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Winnie Ondara

Linux System Administrator

Winnie is a seasoned Linux Systems administrator, currently specializing in writing technical Linux tutorials. With over seven years of experience in deploying and working with major Linux distributions such as Ubuntu, Debian, RHEL, OpenSUSE, and ArchLinux, she has written detailed and well-written "How to" Linux guides and tutorials. Winnie holds a Bachelor's Degree in Computer Science from Masinde Muliro University, Kenya and resides in Nairobi, Kenya. She is an expert in authoring Linux and DevOps topics involving Docker, Ansible, and Kubernetes. She currently works as a freelance technical writer and consultant. In her previous roles, she worked in the capacity of an IT support specialist and Linux administrator. Her key roles included offering level 1 and 2 support to both in-house and remote staff and managing and monitoring Linux servers.

Articles by author

Published on Jan 16, 2024 Updated on Jan 22, 2024

How to Create a Database in PostgreSQL [CREATE DATABASE, createdb]

This step-by-step tutorial demonstrates how to create a database in PostgreSQL, using CREATE DATABASE or createdb command.

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Published on Dec 22, 2023 Updated on Nov 7, 2024

How to Install PostgreSQL on Ubuntu 22.04 | 4 Steps

This step-by-step tutorial demonstrates how to install PostgreSQL on Ubuntu 22.04, including how to create a new database and tables.

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Published on Dec 14, 2023 Updated on Sep 27, 2024

How to Install TensorFlow on Ubuntu: CPU-only or NVIDIA GPU

This tutorial demonstrates how to install TensorFlow on Ubuntu 22.04 in two ways: CPU-only configuration or with an NVIDIA GPU.

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Published on Nov 3, 2023 Updated on Dec 6, 2023

How to Use numpy.where Function [With Examples]

This tutorial illustrates how you can use Python numpy.where function, along with some practical examples.

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Published on Oct 9, 2023 Updated on Jan 24, 2024

Postgres Show Tables: How to Create a Table in PostgreSQL

This tutorial will show you how to create and show a table in PostgreSQL in various ways.

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Published on Sep 14, 2023 Updated on Sep 6, 2024

How to Remove Docker Images | Step-by-Step

This tutorial demonstrates different ways to remove Docker images on your system, including how to remove all Docker images.

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Published on Sep 7, 2023 Updated on Feb 9, 2024

Virtualization vs. Containerization | Differences + Pros and Cons

This comprehensive guide compares virtualization vs containerization technologies, exploring their pros and cons and how they compete in different aspects.

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Published on Jul 18, 2023 Updated on Jan 25, 2024

How to Install Elasticsearch on Ubuntu 22.04 | Step-by-Step

This step-by-step tutorial demonstrates how to install ElasticSearch on Ubuntu 22.04, as well as how to manipulate data using the Elasticsearch REST API.

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Published on Jul 10, 2023 Updated on May 14, 2024

Debian 12 "Bookworm" Release | What's New?

This is a review of Debian 12 Bookworm. It highlights new features and major enhancements offered by the release.

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