Have You Ever Heard of Christmas Scan?
Speaking of December, there's Christmas. It's been a long time since Santa stopped visiting me, but the glittering cityscapes this time...
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Blogs
- Nov 16
How to Easily Check Resources Across Different AWS Regions
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...
- Oct 27
Beware of the Latest Malware Attacks Using AI and YouTube! The Methods and How to Counteract Them!
Artificial Intelligence (AI) is now being utilized in various fields, and we often see its accomplishments on the news. While there are...
- Oct 20
How to create virtual environment using Python's “venv”
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...
- Sep 20
Getting Started with Ansible for Infrastructure as Code (Practice)
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...
- Sep 20
Getting Started with Ansible for Infrastructure as Code (Introduction & Installation Guide)
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...
- Sep 19
A Simple Explanation of Permissions in Linux
What is permission? Directories and files on Linux have defined permissions. Permissions are the rights to manipulate directories and...
- Sep 15
Effortlessly Monitor Resources Across Multiple AWS Regions
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...
- Aug 31
You Can Modify the Message When You do SSH Login
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...
![[Linux] What do “~”, “$” and “#” Mean at the End of the Command Line?](https://static.wixstatic.com/media/9cfabe_2288ed2c444f4bcbbb8504f60e2f33b8~mv2.png/v1/fill/w_454,h_341,fp_0.50_0.50,q_95,enc_auto/9cfabe_2288ed2c444f4bcbbb8504f60e2f33b8~mv2.png)
- Aug 25
[Linux] What do “~”, “$” and “#” Mean at the End of the Command Line?
Related terms and commands What do the symbols on the Linux command line mean？ I’m going to explain each of the symbols' meanings....
- Aug 17
Demystifying '...' in ES2015: Exploring the Newly Added Spread Syntax
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？...
- Aug 3
Developed a Turtle Race with Python Library
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...
- Jun 28
How to Deploy a Lambda Function to Delete EC2 Instance Periodically
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...
- Jun 15
I Created a CLI Tool to Edit AWS Security Groups in Golang
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....
![[The Object Storages] What’s the Difference Between Amazon S3 and Wasabi](https://static.wixstatic.com/media/9cfabe_8b60a8da6aea4b1cb58858183fea7da5~mv2.png/v1/fill/w_454,h_341,fp_0.50_0.50,q_95,enc_auto/9cfabe_8b60a8da6aea4b1cb58858183fea7da5~mv2.png)
- Jun 1
[The Object Storages] What’s the Difference Between Amazon S3 and Wasabi
In this article, I’m going to introduce you to the differences between Wasabi (Hot cloud storage) and Amazon S3 (AWS’s object storage)....
- May 21
Wireshark From Scratch
What is Wireshark？ It is one of the most famous necessary tools for network engineers. It supports Windows and macOS, and basically...
- May 9
How to Manage Terraform Version Using tfenv
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...
- Apr 27
Improving Ways to Use Linux Commands
I’m going to introduce Linux commands and options that are smartly used. For example, $ ps auxwwf | grep httpd | grep -v "grep” This one...
- Apr 12
How to rotate the MySQL slow.log file in log rotation
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...
- Mar 7
About mysqlpump and Its Advantages
You might already know about “mysqlpump”, but I used this tool as an experiment and I made some suggestions for people who haven’t used...
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