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: NSX-T Network Virtualization, Virtual Networking, Virtualization, Network Architecture, Disaster Recovery, Software-Defined Networking, Network Security, Business Continuity Planning, IT Automation, Firewall, Network Routing, Business Transformation, Application Security, Hybrid Cloud Computing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Network Monitoring, Network Administration, Network Security, Firewall, Ansible, System Monitoring, Network Protocols, Security Controls, Software-Defined Networking, Puppet (Configuration Management Tool), Chef (Configuration Management Tool), Network Switches, Real Time Data, Authentications, Scripting, JSON, Automation, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Assessments, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Malware Protection, Penetration Testing, Exploitation techniques, Threat Detection, Threat Management, Brute-force attacks, Network Security, Information Systems Security, Security Awareness, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Anomaly Detection, Operations Support Systems, Generative AI Agents, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Deep Learning, AI Security, Real Time Data, Artificial Intelligence, Telecommunications, Network Performance Management, Emerging Technologies, Responsible AI, Network Architecture, Wireless Networks, Computer Networking, Network Protocols, System Design and Implementation, Digital Communications, Communication
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: OSI Models, Network Troubleshooting, General Networking, Computer Networking, Network Architecture, Network Infrastructure, Network Monitoring, Network Security, Virtual Networking, Routing Protocols, Network Routing, Virtual Local Area Network (VLAN), Wireless Networks, Disaster Recovery, Network Protocols, Network Switches, Cloud Services
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Cyber Threat Intelligence, Cyber Threat Hunting, Threat Detection, Vulnerability Assessments, Threat Management, Event Monitoring, Security Information and Event Management (SIEM), Continuous Monitoring, Incident Response, Security Management, Malware Protection, Network Security, System Monitoring, Network Analysis, Network Monitoring
Mixed · Course · 1 - 4 Weeks

The University of Chicago
Skills you'll gain: Software-Defined Networking, Virtual Networking, Virtualization, Network Architecture, General Networking, Network Administration, Network Switches, Network Routing, Network Security, Network Protocols, Hardware Architecture, Application Programming Interface (API), Data-oriented programming
Mixed · Course · 1 - 3 Months

Ball State University
Skills you'll gain: Cryptography, Application Security, Encryption, Authentications, Cybersecurity, Data Encryption Standard, Advanced Encryption Standard (AES), Email Security, Network Security, Information Systems Security, Key Management, Application Development, Public Key Infrastructure, Data Integrity
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Penetration Testing, Vulnerability Assessments, Firewall, Exploitation techniques, Human Factors (Security)
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: TCP/IP, Local Area Networks, Routing Protocols, Network Routing, Digital Communications, OSI Models, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Planning And Design, Network Architecture, Computer Networking, Network Infrastructure, Network Performance Management, Wireless Networks, Graph Theory, Telecommunications, Software-Defined Networking, Algorithms, System Programming
Intermediate · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Vulnerability Management, Penetration Testing, Vulnerability Assessments, Intrusion Detection and Prevention, Security Testing, Network Security, Threat Management, System Testing, Firewall, Cybersecurity, Cloud Security, Microsoft Azure, Virtual Private Networks (VPN), Virtual Networking, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Edureka
Beginner · Course · 1 - 4 Weeks