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: Incident Response, IT Security Architecture, Identity and Access Management, Continuous Monitoring, Network Security, Security Awareness, Information Systems Security, Security Information and Event Management (SIEM), Application Security, Disaster Recovery, Security Controls, Cloud Security, Security Strategy, Threat Detection, Cyber Governance, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Gmail, Authorization (Computing), Google Workspace, Email Security, Data Governance, Cloud Security, Identity and Access Management, Document Management, Data Management, File Management, Enterprise Application Management, User Provisioning, Data Security, Security Assertion Markup Language (SAML), Single Sign-On (SSO), Email Marketing
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Vulnerability Scanning, Google App Engine, Vulnerability Assessments, Application Security, Cloud Security, Google Cloud Platform
Beginner · Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Event Monitoring, Incident Response, Security Management, Cyber Security Policies, Security Information and Event Management (SIEM), Command-Line Interface, Configuration Management, Object Oriented Design, Computer Displays, UI Components
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Zero Trust Network Access, Microsoft Azure, Cloud Platforms, Azure Active Directory, Cloud Security, Endpoint Detection and Response, Security Controls, Multi-Factor Authentication, Cloud Services, Cyber Security Strategy, Identity and Access Management, Data Security, Enterprise Security, Data Governance, Encryption
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Security Assessment, Penetration Testing, Cyber Threat Intelligence
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Centers, Network Security, Virtualization and Virtual Machines, Network Troubleshooting, Network Monitoring, Wide Area Networks, Virtualization, Wireless Networks, Firewall, Hardening, Network Architecture, Network Infrastructure, Virtual Private Networks (VPN), Infrastructure Security, TCP/IP, Cloud Computing, Security Information and Event Management (SIEM), Remote Access Systems, Network Protocols, Internet Of Things
Advanced · Course · 1 - 3 Months

Skills you'll gain: Key Management, Network Security, Digital Communications, Hardware Architecture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AWS CloudFormation, Amazon CloudWatch, Cloud Security, Data Security, Infrastructure as Code (IaC), Data Governance, AWS Identity and Access Management (IAM), Cyber Governance, Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Key Management, Security Controls, Amazon S3, Continuous Monitoring, System Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Threat Modeling, MITRE ATT&CK Framework, Kubernetes, Role-Based Access Control (RBAC), Hardening, Incident Response, Identity and Access Management, Infrastructure Security, Threat Management, Network Security, DevSecOps, Cloud-Native Computing, Threat Detection, Intrusion Detection and Prevention, Public Key Infrastructure, Cloud Security, Firewall, Continuous Monitoring, Application Security
Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Threat Management, Remote Access Systems, Vulnerability Assessments, Threat Detection, Security Requirements Analysis, Cybersecurity, Security Software, Security Management, Telecommuting, Cyber Risk, Cyber Security Strategy, Continuous Monitoring, Security Controls, Virtual Private Networks (VPN), Multi-Factor Authentication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, DevSecOps, Application Security, Security Requirements Analysis, Vulnerability Management, Threat Management, Security Testing, Secure Coding, Vulnerability Assessments, Penetration Testing, Security Awareness, Security Strategy, DevOps, Technology Roadmaps, Risk Management Framework, Software Development Life Cycle
Intermediate · Course · 1 - 3 Months