Makson Lee - Page 19 of 24 - DevOps, IoT, and Cloud Notes

How to Set Up Free Email with Zoho Mail and Your Custom Domain Using Cloudflare DNS

Makson Lee / June 13, 2025

Want a professional email like you@your_domain without paying for Gmail or Outlook? With Zoho Mail’s Forever Free Plan, you can […]

Makson Lee / June 13, 2025

In this guide, you’ll learn how to install and configure OpenLDAP on Ubuntu 24.04, and expose it securely using HAProxy

After filtering and transforming telemetry from ThingsBoard into a clean Delta Lake table, you can begin exploring the data interactively

If you’ve already followed my previous guide to install JupyterLab, you might wonder how to use it for working with

Introduction Once you’ve synced ThingsBoard data into Delta Lake, including both entity data from PostgreSQL and time-series data from Cassandra,

This post shows how to keep a Delta Lake table synchronized with a PostgreSQL table using only Spark SQL and

This guide walks you through setting up Apache Kyuubi on a single-node Ubuntu 24.04 server, running on top of an

This quick-start example builds on our previous post about installing JupyterLab on Ubuntu 24.04, where we configured a secure, password-protected

Running JupyterLab as a headless server on Ubuntu is perfect for data science, education, or research. In this guide, we’ll

This guide shows how to mirror time-series data stored in ThingsBoard’s Cassandra database into a Delta Lake table using spark-sql.