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

Skills you'll gain: Cybersecurity, General Networking, Cyber Attacks, Endpoint Security, Infrastructure Security, Network Routing, Threat Detection, Computer Security, Network Administration, Firewall, Endpoint Detection and Response, Wireless Networks, Information Technology Infrastructure Library, IT Service Management
Intermediate · Course · 1 - 4 Weeks

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

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: Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Computer Security Incident Management, Exploitation techniques
★ 4.9 (10) · Beginner · Course · 1 - 4 Weeks

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

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

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

Skills you'll gain: Infrastructure Security, Cyber Risk, Network Infrastructure, Security Awareness, Data Integrity, Distributed Computing, Verification And Validation
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: OSI Models, Linux Administration, Network Troubleshooting, Linux, Linux Commands, Network Administration, Linux Servers, Hardening, Network Monitoring, General Networking, Remote Access Systems, Network Performance Management, Network Protocols, TCP/IP, Network Security, Network Support, Firewall, Security Controls, System Monitoring, Network Analysis
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Virtual Private Networks (VPN), Cyber Security Policies, Security Controls, Infrastructure Security, Cybersecurity, Security Management, Identity and Access Management, Authentications, Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Enterprise Security, Network Switches, Authorization (Computing), Command-Line Interface
Beginner · Course · 1 - 4 Weeks