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, Vulnerability Assessments, Network Security, Network Protocols, Security Testing, Exploitation techniques, Intrusion Detection and Prevention, File Transfer Protocol (FTP), Network Analysis, Firewall, General Networking, Extensible Markup Language (XML), Scripting, Software Installation, Performance Tuning
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Cyber Threat Intelligence, MITRE ATT&CK Framework, Network Security, Cyber Threat Hunting, Cyber Security Strategy, Threat Detection, Cybersecurity, Threat Management, Cyber Security Assessment, Operating System Administration, IT Security Architecture, Cyber Attacks, Intrusion Detection and Prevention, Cyber Engineering, Malware Protection, Vulnerability Management, Vulnerability Assessments, Incident Response, Network Monitoring, Incident Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Administration, Network Troubleshooting, Network Monitoring, Network Security, Hardening, Network Performance Management, Software-Defined Networking, Endpoint Security, IT Automation, Firewall, JSON, Infrastructure Security, Security Controls, Command-Line Interface, Authentications, Scripting, Network Protocols, Identity and Access Management, Scripting Languages
Intermediate · 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, Endpoint Security, General Networking, Malware Protection, Wireless Networks, Network Protocols, Public Key Infrastructure, Data Integrity
Intermediate · Course · 1 - 4 Weeks

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: 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: Network Security, Cryptography, Firewall, Cybersecurity, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Cloud Security, Cyber Attacks, Public Key Infrastructure, Human Factors (Security), Virtual Local Area Network (VLAN)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Hardening, Network Protocols, Authentications, Identity and Access Management, Encryption, Hardware Troubleshooting, Virtual Local Area Network (VLAN), Key Management, Wireless Networks
★ 4.8 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Threat Intelligence, Cybersecurity, Security Engineering, Cloud Security
Intermediate · Course · 1 - 4 Weeks

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

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

John Wiley & Sons
Skills you'll gain: Security Testing, Cyber Security Assessment, Email Security, Application Security, Secure Coding, Penetration Testing, Hardening, Vulnerability Assessments, Vulnerability Scanning, Data Security, Cybersecurity, Network Security, Security Controls, Metasploit, Information Systems Security, Infrastructure Security, Data Storage, Vulnerability Management, Mobile Security, Computer Networking
Beginner · Course · 1 - 3 Months