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, Intrusion Detection and Prevention, Command-Line Interface, Cybersecurity, Information Systems Security, Local Area Networks, Firewall, Windows PowerShell, Hardening, Threat Detection, Linux, Penetration Testing, Network Architecture, Wireless Networks, Vulnerability Assessments, System Configuration, IT Automation, Encryption, Network Analysis, Public Key Infrastructure
Intermediate · Course · 1 - 4 Weeks

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

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: Cybersecurity, TCP/IP, Cyber Attacks, Endpoint Security, Infrastructure Security, Network Routing, Threat Detection, Computer Security, Firewall, Computer Networking, Wireless Networks, Cloud Computing, Information Technology Infrastructure Library, Technical Support and Services, Vulnerability Assessments
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Wireless Networks, Network Performance Management, Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Ansible, Network Administration, Firewall, Software-Defined Networking, Network Planning And Design, Network Infrastructure, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption
Advanced · Course · 3 - 6 Months

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

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Network Administration, Network Routing, Cloud Security, Firewall, Virtual Networking, Wide Area Networks, Network Architecture, Network Monitoring, Security Controls, Encryption, Threat Detection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Vulnerability Assessments, Security Controls, Blockchain, Security Testing, Network Infrastructure, Network Security, Cryptography, Malware Protection, Scripting, Transaction Processing, Network Protocols, Encryption
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Firewall, Network Security, Intrusion Detection and Prevention, Information Systems Security, Security Controls, Network Monitoring, Threat Detection, Linux Administration, Linux
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Puppet (Configuration Management Tool), Software-Defined Networking, Network Administration, Security Awareness, Chef (Configuration Management Tool), Information Systems Security, Virtual Private Networks (VPN), JSON, Authentications, Computer Networking, Authorization (Computing), Automation, Configuration Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Identity and Access Management, Virtual Networking, Network Monitoring, Google Cloud Platform, Network Administration, Virtual Private Networks (VPN), General Networking, Network Troubleshooting, Network Security, Network Architecture, Cloud Computing, Cloud Security, Firewall, Cloud Management, Key Management, Load Balancing, DevOps, Encryption, Automation
Intermediate · Course · 1 - 4 Weeks

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