Posts in the Network and IT System category
If you've ever tried to start VMware on a Linux machine and hit an error about vmmon or vmnet modules failing to load, there's a good chance Secure Boot is the culprit. This guide walks you through exactly what's happening and gives you two ways to fix it — the quick-and-easy way and the cleaner lon
Every Linux server failure I’ve witnessed from disk issues starts the same way: the root filesystem slowly fills up. No alarms. No drama. Just creeping usage until something breaks.
Uptime Kuma → n8n → Slack Alert Workflow
Goal
If you are running ERPNext v15 and want real-time Slack notifications whenever stock movements occur, this step-by-step guide shows you exactly how to set up webhook-based alerts for Material Issues, Material Transfers, and Purchase Receipts. You will also learn how to avoid the common Jinja templat
Disable IPv6 on Linux
Firewalls are a foundational component of any secure Linux server environment. On Ubuntu and other Debian-based distributions, UFW (Uncomplicated Firewall) provides a straightforward yet powerful interface for managing iptables rules without requiring deep knowledge of low-level networking syntax. I
This page documents the complete, final configuration of a secure homelab environment built around WireGuard, Raspberry Pis, UFW, AdGuard Home, Fail2Ban, n8n workflow automation, and Uptime Kuma. It is structured as a top-to-bottom technical reference, covering design intent, implementation details,
This document is the final, stable Standard Operating Procedure (SOP) for a small production homelab built on WireGuard, AdGuard Home, Docker monitoring, and UFW. It reflects all configuration decisions, corrections, and lessons learned through implementation and testing. It is intended to serve as
Production Monitoring & Security Automation Runbook
Self-hosting email is one of those projects that sounds straightforward until you actually attempt it. Between TLS configuration, reverse proxy behavior, Autodiscover requirements, and the expectations of modern mail clients, it is remarkably easy to end up with redirect loops, broken SMTP connectio
Running WordPress behind a modern, automatic HTTPS reverse proxy is more accessible than ever with Docker, Portainer, and Caddy. What used to require manual certificate management, complex nginx configurations, and careful coordination between services can now be accomplished with a single Docker Co
If you want to install Inkscape on Ubuntu using an AppImage, this step-by-step guide covers everything you need — from installing the required FUSE dependency to creating a fully integrated desktop shortcut that appears in your application menu with the official Inkscape icon. Whether you are runnin
Setting up a new Windows 11 PC almost always requires signing in with a Microsoft account during the out-of-box experience (OOBE). While a Microsoft account offers genuine benefits — syncing settings, files, and preferences across devices — many users have perfectly valid reasons to prefer a local a
How to Force Restart Your iPad (Hard Reset)
On April 1, 2025, I started a new role at Joe Coffee as a Fulfillment Specialist. Yes, April Fools’ Day — and no, it is not a joke. It is very real, and I could not be more excited about it.
If your tablet is experiencing issues after a configuration change or a corrupted software update, don’t worry — there’s a simple workaround. Performing a hard restart can clear the problem and get your device back up and running quickly.
If you are upgrading from Arista Edge Firewall 7.0.0 to 7.1.1 and your system uses Realtek Ethernet devices, you may encounter a critical issue: Linux Ethernet drivers trigger kernel panics when Energy-Efficient Ethernet (EEE) is enabled. This guide walks you through every step to apply the official
📰 Reference: CBS News: Microsoft CrowdStrike Outage — Blue Screen of Death Fix
I recently migrated all of my Google Drive data to my own self-hosted Nextcloud server—and I haven’t looked back. Now, I have complete control over my personal data. Everything is stored securely on my own hardware, rather than on third-party platforms like Google Drive, OneDrive, or iCl
As part of our ongoing improvements at the Garyland cottage, we recently completed an important network infrastructure upgrade — relocating all networking equipment from an open shelf to a secure, enclosed cabinet. This change was driven by two key goals: improving overall network security by keepin
Server security is something I take seriously. I recently upgraded my entire network protection setup by deploying a dedicated hardware firewall using a BOSGAME E1 Mini PC. This compact machine handles multi-server firewall duties with ease, and I also installed WireGuard VPN directly on the firewal
I finally got DNS-over-HTTPS (DoH) working with Cloudron AdGuard Home. The key issue is that AdGuard Home will not accept connections on the encrypted DNS port until you add an IP address or Client ID to the Allowed Clients list. In this guide I use a Client ID. Follow the steps below to configure D
I built another mini computer for Sunrise Village and added another network card to my mini computer for internal and external network. Not only that, but I also set Internal to “bridge” and set my Modem wire to firewall “external” and then firewall “internal” to a 1 gigabit switch. So I can put mor
Fail2Ban is a free Python tool that helps protect Linux servers from brute-force attacks. It’s especially useful for securing SSH. With Fail2Ban, you can automatically block IPs that try to guess passwords on your server.
