Network Monitoring, Network Troubleshooting, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Network Performance Management, Security Controls, Threat Detection, Firewall, Virtual Private Networks (VPN), Network Switches, Infrastructure Security, Malware Protection, Hardening, Network Architecture, Network Analysis, Hardware Troubleshooting, Diagnostic Tests
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: IT Security Architecture, Identity and Access Management, Authentications, Network Security, Endpoint Security, Security Controls, Cybersecurity, Information Systems Security, Infrastructure Security, Network Architecture, Computer Security, User Provisioning, Authorization (Computing), Cryptographic Protocols, Cryptography, Firewall, Role-Based Access Control (RBAC), Single Sign-On (SSO), Network Protocols, Communication Systems
Intermediate · 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

Microsoft
Skills you'll gain: Network Security, Network Protocols, TCP/IP, Cloud Computing, Firewall, Cloud Services, General Networking, Networking Hardware, Network Architecture, OSI Models, Microsoft Azure, Computer Networking, Network Infrastructure, Software As A Service, Virtual Machines, Virtualization, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Security, Cybersecurity, Malware Protection, Network Security, Application Security, Information Systems Security, Cyber Security Strategy, Authentications, Data Security, Risk Management, Security Controls, Multi-Factor Authentication, Security Software, Threat Management, Risk Management Framework, Cryptography, Endpoint Security, Firewall, Threat Detection, Operating Systems
Intermediate · Course · 1 - 4 Weeks

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, Cyber Security Policies, Security Controls, Network Monitoring, Data Security, Cyber Risk
Intermediate · Course · 1 - 4 Weeks