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: Vulnerability Assessments, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Malware Protection, Penetration Testing, Cyber Threat Intelligence, Exploitation techniques, Threat Management, Brute-force attacks, Network Security, Information Systems Security, Security Awareness, Human Factors (Security), Authentications, Network Protocols
Intermediate · Course · 1 - 3 Months

EC-Council
Skills you'll gain: Network Security, Cybersecurity, Information Assurance, Cloud Security, Security Controls, Mobile Security, Data Security, Cryptography, Public Key Infrastructure, Cyber Security Policies, Authorization (Computing), Intrusion Detection and Prevention, Infrastructure Security, Network Monitoring, Wireless Networks, Authentications, Identity and Access Management, Enterprise Security, Cloud Computing, Data Loss Prevention
Beginner · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Network Routing, Cloud Security, Firewall, Virtual Networking, Wide Area Networks, Network Architecture, Network Troubleshooting, Network Monitoring, Cryptographic Protocols, Remote Access Systems, Security Controls, Event Monitoring, Encryption, Hybrid Cloud Computing
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Hardening, Cryptographic Protocols, Cybersecurity, Encryption, Security Controls, Proxy Servers, Information Privacy, Servers, Communication Systems, Web Servers, Network Routing, Network Analysis, Cloud Hosting, Cloud Deployment
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Cryptography, Network Security, Secure Coding, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Cybersecurity, Key Management, Vulnerability Assessments, Authorization (Computing), Code Review, Dependency Analysis
Advanced · Course · 1 - 3 Months

Skills you'll gain: IT Security Architecture, Network Security, Security Architecture Review, Infrastructure Security, Enterprise Application Management, Software-Defined Networking, Application Security, Zero Trust Network Access, Security Engineering, Network Architecture, Cyber Security Strategy, Cybersecurity, Enterprise Architecture, Software Quality Assurance, Security Controls, Network Planning And Design, Cloud Security, Cryptography
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management Framework, Risk Analysis, Risk Management, Cybersecurity, Incident Management, Network Security, Incident Response, Cloud Security, Cyber Attacks, Authentications, Business Continuity Planning, Information Systems Security, Application Security, Security Management, Threat Modeling, Computer Security Incident Management, OSI Models, Threat Management, Cryptography, Vulnerability Assessments
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Virtual Private Networks (VPN), Linux Servers, Ubuntu, Network Troubleshooting, Authentications, Linux Administration, Remote Access Systems, Cryptographic Protocols, Virtual Networking, Encryption, Network Security, Linux, Network Monitoring, Network Performance Management, Linux Commands, Interoperability, Key Management
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Anomaly Detection, Malware Protection, Threat Detection, Network Analysis, AI Security, Cybersecurity, Model Evaluation, Network Security, Machine Learning Methods, Classification Algorithms, Microsoft Windows
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Infrastructure Security, Vulnerability Scanning, Network Security, Amazon Web Services, Firewall, Vulnerability Assessments, Network Infrastructure, Virtual Networking, Security Controls, Cloud Security, Vulnerability Management, Endpoint Security, Network Planning And Design, Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing
Intermediate · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Incident Response, Network Security, Vulnerability Scanning, Computer Security Incident Management, Security Management, Incident Management, Penetration Testing, Cybersecurity, Authentications, Cyber Attacks, Security Controls, Vulnerability Assessments, Encryption, Firewall, Threat Management, User Accounts, Identity and Access Management, Mobile Security, Risk Management
Beginner · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Hardening, Endpoint Security, Endpoint Detection and Response, Intrusion Detection and Prevention, Network Security, Security Controls, Wireless Networks, Application Security, Authentications, Exploitation techniques, Security Testing, Cryptographic Protocols, Security Management, Security Awareness, Security Strategy, System Configuration, Encryption
Intermediate · Course · 1 - 3 Months