The [LinuxServer.io](https://linuxserver.io) team brings you another container release featuring easy user mapping and community support. Find us for support at:
* [IRC](https://www.linuxserver.io/irc/) on freenode at `#linuxserver.io`
* [Podcast](https://www.linuxserver.io/podcast/) covers everything to do with getting the most from your Linux Server plus a focus on all things Docker and containerisation!
[headphones](https://hub.docker.com/r/linuxserver/headphones/) is an automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent and Blackhole.
`The parameters are split into two halves, separated by a colon, the left hand side representing the host and the right the container side. For example with a port -p external:internal - what this shows is the port mapping from internal to external of the container. So -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 http://192.168.x.x:8080 would show you what's running INSIDE the container on port 80.`
*`-p 8181` - the port\(s\)
*`-v /config` - Configuration file location
*`-v /music` - Location of music. \(i.e. /opt/downloads/music or /var/music\)
*`-v /downloads` - Location of downloads folder
*`-e PGID` for for GroupID - see below for explanation - _optional_
*`-e PUID` for for UserID - see below for explanation - _optional_
*`-e TZ` for setting timezone information, eg Europe/London
It is based on alpine linux with s6 overlay, for shell access whilst the container is running do `docker exec -it headphones /bin/bash`.
#### User / Group Identifiers
Sometimes when using data volumes \(`-v` flags\) permissions issues can arise between the host OS and the container. We avoid this issue by allowing you to specify the user `PUID` and group `PGID`. Ensure the data volume directory on the host is owned by the same user you specify and it will "just work" ™.
In this instance `PUID=1001` and `PGID=1001`. To find yours use `id user` as below: