Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Cloud Platform, Apache, Cloud Management, System Monitoring, Virtual Machines, Event Monitoring, Web Servers, Cloud Infrastructure
Beginner · Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Linux Administration, Linux, Linux Servers, Operating System Administration, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Computer Security, Network Administration, Authentications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: API Design, Application Programming Interface (API), Restful API, Postman API Platform, Flask (Web Framework), MySQL, Databases, Software Versioning, Software Development, Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Microsoft Azure, Cloud Infrastructure, Cloud Computing, Network Security, Virtual Networking, Web Servers, Network Administration, Remote Access Systems, Ubuntu, Application Deployment
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Apache, File Transfer Protocol (FTP), Linux Servers, Linux Administration, Linux, Web Servers, Remote Access Systems, Command-Line Interface, Unix Commands, File Management, Network Protocols, Network Performance Management, Security Controls
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Web Development Tools, Web Development, Hypertext Markup Language (HTML), HTML and CSS, Web Design and Development, Web Applications, Web Design, Web Servers, Development Environment, Apache, Software Development, Web Content, Front-End Web Development, Semantic Web, Information Architecture
Mixed · Course · 1 - 4 Weeks

Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Server Side, Data Access, Apache Tomcat, Application Servers, Relational Databases, Databases, Java, Web Servers, SQL, Authentications, Web Applications, Secure Coding, Software Design Patterns, Data Persistence, Context Management
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Serverless Computing, Cloud Applications, Back-End Web Development, Cloud Development, Database Development, Cloud API, Data Store, Cloud Deployment, Google Cloud Platform, Data Management, User Accounts
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Application Servers, Business Logic, Role-Based Access Control (RBAC), User Accounts, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), Authentications, Back-End Web Development, Web Servers, Databases, Web Applications, Secure Coding, Restful API, Application Programming Interface (API), Programming Principles, Data Structures, Debugging
Intermediate · Course · 1 - 4 Weeks