(For the Korean version, click here) We live in an era where you can spin up a server with just a single click—a “one-click setup”—on cloud platforms like AWS or GCP. It’s incredibly convenient. So, it’s fair to ask: “Does an engineer really need to know how to install an OS manually anymore?” In my … 더 읽기
(For the Korean version, click here) Introduction: Why Services Stop Without Warning When operating AWS Lightsail or small cloud instances (with 1GB to 2GB of RAM), the most common issue you’ll face is the ‘DB going down due to out-of-memory’ errors. (Though I haven’t personally encountered this on AWS Lightsail yet!) When available memory is … 더 읽기
(For the Korean version, click here) Introduction: Why Use a Personal Account Instead of the Default? When you first create an AWS Lightsail or EC2 instance, you are typically provided with a default account like bitnami or ubuntu. However, to manage a server effectively or to leave a clear trail of your own administrative actions, … 더 읽기
(For the Korean version, click here) Introduction: Why Should We Manage Hostnames? When you first access a cloud instance like AWS Lightsail via terminal (SSH), you often see a prompt like bitnami@ip-172-26-xx-xx. This default setting uses an arbitrary internal IP as the hostname. While it works, there are several critical reasons why experienced engineers change … 더 읽기
(For the Korean version, click here) Introduction: Understanding Your Environment is Key When you first log in to a terminal (SSH) after creating an AWS Lightsail or cloud instance, what should be your first task? It’s accurately identifying the “System Environment” you are working in. Linux has various distributions like Ubuntu, CentOS, and Debian. Even … 더 읽기
(For the Korean version, click here) Introduction: Registering Your Address After Building Your Home In the previous post (#1), we built a ‘home’ using AWS Lightsail and added a ‘front gate’ with a domain. However, no one can find your home if the address isn’t registered. In this second part, I will explain the SEO … 더 읽기
(For the Korean version of this post, click here) Introduction: Why Start a Technical Blog? As an engineer, I often encounter numerous troubleshooting scenarios and configurations. However, without documentation, these valuable experiences tend to fade away. To better organize my technical records and prepare for future monetization, I decided to build my own independent space using WordPress in 2026. In this post, I will … 더 읽기