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.
University of Michigan
Skills you'll gain: Network Security, Network Protocols, Network Architecture, TCP/IP, Web Applications, Computer Networking, Encryption, Network Infrastructure, Innovation, Hypertext Markup Language (HTML)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Network Security, Vulnerability Scanning, Wireless Networks, Cybersecurity, Exploitation techniques, Linux, Command-Line Interface, Network Analysis, Encryption, Virtual Private Networks (VPN), System Configuration, Software Installation, File Management, Virtual Machines
Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Key Management, Data Security, Cryptography, Encryption, Cybersecurity, Network Security, Security Information and Event Management (SIEM), Network Monitoring, Information Assurance, Network Analysis, Intrusion Detection and Prevention, Event Monitoring, Continuous Monitoring, Threat Detection
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Attacks, Infrastructure Security, Cloud Infrastructure
Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Infrastructure, Cybersecurity
Beginner · 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

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

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

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

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, Network Routing, Virtual Private Networks (VPN), Network Architecture, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Switches, Network Protocols
Advanced · Course · 3 - 6 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: Communication Systems
Beginner · Course · 1 - 4 Weeks