Materials by Happy Afopezi

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Tutorial

PostgreSQL Cluster Management at CosmoTech Inc.

Master PostgreSQL cluster initialization, configuration, and maintenance through hands-on database administration scenarios. Install PostgreSQL 16 and set up four clusters for development, UAT, production, and backup environments.

PostgreSQL Cluster Management at CosmoTech Inc. (cover image)
Tutorial

Managing Files and Directories - Dev, Test, and Production Environments

Learn essential Linux file and directory management commands by organizing a software project across Development, Testing, and Production environments. Practice copying, moving, renaming, and deleting files with real-world scenarios.

Managing Files and Directories - Dev, Test, and Production Environments (cover image)
Tutorial

Linux Basics - Essential Commands for Beginners

Learn fundamental Linux commands through hands-on practice. Master file system navigation, create and manage files and directories, edit with vi, understand permissions and ownership, and work with absolute and relative paths. Perfect for complete beginners!

Linux Basics - Essential Commands for Beginners (cover image)
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Playground on  Networking
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