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: Email Security, Cloud Security, Intrusion Detection and Prevention, Incident Response, Computer Security Incident Management, Incident Management, Vulnerability Management, Risk Management Framework, Malware Protection, Security Management, Threat Management, Application Security, Cloud Computing, Cybersecurity, Cyber Attacks, Disaster Recovery, Vulnerability Assessments, Threat Detection, Network Security, Risk Management
Intermediate · Specialization · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Threat Detection, Exploitation techniques, Intrusion Detection and Prevention, Event Monitoring, Computer Security Incident Management, Malware Protection, Network Analysis, Anomaly Detection, Network Security, Network Monitoring, Network Protocols
★ 4.9 (34) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Networking Hardware, Network Monitoring, OSI Models, Routing Protocols, Software-Defined Networking, Network Troubleshooting, Network Architecture, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, General Networking, Network Security, TCP/IP, Network Routing, Computer Networking, Open Shortest Path First (OSPF), Cloud Technologies, Network Infrastructure, Hardening, Network Performance Management, Authentications
★ 4.5 (17) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, Dynamic Host Configuration Protocol (DHCP), AWS Identity and Access Management (IAM), Encryption, Network Security, Routing Protocols, Virtual Networking, Network Routing, Network Architecture, Hybrid Cloud Computing, Event Monitoring, Amazon Web Services, Network Planning And Design, Security Controls, Cloud Security, Network Infrastructure, AWS CloudFormation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Network Routers, Virtual Local Area Network (VLAN), Network Protocols, Network Security, General Networking, Network Routing, Network Troubleshooting, Network Administration, Computer Networking, Open Shortest Path First (OSPF), Network Monitoring, Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Planning And Design, Border Gateway Protocol, Network Performance Management, Proxy Servers
★ 4.8 (14) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Digital Forensics, Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Risk Management, Cryptography, Cybersecurity, Risk Management Framework, Network Security, Incident Response, Threat Management, Cloud Security, Risk Analysis, Cryptographic Protocols, Cyber Attacks, Business Risk Management, Encryption, Cyber Security Policies, Cyber Threat Intelligence, Vulnerability Assessments
★ 4.4 (18) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Virtual Machines, Microsoft Azure, Infrastructure As A Service (IaaS), Cloud Infrastructure, Cloud Computing Architecture, Virtualization and Virtual Machines, Cloud Deployment, Firewall, Cloud Computing, Network Security, Virtual Networking, Web Servers, Network Administration, Remote Access Systems, Application Deployment
★ 4.5 (223) · Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Virtual Networking, Azure Active Directory, Identity and Access Management, Microsoft Azure, Network Architecture, Network Troubleshooting, Virtual Machines, Network Administration, Cloud Management, Infrastructure as Code (IaC), Network Security, Windows PowerShell, Load Balancing, Security Controls, Command-Line Interface
★ 4.3 (21) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Security Management, Identity and Access Management, Application Security, Security Strategy, Secure Coding, Security Testing, Cyber Security Assessment, Security Engineering, IT Security Architecture, Security Controls, Risk Management Framework, Cybersecurity, Authentications, Software Development, Network Security, Risk Management, Infrastructure Security, Data Security, Cyber Operations, Continuous Monitoring
★ 4.2 (9) · Intermediate · Course · 1 - 3 Months

Alibaba Cloud Academy
Skills you'll gain: Cloud Security, Network Security, General Networking, Operating System Administration, Network Architecture, Data Security, Application Security, Cloud Computing, Cloud Computing Architecture, Cloud Infrastructure, Operating Systems, Linux, Security Controls, Hardening, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Management
★ 4.7 (62) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Command-Line Interface, Open Shortest Path First (OSPF), Network Monitoring, Virtual Local Area Network (VLAN), Virtual Networking, Border Gateway Protocol, Network Security, Network Performance Management, Enterprise Architecture, Virtualization, Network Architecture, Network Routing, Wireless Networks, Network Planning And Design, Infrastructure Security, Ansible, Network Infrastructure, General Networking, IT Automation
★ 4.5 (11) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cyber Threat Intelligence, Vulnerability Assessments, Incident Response, Cyber Security Assessment, Vulnerability Scanning, Cybersecurity, Threat Modeling, Threat Detection, Application Security, Malware Protection, Network Analysis, Encryption
Intermediate · Course · 3 - 6 Months