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.

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, MITRE ATT&CK Framework, Threat Detection, Infrastructure Security, Payment Card Industry (PCI) Data Security Standards, NIST 800-53, Network Analysis, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Spring Boot, Application Development, Redis, Java, Hibernate (Java), Web Development, Database Development, Authentications, Application Security, Performance Tuning, Unit Testing, Command-Line Interface, Event Monitoring, Software Configuration Management
Mixed · Course · 1 - 3 Months

Infosec
Skills you'll gain: Secure Coding, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Unix, Embedded Systems, Debugging, Unix Commands, Operating Systems, Data Security, Linux, Microsoft Windows
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Risk Analysis, Securities (Finance), Financial Analysis, Credit Risk, Financial Market, Investments, Risk Management, Market Dynamics, Portfolio Management, Finance, Wealth Management, Investment Banking
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cloud Security, Authorization (Computing), Cyber Risk, Authentications, Continuous Monitoring, Threat Modeling, Security Controls, Application Security, Secure Coding, System Monitoring, Cryptography, Data Security, Identity and Access Management, Infrastructure Security, Hardening
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AWS SageMaker, MLOps (Machine Learning Operations), Feature Engineering, AI Personalization, Model Deployment, Amazon Web Services, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Data Cleansing, Data Processing, Data Wrangling, Data Integrity, Machine Learning, Machine Learning Algorithms, Data Modeling, Supervised Learning, Data Mining, Random Forest Algorithm, Data Management, Unsupervised Learning
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Blockchain, Business Strategy, Strategic Decision-Making, Work Breakdown Structure, Project Implementation, Project Design, Solution Design, Financial Services, Business Modeling, Competitive Analysis, Market Analysis, Case Studies, Value Propositions, Market Research
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Ethics, Dashboard, Power BI, Business Intelligence, Interactive Data Visualization, Data Presentation, Data Visualization, Data Storytelling, Data Visualization Software, Data-Driven Decision-Making, Business Reporting, Business Analytics, Data Analysis Expressions (DAX), Data Security, Data Management, Key Performance Indicators (KPIs), Data Analysis, Performance Analysis, Performance Tuning
Beginner · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Software As A Service, Scalability, Amazon Web Services, Cloud Applications, Cloud Development, Amazon S3, Amazon Elastic Compute Cloud, Cloud Management, Cloud Deployment, Application Security, Systems Integration, Multi-Tenant Cloud Environments, Cloud Security, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Incident Management, Incident Response, Security Management, Computer Security Incident Management, Continuous Monitoring, Infrastructure Security, Cybersecurity, Cyber Security Policies, Telecommuting, Threat Modeling, Cyber Security Strategy, Security Controls, Security Strategy, Problem Management, Security Awareness, Employee Engagement
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Responsible AI, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), AWS SageMaker, Amazon Web Services, AI Enablement, AI Security, Artificial Intelligence, Applied Machine Learning, Prompt Engineering, Large Language Modeling, LLM Application, Model Deployment, Machine Learning
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Cloud Computing, Cloud Computing Architecture, Process Optimization, Cloud Deployment, Process Improvement, Manufacturing and Production, Internet Of Things, Innovation, Workforce Development, Robotics, Cybersecurity, Manufacturing Processes, Automation, Augmented and Virtual Reality (AR/VR), Blockchain, Cloud Security, Cyber Attacks, Digital Transformation, Industrial Engineering, Change Management
Beginner · Specialization · 3 - 6 Months