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.

Google Cloud
Skills you'll gain: Flutter (Software), UI Components, Mobile Development, Google Cloud Platform, User Interface (UI), Application Development, Cross Platform Development, Web Development, Network Security
Beginner · Project · Less Than 2 Hours

Skills you'll gain: SQL, Data Structures
Intermediate · Course · 1 - 3 Months

Association of International Certified Professional Accountants
Skills you'll gain: Robotic Process Automation, Business Process Automation, Return On Investment, Automation, Business Requirements, Requirements Analysis, Process Mapping, Process Analysis, Performance Measurement, Business Metrics, Value Propositions, Process Improvement, Project Scoping, Digital Transformation
Mixed · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Devops Tools, Development Environment, Software Development Tools, Software Development Methodologies, CI/CD, DevOps, IT Automation, Continuous Deployment, Version Control, Continuous Integration, Network Engineering, Program Development, Docker (Software), Network Infrastructure, Containerization, Software Development, Virtual Environment, Git (Version Control System), Waterfall Methodology, Software Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Metasploit, Exploitation techniques, Penetration Testing, Vulnerability Assessments, Vulnerability Scanning, Verification And Validation, Linux Commands, Command-Line Interface, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cyber Threat Hunting, Incident Response, Computer Security Incident Management, Cybersecurity, Network Security, Cyber Security Policies, Cyber Operations, Cyber Attacks, Cyber Security Strategy, Threat Detection, Security Controls, Cyber Security Assessment, Threat Management, Intrusion Detection and Prevention, Computer Security, Firewall, Security Information and Event Management (SIEM), Continuous Monitoring, Event Monitoring, Endpoint Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MySQL, Business Intelligence, Role-Based Access Control (RBAC), SQL, Relational Databases, Database Software, Data Presentation, Database Management Systems, Data Visualization Software, Database Management, Databases, Data Access, Authorization (Computing), Query Languages, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, Linux Administration, Systems Administration, Software Installation, System Monitoring, Security Controls, Linux Commands, Data Security, Key Management, Event Monitoring, File Systems, Command-Line Interface, Configuration Management, Encryption, Authentications, Cryptographic Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: TCP/IP, Network Routers, Network Routing, Network Security, General Networking, Network Engineering, Remote Access Systems, Network Administration, Network Protocols, Network Infrastructure, Network Troubleshooting, Network Switches, System Configuration
Intermediate · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Portfolio Risk, Portfolio Management, Risk Modeling, Financial Regulations, Investment Management, Capital Markets, Financial Systems, Financial Market, Credit Risk, Risk Management, Derivatives, Investments, Financial Industry Regulatory Authorities, Finance, Financial Regulation, Securities (Finance), Market Liquidity, Business Management, Tax, Financial Services
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Embedded Software, Real-Time Operating Systems, Embedded Systems, Software Systems, Internet Of Things, Real Time Data, System Requirements, Software Development, Secure Coding, Cloud Computing Architecture, Systems Engineering, Cloud-Based Integration, System Design and Implementation, Back-End Web Development, System Implementation, Communication Systems, System Testing, Algorithms, Performance Testing, Systems Analysis
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Django (Web Framework), GitHub, Version Control, Git (Version Control System), User Interface and User Experience (UI/UX) Design, User Experience Design, Secure Coding, User Interface (UI), Web Development, Application Security, Application Frameworks, Development Environment, Authentications, Usability, Web Applications, Integrated Development Environments, User Accounts, Authorization (Computing)
Intermediate · Guided Project · Less Than 2 Hours