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: Kubernetes, Application Deployment, API Gateway, Cloud-Native Computing, Containerization, Network Troubleshooting, Data Storage, Network Administration, Infrastructure Security, Role-Based Access Control (RBAC), YAML, Security Controls, Linux Administration, Data Storage Technologies, General Networking, Problem Management, Network Security, Data Persistence, Test Tools, Scenario Testing
Intermediate · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Threat Detection, Cybersecurity, Intrusion Detection and Prevention, Cyber Threat Intelligence, Cyber Attacks, Network Infrastructure, Network Security, Endpoint Detection and Response, Network Architecture, General Networking, Endpoint Security, Continuous Monitoring, Malware Protection, System Monitoring, Incident Response, Email Security, Anomaly Detection, Operating Systems, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Intelligence, Cyber Threat Hunting, Threat Detection, Vulnerability Assessments, Incident Response, Security Information and Event Management (SIEM), Threat Management, Cybersecurity, Computer Security Incident Management, IT Security Architecture, Cloud Security, Security Architecture Review, Cyber Risk, Cyber Security Policies, Data Security, Network Security, Cyber Security Strategy, Personally Identifiable Information, Malware Protection, Risk Management
Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Remote Access Systems, Local Area Networks, Software Installation, Command-Line Interface, Threat Management, Microsoft Windows, System Configuration, Threat Detection, Information Technology Operations, Wireless Networks, Systems Administration, Network Security, TCP/IP, Mobile Security, Peripheral Devices, USB, Operating Systems, Computer Hardware, Data Storage Technologies
Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Network Analysis, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Network Monitoring, Anomaly Detection, Network Protocols
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Operations, Intrusion Detection and Prevention, Cybersecurity, Security Controls, Cyber Attacks, Incident Response, Digital Forensics, Risk Management Framework, Exploitation techniques, Network Security, Threat Management, Computer Security Incident Management, Network Monitoring, Event Monitoring, Network Analysis, Firewall, Data Integrity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Vulnerability Assessments, Open Web Application Security Project (OWASP), Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Threat Modeling, Cybersecurity, Malware Protection, Mobile Security, Cyber Threat Intelligence, Penetration Testing, Exploitation techniques, Brute-force attacks, Network Security, Cryptography, Threat Management, Information Systems Security, Threat Detection, Cloud Security
Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Threat Detection, Cyber Security Strategy, System Monitoring, Cybersecurity, Cyber Operations, Continuous Monitoring, Network Security, Network Monitoring, Python Programming, Scripting, Scripting Languages
Intermediate · Course · 1 - 4 Weeks

Fortinet, Inc.
Skills you'll gain: Firewall, Network Administration, Network Troubleshooting, Network Infrastructure, Identity and Access Management, System Configuration, Configuration Management, Network Security, Security Management, Systems Integration, Scripting
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Engineering, Network Monitoring, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Network Administration, Local Area Networks, Network Analysis, OSI Models, Network Model, Network Routing
Build toward a degree
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Distributed Denial-Of-Service (DDoS) Attacks, Threat Management, Anomaly Detection, Continuous Monitoring, System Monitoring, Virtual Machines, Network Security, Virtualization and Virtual Machines, Event Monitoring, Network Monitoring, Network Analysis
Intermediate · Course · 1 - 3 Months

Alibaba Cloud Academy
Skills you'll gain: Relational Databases, Plot (Graphics), Load Balancing, Data Visualization Software, Cloud Security, Network Security, Cloud Management, Cloud Computing, Database Systems, Cloud Hosting, Database Management Systems, Big Data, Database Management, General Networking, Apache Hadoop, Cloud Infrastructure, Operating System Administration, Network Architecture, Apache Spark, Machine Learning
Beginner · Specialization · 3 - 6 Months