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.

Cisco Learning and Certifications
Skills you'll gain: Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Malware Protection, Network Monitoring, Network Administration, TCP/IP, Network Infrastructure, Infrastructure Security, Intrusion Detection and Prevention, Network Protocols, Load Balancing, Firewall, Vulnerability Assessments, General Networking, Authorization (Computing), Web Applications, Authentications
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Hardening, Network Protocols, Cloud Security, Network Architecture, Intrusion Detection and Prevention, TCP/IP, Vulnerability Assessments, Computer Networking, Cybersecurity, Network Infrastructure, Firewall, Cloud Computing, Virtual Private Networks (VPN), Encryption
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Distributed Denial-Of-Service (DDoS) Attacks, Incident Response, Network Architecture, Network Security, Computer Security Incident Management, Intrusion Detection and Prevention, Incident Management, Network Protocols, Threat Detection, Event Monitoring, Threat Management, Network Infrastructure, Security Controls, Cybersecurity, System Monitoring, Operating Systems, Linux, Bash (Scripting Language), Databases
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Networking Hardware, TCP/IP, Network Security, Network Protocols, Endpoint Detection and Response, Network Routing, Cybersecurity, Local Area Networks, Dynamic Host Configuration Protocol (DHCP), Firewall, General Networking, Information Systems Security, Intrusion Detection and Prevention, Endpoint Security, Network Infrastructure, Network Planning And Design, Wireless Networks, Security Information and Event Management (SIEM), Network Analysis, Data Loss Prevention
Intermediate · Course · 1 - 3 Months

ISC2
Skills you'll gain: Network Security, Cybersecurity, Cyber Attacks, Infrastructure Security, Threat Detection, Computer Networking, Data Centers, General Networking, Threat Management, Network Planning And Design, Firewall, Network Protocols, Cloud Computing, TCP/IP, Encryption
Beginner · Course · 1 - 3 Months

Fortinet, Inc.
Skills you'll gain: Firewall, Virtual Private Networks (VPN), Network Troubleshooting, Network Routing, Network Security, Intrusion Detection and Prevention, Authentications, Network Monitoring, Event Monitoring, Network Administration, Security Information and Event Management (SIEM), Security Engineering, Network Infrastructure, Network Performance Management, Enterprise Security, Network Architecture, Application Security, Cybersecurity, Computer Security, Cyber Security Strategy
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Incident Response, Cyber Threat Hunting, Computer Security Incident Management, Intrusion Detection and Prevention, Cyber Threat Intelligence, Continuous Monitoring, Threat Detection, Cloud Security, Disaster Recovery, Threat Management, Firewall, Security Management, Network Security, Cybersecurity, Network Monitoring, Security Strategy, Security Controls, Information Systems Security, Infrastructure Security, Cloud Management
Advanced · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Public Key Infrastructure, Cybersecurity, Application Security, Data Security, Firewall, Cyber Attacks, Data Encryption Standard, Penetration Testing, Network Security, Information Assurance, Encryption, Risk Management Framework, Advanced Encryption Standard (AES), Intrusion Detection and Prevention, Vulnerability Scanning, Information Systems Security, Secure Coding, Security Controls, Exploitation techniques
Intermediate · Specialization · 3 - 6 Months

Palo Alto Networks
Skills you'll gain: Zero Trust Network Access, Network Security, Endpoint Security, General Networking, TCP/IP, Cybersecurity, Network Infrastructure, Firewall, Virtual Private Networks (VPN), OSI Models, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Encryption, Authentications, Network Analysis, Software As A Service
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Network Security, OSI Models, TCP/IP, Threat Modeling, Network Protocols, Computer Networking, Cybersecurity, Application Security, Network Architecture, Cryptographic Protocols, Vulnerability Assessments, Network Infrastructure, Network Routing
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: TCP/IP, Local Area Networks, Routing Protocols, Network Routing, Digital Communications, OSI Models, Network Protocols, Communication Systems, Dynamic Host Configuration Protocol (DHCP), Network Planning And Design, Network Security, Network Architecture, General Networking, Computer Networking, Network Infrastructure, Network Performance Management, Wireless Networks, Telecommunications, Software-Defined Networking, Algorithms
Intermediate · Specialization · 3 - 6 Months
Network security courses on Coursera offer insights and practical skills to protect digital information and maintain secure networks:
Network security courses on Coursera are structured to accommodate learners at various levels:
Coursera provides a variety of credentials in network security:
These credentials are designed to enhance your professional profile and support your career advancement in the field of network security.‎
Studying network security on Coursera can prepare you for a range of roles focused on protecting organizational assets and infrastructure: