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...
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Blogs
- 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...
- 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...
- Jul 18
What is a Public Function? (Access Modifier)
Introduction First of all, the “public” of the public function is called an access modifier, access modifiers allow properties (variables...
- 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 4
“ll” is not a command
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...
- 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 20
What is PHP Constructor?
What are constructors? A constructor is a method that is always executed when a class is instantiated (made into an object). An usual...
- 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...
- Feb 8
Let’s Get to Know About AWS Ground Station
Have you guys heard about “AWS Ground Station''? It is explained like this on their official website. AWS Ground Station is a fully...
- Jan 24
Managed Secure and Fast WordPress "WebSpeed”
The best WordPress platform that provides both enhanced security and high-speed WebSpeed is a cloud-server specialized for WordPress,...
- Jan 18
How to Create a VPC Environment Using CloudFormation (Template File)
In this article, I’m going to talk about how to write a template file that’s necessary to execute CloudFormation. What is CloudFormation？...
- Dec 26, 2022
How to Check Disk Space
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...
- Aug 31, 2022
Understanding the Apache Access Log Format
This article provides a brief introduction to the apache access log format. Server Settings OS version [root@Webserver local]# cat...
- Aug 30, 2022
How to Fix 404 Error When You Try to Install a Package on EC2
This blog post describes how to deal with the following error when trying to install a package on an AWS EC2 instance (graviton). [Errno...
- Aug 12, 2022
Oops! Did you forget the root password for MySQL? Here is how to resolve this issue.
Where is a default password In order to find out where a default password is, you need to refer to a path /var/log, and open mysqld.log....
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