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.

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

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

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

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

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, Hardening, Network Architecture, Network Analysis, Hardware Troubleshooting, Diagnostic Tests
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

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: 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: 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

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

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

Fortinet, Inc.
Skills you'll gain: Network Support, Network Troubleshooting, Firewall, Network Monitoring, Technical Support and Services, Network Security, Virtual Private Networks (VPN), Lightweight Directory Access Protocols, System Monitoring, Authentications, Performance Tuning, Security Software, System Configuration, Cybersecurity, Memory Management, Malware Protection
Intermediate · Course · 1 - 3 Months