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

Duke University
Skills you'll gain: Rust (Programming Language), Serverless Computing, Command-Line Interface, Maintainability, Amazon Web Services, Linux Commands, Unix Commands, Application Deployment, Software Development Tools, Program Development, System Programming, Python Programming, Performance Tuning, Debugging, Software Testing
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Network Security, Network Protocols, Network Architecture, TCP/IP, Web Applications, Computer Networking, Encryption, Network Infrastructure, Innovation, Hypertext Markup Language (HTML)
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Public Key Infrastructure, Cybersecurity, Data Security, Firewall, Cyber Attacks, Data Encryption Standard, Penetration Testing, Network Security, Information Assurance, Encryption, Risk Management Framework, Advanced Encryption Standard (AES), Intrusion Detection and Prevention, Application Security, Vulnerability Scanning, Information Systems Security, Secure Coding, Security Controls, Exploitation techniques
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Internet Of Things, Real-Time Operating Systems, General Networking, Wireless Networks, Information Systems Security, Application Security, Petroleum Industry, Automation, Network Protocols, Emerging Technologies, Cloud Platforms, Embedded Systems, Market Analysis, Interviewing Skills, Software-Defined Networking, Workforce Development, Platform As A Service (PaaS)
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Windows Servers, Authorization (Computing), Microsoft Windows, Authentications, Operating System Administration, User Accounts, Group Policy, Microsoft Servers, Security Controls, Enterprise Security, Active Directory, Identity and Access Management, Servers, Computer Security, System Configuration, Encryption
Beginner · Course · 1 - 3 Months
Skills you'll gain: Red Hat Enterprise Linux, Linux, Private Cloud, Linux Administration, Package and Software Management, Command-Line Interface, Operating System Administration, File Systems, Linux Commands, Linux Servers, User Accounts, IBM Cloud, Unix Shell, File Management, OS Process Management, Cloud Management, Infrastructure As A Service (IaaS), Systems Administration, Virtualization, Cloud Computing
Intermediate · Specialization · 3 - 6 Months

Macquarie University
Skills you'll gain: Responsible AI, Information Privacy, Personally Identifiable Information, Data Security, Threat Detection, Anomaly Detection, Threat Modeling, Cyber Security Strategy, Security Controls, Cyber Threat Hunting, Cybersecurity, Cyber Risk, Security Strategy, Cyber Governance, Security Awareness, Artificial Intelligence and Machine Learning (AI/ML), Security Management, Security Software, AI Product Strategy, Generative AI
Beginner · Specialization · 3 - 6 Months

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

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, Google Cloud Platform, Security Controls, Virtual Private Networks (VPN), Firewall, Network Security, Data Access, Role-Based Access Control (RBAC), Authorization (Computing), Single Sign-On (SSO), Authentications, User Accounts, Load Balancing, Encryption
Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Mobile Security, Anomaly Detection, Criminal Investigation and Forensics, Cyber Security Strategy, Cyber Threat Intelligence, Threat Detection, Investigation, Cyber Attacks, File Systems, Intrusion Detection and Prevention, Fraud detection, Mobile Development, Cybersecurity, Applied Machine Learning, Malware Protection, Cyber Security Policies, Apple iOS, Threat Modeling, Artificial Intelligence and Machine Learning (AI/ML), Data Security
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Information Systems Security, Cybersecurity, Identity and Access Management, Authentications, Personally Identifiable Information, Security Controls, Threat Management, Data Security, Information Privacy, Network Security, Authorization (Computing)
Intermediate · Course · 1 - 3 Months