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.

Splunk Inc.
Skills you'll gain: Data Modeling, Splunk, Pivot Tables And Charts, Data Management, Database Management, Query Languages, Data Integration, Performance Tuning, Data Science, Data Analysis, Big Data, Business Intelligence, Business Analytics, Geospatial Information and Technology, Statistics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Performance Tuning, Unix Commands, Ubuntu, Debugging, Service Management, User Accounts, OS Process Management, Scripting, Cloud Deployment
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Firewall, Network Security, Linux, Linux Administration, Security Controls, Hardening, Ubuntu, File Management, Authorization (Computing), File Systems, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Model Evaluation, Data Validation, Regression Analysis, Exploratory Data Analysis, Plot (Graphics), Statistical Modeling, Data Transformation, Correlation Analysis, Statistical Analysis, R Programming, Time Series Analysis and Forecasting, Statistical Inference, Statistical Hypothesis Testing, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Process Optimization, Process Improvement, Innovation, Workforce Development, Digital Transformation, Technology Strategies, Manufacturing Operations, Workforce Management, Budget Management, Emerging Technologies, Organizational Change, Regulatory Requirements, Supply Chain Management, Change Management, Compliance Management, Infrastructure Architecture, Data Security
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Generative AI Agents, Google Gemini, Retrieval-Augmented Generation, Responsible AI, Google Cloud Platform, Generative AI, AI Enablement, AI Product Strategy, AI Security, Google Workspace, Customer Engagement, AI Workflows, Cloud Infrastructure, LLM Application, Cloud Computing, Artificial Intelligence, Data Modeling, Innovation, Collaboration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Power Automate/Flow, Microsoft Power Platform, Email Automation, Document Management, Microsoft 365, Collaborative Software, Billing & Invoicing, Intranet, Automation
Beginner · Guided Project · Less Than 2 Hours

Simplilearn
Skills you'll gain: Social Media Marketing, Social Media Management, Social Media Strategy, Social Media Campaigns, Brand Management, Campaign Management, Instagram, Content Creation, Performance Analysis, Web Analytics, Target Audience, Digital Advertising, Brand Awareness, Advertising Campaigns, Facebook, Digital Marketing, Pinterest, LinkedIn, Customer Engagement
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Apache Hadoop, Extract, Transform, Load, Data Transformation, Apache Hive, Big Data, Data Warehousing, Strategic Decision-Making, Apache Spark, Data Integration, Data Processing, Data Management, Data Analysis, Scalability
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Visualization Software, Interactive Data Visualization, Geospatial Information and Technology, Color Theory, Tree Maps, Data Storytelling, Heat Maps, Data Mapping, Text Mining, Unstructured Data, Network Analysis
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Billing, Amazon Web Services, Cost Reduction, Amazon S3, Cost Management, Amazon Elastic Compute Cloud, Cost Estimation, Cloud Management, Public Cloud, Infrastructure As A Service (IaaS), Capacity Management, Cloud Services
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Workplace inclusivity, Intercultural Competence, Emergency Response, Risking, Professionalism, Diversity Equity and Inclusion Initiatives, De-escalation Techniques, Communication Strategies
Beginner · Course · 1 - 3 Months