The excessive wiring and the way everything was stacked weren’t viable long-term solutions. I approached my supervisor to request an upgrade to a more secure and durable setup. Installing a network cabinet would help cut down on dust buildup and prevent overheating. Plus, adding an exhaust fan to th
Maintaining Docker containers is easy—in theory. In practice, keeping your stack up-to-date with the latest images can be tedious and time-consuming. Here’s a solution: Watchtower can update containers automatically, and with Ntfy, you get real-time notifications right on your phone or desktop whene
I am using Ntfy for my SSH alert and watchtower update. It is pretty cool to have this feature, so I can know who is accessing my server without my authorization. And know my docker needs to be updated as well.
Step by step:
Building a Dockerfile on Windows 11 is a common workflow for containerized development. Here's how you can do it—step by step:
I upgraded his PC, Graphic Card, Power Supply, RAM, WiFi6 Network Card to improve speed and stabilized his golf game.
This is most important for me to work on troubleshooting with PC Sticks. So I don't want an expose password that i type. This is great.
Goal to set up
What a wild ride! As someone who cares deeply about keeping ads and trackers away, I run not one, not two, but three Adguard Home DNS servers for my network and my work and a few trusted friends. Things were smooth…until today’s wake-up call.
We have replaced our old 51-inch TVs with new 55-inch models, enhancing both display size and quality. These upgraded TVs are now powered by YoDeck digital signage software—a cost-effective solution that eliminates the need for pricier alternatives. To date, YoDeck has been successfully deployed on
<!-- wp:paragraph --><p>Learn how to safely clean dust from your gaming PC with our step-by-step guide. Discover before and after results, maintenance tips, and how regular cleaning improves performance and cooling.</p><!-- /wp:paragraph -->
I switched my led light from white to purple and then added some mod chip for rapid fire, and it's working out really well!
In 2017, I did this on my desk to help my anxiety when I have too much wire in one area. This helps me feel smoother in the room.
Today, I turned off the DNS port 53. Since we have been cutting off our store's DNS server, it has been a DNS amplification attack. So I found out that my Router does have a DNS Proxy, My DNS Server does have HTTP over TLS and DNS-over-HTTPS. Everything is working and attacking is currently stopped
One of our employees accidentally dropped their tablet while performing work-related tasks. Unfortunately, the device was not equipped with a protective case at the time, which increased the risk of damage. After reviewing the situation, we recognized that this oversight was our responsibility, as w
I have removed the television and replaced the screws and anchors. There is a significant amount of dust behind the left-hand TV, and I haven't yet cleaned the right-hand side. So, I vacuumed from the left to the right, then when we upgraded the TV, I will vacuum from the left to the right, which ma
1. Extract the Intel Rapid Storage Technology drivers to the USB flash drive
Indeed, it was the correct decision. Comcast Business has recently upgraded our plans to 250 MBPS, automatically upgrading with download speeds reaching 500 MBPS and upload speeds at 200 MBPS. I have decided to relocate my server from medical to another location that offers the highest upload speeds
If you’re looking to run a robust relational database in your Dockerized environment, MariaDB is an excellent open-source choice. With Portainer, managing your databases and application stacks becomes super easy—even with little Docker experience. In this post, I’ll walk you step by step through dep
PhpMyAdmin is easy to set up for any app and fix the table database or troubleshoot. So, we will set up PhpMyAdmin with NGINX SSL secure for our HTTPS. Due to the possibility of a grabber username and password exploit, we would prefer not to expose this on HTTP.
