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How to Resolve iptables: No chain/target/match by that name

Introduction If you encounter such error, it means that the CONFIG_NETFILTER module was not complied in your kernel. All VPS (virtual private server) that I owned from DigitalOcean, AWS, Google Cloud and other lesser-known host providers have it by default...

Asus Router Setup – Wifi Settings

Introduction The RT-AX55 is not on sales in many local computer stores and is only available through one of the local broadband providers (M1), which happens to be my current Internet provider. It has four external antennas - 2.4 GHz 2 x...

Create Helpdesk Ticketing System with Google Apps Script

Introduction When a business expands with increased headcounts, there will be more incoming IT helpdesk requests from its employees. There will always be this period of time where the single IT staff will have to answer phone calls, reply to...

Host Multiple Websites with jwilder nginx-proxy and letsencrypt-companion

Introduction Two years ago, in 2018, I was introduced to Docker by a colleague of mine who was a brilliant programmer. Thus, I started my Docker journey on my own by reading tutorials online. I was developing a WordPress website...

Change Domain for WordPress Docker Container with phpMyAdmin

Are you trying to migrate an existing WordPress Docker container to a new domain URL? One might change domain for a couple of reasons. For example, change in brand name, favorite domain in .com becomes available or change to different...

Email Verification using Laravel Fortify

Introduction It was my first attempt to use Laravel email verification to build an online web application and I shortlisted Fortify for account authentication as it provides register new and login pages out of the box. These two pages were...

Config Examples for liximomo SFTP Sync Extension – VS Code

Introduction Visual Studio Code is one of the most popular code editors these days. There are many plugins (also known as extensions) developed for Visual Studio Code in the marketplace and I am going to introduce a must-have extension for...

Ragnarok X: Next Generation

Introduction Two weeks ago, I came across a Ragnarok X advertisement on my mobile. It was the #1 top-grossing game in the Google Play store, and the release date was recent on 18th June 2021. I visited the website and...

How to Backup WordPress Database and Directory Docker Containers

In this tutorial, I am going to show you how to backup Docker containers for services WordPress and MySQL in a docker-compose.yml file. If you read enough backup articles like me, you will find that some articles relate to just...

Sihoo M57 Ergonomic Office Chair Assembly and Review

Introduction Widescreen desktop monitor with 144Hz refresh rate, RGB computer cases, mechanical keyboard, and branded gaming mice. Most of us are upgrading and following the Internet trend for the ultimate computing or gaming experience. It is more prominent since COVID-19,...
Set Up SFTP Chroot Jail using OpenSSH

Set Up SFTP Chroot Jail using OpenSSH

Posted by By Mike Goh July 29, 2022Posted inDevelopers Technical TutorialsTags: Command Line, SecurityNo Comments
Introduction You may want to use one of your existing servers as a SFTP server without subscribing to another EC2 instance. Or you would like to have multiple SFTP users/vendors on a single SFTP server to save on resources and…
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ASUS ZenWiFi (XD4) AiMesh with RT-AX55 WiFi Router

ASUS ZenWiFi (XD4) AiMesh with RT-AX55 WiFi Router

Posted by By Mike Goh July 12, 2022Posted inSoftware and Web Services ReviewsTags: NetworkNo Comments
Introduction Home mesh Wi-Fi system has been around for a few years. Mesh system does not come cheap; they range from $100 for 1-unit to $300 for a 3-unit pack. AiMesh is a router feature that is present in ASUS…
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Terraform: Deploy Application Load Balancer on AWS

Terraform: Deploy Application Load Balancer on AWS

Posted by By Mike Goh June 21, 2022Posted inDevelopers Technical TutorialsTags: Cloud, Coding, DevOpsNo Comments
Introduction In the first Infrastructure as Code (IaC) tutorial using Terraform, we explored how to install the CLI and launch an EC2 instance with external input variables. The Terraform CLI version was v0.12.29 then, but the latest version at the…
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Troubleshoot and Fix Windows Problems

Troubleshoot and Fix Windows Problems

Posted by By Mike Goh April 18, 2022Posted inDevelopers Technical TutorialsTags: ServersNo Comments
Introduction I have encountered various Windows problems and had to troubleshoot them while working as a system administrator dealing with Active Directory, Print server, and Level 1 support for end-user laptops. Some fixes are worth noting down because they are…
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DevOps Tools – Troubleshooting Guide

DevOps Tools – Troubleshooting Guide

Posted by By Mike Goh March 28, 2022Posted inDevelopers Technical TutorialsTags: DevOps, DockerNo Comments
Topic Jenkins, From Zero To Hero Become a DevOps Jenkins Master Sourcejenkins/centos7/DockerfileErrorStep 2/7 : RUN yum -y install openssh-server---> Running in 7e18f84a2754CentOS Linux 8 - AppStream 391 B/s | 38 B 00:00Error: Failed to download metadata for repo 'appstream': Cannot…
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Java Zelo V2 Folding Bicycle Cycling Tips

Java Zelo V2 Folding Bicycle Cycling Tips

Posted by By Mike Goh March 23, 2022Posted inDaily Rants and Excitement BlogTags: FunNo Comments
Introduction Yes, I admit I am cycling frantic now. I invested in a helmet, bag, lubricant, and even a pair of cycling shorts. I ride at least twice a week to and fro to my workplace, and my legs will…
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NAS: Rebuild Raid with SSD using Hard Drive Adapter (caddy)

NAS: Rebuild Raid with SSD using Hard Drive Adapter (caddy)

Posted by By Mike Goh January 13, 2022Posted inDevelopers Technical TutorialsTags: NetworkNo Comments
Introduction I knew but never bothered with NAS (Network Attached Storage) until 2015. It is an era where smartphones are getting smarter, and my desktop is still running on the mechanical hard disk instead of SSD. The more adventurous individuals…
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Use SensMax API to Get Data from Live Reports with cURL

Use SensMax API to Get Data from Live Reports with cURL

Posted by By Mike Goh November 1, 2021Posted inDevelopers Technical TutorialsTags: Coding, WebNo Comments
Introduction The Covid-19 pandemic has brought many changes to our daily lifestyle. Mask on, and social distancing is one of many. In my country, Singapore, every shopping mall, big or small attraction, must adhere to government restrictions on capacity limits.…
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Sihoo M57 Ergonomic Office Chair Assembly and Review

Sihoo M57 Ergonomic Office Chair Assembly and Review

Posted by By Mike Goh October 13, 2021Posted inSoftware and Web Services ReviewsTags: FunNo Comments
Introduction Widescreen desktop monitor with 144Hz refresh rate, RGB computer cases, mechanical keyboard, and branded gaming mice. Most of us are upgrading and following the Internet trend for the ultimate computing or gaming experience. It is more prominent since COVID-19,…
Read More
Track Laptop Asset Handover using Google Apps Script

Track Laptop Asset Handover using Google Apps Script

Posted by By Mike Goh September 13, 2021Posted inDevelopers Technical TutorialsTags: Cloud, CodingNo Comments
Introduction We use Google Apps Script because some companies use Google Workspace (formerly G Suite) for their day-to-day work, and it cost nothing to set up as there is no hosting and annual maintenance fees. The authentication is seamless as…
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