Blogs

I would like to try using tflint for static analysis of Terraform code in this article. What is tflint? tflint is an open-source linter...

N+1 Problem Suppose such a relationship was set up. class Bolg { public function comments(): HasMany { return $this->hasMany(Comment::cla...

Cloud servers are widely adopted by many companies and organizations due to their cost-effectiveness and convenience. However, there are...

In recent years, the use of cloud services has become the standard for companies and organizations. However, there are many cases where...

You might wonder how everyone checks the process status of their Windows machines. For a quick look, Task Manager or Resource Monitor is...

The other day, I had to install ImageMagick on Linux, it was quite difficult because it was my first time to install it. First of all,...

Speaking of December, there's Christmas. It's been a long time since Santa stopped visiting me, but the glittering cityscapes this time...

When you want to check the resources, but it's a hassle to check them on the console if they are located in multiple regions… In this...

What is permission? Directories and files on Linux have defined permissions. Permissions are the rights to manipulate directories and...

When you want to check the resources, but it's a hassle to check them on the console if they are located in multiple regions… In this...

Did you know that you can change the message you see when you do ssh connect? /etc/motd The contents of the /etc/motd file are output by...

I’m going to make turtles compete with each other by using the Python library turtle. You can do a lot of things with turtles like the...

Introduction First of all, the “public” of the public function is called an access modifier, access modifiers allow properties (variables...

When you have many EC2 instances, you may forget to stop instances that you are not using. If you keep running the instances that aren't...

What is goacl The goacl is a CLI tool written in Golang. You can view a list of AWS security groups and add rules for specific groups....

In this article, I’m going to introduce you to the differences between Wasabi (Hot cloud storage) and Amazon S3 (AWS’s object storage)....

Many of you may use “ll” instead of the “ls” command. In this article, I’m going to explain what “ll” is and what you should know about...

I’m going to introduce Linux commands and options that are smartly used. For example, $ ps auxwwf | grep httpd | grep -v "grep” This one...

What are constructors? A constructor is a method that is always executed when a class is instantiated (made into an object). An usual...

Have you experienced the MySQL slow.log file that has been accumulating for some time? Don’t you worry, you can use log rotation in this...