Blogs

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...

Hi! Usually, when you create security groups, you create inbound rules manually but you may also want to create a security group that has...

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...

1. Create an AMI from an Amazon EC2 Instance First of all, create an AMI from the instance you wish to copy. You can right-click on the...

We have partnered up with Keeper, a powerful password & Secrets Management service. To check all the details of the service. Please refer...

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...

This blog post describes how to deal with the following error when trying to install a package on an AWS EC2 instance (graviton). [Errno...