introduction I’ve always been intrigued by the idea of creating a home data center with Raspberry PIs as a computable instances. However, managing individuals node with SD cards is not fun 😼. So decided to try PXE (Preboot Execution Environment) booting. Instead of dealing with each SD card individually, PXE protocol lets me manage all my RPis from one central server, making updates and further patches easier. In this post, I’ll share how you can set up PXE booting for your RPi fleet and enjoy these benefits to :)...

UniFi Dream Machine In this blog post, I’ll guide you through the process of setting up a DHCP server on your Synology NAS within a subnet created on a UniFi Dream Machine Special Edition (UDM SE). Synology NAS Prerequisites Before we start, ensure you have the following: UDM SE: UniFi Dream Machine Special Edition. Synology NAS: Network Attached Storage device from Synology. Raspberry Pi: Any model will suffice. Ethernet cables: To connect your devices....

RPI 5 on Ubuntu 24.04 (headless): Connect to WiFi / Mobile Hotspot Introduction In my free time, I enjoy tinkering with my home lab, exploring new projects and challenges. Recently, I decided to connect my Raspberry Pi 5 to a mobile hotspot—a seemingly straightforward task. However, it turned out not so smooth. In this post, I’ll walk you through how I resolved the error brcmfmac: brcmf_set_channel: set chanspec fail, reason -52 and successfully connected Raspberry Pi to a mobile hotspot....

Introduction UML diagrams play a crucial role in software engineering for visualizing and structuring information. This article explores the seamless automation of UML diagram creation using ChatGPT (LLM) and the PlantUML tool. The aim is to provide a valuable resource for Solutions Architects and engineers looking to efficiently communicate and pitch ideas through visual representations. In this tutorial, we’ll focus on visualization of the high-level system design of Netflix. By the end of this article, you’ll have a clear understanding of how ChatGPT and PlantUML can be harnessed to expedite the visualization of systems design while saving time on learning PlatUML syntax....

EBS Volumes Storage volumes you can attach to your EC2 instances. Mission Critical 🟢 production workloads. designed for mission critical workloads 🟢 highly available. automatically replicated within a single AZ to protect against hardware failures. 🟢 scalable. dynamically increase capacity and chnage the volume type with no downtime or performance impact to your live systems. EBS Volume Types: Solid State Disk General Purpose SSD (gp2) - legacy 3 IOPS per GiB, up to maximum of 16,000 IOPS per volume regardless of how large the volume is, the maximum number of input/output operations the storage system can handle for that volume is 16,000 per second....