
EDUCBA
Skills you'll gain: Remote Access Systems, Command-Line Interface, System Monitoring, Unix Commands, User Accounts, Linux, Linux Administration, Shell Script, Linux Commands, Operating System Administration, Systems Administration, Software Installation, File Systems, System Configuration, Data Sharing, Security Controls, Operating Systems, File Management
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Linux, Linux Commands, Linux Servers, Ubuntu, Linux Administration, File Management, Command-Line Interface, Unix Commands, Operating Systems, Web Servers, IT Automation, MySQL, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Bash (Scripting Language), Shell Script, Linux, Scripting, Linux Commands, Linux Administration, Unix Shell, Scripting Languages, Operating System Administration, Unix Commands, Systems Administration, Command-Line Interface, IT Automation, Software Installation, Unix, Linux Servers, Cloud Hosting, Object-Relational Mapping, YAML, Automation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: OS Process Management, Cloud Platforms
Intermediate · Course · 1 - 3 Months

The Linux Foundation
Skills you'll gain: Package and Software Management, Open Source Technology, Git (Version Control System), Linux, Command-Line Interface, Bash (Scripting Language), File Systems, Unix Commands, GitHub, Linux Administration, Version Control, Linux Commands, User Accounts, CI/CD, Shell Script, Operating System Administration, System Configuration, Collaborative Software, Software Development Tools, Software Versioning
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Metasploit, Penetration Testing, Malware Protection, Exploitation techniques, Database Management, Security Testing, Cyber Threat Intelligence, Vulnerability Assessments, Cyber Security Assessment, Cryptography, Cybersecurity, Vulnerability Scanning, Hardening, Threat Detection, Data Import/Export, Public Key Infrastructure, MySQL, Linux, Linux Administration
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Package and Software Management, Linux Administration, Linux, Linux Commands, Virtual Private Networks (VPN), Linux Servers, System Monitoring, Operating System Administration, Public Key Infrastructure, Ubuntu, Version Control, File Management, Command-Line Interface, Intrusion Detection and Prevention, Git (Version Control System), File Systems, User Accounts, Firewall, Cloud Computing Architecture, DevOps
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Linux, Dynamic Host Configuration Protocol (DHCP), General Networking, Virtual Machines, Web Servers, Remote Access Systems, Virtualization and Virtual Machines, Ubuntu, Network Administration, Computer Networking, Network Analysis
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Ansible, Red Hat Enterprise Linux, Linux Administration, Hardening, Linux, Role-Based Access Control (RBAC), Security Controls, Security Engineering, Authorization (Computing), Containerization, Computer Security, System Configuration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux, Linux Administration, Linux Commands, Linux Servers, Shell Script, Unix, Unix Shell, Systems Administration, Unix Commands, Command-Line Interface, Patch Management, Scripting Languages, Package and Software Management, Virtualization and Virtual Machines, File Systems, File Management, Data Storage, Security Controls, User Accounts, Authorization (Computing)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Linux Administration, Ubuntu, Lightweight Directory Access Protocols, File Systems, Linux, Linux Commands, Bash (Scripting Language), Linux Servers, Firewall, Virtual Machines, Package and Software Management, Virtualization, Remote Access Systems, File Management, Operating System Administration, Unix Shell, Shell Script, OS Process Management, Containerization, Git (Version Control System)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Linux, Linux Commands, C (Programming Language), System Programming, Command-Line Interface, Programming Principles, Development Environment, Computer Programming Tools, Data Structures, Program Development, Debugging
Mixed · Course · 1 - 3 Months