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.

Alibaba Cloud Academy
Skills you'll gain: Relational Databases, Load Balancing, Cloud Computing, Database Management, Cloud Infrastructure, Cloud Computing Architecture, Cloud Security, Data Security, Servers, Cloud Storage, Data Storage Technologies, Scalability, Encryption
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Application Security, Information Systems Security, Software Installation, System Configuration, Data Management, Computer Hardware, Data Security, Data Storage, Microsoft Windows, Firewall, Disaster Recovery, Encryption, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cloud Security, Authentications, Key Management, Data Security, Cloud Applications, Cloud Services, Application Security, Authorization (Computing), Cyber Risk, Secure Coding, Cloud Storage, Personally Identifiable Information, DevSecOps, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Cloud Computing, Cybersecurity, Cryptography
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Cybersecurity, Public Key Cryptography Standards (PKCS), Key Management, Advanced Encryption Standard (AES), Encryption, Authentications, Arithmetic, Algorithms, Applied Mathematics, Data Integrity, Probability, Computer Science
Beginner · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: Application Deployment, Django (Web Framework), Object-Relational Mapping, HTML and CSS, Model View Controller, jQuery, Ajax, JSON, Database Design, SQL, Application Frameworks, Databases, Web Applications, Application Development, Object Oriented Programming (OOP), Web Development, Data Modeling, Javascript, Application Security, Cascading Style Sheets (CSS)
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Network Security, Computer Hardware, Hardware Architecture, Computer Systems, TCP/IP, Information Technology, General Networking, Computer Literacy, Network Protocols, Operating Systems, System Configuration, Software Installation, Computer Networking, File Systems
Beginner · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Apache Airflow, Data Modeling, Data Pipelines, Data Storage, Data Architecture, Requirements Analysis, Data Processing, Data Warehousing, Query Languages, Apache Hadoop, Extract, Transform, Load, Data Lakes, Amazon Web Services, File Systems, Apache Spark, Database Systems, Feature Engineering, Data Integration, AWS Kinesis, Data Management
Intermediate · Professional Certificate · 3 - 6 Months

MedCerts
Skills you'll gain: Information Management, Care Coordination, Health Care Administration, Data Ethics, Healthcare Ethics, Medical Coding, Data Storage, Interoperability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Continuous Monitoring, Medical Privacy, Personally Identifiable Information, Risk Management, Health Information Management, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Regulatory Compliance, Data Management, Information Privacy, Health Care Procedure and Regulation, Risk Mitigation, Healthcare Industry Knowledge, Security Management, Risk Analysis, Health Care, Patient Safety, Security Awareness, Data Security, Cybersecurity, Information Systems Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Intrusion Detection and Prevention, Computer Security Incident Management, Cyber Threat Hunting, Cyber Attacks, Cybersecurity, Cyber Operations, Continuous Monitoring, Event Monitoring, Disaster Recovery, Incident Management, Security Information and Event Management (SIEM), Threat Detection, Cloud Security, Security Controls, Threat Management, System Monitoring, IT Automation, Record Keeping, Problem Management
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Database Design, LLM Application, Software Documentation, Software Design Patterns, Databases, Test Automation, Collaborative Software, Software Testing, Application Design, Technical Documentation, Generative AI, Database Management, Software Design, Code Review, Software Architecture, Software Engineering, Software Development, Machine Learning
Beginner · Professional Certificate · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, LLM Application, Generative AI, Code Review, Program Development, Software Development Methodologies, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 4 Weeks