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: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Cloud Security, Proxy Servers, Google Cloud Platform, Firewall, Infrastructure Security, Network Monitoring, Intrusion Detection and Prevention, Threat Detection, Identity and Access Management
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Endpoint Detection and Response, Cloud Security, Network Administration, Infrastructure Security, Encryption, Cloud Computing, Authorization (Computing), Network Architecture, Dynamic Host Configuration Protocol (DHCP), Identity and Access Management, Email Security, Application Security, Human Factors (Security), Network Infrastructure, Network Protocols, Local Area Networks, Data Security, Authentications, Malware Protection, Mobile Security
★ 4.9 (10) · Intermediate · Specialization · 1 - 3 Months

New York University
Skills you'll gain: Infrastructure Security, Cyber Security Strategy, Mobile Security, Enterprise Security, Cyber Risk, Cyber Security Policies, Cybersecurity, Cloud Security, NIST 800-53, Hybrid Cloud Computing, Security Awareness, Cloud Computing Architecture, Blockchain, Internet Of Things, Cryptography, Data Integrity
★ 4.7 (682) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Infrastructure, Cybersecurity
★ 4.8 (41) · Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Computer Security Incident Management, Linux, Network Security, Cyber Governance, IT Security Architecture, OSI Models, Incident Management, Incident Response, Security Management, Linux Commands, TCP/IP, Computer Systems, Threat Modeling, Command-Line Interface, Network Protocols, Computer Networking, Cybersecurity, Human Factors (Security), Cyber Threat Intelligence, Cyber Attacks
★ 4.8 (207) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Event Monitoring, OSI Models, Network Monitoring, Network Protocols, Cyber Threat Intelligence, Network Analysis, Network Troubleshooting, TCP/IP, Distributed Denial-Of-Service (DDoS) Attacks, Threat Detection, General Networking, Network Security, Incident Response, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, AWS Identity and Access Management (IAM), Encryption, Network Security, System Monitoring, Network Administration, Amazon Web Services, Security Controls, Cloud Security, Firewall, Network Monitoring, Network Performance Management, Governance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Communication Systems
★ 4.5 (8) · Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Penetration Testing, Network Security, Vulnerability Scanning, Wireless Networks, Cybersecurity, Exploitation techniques, Linux, Command-Line Interface, Network Analysis, Encryption, Virtual Private Networks (VPN), System Configuration, Software Installation, File Management, Virtual Machines
★ 4.8 (13) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Security, OSI Models, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, TCP/IP, Network Administration, Wireless Networks, Network Protocols, General Networking, Intrusion Detection and Prevention, Local Area Networks, Network Routers, Security Controls, Mobile Security, Authentications, Authorization (Computing)
Beginner · Course · 1 - 4 Weeks