Networking Tools for Robotics
Tmux and Tmuxp
Tmux is a commonly used terminal multiplexer. This program allows you to split one terminal into many.
When you run
tmux, you create a tmux session. This session can survive interrupted network connections,
so if you lose your internet, you can pick up right where you left off by reattaching to your still-running session.
In each session, you can have multiple windows (selectable like tabs in a web browser), and in each window, you can have multiple panes. This lets you have several terminals side-by-side in just one! Isn't that handy?
Tmuxp is a session manager for tmux. It's built on top of a Python library for tmux, called libtmux. Tmuxp makes it easy to launch preconfigured tmux sessions with the panes and windows you want already loaded. You can even set it to run commands! With built-in delays too!
SSH, or Secure Shell, allows you to connect to computers remotely through your terminal. When you combine tmux with SSH, you end up with a robust way for controlling a remote computer.
ZeroTier is a service that allows for creating virtual LAN networks between computers through a technique called UDP holepunching. This allows for computers on different networks that are connected to the internet to behave as if they are on the same networking, saving a lot of headache on port-forwarding and other issues when remoting into devices.
Husarnet is similar to ZeroTier, but developed specifically with ROS in mind. This is yet to be tested, but it should have the ability to connect devices on the same network even without an internet connection.