Get real client IP for Apache server behind Nginx Proxy Server

Step to configuration:

Flectra v1 screenshots

Flectra is an ERP Open Source application fork from Odoo CE v11, Flectra team has just released v1 on 2017-12-25, here are some screenshots:

Switch Input method global in Ubuntu

When using Ubuntu, switching between input method so uncomfortable. I use English as default and Unikey (fcitx-unikey) for Vietnamese. You can switch between input method by the hotkey (as my setting is Ctrl + Space), the problem is this hotkey is not working if you are not in the input area.

How to stop using TLS-SNI-01 with Certbot / Ubuntu / Nginx

Source: https://community.letsencrypt.org/t/how-to-stop-using-tls-sni-01-with-certbot/83210

Workaround for bug "Extra frozen / stuck mouse cursor after auto screen lock / sleep" on Linux

Just update my Linux kernel from version 4.15.0 to 5.3.0 on Ubuntu 18.04 LTS and facing this problem. When unlock my desktop after screen turn-off, a "ghost" cursor showing up on my desktop and stuck there.

The Camratus Blog

Chào mừng bạn đến với trang cá nhân của tôi, sau nhiều lần trì hoãn vì lười :(, cuối cùng mình cũng dọn sơ bộ sang nhà mới từ tháng 11/2021!