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: Cybersecurity, Network Security, Business Continuity, Disaster Recovery, Cryptography, Encryption, Infrastructure as Code (IaC), Software-Defined Networking, Identity and Access Management, Security Controls, Computer Networking, System Monitoring, User Accounts, Authorization (Computing), Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Network Monitoring, Network Performance Management, Virtual Private Networks (VPN), Network Routing, Network Troubleshooting, Network Security, Border Gateway Protocol, TCP/IP, Network Protocols, Multiprotocol Label Switching, Network Infrastructure, Wide Area Networks, Virtual Networking, Authentications, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Brute-force attacks, General Networking, Network Administration, Network Security, Penetration Testing, Wireless Networks, Exploitation techniques, Linux, Vulnerability Scanning, Linux Commands, Encryption, Network Analysis, Command-Line Interface, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploitation techniques, Network Security, Intrusion Detection and Prevention, Local Area Networks, Threat Detection, General Networking, Linux, Linux Administration, Virtual Machines, Network Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Endpoint Security, Network Security, Cyber Attacks, Encryption, Information Systems Security, Application Security, Cyber Security Policies, Penetration Testing, Data Security, Computer Security Awareness Training, Firewall, Cryptography, Security Controls, Threat Modeling, Intrusion Detection and Prevention, Security Awareness, Mobile Security, Malware Protection, Authentications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Juniper Network Technologies, Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Border Gateway Protocol, Routing Protocols, Network Switches, Network Routing, Local Area Networks, TCP/IP, Network Architecture, Virtual Private Networks (VPN), OSI Models, Network Administration, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Troubleshooting, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Threat Management, Microsoft Azure, Cloud Security, Key Management, Data Security, Security Information and Event Management (SIEM), Data Structures, Role-Based Access Control (RBAC), Continuous Monitoring, Query Languages
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Exploitation techniques, Cyber Security Assessment, Vulnerability Assessments, Mobile Security, Open Web Application Security Project (OWASP), Cloud Security, Threat Modeling, Infrastructure Security, Application Security, Network Security, Scripting, Technical Communication
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Oracle Cloud, Oracle Databases, Cloud Computing, Data Architecture, Strategic Partnership, Cloud Security, Database Architecture and Administration, Database Management, Cloud Infrastructure, Cloud Deployment, Scalability, Data Security, Enterprise Architecture
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Open Web Application Security Project (OWASP), Security Information and Event Management (SIEM), Incident Response, Identity and Access Management, Cybersecurity, Network Security, Authentications, Application Security, Authorization (Computing), Role-Based Access Control (RBAC), DevSecOps, Vulnerability Assessments, Infrastructure Security, Vulnerability Management, Security Strategy, Security Controls, Penetration Testing, Firewall, Zero Trust Network Access
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: vSphere Networking and Storage, Virtual Networking, vSphere DRS & HA, Storage vMotion, Role-Based Access Control (RBAC), Virtual Local Area Network (VLAN), Virtual Machines, Performance Tuning, Network Switches, Security Controls, Network Troubleshooting, Infrastructure Security, Data Storage Technologies, Capacity Management
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Identity and Access Management, Cloud Security, Key Management, Network Security, Cloud Computing, Multi-Factor Authentication, Network Monitoring, Firewall, Authentications, Network Protocols, Encryption
Beginner · Course · 1 - 4 Weeks