This baserow is my absolute favorite, it's more like a spreadsheet with more options and an easy-to-use database. It also had a Grid and Form and a Gallery and a Calendar! It's great for our list of things to do.
Docker-compose is my go-to for secondary or distributed servers. It's better than docker run because it's more clean and organized and easier to set up. And one time, too.
IP address unban
When you're running apps with Docker Compose, your data is the heart and soul of your services—databases, media files, configurations, and more. Without a solid backup and restore plan, a simple mistake (or disk failure!) can lead to a world of pain. Here’s a step-by-step guide to properly back up a
Log in to your Comcast Business Account.
This document presents Docker compose version 3.8 for Immich Latest (1.99.0). I just changed the volume to the correct path because I want them to save in our large storage data and permission user so that any users can't see our file except root.
Nextcloud Version: 28.0.3
Make a file called "scriptmailssl.sh" and open the nano file editor. Paste these codes and save it!
Delete Nextcoud.log to fix the error, but it will come back again and make sure you fix the error, so it won't pop up again. This is similar to the engine light.
On Sept 2023, I established this network, and unfortunately, it experienced the most severe condition of overheating due to the presence of grease. I upgraded it to a cabinet in October 2023, and it is currently functioning flawlessly. All the devices are fan less, resulting in a reduction in dust a
If you are looking to remote your server from home, you can, but you cannot simply install OpenSSH with a password, which is very insecure. I strongly recommend using type Ed25519 ssh, which is the most secure and fast access to ssh. I recommend checking out this website. Follow the instructions on
Just wrapped up a much-needed network upgrade at Anthem Coffee & Tea! We’ve moved from a basic shelf to a secure, professional cabinet. This isn’t just about looks—it’s about reliability and maintenance.
This attack trigger was found on October 16, 2023, when I received an email that my server was nearly full. This is not a typical occurrence. Therefore, I discovered that my AdGuard Home DNS Server had been compromised, and that a significant number of IP addresses exceeding 20K were targeted specif
I am deeply grateful to Lady Bonnie for allowing me to undertake a DIY project at her residence. For this project, I utilized my personal Xfinity modem in her living room, which is registered to my account—I did not use her internet service at any time. Additionally, at her request, I custom-made a
This location is simple and clean up to fix network, and They do have Camera Security, but COX just discontinued these which is crazy. So I removed it from the shelf and removed the old Phone Modem and Router and Security Router. We only need on the shelf is Business Router and Access point and Mode
I've been at Litchfield for five and a half days now. I went through this real challenge experience of going through crazy OCD trigger… So I decided to take all the old Discontinue servers (Camera Security and Firewall) COX wasn't doing them anymore. So I took everything down and installed a Busines
This version is not PRO. Please note that. Soon, PRO will be coming. I just set up RustDesk pro with WebGui a couple of months ago.
I have been using Grammarly for my work and to strengthen my writing skills. I was looking for something cheaper and more affordable, and I found this LanguageTool, which offers an API on Docker, and it works great. We won't get premium, though… they're not yet available for self-hosted premium.
My goal to make my Nextcloud to become Google Workspace because my goal is our data most important to privacy with our data sensitive. And I would like to purchase free instead of paid Google Workspace because we have our server, and we use it for IT documents and resources.
If you’re self-hosting Nextcloud using Docker, integrating Redis as a caching and file locking service is a must for better speed and reliability. Portainer makes managing Docker super easy, especially with its user-friendly "Stacks" feature. In this post, you'll learn step by step how to:
VaultWarden is a lightweight, open-source Bitwarden server. Deploying it on Docker with Portainer and securing it via Nginx Proxy Manager ensures easy access, security, and maintenance for your password manager. While MariaDB isn’t officially supported instead of SQLite, experienced users can try it
Learn how to set up Portainer with Nginx Proxy Manager in this step-by-step tutorial. First, install Docker and Docker Compose on your Linux server, then create and configure Portainer using Docker Compose via SSH.
Richard Applegate