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.

Microsoft
Skills you'll gain: Secure Coding, ASP.NET, Role-Based Access Control (RBAC), Authentications, Data Security, Microsoft Copilot, Encryption, Authorization (Computing), Identity and Access Management, Back-End Web Development, Debugging, Application Security, Data Storage, Cryptography, Application Programming Interface (API), User Accounts
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Secure Coding, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Security Awareness
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Endpoint Security, Infrastructure Security, Security Management, Network Security, Cyber Security Policies, Security Controls, Data Security, Computer Security, Security Strategy, Application Security, IT Infrastructure, Data Integrity
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Secure Coding, Authentications, Authorization (Computing), AI Integrations, Microsoft Copilot, Application Security, Data Validation, Web Applications, Data Security, Data Integrity
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Awareness, Information Systems Security, Cybersecurity, Cyber Security Strategy, Cyber Security Policies, Information Privacy, Data Sharing, Telecommuting, Professional Development
Beginner · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Data Encryption Standard, Threat Management, Cyber Risk, IT Security Architecture, Mobile Security, Enterprise Security, Cyber Security Assessment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Application Security, Patch Management, Data Security, Information Systems Security, Cloud Security, Cybersecurity, Endpoint Security, Cyber Attacks, Internet Of Things, Mobile Security, Hardening, Personally Identifiable Information, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Vulnerability Management, Data Storage, Operating Systems, Cloud Services, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Command-Line Interface, Linux Commands, Linux, Embedded Software, Embedded Systems, Linux Servers, Computer Engineering, File Systems, Unix, C (Programming Language), File Management, Memory Management, Computer Programming, Open Source Technology, OS Process Management, Build Tools
Beginner · Course · 1 - 3 Months

Skills you'll gain: IT Security Architecture, Network Security, Security Architecture Review, Infrastructure Security, Enterprise Application Management, Software-Defined Networking, Computer Networking, Application Security, Zero Trust Network Access, Security Engineering, Network Architecture, Cyber Security Strategy, Cybersecurity, Enterprise Architecture, Software Quality Assurance, Secure Coding, Network Planning And Design, Cloud Security, Cryptography
Advanced · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Linux, Linux Administration, Virtualization and Virtual Machines, File Systems, Linux Servers, File Management, Virtualization, Network Troubleshooting, Virtual Machines, Software Installation, Operating System Administration, Linux Commands, Command-Line Interface, Network Administration, System Configuration, Operating Systems, Computing Platforms, General Networking, Local Area Networks, Shell Script
Beginner · Course · 3 - 6 Months

Skills you'll gain: File Systems, Linux, Linux Commands, File Management, Linux Administration, Operating Systems, Unix, Command-Line Interface, Authorization (Computing), Data Storage
Intermediate · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Microsoft Azure, Threat Modeling, Cloud Security, Continuous Monitoring, System Monitoring, Security Information and Event Management (SIEM), Security Management, Security Controls, Threat Detection, Threat Management, Application Performance Management, Cyber Security Policies, Event Monitoring, Brute-force attacks, Incident Response, Query Languages, Interactive Data Visualization
Intermediate · Course · 1 - 4 Weeks