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Posts by Mike Goh

About Mike Goh
GSM, Owner of Techsch.com. IT backbone of Techsch.com, when he's awake. Personal hobbies include extreme activities such as sleeping and headbanging. His computer keyboard bears witness to his utter dedication in these two pastimes.
5D4N Family Trip Itinerary in Penang – June 2023

5D4N Family Trip Itinerary in Penang – June 2023

Posted by By Mike Goh July 10, 2023Posted inDaily Rants and Excitement BlogTags: Family, 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…
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Stock Picker – Valuation Metrics Analysis

Stock Picker – Valuation Metrics Analysis

Posted by By Mike Goh May 4, 2023Posted inDevelopers Technical TutorialsTags: Software, 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…
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How to and Benchmark of awk, grep and sed on Multiple (AND) Keywords

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

Posted by By Mike Goh March 5, 2023Posted inDevelopers Technical TutorialsTags: Coding, 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…
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Linux Troubleshooting Guide

Linux Troubleshooting Guide

Posted by By Mike Goh February 7, 2023Posted inDevelopers Technical TutorialsTags: Command Line, Servers1 Comment
Last updated 14 Nov 2024 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…
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Feng Shui for Living Room using Bagua Map

Feng Shui for Living Room using Bagua Map

Posted by By Mike Goh January 8, 2023Posted inDaily Rants and Excitement BlogTags: Family, Fun1 Comment
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…
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Create a High Availability Setup – HetrixTools, PagerDuty, Python, Cloudflare

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

Posted by By Mike Goh October 31, 2022Posted inDevelopers Technical TutorialsTags: Backup, 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…
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MindsDB – Machine Learning with MySQL Tables Using PHP

MindsDB – Machine Learning with MySQL Tables Using PHP

Posted by By Mike Goh October 10, 2022Posted inDevelopers Technical TutorialsTags: Coding, 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…
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Set Up Chef Infra Server, Workstation, Bootstrap Node and Create Cookbook

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

Posted by By Mike Goh August 30, 2022Posted inDevelopers Technical TutorialsTags: DevOps, 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…
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Install Splunk on Linux with Trial to Free License

Install Splunk on Linux with Trial to Free License

Posted by By Mike Goh August 13, 2022Posted inDevelopers Technical TutorialsTags: DevOps, 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…
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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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