Blogs

As an infrastructure engineer, it may be common that you have to do the same tasks over and over again when you develop servers. It is...

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...

Related terms and commands What do the symbols on the Linux command line mean？ I’m going to explain each of the symbols' meanings....

Hello! I’m going to talk about the spread syntax that can be used to expand arrays, etc. that are added to ES2015. What’s spread syntax？...

I decided to play around with ChatGPT. So, I asked ChatGPT to make the Python turtle race I made last time more exciting. The environment...

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)....

What is Wireshark？ It is one of the most famous necessary tools for network engineers. It supports Windows and macOS, and basically...

What is tfenv? The tfenv is a tool that’s for managing Terraform versions with CLI. You may have noticed the similarity in the name. The...

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...

Hello, this is the Web Speed support desk. In our infrastructure, we use a container engine called "Oracle Cloud Infrastructure...

Hello, this is the WebSpeed Support Desk. WebSpeed's web server software adopts the middleware "Nginx (Engine X)", which is implemented...