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.

Kennesaw State University
Skills you'll gain: Cybersecurity, IT Security Architecture, Network Security, Disaster Recovery, Application Security, Cyber Operations, Cryptography, Cyber Security Assessment, Information Systems Security, Cyber Risk, Encryption, Secure Coding, Systems Development Life Cycle, Security Controls, Cyber Governance, Security Management, Cyber Security Policies, Infrastructure Security, Security Awareness, Cryptographic Protocols
★ 4.3 (2.4K) · Beginner · Course · 1 - 3 Months

Kennesaw State University
Skills you'll gain: Cyber Security Strategy, Cybersecurity, Mobile Security, Cyber Attacks, Cyber Threat Intelligence, Security Management, Network Security, Cyber Security Policies, Internet Of Things, Cyber Governance, Digital Transformation, Emerging Technologies
★ 4.5 (640) · Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Application Security, Security Testing, Cyber Security Assessment, IT Security Architecture, Secure Coding, Identity and Access Management, Authentications, Network Security, Security Management, Endpoint Security, Vulnerability Scanning, Security Strategy, Security Controls, Disaster Recovery, Cybersecurity, Cyber Governance, Penetration Testing, Information Systems Security, Vulnerability Assessments, Risk Management
Beginner · Specialization · 1 - 3 Months

EC-Council
Skills you'll gain: Penetration Testing, Threat Management, Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Vulnerability Assessments, Security Testing, Network Security, Cyber Security Assessment, Cybersecurity, Cloud Computing, Cyber Attacks, Brute-force attacks, Exploitation techniques, Human Factors (Security), Web Applications, Mobile Security, Internet Of Things, Wireless Networks
★ 4.6 (618) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Wide Area Networks, Network Security, Network Routing, Data Centers, Virtual Networking, TCP/IP, Network Administration, Open Shortest Path First (OSPF), Network Protocols, Network Switches, Virtual Machines, Virtual Local Area Network (VLAN), Virtualization, Virtual Private Networks (VPN), Wireless Networks, Network Monitoring, Network Troubleshooting, Network Architecture, Hardware Troubleshooting
★ 4.8 (12) · Beginner · Specialization · 3 - 6 Months

New York University
Skills you'll gain: Network Security, Firewall, IT Security Architecture, Distributed Denial-Of-Service (DDoS) Attacks, Network Architecture, Intrusion Detection and Prevention, TCP/IP, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Cyber Attacks, Security Controls, Enterprise Security, Network Protocols, Proxy Servers
★ 4.7 (664) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Vulnerability Assessments, Vulnerability Scanning, Cyber Security Assessment, Network Monitoring, Penetration Testing, Virtual Private Networks (VPN), Command-Line Interface, Security Testing, Linux Commands, Cyber Operations, Cybersecurity, Information Systems Security, Linux, Software Installation, Network Security, Linux Administration, Network Analysis
★ 4.3 (239) · Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Multi-Factor Authentication, Network Security, Incident Response, Security Management, Virtual Private Networks (VPN), Vulnerability Management, Authentications, Penetration Testing, Public Key Infrastructure, Endpoint Security, Cloud Security, Cybersecurity, Identity and Access Management, Vulnerability Scanning, Cryptography, Vulnerability Assessments, Threat Management, Threat Detection, Risk Management, Compliance Auditing
Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Threat Detection, Exploitation techniques, Intrusion Detection and Prevention, Threat Management, Incident Response, Event Monitoring, Computer Security Incident Management, Malware Protection, Network Analysis, Anomaly Detection, Network Security, Network Monitoring, Network Protocols, SQL
★ 4.9 (36) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Digital Forensics, Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Risk Management, Cryptography, Cybersecurity, Risk Management Framework, Cloud Computing Architecture, Network Security, Incident Response, Threat Management, Cloud Security, Risk Analysis, Cryptographic Protocols, Cyber Attacks, Business Risk Management, Encryption, Cyber Security Policies, Cyber Threat Intelligence
★ 4.4 (18) · Intermediate · Specialization · 3 - 6 Months

Alibaba Cloud Academy
Skills you'll gain: Cloud Security, Network Security, General Networking, IT Security Architecture, Operating System Administration, Network Architecture, Data Security, Application Security, Cloud Computing, Cloud Infrastructure, Operating Systems, Linux, Hardening, Distributed Denial-Of-Service (DDoS) Attacks, Linux Commands
★ 4.7 (62) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Azure, Application Security, Cloud Security, IT Security Architecture, Infrastructure Security, Kubernetes, Network Security, Security Engineering, Security Controls, Firewall, Endpoint Security, Identity and Access Management, Security Strategy, Cyber Security Strategy, Infrastructure As A Service (IaaS), Authorization (Computing), Role-Based Access Control (RBAC), Cloud Services, Network Administration, Virtual Machines
★ 4.6 (26) · Intermediate · Course · 1 - 4 Weeks