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: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, OSI Models, TCP/IP, Network Monitoring, Vulnerability Assessments, Network Security, Network Protocols, Vulnerability Management, Security Testing, Exploitation techniques, Intrusion Detection and Prevention, File Transfer Protocol (FTP), Network Analysis, Network Infrastructure, Firewall, Distributed Denial-Of-Service (DDoS) Attacks, Email Security, General Networking
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Vulnerability Scanning, Vulnerability Assessments, Penetration Testing, Security Testing, Network Security, Threat Detection, Network Monitoring, Network Analysis, Operating Systems
★ 4.5 (83) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Microsoft Azure, Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing, Network Security, Infrastructure Security, Firewall, Network Administration, Key Management, IT Security Architecture, Virtual Networking, Cloud Security, Infrastructure As A Service (IaaS), Cloud Computing Architecture, Cloud Infrastructure, Network Infrastructure, Virtual Private Networks (VPN), Network Architecture, Security Controls, General Networking, Network Planning And Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Firewall, Virtual Local Area Network (VLAN), Open Shortest Path First (OSPF), Virtual Networking, Network Security, TCP/IP, Network Routers, Virtual Private Networks (VPN), Network Infrastructure, Network Switches, Network Architecture, Network Administration, Dynamic Host Configuration Protocol (DHCP), Network Monitoring, Network Troubleshooting, Network Routing, Local Area Networks, Network Planning And Design, Network Performance Management
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Endpoint Detection and Response, Network Administration, Cryptographic Protocols, IT Security Architecture, Cloud Security, Data Loss Prevention, Cloud Deployment, Cyber Attacks, Security Controls, Infrastructure Security, Computer Security, Encryption, Cloud Computing, Authorization (Computing), Network Planning And Design, Identity and Access Management, System Configuration, Data Security, Authentications, Malware Protection
★ 4.9 (10) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Metasploit, Exploit development, Human Factors (Security), Active Directory, Exploitation techniques, Cyber Security Assessment, Cyber Operations, Brute-force attacks, Network Security, Security Testing, Security Awareness, Vulnerability Assessments, Vulnerability Scanning, Authentications, Infrastructure Security, Wireless Networks, Linux, Remote Access Systems, Mitigation
Advanced · Course · 1 - 3 Months

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: Network Infrastructure, Networking Hardware, Cybersecurity, Digital Communications
★ 4.8 (68) · Beginner · Course · 1 - 4 Weeks

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 (216) · Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Network Security, Computer Networking, General Networking, Authentications, Authorization (Computing), Firewall, Security Controls, Network Architecture, OSI Models, Networking Hardware, Network Protocols, Virtualization, Virtual Networking, Threat Detection, Identity and Access Management, Cloud Services, Network Planning And Design, TCP/IP, Network Infrastructure, Network Monitoring
★ 4.8 (342) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Network Security, Threat Detection, Proxy Servers, Network Monitoring, Intrusion Detection and Prevention, Network Troubleshooting, Firewall, Google Cloud Platform, Security Controls, Continuous Monitoring, Identity and Access Management, Virtual Networking, Cloud Infrastructure
Intermediate · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Network Monitoring, Network Troubleshooting, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Network Performance Management, Security Controls, Threat Detection, Firewall, Virtual Private Networks (VPN), Network Switches, Infrastructure Security, Hardening, Network Architecture, Network Analysis, Hardware Troubleshooting, Diagnostic Tests
Intermediate · Course · 1 - 3 Months