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: Routing Protocols, Network Monitoring, Network Performance Management, Virtual Private Networks (VPN), Open Shortest Path First (OSPF), Network Routing, Network Troubleshooting, Network Security, Border Gateway Protocol, Network Protocols, Network Engineering, Multiprotocol Label Switching, Network Infrastructure, Wide Area Networks, Virtual Networking, Authentications, Authorization (Computing)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Penetration Testing, Exploit development, Exploitation techniques, Security Testing, Brute-force attacks, Vulnerability Assessments, Authentications, Wireless Networks, Network Security, Linux, Linux Commands, Analytical Skills, Encryption, Microsoft Windows, Data Persistence
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Metasploit, Brute-force attacks, System Configuration, General Networking, Network Security, Penetration Testing, Wireless Networks, Exploitation techniques, Intrusion Detection and Prevention, Linux, Vulnerability Scanning, Linux Commands, Encryption, Network Analysis, Software Installation, Virtual Machines
Intermediate · Course · 1 - 3 Months

Check Point Software Technologies Ltd.
Skills you'll gain: Threat Management, Threat Detection, Security Controls, Cyber Security Policies, Intrusion Detection and Prevention, Network Troubleshooting, Identity and Access Management, Firewall, Security Management, Cryptographic Protocols, Infrastructure Security, Network Administration, Public Key Infrastructure, Active Directory, Patch Management, System Configuration, Technical Support and Services, Software Installation, Package and Software Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Exploitation techniques, Cyber Security Assessment, Security Testing, Vulnerability Assessments, Mobile Security, Cloud Security, Network Security
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploitation techniques, Network Security, Intrusion Detection and Prevention, Hardening, Local Area Networks, Threat Detection, General Networking, Vulnerability Management, System Configuration, Linux Administration, Authentications, Software Installation, Virtual Machines, Network Analysis, Virtualization
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, Cloud Infrastructure, IT Security Architecture, Security Controls, Authentications, Authorization (Computing), Network Protocols
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Management, Microsoft Azure, Cloud Security, Threat Detection, Key Management, Cloud Management, Security Controls, Data Security, Security Information and Event Management (SIEM), Data Structures, Continuous Monitoring, Event Monitoring, Query Languages
Intermediate · 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, Virtual Networking, Network Architecture, Network Administration, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Troubleshooting, System Configuration, Scalability
Intermediate · Course · 1 - 3 Months

Mixed · 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, Incident Management, Cybersecurity, Event Monitoring, Network Security, Authentications, Application Security, Secure Coding, IT Security Architecture, Authorization (Computing), Cyber Security Assessment, Role-Based Access Control (RBAC), DevSecOps, Endpoint Security, Vulnerability Assessments, Infrastructure Security, Security Testing
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Android Development, Key Management, Exploit development, Android (Operating System), Secure Coding, Mobile Security, Data Security, Application Security, Data Loss Prevention, Network Security, Exploitation techniques, Memory Management, File Systems
Mixed · Course · 1 - 4 Weeks