Mike Goh - TechSch

5D4N Family Trip Itinerary in Penang – June 2023

By Mike Goh July 10, 2023Daily Rants and Excitement BlogFamily, FunNo Comments

Background We had initially planned to visit Genting Highlands with my parents and my brothers' family. Due to the late decision, all hotels were booked due to the school holiday, so we changed the vacation destination to Penang for my…

Stock Picker – Valuation Metrics Analysis

By Mike Goh May 4, 2023Developers Technical TutorialsSoftware, WebNo Comments

Introduction Most people will invest in equities at some point, unless you are someone who doesn't believe in equities and will put your savings in the bank for principal sum assurance. The brokerage system that you order the stocks should…

How to and Benchmark of awk, grep and sed on Multiple (AND) Keywords

By Mike Goh March 5, 2023Developers Technical TutorialsCoding, Command Line4 Comments

Introduction grep is useful for searching and matching text and regular expressions in one or more files on Linux. One example is finding information in logs that is related to a particular incident. We will provide a unique identifier such…

Linux Troubleshooting Guide

By Mike Goh February 7, 2023Developers Technical TutorialsCommand Line, ServersNo Comments

During my learning of DevOps tools, I have encountered numerous problems. These difficulties can range from solving the dependency requirement to installing the tools themselves. The majority of solutions to issues are found on the Internet, but some require more…

Feng Shui for Living Room using Bagua Map

By Mike Goh January 8, 2023Daily Rants and Excitement BlogFamily, FunNo Comments

Introduction Do you believe in feng shui? Feng shui also known as Chinese geomancy is a practice which uses energy (chi) to harmonize individuals with their surroundings. Before my wife and I moved into our new home, we asked a…

Create a High Availability Setup – HetrixTools, PagerDuty, Python, Cloudflare

By Mike Goh October 31, 2022Developers Technical TutorialsBackup, ServersNo Comments

Introduction This tutorial will cover three things: Webhooks in Python with Flask, integrating PagerDuty with HetrixTools monitoring service, and using the Cloudflare DNS API with the⁣ cURL command. Python is one of the top programming languages for developers, and we…

MindsDB – Machine Learning with MySQL Tables Using PHP

By Mike Goh October 10, 2022Developers Technical TutorialsCoding, SoftwareNo Comments

Introduction Machine learning has been around for a long time, and the emphasis on making sense of data was a selling point for many small and medium businesses. My first blush with machine learning was when I was assigned the…

Set Up Chef Infra Server, Workstation, Bootstrap Node and Create Cookbook

By Mike Goh August 30, 2022Developers Technical TutorialsDevOps, ServersNo Comments

Introduction Chef is an infrastructure as code (IAC) automation tool used to configure downstream clients known as nodes. This is one of the many configuration management tools used in DevOps among Ansible and Puppet. There are currently more jobs requiring…

Install Splunk on Linux with Trial to Free License

By Mike Goh August 13, 2022Developers Technical TutorialsDevOps, SoftwareNo Comments

Introduction I have heard of Splunk - a log analysis tool but having worked in the IT industry for last 15 years, I never had to work with it. However, one of my new job requirement as a Site Reliability…

Set Up SFTP Chroot Jail using OpenSSH

By Mike Goh July 29, 2022Developers Technical TutorialsCommand 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…

Posts by Mike Goh