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.

Infosec
Skills you'll gain: Authentications, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Browser Compatibility
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Incident Response, Computer Security Incident Management, Intrusion Detection and Prevention, Cyber Threat Hunting, Cybersecurity, Anomaly Detection, Cyber Security Strategy, Threat Detection, Cyber Security Policies, Security Management, Network Analysis, AI Security, Network Security, Network Monitoring, NIST 800-53, Network Protocols, Cloud Security
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Amazon Elastic Compute Cloud, Cloud Computing, Cloud Security, Load Balancing, User Accounts, Apache, Web Servers, System Configuration, Command-Line Interface, Linux, Debugging, Network Routing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Patch Management, Data Security, Information Systems Security, Cloud Security, Cybersecurity, Cyber Attacks, Internet Of Things, Mobile Security, Hardening, Personally Identifiable Information, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Vulnerability Management, Release Management, Data Storage, Operating Systems, Cloud Services, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Authentications, Secure Coding, ASP.NET, Microsoft Copilot, Data Security, Back-End Web Development, Authorization (Computing), JSON, Identity and Access Management, Data Storage, Application Programming Interface (API), Encryption
Beginner · Course · 1 - 4 Weeks

NVIDIA
Skills you'll gain: OSI Models, TCP/IP, Data Centers, Network Protocols, Network Infrastructure, Local Area Networks, General Networking, Network Architecture, Computer Networking, Network Planning And Design, Network Switches, System Requirements
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Authentications, OAuth, Development Testing, Software Development Life Cycle, Unified Modeling Language, Authorization (Computing), Single Sign-On (SSO), Software Development, Security Software, Vulnerability Assessments, Data Validation, Cyber Security Assessment, Cyber Security Strategy, Cybersecurity, Role-Based Access Control (RBAC)
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Continuous Monitoring, Cybersecurity, Security Management, Network Security, Security Strategy, Risk Management Framework, Internet Of Things, Cyber Risk, Threat Management, Cyber Security Strategy, Infrastructure Security, Hardware Architecture, Security Engineering, Encryption, Communication Systems, Wireless Networks, Information Systems Security, Vulnerability Assessments, Risk Analysis, Network Infrastructure
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Cyber Operations, Continuous Monitoring, Cybersecurity, Cyber Security Strategy, Threat Management, DevOps, Security Engineering, Threat Detection, Cyber Security Assessment, Incident Response, Site Reliability Engineering, Digital Transformation, Agile Methodology, Automation, Critical Thinking
Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Monitoring, Routing Protocols, Software-Defined Networking, TCP/IP, Network Routing, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Network Performance Management, System Monitoring, Network Planning And Design, Disaster Recovery, Computer Networking, Network Architecture, Virtual Local Area Network (VLAN), Network Administration, Network Protocols, Border Gateway Protocol, Document Management, Software Installation
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Role-Based Access Control (RBAC), AWS Identity and Access Management (IAM), Amazon Web Services, Amazon Elastic Compute Cloud, Cloud Computing, Malware Protection, Threat Modeling, Cloud Security, Load Balancing, Security Engineering, User Accounts, Authorization (Computing), Identity and Access Management, Network Security, Information Systems Security, Cybersecurity, Encryption, Geographic Information Systems
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Routing Protocols, Command-Line Interface, Open Shortest Path First (OSPF), Network Monitoring, Virtual Local Area Network (VLAN), Border Gateway Protocol, Network Routing, Wireless Networks, Network Administration, Network Infrastructure, Local Area Networks, Event Monitoring, Network Switches, Network Troubleshooting, Network Protocols, Network Routers, TCP/IP, Network Architecture, Network Security, Service Level
Intermediate · Course · 3 - 6 Months