Makson Lee - DevOps, IoT, and Cloud Notes

Add a New KVM Storage Pool and Move Existing VMs to It on Ubuntu 24.04

In a previous post, I showed how to set up KVM and Cockpit on Ubuntu 24.04. That setup works well […]

After deploying a self-hosted Nominatim server, I noticed that search result ranking was different from the public Nominatim service. For

In a previous post, I configured a WireGuard site-to-site VPN between my MikroTik hEX router at home and OPNsense 25.7

I installed WireGuard on an Ubuntu 26.04 EC2 instance and connected to the instance through an AWS SSM Session Manager

AWS creates a default VPC in many Regions. It is convenient for quick testing because it already has public subnets,

This post shows how to deploy OpenStreetMap-related services on a separate Ubuntu 26.04 server. The OSM service domain used in

When I connected to an Ubuntu 24.04 server using PuTTY, I could open vi, enter insert mode, and paste text

PostGIS adds spatial database features to PostgreSQL. With PostGIS, PostgreSQL can store geographic data such as coordinates, points, routes, and

Makson Lee / April 30, 2026

In this post, I will show how to safely bulk delete ThingsBoard devices by name prefix using Python. This is

Makson Lee / April 30, 2026

In this post, I will show how to run a Python-based stock data collector that publishes U.S. stock market data