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: OSI Models, TCP/IP, Vulnerability Scanning, General Networking, Network Protocols, Network Security, Network Monitoring, Network Troubleshooting, Security Testing, Intrusion Detection and Prevention, Vulnerability Assessments, Firewall, Performance Tuning, Threat Detection, Network Analysis, Test Script Development, Scripting, System Configuration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Command-Line Interface, Open Shortest Path First (OSPF), Network Monitoring, Virtual Local Area Network (VLAN), Virtual Networking, Border Gateway Protocol, Network Security, Network Performance Management, Enterprise Architecture, Virtualization, Network Architecture, Network Routing, Network Planning And Design, Network Engineering, Infrastructure Security, Ansible, Network Infrastructure, General Networking, IT Automation
★ 4.5 (11) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Loss Prevention, Security Testing, Network Security, Cryptography, Cyber Security Assessment, Cryptographic Protocols, Security Controls, Cloud Security, Encryption, Data Security, Network Administration, Information Assurance, Identity and Access Management, Penetration Testing, Cloud Computing, Cyber Risk, Authorization (Computing), Information Privacy
★ 4.8 (16) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Network Security, Cryptographic Protocols, Data Security, Public Key Cryptography Standards (PKCS), Cyber Risk, Data Integrity, Transaction Processing
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Assessments, Vulnerability Scanning, Exploitation techniques, Cyber Security Assessment, Unix, Security Testing, Network Security, Cybersecurity, Information Systems Security, Cyber Attacks, Network Analysis, Web Applications, Virtual Machines, Web Servers
★ 4.7 (9) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cyber Security Strategy, Cyber Threat Intelligence, Threat Management, Network Model, IT Security Architecture, Exploitation techniques, Security Controls, Security Awareness, Systems Design, System Design and Implementation, Cryptography, Resilience, Service Recovery
★ 5 (6) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cyber Threat Hunting, Incident Response, Computer Security Incident Management, Cybersecurity, Network Security, Cyber Security Policies, Cyber Operations, Cyber Attacks, Cyber Security Strategy, Threat Detection, Security Controls, Cyber Security Assessment, Threat Management, Intrusion Detection and Prevention, Computer Security, Firewall, Security Information and Event Management (SIEM), Continuous Monitoring, Event Monitoring, Endpoint Security
★ 4.7 (7) · Beginner · Course · 1 - 4 Weeks

Alibaba Cloud Academy
Skills you'll gain: Relational Databases, Load Balancing, Cloud Management, Cloud Computing, Database Systems, Cloud Hosting, Database Management Systems, Database Management, Cloud Infrastructure, Cloud Platforms, Cloud Services, Cloud Computing Architecture, Public Cloud, Cloud Solutions, Cloud Security, Data Security, Servers, Cloud Deployment, Cloud Storage, Data Storage Technologies
★ 4.7 (101) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Security, Cloud Security, Intrusion Detection and Prevention, Incident Response, Computer Security Incident Management, Incident Management, Vulnerability Management, Risk Management Framework, Malware Protection, Security Management, Threat Management, Application Security, Cloud Computing, Cybersecurity, Cyber Attacks, Disaster Recovery, Vulnerability Assessments, Threat Detection, Network Security, Risk Management
Intermediate · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Security Management, Identity and Access Management, Application Security, Security Strategy, Secure Coding, Security Testing, Cyber Security Assessment, Security Engineering, IT Security Architecture, Security Controls, Risk Management Framework, Cybersecurity, Authentications, Software Development, Network Security, Risk Management, Infrastructure Security, Data Security, Cyber Operations, Continuous Monitoring
★ 4.2 (9) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, Dynamic Host Configuration Protocol (DHCP), AWS Identity and Access Management (IAM), Encryption, Network Security, Routing Protocols, Virtual Networking, Network Routing, Network Architecture, Hybrid Cloud Computing, Event Monitoring, Amazon Web Services, Network Planning And Design, Security Controls, Cloud Security, Network Infrastructure, AWS CloudFormation
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Cyber Threat Intelligence, Vulnerability Assessments, Incident Response, Cyber Security Assessment, Vulnerability Scanning, Cybersecurity, Threat Modeling, Threat Detection, Application Security, Malware Protection, Network Analysis, Encryption
Intermediate · Course · 3 - 6 Months