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: Cryptography, Network Security, Cryptographic Protocols, OSI Models, Public Key Infrastructure, Cybersecurity, Key Management, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Local Area Networks, Authentications, Quantum computing
★ 4.8 (12) · Advanced · Course · 1 - 4 Weeks

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

Skills you'll gain: Cyber Threat Intelligence, MITRE ATT&CK Framework, Hardening, Cyber Threat Hunting, Operating System Administration, Exploitation techniques, Linux Commands, Intrusion Detection and Prevention, Cyber Operations, Linux, Cybersecurity, Cyber Security Strategy, Threat Detection, Network Security, Network Monitoring, Operating Systems, Cyber Attacks, Cyber Engineering, Network Administration, Security Awareness
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Security, Role-Based Access Control (RBAC), Cybersecurity, Firewall, Network Monitoring, Authentications, Virtual Private Networks (VPN), Computer Networking, Authorization (Computing), Intrusion Detection and Prevention, Identity and Access Management, Security Controls, Encryption, Remote Access Systems, Cryptographic Protocols, Group Policy
★ 4.7 (7) · Beginner · Course · 1 - 3 Months

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

Check Point Software Technologies Ltd.
Skills you'll gain: Virtual Private Networks (VPN), Threat Management, Network Security, Firewall, Threat Detection, Intrusion Detection and Prevention, Disaster Recovery, Remote Access Systems, Network Administration, Data Integrity, Network Monitoring, Cyber Security Policies, Security Controls, System Configuration, Network Troubleshooting, Security Management, System Monitoring, Active Directory
Beginner · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Network Security, Virtual Private Networks (VPN), Microsoft Azure, Firewall, Network Engineering, Network Administration, Virtual Networking, Application Security, Remote Access Systems, Cloud Security, Identity and Access Management, Infrastructure Security, Web Applications, Load Balancing
Intermediate · Course · 1 - 4 Weeks

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 Security, Virtual Private Networks (VPN), Authentications, Firewall, Authorization (Computing), Computer Security, Remote Access Systems, Cybersecurity, General Networking, Network Monitoring, Identity and Access Management, Security Controls, IT Automation, Software-Defined Networking, Wireless Networks, Dynamic Host Configuration Protocol (DHCP), Virtual Local Area Network (VLAN), Network Routers, Network Routing, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, OSI Models, Security Controls, General Networking, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Distributed Denial-Of-Service (DDoS) Attacks, Network Infrastructure, System Configuration, Network Architecture, Intrusion Detection and Prevention, Hardening, Remote Access Systems, Authentications
★ 4.6 (42) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Monitoring, Network Security, Incident Response, Anomaly Detection, Network Analysis, Digital Forensics, Cyber Security Assessment, Network Protocols, Threat Detection, Technical Communication, Distributed Denial-Of-Service (DDoS) Attacks, Computer Security, Cybersecurity
★ 4.7 (20) · Intermediate · Course · 1 - 3 Months

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