Tutorials Index Page 1


tmux cheatsheet

Terminal MUltipleXer (tmux) allows you to switch between several terminals in one. In this tmux cheat sheet, we show the most common actions and commands, like list session, new window, tmux detach.


How to execute sudo with no password

In this short tutorial, we are going to explain how to configure the /etc/sudoers file for no password sudo. TLDR; username ALL=(ALL) NOPASSWD:ALL . We will also explain how to use a group to allow execution of sudo with no password.Check our step by step guide and good practices.


Moviepy: example script with subtitles

In this short tutorial, we are to explain how to use moviepy to add subtitles to a video. We use CompositeVideoClip for adding the subtitles in the center position of the video. With this script you can add subtitles as a batch process to multiple videos.

How to avoid WiFi deauth attacks with Ubiquiti UAP AC WiFi Access Point

In this tutorial, we are going to explain how to enable WiFi protection to avoid getting attacked by authentication packets. The option in the unifi controller is called PMF and it enables the IEEE 802.11w-2009. You can enable this option on the WLAN Group options from the Wireless Networks view of Settings. Check this guide for step by step how to.


Everything about what you should or should commit

In this tutorial, we are going to answer the question *should I commit...*. For example, should you commit .gitignore file? mix-manifest.json or what about package-lock.json? Check here the common questions about which files you should or should not commit to your repo. We will cover the most common cases.


Everything about Docker daemon json

In this tutorial, we are going to explain how the docker deamon json file works and we will provide an example file for using with docker deamon. The file location is /etc/docker/daemon.json. Check our tutorial for more information.


python3 http server command line

In this short tutorial we explain how to start a simple http server from the command line, very useful to share files across the network. Just execute python -m http.server 8000


How to use postgresql jsonb type with django

Learn how to use PostgreSQL JSONB column by following this tutorial that explain how to use schemaless with django and postgresql


How to use nix with catalina

After Catalina upgrade /nix will not be writable. In this tutorial, we explain step by step how to use nix with catalina by creating a volume to mount /nix on it. Read the full tutorial to find step by step


How to disable sip mac os catalina

In this brief tutorial, we explain how to disable SIP. You will need to start on recovery mode and from the terminal execute: csrutil disable. Make sure you understand what it means to disable SIP, read here for more information.