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 Security, Cryptography, Firewall, Cybersecurity, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Cloud Security, Public Key Infrastructure, Network Monitoring, Encryption, Network Architecture, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Local Area Networks, Virtual Local Area Network (VLAN), Network Switches, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Network Administration, Infrastructure Security, Ansible, Firewall, Network Infrastructure, Security Controls, Wireless Networks, Network Monitoring, Computer Networking, Identity and Access Management, Authorization (Computing), Scripting, Authentications, Automation, Encryption, Data Modeling, Application Programming Interface (API)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Network Security, Network Planning And Design, VPN Clients, Virtual Private Networks (VPN), Cyber Security Strategy, Network Architecture, Firewall, Security Controls, Network Monitoring, Intrusion Detection and Prevention, Virtual Local Area Network (VLAN), Threat Management, Threat Detection, Continuous Monitoring, Authentications, Wireless Networks, Authorization (Computing), Identity and Access Management, Encryption, Incident Response
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Routing Protocols, Network Routing, TCP/IP, Network Routers, Virtual Private Networks (VPN), OSI Models, Computer Networking, General Networking, Network Protocols, Networking Hardware, Network Switches, Network Troubleshooting, Local Area Networks, Network Performance Management, Network Infrastructure, Wireless Networks, Network Security, Network Model, Network Analysis
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Wide Area Networks, Network Security, Threat Detection, Network Administration, TCP/IP, Multiprotocol Label Switching, Computer Networking, Network Routing, Virtual Private Networks (VPN), Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Switches, Network Protocols
Advanced · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Continuous Monitoring, Cloud Security, Disaster Recovery, Network Security, Cloud Services, AI Security, Security Strategy, Cloud Computing Architecture, Cloud Computing, Hybrid Cloud Computing, Infrastructure Security, Cybersecurity, Security Management, Threat Detection, Cloud Management, Encryption, Identity and Access Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Computer Security Incident Management, Incident Response, Cybersecurity, Cyber Attacks, Cyber Security Policies, Networking Hardware, Threat Detection, Technical Support, Network Security, General Networking, Computer Networking, Network Architecture, Network Administration, Network Protocols
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring, Threat Management, Firewall, Incident Response, Network Security, Threat Detection, Network Monitoring, Information Systems Security, Infrastructure Security, Cybersecurity
Advanced · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Usability, Human Computer Interaction, Authentications, Security Engineering, Usability Testing, Interaction Design, Human Factors, Information Privacy, Cybersecurity, Personally Identifiable Information, User Interface (UI) Design, Multi-Factor Authentication, User Centered Design, Design
Mixed · Course · 1 - 3 Months

Skills you'll gain: Network Security, OSI Models, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, TCP/IP, Network Administration, Wireless Networks, Network Protocols, General Networking, Intrusion Detection and Prevention, Local Area Networks, Network Routers, Security Controls, Mobile Security, Authentications, Authorization (Computing)
Beginner · Course · 1 - 4 Weeks

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