mdns-repeater Docker image

About

mdns-repeater in the Docker container.

mdns-repeater

mdns-repeater is a Multicast DNS (mDNS) repeater for Linux.

This program is an application level gateway which re-broadcasts mDNS packets received on one interface to other interfaces. Since mDNS is "administratively scoped" such a gateway is required when mDNS resolutions should work across subnet borders.

Upstream Links

• Docker Registry @monstrenyatko/mdns-repeater
• GitHub @monstrenyatko/docker-mdns-repeater

Usage

mdns-repeater only requires the interface names and it will do the rest.

Example:

mdns-repeater eth0 vlan1

You can also specify the:

• -f flag to keep mdns-repeater running in foreground.
• -d flag additionally to -f to print out parsed mDNS packets as they are received

Docker image Usage

Container is already configured for automatic restart (See docker-compose.yml).

• Configure environment:

  • MDNS_REPEATER_INTERFACES: names of the interfaces:

      export MDNS_REPEATER_INTERFACES="eth0 docker0"

  • DOCKER_REGISTRY: [OPTIONAL] registry prefix to pull image from a custom Docker registry:

      export DOCKER_REGISTRY="my_registry_hostname:5000/"

• Pull prebuilt Docker image:

    docker-compose pull

• Start prebuilt image:

    docker-compose up -d

• Stop/Restart:

    docker-compose stop
    docker-compose start

Acknowledgments

• Darell Tan who created the initial version of this program and who described it in this blog post.
• Kenny Levinsen and contributors for maintaining the code and adding features in this repository.
• Matthias Dettling for -d flag idea in this repository.