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: Dynamic Host Configuration Protocol (DHCP), Linux Servers, User Accounts, Virtualization, Linux Administration, Lightweight Directory Access Protocols, Group Policy, Server Administration, Performance Tuning, Virtual Machines, Systems Administration, Linux, Network Administration, Network Architecture, System Configuration, Network Security, Security Management, Cybersecurity, Disaster Recovery, Large Language Modeling
Intermediate · Specialization · 1 - 4 Weeks

Starweaver
Skills you'll gain: Threat Modeling, Open Web Application Security Project (OWASP), Secure Coding, DevSecOps, Application Security, Cloud Security, Cloud Standards, Security Controls, Security Testing, Application Development, Containerization, Software Development, CI/CD, Continuous Monitoring, Cybersecurity, Infrastructure as Code (IaC), Supply Chain, Dependency Analysis
Intermediate · Course · 1 - 3 Months

University of London
Skills you'll gain: Computer Security Incident Management, Linux, Network Security, Cyber Governance, OSI Models, Incident Management, Incident Response, Security Management, Linux Commands, TCP/IP, Computer Systems, Threat Modeling, Command-Line Interface, Network Protocols, Cybersecurity, Computer Networking, Cyber Security Strategy, Human Factors (Security), Cyber Threat Intelligence, Cyber Attacks
Beginner · Specialization · 3 - 6 Months

Amazon Web Services
Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, Cloud Security, Amazon Web Services, Cloud Management, Cyber Governance, Security Controls, Amazon CloudWatch, Data Governance, Governance, Governance Risk Management and Compliance, Compliance Management, Multi-Tenant Cloud Environments, Continuous Monitoring, Risk Control, Account Management, Threat Detection, Automation, Configuration Management, Budget Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Threat Modeling, Cryptography, Application Security, Security Testing, Security Engineering, Threat Management, Cybersecurity, Data Security, Vulnerability Assessments, Threat Detection, Information Systems Security, Cyber Security Strategy, Key Management, Encryption, Network Protocols, Regulatory Compliance, Scripting, Financial Regulation, Scalability
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: C# (Programming Language), Microsoft Visual Studio, .NET Framework, Game Design, Programming Principles, Linux, Application Development, Cross Platform Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Bash (Scripting Language), Linux Commands, Shell Script, Unix Shell, Linux Servers, Linux Administration, Scripting, Network Troubleshooting, Scripting Languages, Command-Line Interface, Systems Administration, IT Automation, Virtual Machines, Virtualization, Software Installation, System Monitoring, File Management, User Accounts
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Computer Security, OSI Models, Systems Administration, Virtualization, Operating System Administration, Network Security, Information Technology, Information Systems Security, Enterprise Security, General Networking, Cybersecurity, Computer Networking, Virtual Machines, Enterprise Architecture
Beginner · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Open Web Application Security Project (OWASP), DevSecOps, Secure Coding, Application Security, Threat Detection, Security Testing, Security Engineering, Continuous Delivery, Continuous Integration, Vulnerability Assessments, CI/CD, DevOps, Vulnerability Scanning
Advanced · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, Google Cloud Platform, Data Lakes, Cloud Storage, Data Security, Data Access, Role-Based Access Control (RBAC), Cloud Computing, Big Data, Data Analysis
Beginner · Project · Less Than 2 Hours

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: OS Process Management, Cloud Platforms
Intermediate · Course · 1 - 3 Months