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.

John Wiley & Sons
Skills you'll gain: IT Security Architecture, Identity and Access Management, Authentications, Network Security, Endpoint Security, Security Controls, Cybersecurity, Information Systems Security, Infrastructure Security, Network Architecture, Computer Security, User Provisioning, Authorization (Computing), Cryptographic Protocols, Cryptography, Firewall, Role-Based Access Control (RBAC), Single Sign-On (SSO), Network Protocols, Communication Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Planning And Design, Microsoft Azure, Network Security, Network Troubleshooting, Network Architecture, Network Support, Network Administration, IT Security Architecture, Security Engineering, Firewall, Network Monitoring, Virtual Private Networks (VPN), Virtual Networking, Network Routing, Role-Based Access Control (RBAC), General Networking, Network Performance Management, Hybrid Cloud Computing, Data Migration
★ 5 (32) · Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Network Security, Virtual Private Networks (VPN), IT Security Architecture, Intrusion Detection and Prevention, Hardening, Network Monitoring, Firewall, Network Administration, Remote Access Systems, Network Architecture, Network Planning And Design, Zero Trust Network Access, Security Engineering, Security Controls, Security Management, Threat Detection, Security Information and Event Management (SIEM), Security Awareness, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Cloud Computing Architecture, Cloud Security, Cyber Threat Intelligence, Vulnerability Assessments, Vulnerability Scanning, Cyber Attacks, Network Architecture, Threat Management, Cloud Infrastructure, Cloud Standards, Zero Trust Network Access, Cybersecurity, IT Security Architecture, Network Security, Cloud Deployment, Infrastructure Security, AI Security
★ 4.7 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Cybersecurity, Network Security, Cryptographic Protocols, Cyber Attacks, Encryption, IT Security Architecture, Identity and Access Management, Threat Management, Threat Detection, Firewall, Key Management, Security Management, Infrastructure Security, Security Controls, Network Planning And Design, Authorization (Computing), Public Key Infrastructure, Authentications, Risk Management Framework
★ 4.6 (9) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Network Security, Virtual Local Area Network (VLAN), Network Planning And Design, Network Administration, Network Architecture, Network Routers, Local Area Networks, Infrastructure Security, General Networking, Authentications, Network Switches
★ 4.7 (28) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Security, Wireless Networks, Network Performance Management, Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Ansible, Network Administration, Software-Defined Networking, Network Planning And Design, Local Area Networks, Network Protocols, System Configuration, Infrastructure as Code (IaC), Remote Access Systems, Terraform, Configuration Management, Authentications
★ 5 (6) · Advanced · Course · 3 - 6 Months

University of Colorado System
Skills you'll gain: Firewall, Network Security, Intrusion Detection and Prevention, Cyber Security Policies, Information Systems Security, Security Controls, Infrastructure Security, Threat Detection, System Monitoring, Linux Administration, Linux Servers, Linux, Linux Commands, Data Integrity
★ 3.9 (63) · Intermediate · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Network Security, Cybersecurity, Information Assurance, Cloud Security, Security Controls, Mobile Security, Data Security, Cryptography, Public Key Infrastructure, Cyber Security Policies, Authorization (Computing), Intrusion Detection and Prevention, Infrastructure Security, Network Monitoring, Wireless Networks, Authentications, Identity and Access Management, Enterprise Security, Cloud Computing, Data Loss Prevention
★ 5 (6) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Security, Virtualization, Augmented and Virtual Reality (AR/VR), Cloud Computing Architecture, Virtualization and Virtual Machines, Network Administration, Cloud Computing, Firewall, Virtual Networking, Network Architecture, Virtual Private Networks (VPN), Mobile Security, Network Infrastructure, Cloud Services, General Networking, Augmented Reality, Cloud Security, Security Controls, Network Protocols, Peripheral Devices
★ 4.8 (29) · Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Wireless Networks, Network Security, Threat Management, Vulnerability Assessments, Vulnerability Scanning, Local Area Networks, Cybersecurity, Cyber Attacks, Authentications, Security Awareness, Enterprise Security, Network Protocols, Telecommunications, Encryption, Identity and Access Management, Cryptographic Protocols, Networking Hardware, System Configuration
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Operations Support Systems, Decision Intelligence, Operational Analysis, AI Security, Operational Efficiency, Business Intelligence, Workflow Management, AI Enablement, AI Integrations, Business Process Automation, Cyber Governance, System Monitoring, Infrastructure Security, Process Optimization, AI literacy, Network Security, Network Infrastructure
Beginner · Course · 1 - 4 Weeks