Solved - the dtn blog

Using GitHub as OpenID IdP with AWS Cognito

Today I was researching to make AWS Cognito works with GitHub as an identity provider (IdP). I thought it would be easy... until it wasn't. The problem is that Cognito

Productivity

Using Trello as a powerful To-do List with Power-ups and Butler Automation

As a great app for project management and tasks management, Trello can be used as a powerful daily personal To-do List with this easy-to-do setup.

Solved

Httpd/ apache2 issue "failed to make connection to backend" on CentOS

Ever came across this issue of "503 Service Unavailable" when you trying to setup a ProxyPass to your local (127.0.0.1) with Apache2/httpd? Service Unavailable The server

Solved

Change shell (chsh) for Amazon Linux 2

chsh does not come with the EC2 Amazon Linux 2 distro. If you want to install zsh or want to change default shell to your favorite, you might have to

Solved

Solved: GCC cannot find "Python.h"

Ever get these red error messages telling you that GCC compiler could not find its path to Python.h? MySQLdb/_mysql.c:38:10: fatal error: Python.h: No such file or directory #include "Python.h" ^~~~~~~~~~ compilation terminated. error: command 'x86_64-linux-gnu-gcc' failed with