Five Rules of Thought

You must decide what you want
See that thing has happened
Do not hesitate
You must have confidence
Persistence brings results

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Deploying a Web Server on UpCloud using Terraform Modules

In my earlier post , I shared an example of deploying UpCloud infrastructure using Terraform from scratch. In this post, I want to share how to deploy the infrastructure using available Terraform modules to speed up the set-up process, especially for common use cases like preparing a web server. For instance, our need is to deploy a website with some conditions as follows. The website can be accessed through HTTPS. If the request is HTTP, it will be redirected to HTTPS. There are 2 domains, web1.yourdomain.com and web2.yourdomain.com . But, users should be redirected to "web2" if they are visiting "web1". There are 4 main modules that we need to set up the environment. Private network. It allows the load balancer to connect with the server and pass the traffic. Server. It is used to host the website. Load balancer. It includes backend and frontend configuration. Dynamic certificate. It is requ...

Armin or Commander Erwin

In the moment of conflict in the scout team, who will be revived?

What's Good About Strapi, a Headless CMS

Recently, I've been revisiting Strapi as a solution for building backend systems. I still think this headless CMS can be quite useful in certain cases, especially for faster prototyping or creating common websites like company profiles or e-commerce platforms . It might even have the potential to handle more complex systems. With the release of version 5, I'm curious to know what updates it brings. Strapi has launched a new documentation page, and it already feels like an improvement in navigation and content structure compared to the previous version. That said, there's still room for improvement, particularly when it comes to use cases and best practices for working with Strapi. In my opinion, Strapi stands out with some compelling features that could catch developers' attention. I believe three key aspects of Strapi offer notable advantages. First, the content-type builder feature lets us design the data structure of an entity or database model , including ...

Kenshin VS The Assassin

It is an assassin versus assassin.

How To Verify Phone Number for Free Using WhatsApp

If you have a product or business that maintains user information like phone numbers, verifying the validity or ownership of the phone number could become important, as the phone number can be used as an authentication method or targeted marketing channel. The typical phone verification procedure is by generating a code or OTP in our application, sending that OTP to the user's phone, and then the user should insert the OTP in our application for verification. The OTP can be sent to the users through services like SMS or WhatsApp that require a valid phone number. For internet-based communication, WhatsApp has become the de facto standard for sending the OTP. WhatsApp requires its users to have a valid phone number during account creation, and it already has a huge number of users, approximately 3 billion in 2025. Using that common procedure, WhatsApp will charge us for each OTP sent. The cost depends on the country of the target phone number. For Indonesia...

Ejabberd VS Openfire VS "handmade"

This month, I have a project from my laboratory about Smart Gateway . What smart gateway is it? It's a smart gateway system that allows multi-client chat not only using the internet but also SMS. Does it seem weird? Yeah, it will be used for rural areas where it is difficult to get internet access but still has SMS service. In this project, I take part in internet module development. There must be a server that can serve some users. There are some applications that can be installed on the server to build a chat server. Firstly, I chose Ejabberd . The installation process for this application was so long. I installed it from its source code. This program was made by Erlang programming language. That's a new thing for me. I should install Erlang's compiler. I found the wrong site that gave difficult steps and I followed that difficult steps to install Erlang's compiler until I got stuck. Then, I found out that the Ubuntu repository provides it. After that, I installe...

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