The Engineer's Workshop

Graph Your Pulse with an Arduino Pulse Ox Plethysmograph

With the recent COVID-19 outbreak, I have noticed a new interested in biomedical engineering and electronics among the general population. In this tutorial, I’ll guide you through creating your own Arduino-based pulse plethysmograph.

SysAdmin

Experiments with apcupsd in Debian/Proxmox: Answers to Questions You Didn't Know You Had

While setting up an apcupsd client on Proxmox, a bunch of questions crossed my mind about the behavior of the apcupsd daemon. I did the experiments to get answers so you don't have to. I hope you find the below apcupsd Q&A helpful. Hopefully it will help you design a better homelab network.

SysAdmin

Automatically Resolve NFS Stale File Handle Errors

NFS Stale File Handles can be one of the most frustrating problems when it comes to network-attached storage (NAS). In this guide, we'll talk about methods you can use to equip your NFS clients to recover automatically from stale file handle errors.

Ghost

Save Disk Space By Setting Up Logrotate with Your Ghost Blog

The Ghost blog platform doesn't automatically set up logrotation when it is installed. As a result, Ghost will perpetually append to its log files until you run out of disk space. Here is how to fix it using the logrotate utility in Linux.

unRAID

Deploying an unRAID NFS Server

A brief guide on when and how to set up an NFS server on unRAID. Includes more advanced configuration on how to deploy an unRAID NFS server behind a firewall with static ports.

Linux

How To Set Up a WireGuard VPN Server on Ubuntu Linux

With WireGuard now officially supported by Ubuntu and integrated into the Linux kernel, I’ve decided it’s high time to for dedicated guide on how to set up a WireGuard VPN server on Ubuntu.

Linux

Ubuntu's Latest LTS RC Is Out: Here's How to Upgrade to Ubuntu 20.04 LTS Focal Fossa

Ubuntu's latest LTS is now out, bringing with it a bunch of exciting new features. In today's short guide, we'll learn how to update to Ubuntu 20.04 Focal Fossa.

Servers

LVM, Thin Provisioning, and Monitoring Storage Use: A Case Study

If you're not monitoring your server's storage use, it can quickly run away from you. Today's guide shows you how to keep an eye on things with an introduction to LVM thin provisions and monitoring disk use with Diskover, lvs, and Grafana utilities.

Raspberry Pi

How to Set Up WireGuard on a Raspberry Pi

WireGuard is rapidly becoming the go-to VPN, with even Linus Torvalds himself praising it. In fact, Torvalds is such a fan, he has merged it directly into the Linux kernel. But why is WireGuard receiving so much praise and should you use it? Keep reading to find out.

Linux

tmux for Beginners: A Quick and Easy Introduction

Boost your productivity with this tutorial in how to use tmux. Protect yourself against unexpected disconnects and improve development workflows.

Servers

How to Monitor Disk Usage and Growth with Diskover

Monitoring server storage should be part of every data center monitoring procedure. Learn how to monitor and analyze server storage use and growth with Diskover.

Networking

Securing Your Network: Configuring ACLs on an HP 1910 Managed Switch "The Easy Way"

Secure your network by learning how to set up access control lists (ACLs) on the HP 1910 (Comware) managed switch.

Web Development

How to Specify an Alternative Canonical URL in Craft CMS + SEOmatic

I recently did a bit of development for a friend's blog. In today's guide, we will learn how to specify an alternative canonical URL in the Craft CMS for use by SEOmatic. More generally, we will learn how to create a new field in Craft and then use that new field in a Craft template.

Virtualization

Expand Your Proxmox Storage: A Guide to Adding CIFS (SMB) Storage to Proxmox

Free up valuable local storage on your Proxmox server while simultaneously adding to your virtualization server's storage capacity. In this guide, we'll learn how to add CIFS storage (SMB/Samba shares) to Proxmox.

Programming

Connecting VS Code with a Remote Development Server

Previously, we discussed how to set up a remote development server that will allow you to work from wherever on whatever hardware (and OS) you choose. In today's guide, we will continue that work with how to set up remote SSH with Visual Studio Code.

esp32

Quick Start Guide to Adding ESP32 to the Arduino IDE Board Manager

The ESP32 is one of the best microcontrollers available to electronics hobbyists due to their integrated wifi, higher storage capacity, and . This is a quick guide on how to add ESP32 boards to the Arduino IDE board manager.

Linux

How to Set Up a WireGuard Client on Linux with .conf File

How to quickly set up WireGuard on a Linux client with wg-quick and a .conf configuration file.

Linux

How To Install a VNC Server On Raspberry Pi for Remote Desktop

A rapid-start guide to setting up a VNC server on an RPi for remote desktop, allowing you to quickly obtain a GUI into your homelab.

Networking

Raspberry Pi VLANs: How To Connect Your RPi To Multiple Networks

A guide for setting up VLANs on a Raspberry Pi. Use a single ethernet cable to connect your RPi to multiple networks at once! This can be used to allow your RPi to WOL devices across different subnets.

unRAID

How To Set Up WireGuard on unRAID

A quick-start guide for setting up WireGuard on Unraid. Benefits of WireGuard include easy deployment, lower latency, and improved battery life.

Programming

Develop from Anywhere: How to Set Up a Remote Development Server

Work from anywhere and develop remotely on any desktop. A beginner's guide for how to set up a remote development server.

Servers

Remote Start for Servers: How To Set Up Wake-on-LAN (WOL)

Start your unattended server wherever you are in the world over the internet. A complete tutorial on wake-on-LAN (WOL) with a reverse SSH tunnel using nothing more than a Raspberry Pi.

Homelab

The Homelab Lifeline: The Easiest Guide to Creating a Reverse SSH Tunnel

The easiest, quick step-by-step guide for accessing your homelab network remotely via a reverse SSH tunnel on a Raspberry Pi (or any other Debian/Ubuntu device).

Servers

Connecting Your Raspberry Pi Web Server To The Internet: A Beginner's Guide to Port Forwarding and Dynamic DNS

A tutorial on connecting a Raspberry Pi/Ubuntu web server to the internet. Includes how to set up ddclient for dynamic DNS and how to configure port forwarding on a router/pfSense.

Virtualization

Configuring VLANs on Proxmox- An Introductory Guide

An introductory guide to VLAN configuration on a Proxmox virtualization server so that you can group related VMs onto their own subnet.