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: Peripheral Devices, Virtual Private Networks (VPN), Mac OS, TCP/IP, System Configuration, Network Protocols, Network Administration, Network Support, General Networking, Operating System Administration, Remote Access Systems, Knowledge of Apple Software, Systems Administration, Cloud-Based Integration, Desktop Support, Knowledge of Apple Hardware, Hardware Troubleshooting, Data Sharing, Cloud Management
★ 4.4 (7) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Command-Line Interface, Cryptography, Cyber Security Strategy, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, IT Security Architecture, Encryption, Information Systems Security, Vulnerability Assessments, Cyber Attacks, Risk Management Framework, Multi-Factor Authentication, Cloud Security, Penetration Testing, Risk Management
★ 4.7 (61) · Intermediate · Specialization · 3 - 6 Months

Akamai Technologies, Inc.
Skills you'll gain: SQL, Linux, Endpoint Security, Database Management, Incident Response, Relational Databases, Network Security, Database Systems, Vulnerability Scanning, Computer Security Incident Management, Security Management, Databases, Linux Administration, File Systems, Routing Protocols, OSI Models, Application Development, Remote Access Systems, Scripting, MySQL
★ 4.7 (353) · Beginner · Professional Certificate · 3 - 6 Months

Institut Mines-Télécom
Skills you'll gain: Wireless Networks, Network Architecture, Software-Defined Networking, Network Planning And Design, Virtual Networking, Network Security, Service Oriented Architecture, Emerging Technologies, Network Protocols, Telecommunications, Mobile Security, Interoperability, Digital Communications, Authentications, Encryption, Authorization (Computing)
★ 4.6 (118) · Intermediate · Course · 1 - 3 Months

Institut Mines-Télécom
Skills you'll gain: Network Engineering, Wireless Networks, Network Security, General Networking, Network Architecture, Network Infrastructure, Mobile Security, Network Protocols, Telecommunications, OSI Models, Communication Systems, Digital Communications, Dataflow, Authentications, Key Management, Encryption
★ 4.7 (134) · Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: OSI Models, Network Architecture, Computer Networking, TCP/IP, Network Protocols, General Networking, Wireless Networks, Network Routing, Local Area Networks, Network Security, Routing Protocols, Load Balancing, Network Model, Wide Area Networks, Network Performance Management, Telecommunications, Cloud Services
★ 5 (11) · Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Social Network Analysis, Network Analysis, Data Wrangling, Social Sciences, Data Cleansing, Statistical Visualization, Data Manipulation, Data Visualization, Data Visualization Software, Predictive Analytics
★ 4.7 (244) · Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Network Monitoring, Network Administration, Network Troubleshooting, Network Support, General Networking, Event Monitoring, Network Security, Computer Networking, Network Infrastructure, Command-Line Interface, Software-Defined Networking, Application Programming Interface (API), System Configuration, Network Protocols, Security Controls, Configuration Management
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Graph Theory, R (Software), Social Sciences, Statistical Analysis, R Programming, Statistical Software, Sociology, Network Model, Statistical Modeling, Statistical Hypothesis Testing, Statistical Methods, Dependency Analysis
★ 4.2 (11) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Network Troubleshooting, Microsoft Azure, Virtual Networking, Virtual Machines, Load Balancing, System Configuration, Cloud Security, Network Planning And Design, Network Security, Cloud Storage, Cloud Management, Data Storage, Data Security, Performance Tuning
★ 4.8 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Network Protocols, Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Network Infrastructure, TCP/IP, Border Gateway Protocol, Network Architecture, Network Engineering, General Networking, OSI Models, Wireless Networks, Network Routing, Network Troubleshooting, Network Administration, Network Switches, Local Area Networks, System Configuration
★ 4.3 (10) · Intermediate · Course · 1 - 4 Weeks
Georgia Institute of Technology
Skills you'll gain: Software-Defined Networking, Virtual Networking, Virtualization, Virtual Machines, Cloud Infrastructure, Network Architecture, Network Infrastructure, Cloud Computing, Cloud Deployment, Network Performance Management, Linux, Network Security, Firewall, Performance Tuning, Network Routing, Scalability
★ 4.8 (35) · Mixed · Course · 1 - 3 Months