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: File Systems, Operating Systems, Data Integrity, Debugging, Systems Design, Distributed Computing, Data Storage, C (Programming Language), System Programming, Computer Systems, Command-Line Interface, Data Security, Computer Hardware, Scalability, Version Control
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Visualization, Machine Learning Algorithms, Product Planning, File Systems, Product Requirements, Project Planning, Big Data, Data Analysis, Data Processing, Data Wrangling, Plan Execution, Machine Learning, Internet Of Things, Data Storage Technologies, Design, Data Storage, Supervised Learning, Unsupervised Learning, Requirements Analysis
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, TCP/IP, Vulnerability Scanning, General Networking, Network Protocols, Cyber Security Assessment, Network Security, Network Administration, Vulnerability Assessments, Firewall, Network Analysis, Scripting, System Configuration
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Docker (Software), Cloud-Native Computing, Containerization, Application Deployment, Devops Tools, Data Storage, Microservices, DevOps, Data Storage Technologies, Security Controls, CI/CD, Authentications, Network Model, YAML, Network Planning And Design, Local Area Networks, Scalability, File Systems
Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Swift Programming, Objective-C (Programming Language), iOS Development, Core Data (Software), Apple iOS, Video Game Development, Game Design, Model View Controller, JSON, User Interface (UI) Design, UI Components, Mobile Development, User Interface and User Experience (UI/UX) Design, OAuth, Responsive Web Design, Prototyping, Animation and Game Design, Apple Xcode, Human Computer Interaction, UI/UX Strategy
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, Email Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Security Awareness
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Secure Coding, Application Security, Computer Programming Tools, C++ (Programming Language), Software Development Tools, Programming Principles, C (Programming Language), Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), C# (Programming Language), Object Oriented Design, Application Development, Data Structures, Linux
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Cryptography, Cybersecurity, Encryption, Key Management, Public Key Cryptography Standards (PKCS), Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Administration, Virtual Local Area Network (VLAN), General Networking, Network Architecture, TCP/IP, Local Area Networks, Computer Networking, Command-Line Interface, Network Infrastructure, Wireless Networks, Network Security, Network Switches, OSI Models, Dynamic Host Configuration Protocol (DHCP), Network Routing, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Technical Support, Technical Support and Services, Hardware Troubleshooting, Cloud Computing, Desktop Support, Cloud Services, Cybersecurity, System Support, End User Training and Support, Cloud Storage, Network Troubleshooting, Cloud Security, Computer Hardware, Customer Service, General Networking, Data Storage, Issue Tracking, Operating Systems
Intermediate · Course · 1 - 3 Months