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.

Packt
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Data Security, Cybersecurity, Cyber Attacks, Cyber Security Assessment, Cryptography, Web Applications, Security Awareness, Vulnerability Management, Encryption, Authentications, Authorization (Computing), PHP (Scripting Language)
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Security Strategy, Cyber Governance, Threat Management, Security Management, Cyber Risk, Compliance Management, Risk Management, Regulatory Compliance, Cyber Security Policies, Cybersecurity, Law, Regulation, and Compliance, Cyber Security Strategy, Governance, Security Controls, Procedure Development, Regulation and Legal Compliance, Program Standards
Mixed · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Wireless Networks, Network Infrastructure, Virtual Networking, Wide Area Networks, Network Planning And Design, Software-Defined Data Center (SDDC), Local Area Networks, Network Protocols, Software-Defined Networking, Computer Networking, Service Level, Telecommunications
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Virtual Networking, Linux Administration, Network Troubleshooting, Linux, Kubernetes, Network Architecture, Network Administration, Linux Commands, Computer Networking, Network Engineering, Linux Servers, Docker (Software), TCP/IP, Network Routers, Network Routing, Routing Protocols, Containerization, Network Switches, Firewall, Virtualization
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Administration, Network Troubleshooting, System Configuration, TCP/IP, Computer Networking, Local Area Networks, General Networking, Virtual Environment, Servers, Networking Hardware, Network Engineering, Simulations, Configuration Management, Information Technology, Verification And Validation
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Security Controls, Cybersecurity, Encryption, Cyber Attacks, Information Systems Security, Cryptographic Protocols, Threat Management, Vulnerability Assessments, Vulnerability, Cyber Security Assessment, Vulnerability Scanning, Threat Detection, Cloud Security, Key Management, Asset Protection, Security Awareness, Gap Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Embeddings, PyTorch (Machine Learning Library), Feature Engineering, Artificial Neural Networks, Image Analysis, Deep Learning, Convolutional Neural Networks, Network Model, Model Training, Computer Vision
Advanced · Guided Project · Less Than 2 Hours

University of California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Encryption, Application Security, Penetration Testing, Vulnerability Assessments, Data Security, Exploitation techniques, Security Controls, Authentications, Data Validation
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Open Web Application Security Project (OWASP), Penetration Testing, Metasploit, Security Testing, Security Strategy, Vulnerability Assessments, Cyber Security Assessment, Security Management, Vulnerability Scanning, Cyber Threat Intelligence, Information Systems Security, Exploitation techniques, Security Controls, Data Sharing
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Infrastructure, Identity and Access Management, Google Cloud Platform, Prompt Engineering, Kubernetes, Application Deployment, Cloud Storage, Network Monitoring, Infrastructure As A Service (IaaS), Prompt Engineering Tools, Containerization, Cloud Deployment, Virtual Networking, Cloud Computing, Network Architecture, Cloud Solutions, Virtual Private Networks (VPN), Site Reliability Engineering, Infrastructure as Code (IaC), Cloud Security
Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Cloud Infrastructure, Cloud Management, Cloud Computing, Network Performance Management, Network Monitoring, Google Cloud Platform, Virtual Networking, Command-Line Interface, Virtual Machines, Virtual Private Networks (VPN), Performance Testing
Beginner · Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Amazon Elastic Compute Cloud, Identity and Access Management, Cloud Computing, User Provisioning, Cloud Management, Cloud Infrastructure, Cloud Security, Load Balancing, User Accounts, Cloud API, Cloud Services, Linux Servers, Apache, Web Servers, Linux Administration, System Configuration, Command-Line Interface, Debugging
Beginner · Course · 1 - 4 Weeks