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.

LearnKartS
Skills you'll gain: Infrastructure as Code (IaC), Google Cloud Platform, Application Deployment, Kubernetes, Google App Engine, CI/CD, Terraform, Continuous Deployment, Microservices, Cloud-Native Computing, Continuous Integration, Cloud Storage, Containerization, Security Strategy, Docker (Software), DevOps, Network Troubleshooting, Virtual Machines, System Monitoring, Analytics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Centers, Ansible, Open Shortest Path First (OSPF), Network Switches, Virtual Local Area Network (VLAN), Network Infrastructure, Border Gateway Protocol, Network Architecture, Network Administration, Network Routing, Infrastructure Security, Network Security, Virtualization, Network Monitoring, Data Storage Technologies, Automation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cost Management, Product Roadmaps, Agile Project Management, Business Analysis, Stakeholder Engagement, Cost Estimation, Project Management, Scope Management, Requirements Analysis, Stakeholder Communications, Project Controls, Business Leadership, Project Planning, Quality Management, Risk Management, Stakeholder Management, Risk Management Framework, Problem Solving, Communication, Critical Thinking
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, JSON, Restful API, Apache Maven, Application Programming Interface (API), Test Tools, Test Case, Test Planning, JUnit, Test Engineering, Security Testing, Test Automation, Authentications, Test Data, Scalability, Software Testing, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

Pearson
Skills you'll gain: Open Web Application Security Project (OWASP), DevSecOps, Security Testing, CI/CD, DevOps, Application Security, Continuous Integration, Secure Coding, Continuous Delivery, Regulatory Compliance, Security Engineering, Vulnerability Assessments, Penetration Testing, Vulnerability Management, Compliance Auditing
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Incident Response, Computer Security Incident Management, Cyber Threat Intelligence, Intrusion Detection and Prevention, Anomaly Detection, Cyber Security Strategy, Threat Detection, Network Analysis, Network Security, Network Monitoring, NIST 800-53, Cloud Security
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Cloud Infrastructure, Cloud Management, Cloud Security, Digital Transformation, Google Cloud Platform, Data Governance, Cloud Storage, Real Time Data, Cloud Platforms, Cloud Services, Site Reliability Engineering, Cloud Applications, Looker (Software), Data Storage, Cost Management, Data Security, Hybrid Cloud Computing, Cloud Computing, Responsible AI
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Unified Modeling Language, Visual Basic (Programming Language), Data Structures, Object Oriented Design, Data Modeling, Microsoft Visual Studio, Program Development, Object Oriented Programming (OOP), .NET Framework, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Docker (Software), Containerization, Git (Version Control System), Flask (Web Framework), Application Programming Interface (API), Authentications, Application Deployment, Database Management, JSON, Object-Relational Mapping, Continuous Deployment, Python Programming, Object Oriented Programming (OOP), Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Virtual Local Area Network (VLAN), Computer Displays, Peripheral Devices, TCP/IP, Display Devices, Local Area Networks, Networking Hardware, Dynamic Host Configuration Protocol (DHCP), General Networking, USB, Wireless Networks, Computer Networking, Network Routers, Network Infrastructure, Hardware Troubleshooting, Network Switches, Network Protocols, Computer Hardware
Beginner · Course · 1 - 3 Months

Skills you'll gain: Exploit development, Penetration Testing, Malware Protection, Network Monitoring, Object Oriented Programming (OOP), Cyber Security Assessment, Intrusion Detection and Prevention, Network Security, Network Protocols, Network Analysis, Scripting, Remote Access Systems, Python Programming, Command-Line Interface
Advanced · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Security, Key Management, Encryption, Cloud Storage, Cloud API, Data Governance, Google Cloud Platform, Data Security
Beginner · Project · Less Than 2 Hours