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Blogs
Apr 26
An attempt to build VRRP using YAMAHA RTX830
Recently I had a chance to conduct VRRP verification with YAMAHA's RTX830, and I thought I would share it with the world as a memorandum....
Apr 12
Implementing Basic Authentication with Nginx
In the previous article, I talked about configuring basic authentication using Apache and mentioned my intention to explore it with Nginx...
Jan 25
How to Set Up Laravel Admin
In this article, I will talk about setting up Laravel Admin. What is Laravel Admin? Laravel Admin is a tool for administrators developed...
Jan 18
【Support End】What will happen if CentOS 7 is left as it is?
As of June 30, 2024, the community support for "CentOS 7" will end (EOL), posing a significant challenge for many users. Of course,...
Nov 30, 2023
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...
Oct 27, 2023
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...
May 21, 2023
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, 2023
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 12, 2023
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...
Dec 19, 2022
How to Add Multiple Rules to a Security Group with Terraform
Hi! Usually, when you create security groups, you create inbound rules manually but you may also want to create a security group that has...
Sep 24, 2022
Get an SSL Certificate with Let's Encrypt
Do you know what an SSL certificate is? It is a digital certificate for 'encryption of communication data' and mandatory by default to...
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....
Aug 12, 2022
Create a CSR file in just 3 steps
What is a CSR file? CSR stands for Certificate Signing Requesters and is a file containing personal or corporate information related to...
![[WAF] Introduction of Cloudflare WAF](https://static.wixstatic.com/media/5fdcdf_92765134fa9a45a682e37911f35d875c~mv2.png/v1/fill/w_541,h_409,fp_0.50_0.50,lg_1,q_95,enc_auto/5fdcdf_92765134fa9a45a682e37911f35d875c~mv2.png)
Jun 19, 2022
[WAF] Introduction of Cloudflare WAF
It's Jon from Beyond GTA Inc., and today we are looking at Cloudflare, a leading WAF provider. Credit goes to Ohara who originally wrote...
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