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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.
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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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: Network2 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,…
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