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.

Johns Hopkins University
Skills you'll gain: Scientific Visualization, Data Visualization Software, Visualization (Computer Graphics), Statistical Visualization, Computer Displays, Data Presentation, Time Series Analysis and Forecasting, Display Devices, Scalability, Data Validation, Computer Graphics, 3D Modeling, Medical Imaging, Computer Graphic Techniques
★ 5 (7) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Computing, Java Programming, Load Balancing, Middleware, Database Management Systems, NoSQL, Event-Driven Programming, Databases, Systems Architecture, Software Architecture, Computer Systems, Remote Access Systems, Microservices, Scalability, Service Management, Communication Systems
Intermediate · Course · 1 - 3 Months

Sage Publications
Skills you'll gain: Sales Prospecting, Closing (Sales), Sales Presentation, Sales Process, Sales Management, Active Listening, Selling Techniques, Conflict Management, Customer Acquisition Management, Sales, Prospecting and Qualification, Account Strategy, Sales Strategy, General Sales Practices, Persuasive Communication, Customer Relationship Management, Customer Analysis, Sales Development, Ethical Standards And Conduct, Network Administration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Cyber Threat Intelligence, Enterprise Application Management, Cyber Attacks, Emerging Technologies, Financial Trading, Digital Assets, Cyber Security Assessment, Cryptographic Protocols, FinTech, Payment Systems, Security Testing, Auditing, Transaction Processing, Data Integrity
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Command-Line Interface, AI Security, Tool Calling, Context Engineering, Model Context Protocol, Context Management, Software Development Tools, Responsible AI, Software Installation, Servers
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Kubernetes, Docker (Software), Cloud Deployment, Containerization, Application Deployment, Scalability, Google Cloud Platform, Node.JS
★ 4.9 (7) · Intermediate · Project · Less Than 2 Hours

Alex Genadinik
Skills you'll gain: Search Engine Optimization, Web Analytics and SEO, Keyword Research, Web Analytics, Auditing, Frontend Performance, Content Strategy, Content Optimization, Performance Tuning, Digital Marketing Tools, Performance Metric
Mixed · Course · 3 - 6 Months

Skills you'll gain: Restful API, Application Programming Interface (API), Authentications, Test Automation, JSON, Security Testing, Authorization (Computing), Java Programming, Scenario Testing, Java, Test Tools, Back-End Web Development
★ 5 (11) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Deployment, Cloud Computing Architecture, Application Deployment, Serverless Computing, Security Controls, Authentications, Security Requirements Analysis, Identity and Access Management, AWS Identity and Access Management (IAM), Network Planning And Design, Amazon Elastic Compute Cloud, Authorization (Computing), Amazon Web Services, Infrastructure as Code (IaC), Disaster Recovery, Cloud Infrastructure, Network Architecture, Cloud Computing, Containerization, Cloud Solutions
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Network Troubleshooting, General Networking, OSI Models, Network Protocols, Network Support, Networking Hardware, TCP/IP, Microsoft Windows, Network Routers, Network Switches, Network Administration, Local Area Networks, Computer Networking, Technical Support and Services, Network Model, Computer Hardware, System Configuration, Command-Line Interface, iOS Development, Memory Management
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Command-Line Interface, Linux, Ubuntu, Linux Administration, Linux Commands, Operating System Administration, Bash (Scripting Language), Software Installation, System Configuration, Network Troubleshooting, User Accounts, Networking Hardware, Network Support, Open Source Technology, File Management, Package and Software Management, Scripting
Beginner · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Microsoft Azure, Azure Synapse Analytics, Data Integration, Cloud-Based Integration, Data Architecture, Cloud Storage, Data Lakes, Data Infrastructure, Data Pipelines, Data Storage, Databricks, Microsoft SQL Servers, Data Storage Technologies, NoSQL, .NET Framework, Data Security, Encryption, Scalability
Intermediate · Course · 1 - 4 Weeks