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: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Network Troubleshooting, Proxy Servers, Network Monitoring, Cloud Security, Intrusion Detection and Prevention, Firewall, Google Cloud Platform, Threat Detection, Security Controls, Hardening
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Network Security, Threat Detection, Proxy Servers, Network Monitoring, Intrusion Detection and Prevention, Network Troubleshooting, Firewall, Google Cloud Platform, Security Controls, Identity and Access Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, AWS Identity and Access Management (IAM), Encryption, Network Security, Network Administration, Amazon Web Services, Cloud Security, IT Security Architecture, Network Monitoring, Network Performance Management, Security Requirements Analysis, Governance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, OSI Models, TCP/IP, Vulnerability Assessments, Network Security, Network Protocols, Security Testing, Exploitation techniques, Intrusion Detection and Prevention, File Transfer Protocol (FTP), Network Analysis, Firewall, General Networking, Extensible Markup Language (XML), Scripting, Software Installation, Performance Tuning
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Network Security, Encryption, OSI Models, IT Security Architecture, Network Architecture, Computer Networking, General Networking, Communication Systems, Remote Access Systems, TCP/IP, Network Protocols, Wireless Networks, Virtual Networking, Endpoint Security, Cloud Security, Software-Defined Networking
★ 4.8 (14) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Administration, Network Troubleshooting, Network Monitoring, Network Security, Hardening, Network Performance Management, Software-Defined Networking, Endpoint Security, IT Automation, Firewall, JSON, Infrastructure Security, Security Controls, Command-Line Interface, Authentications, Scripting, Network Protocols, Identity and Access Management, Scripting Languages
Intermediate · Course · 1 - 4 Weeks

★ 4.8 (20) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: OSI Models, Linux Administration, Network Troubleshooting, Linux, Linux Commands, Network Administration, Linux Servers, Hardening, Network Monitoring, General Networking, Remote Access Systems, Network Performance Management, Network Protocols, TCP/IP, Network Security, Firewall, Security Controls, Network Analysis, Authentications
Advanced · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Cybersecurity, Cyber Attacks, Network Security, Business Continuity Planning, Cryptography, Security Architecture Review, Disaster Recovery, Business Continuity, IT Security Architecture, Telecommunications, Network Administration, Law, Regulation, and Compliance, NIST 800-53, Security Controls, Data Security, Encryption, Regulation and Legal Compliance, Bash (Scripting Language), Systems Administration, Governance Risk Management and Compliance
★ 4.5 (26) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Attacks, Cloud Applications, Cloud Infrastructure
★ 4.9 (14) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Wide Area Networks, Network Security, Routing Protocols, Threat Detection, Threat Management, Network Administration, Multiprotocol Label Switching, Computer Networking, Network Routing, Virtual Private Networks (VPN), Network Troubleshooting, Network Switches, Network Protocols
★ 4.6 (24) · Advanced · Course · 3 - 6 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Intrusion Detection and Prevention, Wireless Networks, Encryption, Application Security, Exploitation techniques, Web Applications, Cloud Security, Internet Of Things
★ 4.9 (20) · Intermediate · Course · 1 - 3 Months