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.

Cisco Learning and Certifications
Skills you'll gain: Cloud Deployment, Identity and Access Management, Active Directory, Network Troubleshooting
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Warehousing, Apache Hadoop, Transaction Processing, Distributed Computing, Data Architecture, Relational Databases, Database Management, Database Architecture and Administration, Cloud Computing, Big Data, Data Processing, Machine Learning, Scalability, Data Integrity, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Command-Line Interface, Linux, Ubuntu, Linux Administration, Linux Commands, Unix Commands, Operating System Administration, Unix, Software Installation, Red Hat Enterprise Linux, System Configuration, Network Troubleshooting, User Accounts, Networking Hardware, Network Support, File Systems, Open Source Technology, File Management, Package and Software Management, Computing Platforms
Beginner · Course · 1 - 3 Months

Skills you'll gain: Adobe Firefly, AI Security, Ethical Standards And Conduct, Diversity and Inclusion, Stakeholder Engagement, Content Creation, Authentications, Brand Management, Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Instagram, Social Media Content, Social Media, Social Media Marketing, Organizational Skills, Content Creation, Graphic Design, Graphic and Visual Design, Color Theory, Typography, Marketing
Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Private Cloud, Virtual Machines, VMware vSAN, VMware ESX Servers, vSphere Networking and Storage, Cloud Infrastructure, Virtual Networking, Google Cloud Platform, NSX-T Network Virtualization, Cloud Deployment, Cloud Computing, Cloud Computing Architecture, vCenter Server, Cloud Storage, General Networking
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Virtual Machines, Blockchain, Identity and Access Management, Transaction Processing, Google Cloud Platform, Cryptography, Cloud Security
Advanced · Project · Less Than 2 Hours

Skills you'll gain: System Monitoring, Shell Script, Bash (Scripting Language), Unix Shell, User Accounts, Linux Commands, Network Monitoring, Linux, Systems Administration, Linux Administration, Operating System Administration, Unix, Ubuntu, Unix Commands, Network Troubleshooting, System Configuration, File Management, File Systems, Command-Line Interface, Red Hat Enterprise Linux
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Routing Protocols, TCP/IP, System Configuration, Continuous Monitoring
Beginner · Course · 1 - 3 Months

Skills you'll gain: Google Cloud Platform, Data Sharing, Big Data, Data Access, Cloud Computing, Cloud Security, Data Integration, Data Management, Data Visualization
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Cloud Development, Microservices, Scalability, Microsoft SQL Servers, Cloud Computing Architecture, Microsoft Visual Studio, Application Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Google Cloud Platform, Identity and Access Management, Cloud Infrastructure, Infrastructure As A Service (IaaS), Cloud Computing, Cloud Services, Cloud Storage, Data Storage Technologies, Cloud Deployment, Security Management, Database Management Systems, System Monitoring, DevOps, Encryption, Scalability
Intermediate · Course · 1 - 3 Months