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

Amazon Web Services
Skills you'll gain: Load Balancing, Amazon Web Services, Network Performance Management, Network Architecture, Network Infrastructure, Scalability, TCP/IP, Network Protocols, Servers, Distributed Computing, Control Panels
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Email Security, Cybersecurity, Hardening, Authorization (Computing), Cyber Attacks, Security Awareness, Security Controls, Threat Management, Encryption, Data Security, Identity and Access Management, Authentications, Application Security, Endpoint Security, Threat Detection, Cryptography, Malware Protection, Patch Management, Multi-Factor Authentication
★ 4.9 (2K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LinkedIn, Professional Networking, Web Presence, Relationship Building, Professional Development, General Networking, Professionalism
★ 4.6 (894) · Beginner · Guided Project · Less Than 2 Hours

Total Seminars
Skills you'll gain: Docker (Software), Linux Administration, Containerization, Firewall, Linux Servers, Cryptography, Linux, Operating System Administration, Cryptographic Protocols, Hardening, Application Deployment, Computer Security, Security Controls, Linux Commands, Systems Administration, System Configuration, Authorization (Computing), Authentications, System Monitoring, Security Engineering
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, Identity and Access Management, Cloud Computing, User Provisioning, Security Controls, Cloud Management, Malware Protection, Cloud Infrastructure, Cloud Security, Information Systems Security, Authorization (Computing), Network Security, Hardening, Cryptographic Protocols, Cybersecurity
★ 4.5 (658) · Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Microsoft Azure, Threat Modeling, Cloud Security, Continuous Monitoring, System Monitoring, Security Information and Event Management (SIEM), Security Management, Security Controls, Threat Detection, Threat Management, Application Performance Management, Cyber Security Policies, Event Monitoring, Brute-force attacks, Incident Response, Query Languages, Interactive Data Visualization
★ 4.6 (12) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Management, Identity and Access Management, IT Security Architecture, Incident Response, Security Controls, Endpoint Security, Threat Management, Vulnerability Assessments, Cloud Computing Architecture, Incident Management, Endpoint Detection and Response, DevSecOps, Cloud Computing, Intrusion Detection and Prevention, Event Monitoring, Network Administration, Security Management, Data Security, Infrastructure Security, Mobile Security
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Awareness, Information Systems Security, Cybersecurity, Cyber Security Strategy, Cyber Security Policies, Information Privacy, Data Sharing, Telecommuting, Professional Development
★ 4.6 (14) · Beginner · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Data Encryption Standard, Threat Management, Cyber Risk, IT Security Architecture, Mobile Security, Enterprise Security, Cyber Security Assessment
★ 4.7 (3.7K) · Beginner · Specialization · 3 - 6 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Web Servers, Distributed Computing, Network Troubleshooting, Server Side, Web Applications, Middleware, Servers, Network Monitoring, Network Architecture, System Programming, Network Protocols, Systems Architecture, Systems Design, TCP/IP, Computer Networking, Network Performance Management, System Design and Implementation, Microservices, Software Development, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: NSX-T Network Virtualization, Virtual Networking, Software-Defined Networking, Zero Trust Network Access, Network Switches, Network Architecture, Software-Defined Data Center (SDDC), Routing Protocols, Network Security, Security Controls, Firewall, Network Routing, Load Balancing, Network Protocols, Infrastructure Architecture, Scalability
Intermediate · Course · 1 - 4 Weeks