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.

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Applications, System Monitoring, Virtual Machines, Cloud Management, Event Monitoring, Network Monitoring, Cloud Platforms
Beginner · Project · Less Than 2 Hours

Skills you'll gain: User Provisioning, Virtual Networking, Multi-Factor Authentication, Virtual Private Networks (VPN), Servers
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: MongoDB, Data Modeling, Query Languages, Data Security, Database Architecture and Administration, NoSQL, System Monitoring, Database Management, Development Environment, Performance Tuning, Scalability, Encryption, Data Transformation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Linux, Linux Administration, File Systems, Ubuntu, Remote Access Systems, Operating System Administration, Linux Commands, File Management, Red Hat Enterprise Linux, System Configuration, Unix, Software Installation, Command-Line Interface, Operating Systems, Unix Commands, Systems Administration, Authorization (Computing), Virtualization, Virtual Machines, Open Source Technology
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Search Engine Marketing, Google Ads, Search Engine Optimization, Marketing Strategies, Web Analytics and SEO, Marketing, Email Marketing, Marketing Analytics, Digital Marketing, Performance marketing, Marketing Psychology, Customer Relationship Management, Paid media, Campaign Management, Marketing Automation, Advertising Campaigns, Google Analytics, UI/UX Strategy, Social Media Marketing, Digital Advertising
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Metasploit, Penetration Testing, Exploitation techniques, Vulnerability Assessments, Vulnerability Scanning, Cyber Security Assessment
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Network Performance Management, Network Administration, Network Troubleshooting, Linux Servers, Interoperability, General Networking, Network Infrastructure, System Configuration, Network Protocols, Software Installation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Feature Engineering, Model Evaluation, Predictive Modeling, Model Deployment, Predictive Analytics, R Programming, Data Analysis, Statistical Analysis, Data Cleansing, Applied Machine Learning, Data Manipulation, Tidyverse (R Package), Classification Algorithms, Risk Modeling, Data Preprocessing, Machine Learning
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Cryptography, Encryption, Public Key Cryptography Standards (PKCS), Python Programming, Data Security
Intermediate · Guided Project · Less Than 2 Hours

Politecnico di Milano
Skills you'll gain: Innovation, Strategic Thinking, Systems Thinking, Technology Strategies, Digital Transformation, Case Studies, Business Modeling, Business Transformation, Scalability, Social Impact, Market Opportunities, Timelines, Market Dynamics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Intrusion Detection and Prevention, Firewall, Network Security, Threat Detection, Infrastructure Security, Virtual Networking, Cloud Security, Cyber Security Policies, Performance Tuning
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, HTML and CSS, JavaScript Frameworks, Application Frameworks, Javascript, Hypertext Markup Language (HTML), Front-End Web Development, Scalability, Web Applications, Cascading Style Sheets (CSS), Web Development, Software Design, UI Components
Intermediate · Course · 1 - 4 Weeks