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 Apr 16, 2026 Updated on Apr 17, 2026

Grep Command in Linux: Syntax, Examples & Options Guide

Master the grep command in Linux: learn syntax, options, and practical examples to search, filter, and analyze text, logs, and files efficiently.

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Published on Apr 12, 2026 Updated on Apr 13, 2026

Ubuntu 26.04 LTS: New Features & Release Date

Ubuntu 26.04 LTS Resolute Raccoon brings Wayland default, Linux Kernel 7.0, GNOME 50, better AMD support, security upgrades, snap improvements for 2026 LTS rel.

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Published on Mar 25, 2026 Updated on Mar 26, 2026

Docker Copy Command: Copy Files and Directories in Docker

Learn how to use the Docker COPY command with practical examples. Copy files, directories, and apply best practices for secure, efficient Docker builds.

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Published on Mar 3, 2026 Updated on Mar 5, 2026

How to Install Prometheus on Ubuntu 24.04

Learn how to install Prometheus on Ubuntu 24.04, configure Node Exporter, and query metrics with PromQL for Kubernetes and DevOps monitoring.

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Published on Feb 23, 2026 Updated on Apr 10, 2026

How to Install Dokploy on Ubuntu 24.04

Install Dokploy on Ubuntu 24.04 with Docker & Traefik. Learn self-hosted PaaS setup, SSL, firewall config, and deploy apps on your VPS step by step.

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Published on Feb 20, 2026 Updated on Mar 9, 2026

How to Secure a Linux Server (11 Tips)

Boost Linux server security with essential hardening tips: updates, SSH keys, firewall, Fail2ban, SELinux, backups, and proactive monitoring best practices.

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Published on Feb 5, 2026 Updated on Feb 24, 2026

How to check CPU, Memory, and Disk Usage in Linux

Learn how to monitor CPU, memory, and disk usage in Linux using top, htop, vmstat, df, du, and advanced CLI monitoring tools for better system performance.

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Published on Jan 21, 2026 Updated on Jan 21, 2026

How to Uninstall Packages in Ubuntu Quickly

Learn how to safely uninstall software packages in Ubuntu using APT, dpkg, Snap, Flatpak, and the App Center. Keep your system clean and optimized.

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Published on Jan 12, 2026 Updated on Mar 27, 2026

Advanced Linux Commands for Intermediate Users

Master advanced Linux commands for intermediate users, covering text processing, process control, networking, and system administration to manage servers efficiently.

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