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, Network Architecture, Network Engineering, General Networking, OSI Models, Wireless Networks, Network Routing, Network Troubleshooting, Network Administration, Network Switches, Local Area Networks, System Configuration
Intermediate · Course · 1 - 4 Weeks

John Wiley & Sons
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Commands, Linux Administration, Network Troubleshooting, Linux, Network Administration, Linux Servers, Virtual Networking, Network Infrastructure, Network Protocols, Virtualization and Virtual Machines, Command-Line Interface, System Configuration, Virtualization, General Networking, Remote Access Systems, Network Security, Software Installation
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Vulnerability Scanning, Incident Response, Vulnerability Assessments, Cloud Security, Threat Management, Endpoint Security, Cyber Threat Intelligence, Risk Management, Risk Management Framework, Incident Management, Vulnerability Management, Security Management, Cyber Security Assessment, Intrusion Detection and Prevention, Threat Detection, Cloud Computing, Security Strategy, Cyber Security Strategy, Network Security, Cryptography
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Routing Protocols, Network Routing, Network Architecture, Network Planning And Design, General Networking, Computer Networking, System Programming, Data Integrity
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Mobile Security, Digital Forensics, Investigation, Mobile Development, Criminal Investigation and Forensics, Endpoint Security, Cybersecurity, iOS Development, Application Security, Cyber Security Strategy, Computer Security Incident Management, Computer Security, Data Analysis Software, Authentications, Data Integrity, Data Storage
Beginner · Course · 1 - 3 Months

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

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

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

Skills you'll gain: Email Security, Cybersecurity, Hardening, Authorization (Computing), Cyber Attacks, Security Awareness, Security Controls, Threat Management, Encryption, Data Security, Identity and Access Management, Authentications, Application Security, Endpoint Security, Threat Detection, Cryptography, Malware Protection, Patch Management, Multi-Factor Authentication
Beginner · Course · 1 - 4 Weeks

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

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Encryption, Information Systems Security, Threat Modeling, Cybersecurity, Cyber Attacks, Computer Security Incident Management, Threat Management, Application Security, Data Security, Computer Security, Security Management, Network Security, Incident Response, Data Encryption Standard, Cyber Security Policies, Cryptography, Intrusion Detection and Prevention, Security Controls, Data Integrity, Authentications
Build toward a degree
Intermediate · Course · 1 - 3 Months