Blogs

As of June 30, 2024, the community support for "CentOS 7" will end (EOL), posing a significant challenge for many users. Of course,...

In this tutorial, I’m going to create a virtual environment using Python's venv. What is venv？ venv is a module introduced in Python...

Last time, I wrote about introducing the Ansible tool and its installation. In this article, I'd like to delve into how to actually run...

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

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？...

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...

Hello! The “uptime” command is one of the most common commands I use. This command is used to check the system uptime of Linux-based OS....

The “history” command is being used for displaying a list of commands that have been run. The history command Display a list of commands...

Hello! I’m going to talk about the vi command which is for editing files in Linux. There are so many options…! The vi command is a...

In this article, I’m going to talk about how to write a template file that’s necessary to execute CloudFormation. What is CloudFormation？...

I’m writing this article for you who might be tired from working so hard. I hope this will help you to refresh a bit! Environment cat...

The df command is a command to see how much free disk space is left and manage disk space. Since a lot of data remains in the disk day by...

Hello, Recently I had a chance to deal with symbolic links when I had to renew an SSL certificate. Therefore, when I was doing research...

Hello! I recently realized that how to check global IP addresses is slightly different depending on the person. So I’d like to talk about...

Used Software virtualbox version 6.1 vagrant version 2.2.19 vagrant box: centos/7 apache version 2.4.6 What is Basic Authentication? In...

This blog post is about how to create a SWAP file in an AWS Instance. If you are not familiar with SWAP, our blog post about SWAP might...

Do you know what an SSL certificate is? It is a digital certificate for 'encryption of communication data' and mandatory by default to...