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

Skills you'll gain: Network Infrastructure, Networking Hardware, Cybersecurity, Digital Communications
★ 4.8 (62) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Network Security, Cloud Security, Cyber Attacks, Information Systems Security, Application Security, OSI Models, Cryptography, Data Security, Cryptographic Protocols, Encryption, Network Administration, Endpoint Security, General Networking, Malware Protection, Cloud Computing, Wireless Networks, Network Protocols, Public Key Infrastructure, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, AWS Identity and Access Management (IAM), Encryption, Network Security, Event Monitoring, Amazon Web Services, Security Controls, Cloud Security, IT Security Architecture, Cryptography, Network Monitoring, Network Performance Management, Cyber Security Policies, Security Requirements Analysis, Governance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Network Administration, Cryptography, Firewall, Cryptographic Protocols, Cybersecurity, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Cloud Security, IT Security Architecture, Cyber Attacks, Security Controls, Public Key Infrastructure, Network Monitoring, Encryption, Network Planning And Design, Human Factors (Security), Local Area Networks, Virtual Local Area Network (VLAN), Network Switches
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Network Security, Encryption, OSI Models, IT Security Architecture, Network Performance Management, Network Architecture, General Networking, Network Planning And Design, Communication Systems, TCP/IP, Remote Access Systems, Network Infrastructure, Network Protocols, Wireless Networks, Virtual Private Networks (VPN), Virtual Networking, Endpoint Security, Cloud Security, Software-Defined Networking
★ 4.8 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Endpoint Security, Hardening, Virtual Private Networks (VPN), Firewall, IT Security Architecture, Network Administration, Cloud Deployment, Cloud Security, Cybersecurity, Cyber Attacks, Infrastructure Security, Computer Security, Role-Based Access Control (RBAC), Cloud Computing, Authorization (Computing), Security Controls, Cryptographic Protocols, Identity and Access Management, Cloud Solutions
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: MITRE ATT&CK Framework, Cyber Threat Intelligence, Cybersecurity, Penetration Testing, Cyber Security Assessment, Cyber Security Strategy, Security Controls, Cyber Attacks, IT Security Architecture, Security Testing, Application Security, Endpoint Security, Network Security, Infrastructure Security, Security Software, AI Security, Cyber Risk, Data Security, Network Monitoring
★ 4.7 (50) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Monitoring, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Routing Protocols, Virtual Private Networks (VPN), Security Controls, OSI Models, Dynamic Host Configuration Protocol (DHCP), Proxy Servers
★ 4.8 (17) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Distributed Denial-Of-Service (DDoS) Attacks, Hardening, Network Protocols, Network Performance Management, Authentications, Identity and Access Management, Encryption, Hardware Troubleshooting, Virtual Local Area Network (VLAN), Multi-Factor Authentication, Key Management, Wireless Networks
★ 4.8 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Mobile Security, System Monitoring, Network Monitoring, Security Controls, Internet Of Things, Wireless Networks, Application Security, Information Systems Security, Authorization (Computing), Cybersecurity, Identity and Access Management, Cyber Attacks, Authentications, Cloud Security, TCP/IP, Information Assurance, Network Protocols, Cloud Services, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Information and Event Management (SIEM), Cloud Security, Event Monitoring, Business Continuity Planning, Cloud Management, System Monitoring, Network Security, Continuous Monitoring, Business Continuity, Disaster Recovery, Incident Response, Cloud Computing, Cloud Services, Zero Trust Network Access, Computer Security Incident Management, Network Administration, Vulnerability Management, Patch Management, Clinical Monitoring, Configuration Management
Intermediate · Course · 1 - 4 Weeks