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: Big Data, Apache Hadoop, Data Infrastructure, Data Processing, Analytics, Data Science, Distributed Computing, Linux, Software Installation, Scalability, System Configuration
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Usability, User Experience Design, User Centered Design, Usability Testing, Technical Documentation, Bioinformatics, End User Training and Support, Clinical Informatics, Technical Writing, Product Development, Writing
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Network Performance Management, Policy Development, Policy Analysis, Public Policies, Economics, Policy, and Social Studies, Business Economics, Socioeconomics, digital literacy, Telecommunications, Regulation and Legal Compliance, Technical Writing
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Bash (Scripting Language), Linux Commands, Shell Script, Unix Shell, Linux Administration, Scripting, Network Troubleshooting, Command-Line Interface, Systems Administration, Virtual Machines, Virtualization, Software Installation, System Monitoring, File Management, User Accounts
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Commands, Command-Line Interface, Linux, Linux Servers, Unix, File Systems, File Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Generative Model Architectures, ChatGPT, AI Security, Semantic Web, Vector Databases
Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Transfer Learning, Debugging, Deep Learning, Applied Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Data-Driven Decision-Making, Machine Learning, Model Evaluation, Estimation, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Command-Line Interface, Unix Commands, Remote Access Systems, Linux Commands, System Configuration, Computer Hardware, Networking Hardware, Embedded Systems, Python Programming, Operating Systems, File Management, Peripheral Devices, Software Installation
Beginner · Course · 3 - 6 Months

Logical Operations
Skills you'll gain: Microsoft Visio, Process Flow Diagrams, Diagram Design, Workflow Management, Schematic Diagrams, Infographics, Network Planning And Design, Graphic and Visual Design Software, User Flows, Visual Design, Graphic and Visual Design, Microsoft Office, Graphical Tools, Organizational Structure, Graphic Design
Mixed · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Convolutional Neural Networks, Computer Vision, Keras (Neural Network Library), Image Analysis, Deep Learning, Transfer Learning, Artificial Neural Networks, Tensorflow, Dimensionality Reduction, Network Architecture, Data Preprocessing, Model Evaluation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Customer experience improvement, Product Assortment, Social Media, Social Media Management, Customer Engagement, Social Media Marketing, Photo Editing, E-Commerce, Company, Product, and Service Knowledge, Customer Service, Marketing, Digital Marketing
Intermediate · Guided Project · Less Than 2 Hours