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 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

Total Seminars
Skills you'll gain: OSI Models, Network Troubleshooting, Network Protocols, Local Area Networks, Network Model, TCP/IP, General Networking, Networking Hardware, Network Architecture, Computer Networking, Network Infrastructure, Network Switches, Network Monitoring, Hardware Troubleshooting, Network Analysis
Beginner · Course · 1 - 3 Months

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

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 Troubleshooting, Network Protocols, Threat Detection
Intermediate · Course · 1 - 4 Weeks

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

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

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

Cisco Learning and Certifications
Skills you'll gain: Ansible, Devops Tools, Development Environment, Postman API Platform, Restful API, Authentications, YAML, Software Development Tools, Software Development Methodologies, Network Model, IT Automation, Software-Defined Networking, CI/CD, DevOps, Network Engineering, Network Architecture, Application Programming Interface (API), Scripting, Network Protocols, Network Routing
Beginner · Specialization · 3 - 6 Months

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

Total Seminars
Skills you'll gain: Network Infrastructure, Virtual Networking, Network Architecture, Network Security, Virtualization and Virtual Machines, Wireless Networks, Network Troubleshooting, Virtualization, Virtual Machines, Network Performance Management, Network Administration, Network Planning And Design, Network Monitoring, Data Centers, Cloud Computing, Network Support, Networking Hardware, Security Controls, Cybersecurity, Technical Documentation
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Identity and Access Management, Cryptography, AWS Identity and Access Management (IAM), Data Security, Authentications, Threat Detection, Cybersecurity, Encryption, Network Security, Data Management, Azure Active Directory, Cyber Attacks, Cyber Security Strategy, Key Management, Security Engineering, Security Management, Network Protocols, Cyber Risk, Computer Security, Security Awareness
Intermediate · Specialization · 3 - 6 Months