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, Cyber Attacks, System Monitoring, Communication Systems, 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

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, Lightweight Directory Access Protocols, Network Administration, Security Information and Event Management (SIEM), Security Engineering, Network Performance Management, Enterprise Security, Application Security, Network Infrastructure, Cybersecurity, Computer Security, Cyber Security Strategy
Intermediate · Specialization · 3 - 6 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

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, Cloud Services, AI Security, Network Monitoring, Security Strategy, Information Systems 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, Information Systems Security, Secure Coding, Security Controls, Exploitation techniques, Software Design Patterns
Intermediate · Specialization · 3 - 6 Months

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

Cisco Learning and Certifications
Skills you'll gain: Network Security, Role-Based Access Control (RBAC), Cybersecurity, Firewall, Network Monitoring, Authentications, Virtual Private Networks (VPN), Computer Networking, Authorization (Computing), Intrusion Detection and Prevention, Identity and Access Management, Security Controls, General Networking, Encryption
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, 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
Network security refers to the practices and technologies designed to protect networks, devices, and data from unauthorized access, attacks, and damage. It is crucial because as our reliance on digital communication and online services grows, so does the risk of cyber threats. Effective network security safeguards sensitive information, maintains the integrity of systems, and ensures the availability of services. In an era where data breaches and cyberattacks are increasingly common, understanding network security is essential for individuals and organizations alike.‎
A career in network security can lead to various roles, including network security analyst, cybersecurity consultant, information security manager, and network architect. These positions involve protecting an organization's network infrastructure, analyzing security threats, and implementing security measures. As businesses continue to prioritize cybersecurity, the demand for skilled professionals in this field is on the rise, offering numerous opportunities for growth and advancement.‎
To succeed in network security, you should develop a range of skills, including knowledge of firewalls, VPNs, IDS/IPS, and encryption technologies. Familiarity with networking protocols, operating systems, and security frameworks is also essential. Additionally, skills in risk assessment, incident response, and threat analysis are crucial. Continuous learning and staying updated on the latest security trends and technologies will further enhance your expertise in this dynamic field.‎
There are several excellent online courses available for those interested in network security. Notable options include the Fundamentals of Computer Network Security Specialization and the Google Network Security Specialization. These programs provide comprehensive training on various aspects of network security, from foundational concepts to advanced techniques.‎
Yes. You can start learning network security on Coursera for free in two ways:
If you want to keep learning, earn a certificate in network security, or unlock full course access after the preview or trial, you can upgrade or apply for financial aid.‎
To learn network security, start by exploring foundational concepts through online courses and resources. Engage with interactive content, participate in discussions, and practice hands-on labs to reinforce your understanding. Consider joining online communities or forums to connect with other learners and professionals in the field. Setting specific learning goals and dedicating regular time to study will help you progress effectively.‎
Network security courses typically cover a variety of topics, including network architecture, security protocols, risk management, and incident response. You may also learn about firewalls, intrusion detection systems, and encryption techniques. Advanced courses might explore into specific areas like cloud security, threat hunting, and compliance frameworks, providing a well-rounded education in the field.‎
For training and upskilling employees in network security, courses like the Advanced Network Security Specialization and the Fortinet Network Security Specialization are highly recommended. These programs are designed to equip professionals with the necessary skills to protect their organizations against evolving cyber threats and enhance overall security posture.‎