Dumb pipe

This is an example to use iroh-net to create a dumb pipe to connect two machines with a QUIC connection.

It is also useful as a standalone tool for quick copy jobs.

Installation

cargo install dumbpipe

Examples

Use dumbpipe to stream video using ffmpeg / ffplay:

This is using standard input and output.

Sender side

On Mac OS:

ffmpeg -f avfoundation -r 30 -i "0" -pix_fmt yuv420p -f mpegts - | dumbpipe listen

On Linux:

ffmpeg -f v4l2 -i /dev/video0 -r 30 -preset ultrafast -vcodec libx264 -tune zerolatency -f mpegts - | dumbpipe listen

outputs ticket

Receiver side

dumbpipe connect nodeealvvv4nwa522qhznqrblv6jxcrgnvpapvakxw5i6mwltmm6ps2r4aicamaakdu5wtjasadei2qdfuqjadakqk3t2ieq | ffplay -f mpegts -fflags nobuffer -framedrop -

• Adjust the ffmpeg options according to your local platform and video capture devices.
• Use ticket from sender side

Forward development web server

You have a development webserver running on port 3000, and want to share it with a colleague in another office or on the other side of the world.

The web server

npm run dev
>    - Local:        http://localhost:3000

The dumbpipe listener

Listens on a magic endpoint and forwards all incoming requests to the dev web server that is listening on localhost on port 3000. Any number of connections can flow through a single dumb pipe, but they will be separate local tcp connections.

dumbpipe listen-tcp --host localhost:3000

This command will output a ticket that can be used to connect.

The dumbpipe connector

Listens on a tcp interface and port on the local machine. In this case on port 3001. Forwards all incoming connections to the magic endpoint given in the ticket.

connect-tcp --addr 0.0.0.0:3001 <ticket>

Testing it

You can now browse the website on port 3001.

Need a dumb pipe as well?

Dumb pipe is a very simple command line tool that uses iroh .