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, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Vulnerability Assessments, Hardware Architecture, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, Authentications, Network Monitoring, TCP/IP, Network Analysis
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Continuous Monitoring, Cloud Security, Disaster Recovery, Network Security, Cloud Services, AI Security, Security Strategy, Cloud Computing Architecture, Cloud Computing, Hybrid Cloud Computing, Infrastructure Security, Cybersecurity, Security Management, Threat Detection, Cloud Management, Encryption, Identity and Access Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Network Administration, Network Routing, Cloud Security, Firewall, Virtual Networking, Wide Area Networks, Network Architecture, Network Monitoring, Security Controls, Encryption, Threat Detection
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Identity and Access Management, Virtual Networking, Network Monitoring, Google Cloud Platform, Network Administration, Virtual Private Networks (VPN), General Networking, Network Troubleshooting, Network Security, Network Architecture, Cloud Computing, Cloud Security, Firewall, Cloud Management, Key Management, Load Balancing, DevOps, Encryption, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: General Networking, Network Architecture, TCP/IP, Threat Management, Cybersecurity, Network Security, Threat Detection, Network Routers, Cyber Attacks, Network Switches, Diagram Design, Firewall, Security Strategy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Docker (Software), Containerization, Linux, Network Troubleshooting, Linux Servers, Ansible, Kubernetes, Authentications, Infrastructure as Code (IaC), Network Administration, System Configuration, Remote Access Systems, Multi-Factor Authentication, Network Protocols, Network Security, Security Controls, Firewall, Web Servers, Encryption
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Exploitation techniques, Vulnerability Assessments, Intrusion Detection and Prevention, Brute-force attacks, Application Security, Network Security, Virtual Local Area Network (VLAN), Cloud Security, API Testing, Wireless Networks
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Intrusion Detection and Prevention, Command-Line Interface, Cybersecurity, Information Systems Security, Local Area Networks, Firewall, Windows PowerShell, Hardening, Threat Detection, Linux, Penetration Testing, Network Architecture, Wireless Networks, Vulnerability Assessments, System Configuration, IT Automation, Encryption, Network Analysis, Public Key Infrastructure
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Software-Defined Networking, Network Architecture, Network Planning And Design, Wide Area Networks, Virtual Private Networks (VPN), Network Security, Network Performance Management, Network Infrastructure, Network Monitoring, Firewall, Network Routing, System Implementation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Threat Detection, Information Technology Operations, Wireless Networks, Network Security, Information Systems Security, Mobile Security, Virtual Private Networks (VPN), Network Administration, Network Troubleshooting, Document Management, Malware Protection, Augmented and Virtual Reality (AR/VR), Change Control, Authentications
Advanced · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Cybersecurity, Metasploit, Cyber Attacks, Application Security, Exploitation techniques, Network Security, Security Awareness, Malware Protection, Vulnerability Assessments, Javascript
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Network Security, Virtual Local Area Network (VLAN), Network Planning And Design, Network Architecture, Network Routers, Infrastructure Security, General Networking, Authentications, Network Switches
Beginner · Guided Project · Less Than 2 Hours