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: Microsoft Azure, Cloud Applications, Application Deployment, Application Programming Interface (API), Cloud API, Authentications, Payment Systems, Authorization (Computing), Role-Based Access Control (RBAC), UI Components, Identity and Access Management, Email Automation, Database Management, Transaction Processing, User Interface (UI), Data Validation
Advanced · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Blockchain, Key Management, Threat Modeling, Application Security, Computer Security, Public Key Infrastructure, Security Controls, Cryptography, Cybersecurity, Network Security, Information Systems Security, Data Security, Security Engineering, Vulnerability Assessments, Secure Coding, Cryptographic Protocols, Infrastructure Security, Encryption, Security Testing, Solution Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Security Testing, Data Management, Records Management, Cloud Computing Architecture, Authentications, Firewall, Cyber Attacks, Cybersecurity, Malware Protection, System Testing, Cyber Threat Intelligence, Authorization (Computing), General Data Protection Regulation (GDPR), Cloud Computing, Data Governance, Active Directory, Data Ethics, Responsible AI, LLM Application
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Threat Management, Cybersecurity, Risk Management, Incident Response, Vulnerability Management, Security Information and Event Management (SIEM), Security Controls, Information Systems Security, Enterprise Security, Risk Analysis, Threat Detection, Information Assurance, Open Web Application Security Project (OWASP), Auditing, Compliance Auditing
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Data Security, Personally Identifiable Information, Information Assurance, Security Management, Data Governance, Data Loss Prevention, Data Management, Threat Management, Threat Detection, Encryption, Identity and Access Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Incident Response, IT Security Architecture, Secure Coding, Application Security, Identity and Access Management, Information Systems Security Assessment Framework (ISSAF), Security Testing, Continuous Monitoring, Information Systems Security, Network Security, Security Strategy, Zero Trust Network Access, Security Awareness, Security Information and Event Management (SIEM), Risk Management Framework, Disaster Recovery, Security Controls, Cybersecurity, Enterprise Architecture
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Microsoft Intune (Mobile Device Management Software), Endpoint Security, Microsoft Windows, Mobile Security, Operating System Administration, Security Management, Android (Operating System), Patch Management, Microsoft Azure, System Configuration, System Monitoring, Azure Active Directory, Windows Servers, Remote Access Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Data Security, Encryption, Authorization (Computing), General Data Protection Regulation (GDPR), Secure Coding, Public Key Infrastructure, Authentications, Web Development, Application Security, Web Applications, Multi-Factor Authentication, Security Strategy
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Human Factors (Security), Security Awareness, Cyber Security Strategy, Cyber Governance, Data Ethics, User Experience Design, Cyber Security Policies, Cyber Security Assessment, Cyber Attacks, Cyber Risk, Security Management, Cybersecurity, Security Strategy, Culture Transformation, Cyber Threat Intelligence, Cyber Threat Hunting, Data Security, Network Security, Cloud Security, Mobile Security
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Threat Modeling, Network Security, Internet Of Things, Identity and Access Management, Encryption, Security Engineering, Infrastructure Security, Cybersecurity, Security Controls, Threat Management, Cloud Security, Vulnerability Assessments, Threat Detection, Cloud Solutions, Systems Architecture, Cryptography, Information Privacy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Intrusion Detection and Prevention, Computer Security Incident Management, Incident Management, Threat Detection, Endpoint Detection and Response, Security Information and Event Management (SIEM), IT Automation, Automation, Event Monitoring, Cyber Threat Hunting, Cyber Threat Intelligence, Continuous Monitoring, System Monitoring, Anomaly Detection, Cybersecurity, Security Controls, Data Analysis Software, Risk Management Framework, Configuration Management
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Email Security, Mobile Security, Network Security, Open Web Application Security Project (OWASP), Network Monitoring, Threat Detection, TCP/IP, Network Analysis, Network Protocols, Cybersecurity, Application Security, Vulnerability Scanning, Wireless Networks, Splunk, Information Privacy
Intermediate · Course · 1 - 3 Months