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 Troubleshooting, Network Monitoring, Network Security, Firewall, Ansible, Network Performance Management, Network Infrastructure, Network Protocols, Security Controls, Event Monitoring, Puppet (Configuration Management Tool), IT Automation, Chef (Configuration Management Tool), Real Time Data, JSON, Automation, Identity and Access Management, Restful API, Application Programming Interface (API)
★ 4.7 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Penetration Testing, Intrusion Detection and Prevention, Vulnerability Assessments, Wireless Networks, Encryption, Application Security, Exploitation techniques, Web Applications, Cloud Security, Internet Of Things
★ 4.9 (19) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Linux Commands
Beginner · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Network Security, Mobile Security, Public Key Infrastructure, Cryptography, Security Controls, Cryptographic Protocols, Cybersecurity, Authorization (Computing), Encryption, Authentications, Identity and Access Management, Wireless Networks, Cloud Computing, Cloud Security, Virtual Machines, Network Monitoring, Data Security, Internet Of Things, Virtualization and Virtual Machines
★ 4.6 (124) · 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 (27) · Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Cyber Attacks, Endpoint Security, Infrastructure Security, Cloud Infrastructure
★ 5 (10) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Amazon Web Services, Distributed Denial-Of-Service (DDoS) Attacks, Infrastructure Security, Cloud Security, Network Security, Application Security, Firewall, Amazon Elastic Compute Cloud, Endpoint Security, Data Security, Security Controls, Network Monitoring, Vulnerability Management, Threat Detection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Intrusion Detection and Prevention, Command-Line Interface, Cybersecurity, IT Security Architecture, Information Systems Security, Local Area Networks, Cyber Attacks, Computer Security, Linux Commands, Windows PowerShell, Security Controls, Hardening, Vulnerability Scanning, Endpoint Security, Threat Detection, Linux, Network Architecture, Wireless Networks, Network Analysis
★ 4.6 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, TCP/IP, Cybersecurity, Human Factors (Security), Computer Networking, Hardware Troubleshooting, Network Performance Management, Command-Line Interface, Authentications, Wireless Networks
★ 4.6 (7) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Disaster Recovery, General Networking, Network Engineering, Network Administration, Authentications, Network Architecture, Vulnerability Assessments, Computer Networking, Network Infrastructure, Computer Security, Wireless Networks, Cybersecurity, Information Systems Security, Network Monitoring, Local Area Networks, Vulnerability Management, Network Performance Management, Telecommunications, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Threat Management, Threat Detection, Information Technology Operations, Wireless Networks, Network Security, Information Systems Security, Mobile Security, Security Controls, Virtual Private Networks (VPN), Telecommunications, Network Troubleshooting, Document Management, Malware Protection, Augmented and Virtual Reality (AR/VR), Emerging Technologies, Change Control, Multi-Factor Authentication, System Configuration, Network Protocols
★ 4.7 (16) · Advanced · Course · 1 - 3 Months