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 Troubleshooting, Distributed Denial-Of-Service (DDoS) Attacks, Network Administration, Hardening, Network Monitoring, Intrusion Detection and Prevention, Cybersecurity, Network Protocols, Firewall, General Networking, Network Infrastructure, Network Performance Management, Authentications, Identity and Access Management, Encryption, Virtual Local Area Network (VLAN), Multi-Factor Authentication, Wireless Networks
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Cybersecurity, Network Security, Cloud Security, Application Security, OSI Models, Cryptography, Encryption, Endpoint Security, Firewall, Malware Protection, Wireless Networks, Network Protocols, Public Key Infrastructure, Data Integrity, Virtualization
Intermediate · Course · 1 - 4 Weeks

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

Cisco Learning and Certifications
Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Threat Detection, Threat Management, Exploit development, Computer Security Incident Management, Network Analysis, Cybersecurity, Network Security, Network Monitoring, SQL
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, AWS Identity and Access Management (IAM), Encryption, Network Security, System Monitoring, Amazon Web Services, Network Administration, Security Controls, Cloud Security, Firewall, Network Monitoring, Network Performance Management, Governance
Intermediate · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Infrastructure Security, Cyber Security Strategy, Mobile Security, Enterprise Security, Cyber Risk, Cyber Security Policies, Cybersecurity, Cloud Security, NIST 800-53, Hybrid Cloud Computing, Security Controls, Risk Management Framework, Blockchain, Internet Of Things, Cryptography, Data Integrity
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
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