Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

University of Maryland, College Park
Skills you'll gain: Cybersecurity, Cyber Security Policies, Cyber Risk, Risk Management, Cyber Attacks, Risk Mitigation, Business Risk Management, Cyber Security Strategy, Stakeholder Communications, Operational Risk, Enterprise Risk Management (ERM), Security Management, Risk Analysis, Cyber Security Assessment, Threat Modeling, Risk Modeling, Governance, Vulnerability Assessments, Information Privacy, Estimation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Database Administration, Database Architecture and Administration, Database Management, Apache Airflow, Operational Databases, PostgreSQL, MySQL, Data Warehousing, Data Pipelines, Extract, Transform, Load, Database Design, SQL, Data Architecture, Performance Tuning, Disaster Recovery, Data Security, Data Import/Export, Data Transformation
Advanced · Course · 1 - 3 Months

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: Cucumber (Software), API Testing, Gherkin (Scripting Language), Behavior-Driven Development, JSON, Restful API, Apache Maven, Test Tools, Test Case, JUnit, Test Script Development, Security Testing, Test Automation, Authentications, Application Programming Interface (API), Test Data, Scalability, Java Programming, Software Testing, Java
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Cybersecurity, Cyber Security Assessment, Incident Response, Firewall, Vulnerability Scanning, Network Protocols, Brute-force attacks, Vulnerability Assessments, Malware Protection, Virtualization and Virtual Machines, Linux Commands
Beginner · Course · 1 - 3 Months

Skills you'll gain: Infrastructure as Code (IaC), AWS CloudFormation, CI/CD, Git (Version Control System), Jenkins, Ansible, Devops Tools, Version Control, Terraform, Docker (Software), Kubernetes, DevOps, Prometheus (Software), Cloud-Native Computing, Continuous Deployment, Containerization, Continuous Integration, Amazon Web Services, Software Development Tools, Configuration Management
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: File I/O, C and C++, Communication Systems
Advanced · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Computing, Digital Transformation, Public Cloud, Infrastructure As A Service (IaaS), Cloud Infrastructure, Hybrid Cloud Computing, Software As A Service, Platform As A Service (PaaS), Technology Strategies, Google Cloud Platform, Multi-Cloud, Capital Expenditure, Cloud Security, Operating Expense
Beginner · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Application Deployment, Cloud Deployment, Cloud-Native Computing, Scalability, Containerization, Continuous Deployment, Docker (Software), Cloud Applications, Cloud Management, API Gateway, Devops Tools, Cloud Storage, Network Troubleshooting, Authentications, DevOps, Google Cloud Platform, Test Case, Network Protocols, Application Programming Interface (API)
Intermediate · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Infrastructure as Code (IaC), Terraform, IT Infrastructure, Google Cloud Platform, Cloud Management, Network Security
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Oracle Databases, Oracle SQL Developer, PL/SQL, Database Administration, Database Architecture and Administration, Relational Databases, Database Management, Database Management Systems, Stored Procedure, Database Design, SQL, Data Storage, Data Management, Performance Tuning, Data Integrity, Security Controls, Authorization (Computing), Identity and Access Management, System Monitoring, User Accounts
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Serverless Computing, Cloud Management, Data Governance, Cloud Security, Application Programming Interface (API), Artificial Intelligence and Machine Learning (AI/ML), Containerization, Distributed Denial-Of-Service (DDoS) Attacks, Google Cloud Platform, Digital Transformation, Cloud Computing, Site Reliability Engineering, Google App Engine, Cloud Infrastructure, Real Time Data, Looker (Software), Data Strategy, Public Cloud, Cybersecurity, Responsible AI
Beginner · Specialization · 3 - 6 Months