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.

Illinois Tech
Skills you'll gain: Database Design, Relational Databases, Database Theory, Data Modeling, Unified Modeling Language, Database Management, Databases, Data Integrity, Diagram Design, Dependency Analysis, Conceptual Design, Requirements Analysis
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Web Servers, Lightweight Directory Access Protocols, Email Security, Linux, Nginx, Apache, Dynamic Host Configuration Protocol (DHCP), Operating System Administration, Server Administration, Active Directory, System Configuration, Proxy Servers, Network Security, Firewall, File Management, Identity and Access Management, Authentications
Advanced · Course · 1 - 3 Months
Codio
Skills you'll gain: Infrastructure as Code (IaC), Terraform, Docker (Software), Kubernetes, Ansible, Containerization, Ubuntu, Cloud Infrastructure, Cloud Management, Cloud-Native Computing, Cloud Computing Architecture, Systems Development, Application Deployment, Firewall, Infrastructure As A Service (IaaS), Security Controls, Unix, Bash (Scripting Language), Amazon Web Services, Amazon Elastic Compute Cloud
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Cyber Threat Intelligence, Threat Management, Threat Modeling, Zero Trust Network Access, DevSecOps, Identity and Access Management, Application Security, Cybersecurity, Data Security, Microsoft Azure, Security Strategy, IT Security Architecture, Cloud Security, Network Security
Advanced · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Logo Design, Video Production, Graphic and Visual Design, Content Creation, Graphic Design, Content Marketing, Social Media Marketing, Social Media, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Generative AI Agents, Prompt Engineering, Google Gemini, Retrieval-Augmented Generation, Responsible AI, Generative AI, Google Workspace, AI Product Strategy, AI Security, AI Workflows, Google Cloud Platform, AI Enablement, Large Language Modeling, Prompt Patterns, Customer experience improvement, Artificial Intelligence, Technology Strategies, Cloud Infrastructure, Cloud Computing, Collaboration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: File Management, Computer Literacy, Microsoft Office, Email Security, Computer Hardware, Computer Security Awareness Training, Spreadsheet Software, digital literacy, Information Management, Safety and Security
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Virtualization, Virtual Machines, Hyper-V, Virtual Networking, VMware ESX Servers, Data Centers, Data Storage, Cloud Computing, Servers, Virtual Reality, iSCSI Configuration, Remote Access Systems, Computer Hardware
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Salesforce Development, Salesforce, Application Deployment, Workflow Management, Operational Efficiency, Dashboard, Data Access, Application Design, Application Development, No-Code Development, User Accounts, UI Components, Cloud Applications, Business Objects Framework, Data Security, Data Sharing, Business Process Automation, Customer Relationship Management (CRM) Software, Business Logic, User Interface (UI)
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Rmarkdown, Tidyverse (R Package), Ggplot2, Spatial Data Analysis, Data Visualization Software, Statistical Visualization, Geospatial Information and Technology, Data Manipulation, Scatter Plots, Plotly, Interactive Data Visualization, R Programming, Data Mapping, Animations
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Fraud detection, Reconciliation, Variance Analysis, Cash Control, Internal Controls, Asset Protection, Accounting Records, Financial Statement Analysis, Financial Controls, Investigation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Lead Generation, Marketing Automation, Social Media, Social Media Marketing, Copywriting, Web Analytics, Automation
Beginner · Guided Project · Less Than 2 Hours