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 Security, Intrusion Detection and Prevention, Command-Line Interface, Cybersecurity, Information Systems Security, Local Area Networks, Firewall, Windows PowerShell, Hardening, Threat Detection, Linux, Penetration Testing, Network Architecture, Wireless Networks, Vulnerability Assessments, System Configuration, IT Automation, Encryption, Network Analysis, Public Key Infrastructure
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Virtualization, Augmented and Virtual Reality (AR/VR), Cloud Computing Architecture, Virtual Machines, Cloud Computing, Firewall, Network Architecture, Virtual Private Networks (VPN), Mobile Security, Cloud Security, Wireless Networks, Network Protocols, Peripheral Devices
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Threat Detection, Anomaly Detection, Network Security, General Networking, Network Monitoring, Network Troubleshooting, Real Time Data, Security Strategy, Network Analysis, Network Protocols, Data Capture
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Cloud Computing Architecture, Cloud Security, Vulnerability Assessments, Cyber Threat Intelligence, Zero Trust Network Access, Cybersecurity, Threat Modeling, Network Security, Infrastructure Security, Threat Detection, Mobile Security, Disaster Recovery, Authentications
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Microsoft Azure, Network Troubleshooting, Network Security, Network Architecture, Network Administration, Software-Defined Networking, Wide Area Networks, Hardening, Virtual Private Networks (VPN), Network Infrastructure, Network Routing, Private Cloud
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Assessments, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Malware Protection, Penetration Testing, Exploitation techniques, Threat Detection, Network Security, Information Systems Security, Security Awareness, Human Factors (Security), Lightweight Directory Access Protocols, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Endpoint Security, Endpoint Detection and Response, Multi-Factor Authentication, Network Security, Information Systems Security, Patch Management, Network Monitoring, Data Security, Malware Protection, Mobile Security, Authorization (Computing), Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Incident Response, Network Security, Vulnerability Scanning, Computer Security Incident Management, Security Management, Penetration Testing, Cybersecurity, Authentications, Vulnerability Assessments, Encryption, Firewall, Identity and Access Management, Hardening, Threat Detection, Disaster Recovery, Public Key Infrastructure, Mobile Security, Risk Management Framework, Risk Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Security, Disaster Recovery, Network Administration, Authentications, Vulnerability Assessments, Computer Networking, Network Infrastructure, Wireless Networks, Cybersecurity, Network Monitoring, Local Area Networks, Vulnerability Management, Telecommunications, Network Protocols, Network Switches, Network Routing, Communication Systems, Cryptography, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon Web Services, Distributed Denial-Of-Service (DDoS) Attacks, Infrastructure Security, Cloud Security, Network Security, AWS Identity and Access Management (IAM), Application Security, Firewall, Amazon Elastic Compute Cloud, Endpoint Security, Vulnerability Management, Amazon CloudWatch
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Infrastructure Security, Vulnerability Scanning, Network Security, Amazon Web Services, Firewall, Vulnerability Assessments, Network Infrastructure, Virtual Private Networks (VPN), Security Controls, Cloud Security, Endpoint Security, Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing
Intermediate · Course · 1 - 4 Weeks

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