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.

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
★ 4.7 (59K) · Intermediate · Specialization · 3 - 6 Months

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Threat Management, Systems Development, Security Management, Information Assurance, Cryptographic Protocols, Security Awareness, Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Cyber Security Policies, Threat Detection, ISO/IEC 27001, Data Security, Security Controls, Cyber Threat Intelligence, Network Security
★ 4.8 (38) · Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Data Security, Threat Detection, Cybersecurity, Cyber Attacks, Cyber Risk, Data Management, Security Controls, Cyber Governance, Security Management, Encryption, Security Software, Cryptography, Data Sharing, Security Strategy, Network Security, Data Access, Risk Modeling, Statistical Methods
★ 4.2 (6) · Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Computer Networking, Network Troubleshooting, Network Administration, TCP/IP, General Networking, Network Architecture, Routing Protocols, Network Protocols, Networking Hardware, OSI Models, Network Routers, Network Routing, Network Infrastructure, Dynamic Host Configuration Protocol (DHCP), Network Security, Wireless Networks, Network Model, Data Integrity
★ 4.7 (53K) · Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: DevSecOps, Secure Coding, Cryptography, Application Security, Security Testing, IT Security Architecture, Cyber Threat Intelligence, Cyber Risk, Encryption, Network Security, AI Integrations, DevOps, Cybersecurity, CI/CD, Security Awareness, Cloud Security, Software Development, Security Controls, Artificial Intelligence and Machine Learning (AI/ML), Software Architecture
★ 4.7 (27) · Beginner · Specialization · 3 - 6 Months

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
★ 4.6 (33) · Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Wide Area Networks, TCP/IP, Network Routing, Network Routers, Network Infrastructure, Local Area Networks, Computer Networking, Network Protocols, Telecommunications, Service Level
Beginner · Course · 1 - 3 Months

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

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Identity and Access Management, Data Loss Prevention, Distributed Denial-Of-Service (DDoS) Attacks, Prompt Engineering, Kubernetes, Prompt Engineering Tools, Cloud Security, Containerization, Prompt Patterns, OAuth, Cloud Platforms, Cloud Storage, Cloud Services, Application Deployment, Security Controls, Threat Management, Application Security, Data Security
★ 4.7 (50K) · Intermediate · Specialization · 3 - 6 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
★ 4.5 (91) · Intermediate · Guided Project · Less Than 2 Hours

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