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A Developer's Take on a Hacking (RedTeam) Competition

ENKI RedTeam CTF

Already 2026, Looking Back on My Life

Time, please stop..

Redis Incident and Broadcom's Crazy Behavior

Someone please stop crazy Broadcom

Why Choosing the Right SSL Certificate CA Matters

A case study of an issue encountered during Apple Webhook setup and its root cause

Is JWT Good?

JWT is bad

SSE Timeout Issue in Azure AppGateway Environment

Why isn't the response coming...

Redis-Sentinel Introduction

Let's migrate Redis from standalone operation to a new cluster

nginx logrotate Troubleshooting

Why did this take so long...

Hosting a Minecraft Server in the Cloud

Not a child anymore

Spring Batch, Metadata Table DB Separation and Datasource Configuration

For clean DB configuration!

JavaScript, Amazing Uses of Backticks

What else is there besides template literals?

SDC 2023 - Refactoring Day

I attended Samsung Developer Conference

Let's Learn About Kotlin

They say it's better than Java?

Setting up GraphQL Server

The name sounds cool, right?

Implementing Priority Queue (Feat. Heap)

Why doesn't JavaScript have a priority queue STL?

Creating Puppeteer Web Crawler - 2

Direct implementation

Creating Puppeteer Web Crawler - 1

Have you heard of Puppeteer before?

JPQL and Native Query

ORM library commonly used with JPA

Auto-reload After Thymeleaf Source Changes

Let's set up spring-devtools together and develop comfortably

Web Technology - CORS

Let's conquer the annoying CORS

What is type: module in package.json?

Let's understand this mysterious option

MSA Design and Implementation - 02

Sharing project progress

Cryptography - Ciphertext, Masking, Hash

Encryption and hashing that I write because I get confused

Kubernetes - DB in Pods?

MSA Design and Implementation - 01

I designed the MSA project that I will be working on

Kubernetes - Deployment and Service

New concepts have arrived

Building a Kubernetes Cluster 'Directly'

A tearful story

Kubernetes Concept Summary

Let's learn about the beautifully abstracted Kubernetes!

MSA Design and Implementation - Prologue

What exactly is MSA?