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, OSI Models, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, TCP/IP, Network Administration, Wireless Networks, Network Protocols, General Networking, Telecommunications, Intrusion Detection and Prevention, Network Routers, Security Controls, Identity and Access Management, Mobile Security, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Network Security, System Configuration, Cyber Threat Intelligence, Network Administration, Amazon Web Services, Virtual Private Networks (VPN), Infrastructure Security, Network Monitoring, Network Troubleshooting, Threat Management, Network Performance Management, Endpoint Security, Intrusion Detection and Prevention, Endpoint Detection and Response, System Monitoring, Security Management, Cyber Security Policies, Configuration Management, Cloud Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Distributed Denial-Of-Service (DDoS) Attacks, Hardening, Network Protocols, Network Performance Management, Authentications, Identity and Access Management, Encryption, Hardware Troubleshooting, Virtual Local Area Network (VLAN), Multi-Factor Authentication, Key Management, Wireless Networks
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, General Networking, Cyber Threat Intelligence, Cyber Attacks, Endpoint Security, Infrastructure Security, Network Routing, Threat Detection, Computer Security, Network Administration, Firewall, Endpoint Detection and Response, Wireless Networks, Cloud Computing, Information Technology Infrastructure Library, Technical Support and Services
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Network Security, Threat Detection, Proxy Servers, Network Monitoring, Intrusion Detection and Prevention, Network Troubleshooting, Firewall, Google Cloud Platform, Identity and Access Management, Cloud Infrastructure
Intermediate · Course · 1 - 3 Months

Royal Holloway, University of London
Skills you'll gain: Computer Security Incident Management, Linux, Network Security, Cyber Governance, IT Security Architecture, OSI Models, Incident Management, Incident Response, Security Management, Linux Commands, TCP/IP, Computer Systems, Threat Modeling, Command-Line Interface, Network Protocols, Computer Networking, Cybersecurity, Human Factors (Security), Cyber Threat Intelligence, Cyber Attacks
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Routing Protocols, Network Security, Network Routing, TCP/IP, Network Administration, Open Shortest Path First (OSPF), Network Protocols, Network Switches, Virtual Local Area Network (VLAN), Network Monitoring, Firewall, Network Infrastructure, Network Troubleshooting, Border Gateway Protocol, Network Performance Management, Security Controls, Network Analysis, Authentications, Encryption
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Software-Defined Networking, Network Architecture, Network Engineering, Network Planning And Design, Wide Area Networks, Virtual Private Networks (VPN), Network Administration, Network Security, Network Performance Management, Firewall, Network Routing, Security Controls
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Network Troubleshooting, Proxy Servers, Network Monitoring, Cloud Security, Intrusion Detection and Prevention, Firewall, Google Cloud Platform, Infrastructure Security, Threat Detection, Security Controls, Hardening, Network Analysis, Identity and Access Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Computer Security Incident Management, Vulnerability Management, Exploitation techniques
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Infrastructure, Networking Hardware, Cybersecurity, Digital Communications
Beginner · Course · 1 - 4 Weeks