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: Routing Protocols, Network Protocols, Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Network Infrastructure, TCP/IP, Border Gateway Protocol, Computer Networking, General Networking, Wireless Networks, Network Routing, Network Troubleshooting, Network Administration, Network Switches, Local Area Networks
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Mobile Security, Investigation, Mobile Development, Apple iOS, Criminal Investigation and Forensics, Android (Operating System), Application Security, Legal Proceedings, Cybersecurity, File Systems, Malware Protection, Computer Security, Secure Coding, Computer Security Incident Management, Cloud Security, Security Strategy, Analysis, Encryption, Debugging, Disaster Recovery
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Cybersecurity, Cyber Attacks, Incident Response, Security Management, Network Security, Security Information and Event Management (SIEM), Security Controls, Identity and Access Management, Cryptography, Threat Detection, Data Security, Computer Security, Encryption, Personally Identifiable Information, Data Governance, Firewall, Vulnerability Assessments, User Accounts, Authorization (Computing), Risk Management
Intermediate · Course · 3 - 6 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Services, Cloud Computing, Virtual Private Networks (VPN), General Networking, Network Administration, DevOps
Intermediate · Project · Less Than 2 Hours

Coursera
Skills you'll gain: Virtual Private Networks (VPN), Amazon Web Services, Cloud Computing Architecture, Cloud Infrastructure, Virtual Machines, Network Architecture, Amazon Elastic Compute Cloud
Beginner · Guided Project · Less Than 2 Hours

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, Network Engineering, Network Architecture, Scripting, Application Programming Interface (API), Data Modeling, General Networking, Network Planning And Design, Automation, Network Infrastructure, Linux Commands, Python Programming, Network Protocols, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Administration, Virtual Local Area Network (VLAN), General Networking, Network Architecture, TCP/IP, Local Area Networks, Computer Networking, Command-Line Interface, Network Infrastructure, Wireless Networks, Network Security, Network Switches, OSI Models, Dynamic Host Configuration Protocol (DHCP), Network Routing, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Ansible, YAML, Network Architecture, Network Administration, Infrastructure as Code (IaC), Network Infrastructure, General Networking, Automation, System Configuration, Software Documentation, Configuration Management, Python Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Education Software and Technology, Microsoft Office
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: TCP/IP, Network Architecture, Network Routers, Networking Hardware, General Networking, Network Security, Dynamic Host Configuration Protocol (DHCP), Network Infrastructure, Network Troubleshooting, Computer Networking, Network Protocols, Network Switches
Beginner · Course · 3 - 6 Months

Akamai Technologies, Inc.
Skills you'll gain: Routing Protocols, OSI Models, Remote Access Systems, Network Architecture, TCP/IP, General Networking, Network Protocols, Network Troubleshooting, Computer Networking, Networking Hardware, Network Administration, Network Security, Network Infrastructure, Network Model, Virtual Private Networks (VPN), Wireless Networks, Network Routers, Network Routing, Dynamic Host Configuration Protocol (DHCP), Intrusion Detection and Prevention
Beginner · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Network Architecture, Network Planning And Design, Amazon Web Services, Wide Area Networks, Virtual Private Networks (VPN), Network Security, Hybrid Cloud Computing, Cloud Computing Architecture, General Networking
Beginner · Course · 1 - 4 Weeks