Connecting to mpd over the Internet (outside home network) - error

Question

I'm trying to connect to an mpd instance running on my home computer from my computer at work.  I have an OpenVPN server at home, and so I can securely connect to my home network from work.  I've set up a second instance of mpd and icecast at home, and I'm trying to connect to this at work.  I can connect to the extent of being able to pull my library, playlist info over, but I can't actually seem to play anything.
When I look at the mpd error messages, I find:
shout_output: Failed to open "exelion HD mpd stream" [shout]: problem opening connection to shout server localhost:8000: Login failed
output: Failed to open audio output
I'm trying to connect using Cantata (which I use at home and like). 
Things I've played with:
originally in my mpd config I had:
user "source"
I tried commenting that out and just letting mpd use whatever the default user is, but that didn't seem to help.
The other thing I wonder about but haven't tried is different settings for "admin-user" in the icecast config.
I currently have
<admin-user>my-home-usernamer</admin-user>
.  Should I change this to "admin"?  Does it matter? 
The passwords match between the mpd and icecast configs.

Answer 1

Foucault wrote:Just in case you are not aware of it, MPD has built-in HTTP streaming to mp3/ogg/whatever. Unless you need any of the more advanced Icecast features, just use the httpd audio_output and get done with it.
Thanks. I didn't know that. But that seems much easier.  I tried this, but I'm still having trouble.  From the mpd server I get the following report:
path: SetFSCharset: fs charset is: UTF-8
libsamplerate: libsamplerate converter 'Fastest Sinc Interpolator'
vorbis: Xiph.Org libVorbis 1.3.4
opus: libopus 1.1
sndfile: libsndfile-1.0.25
db: reading DB
curl: version 7.40.0
curl: with OpenSSL/1.0.2
avahi: Initializing interface
avahi: Client changed to state 2
avahi: Client is RUNNING
avahi: Registering service _mpd._tcp/Music Player
avahi: Service group changed to state 0
avahi: Service group is UNCOMMITED
avahi: Failed to add service _mpd._tcp: Local name collision
state_file: Loading state file /home/user/.mpd/icecast-state
server_socket: bind to '0.0.0.0:8000' failed: Address already in use (continuing anyway, because binding to '[::]:8000' succeeded)
playlist: play 0:"Bob Marley/Bob Marley & the Wailers (1972-1980) - The Unreleased Studio Sessions/Disc 01 - The 'Catch A Fire' Sessions/1-01 Concrete Jungle (Studio Demo).mp3"
replay_gain: replay gain mode has changed -1->1
replay_gain: scale=1.000000
replay_gain: replay gain mode has changed -1->1
replay_gain: scale=1.000000
config: option 'quality' on line 19 was not recognized
playlist: queue song 1:"Bob Marley/Bob Marley & the Wailers (1972-1980) - The Unreleased Studio Sessions/Disc 01 - The 'Catch A Fire' Sessions/1-02 Slave Driver (Studio Demo).mp3"
decoder: audio_format=48000:24:2, seekable=true
client: [0] opened from 192.168.1.5:53478
client: [1] opened from 192.168.1.5:53479
client: [1] process command "channels"
client: [1] command returned 0
client: [1] process command "idle"
client: [1] command returned 1
client: [0] process command "status"
client: [0] command returned 0
client: [0] process command "stats"
client: [0] command returned 0
client: [0] process command "urlhandlers"
client: [0] command returned 0
client: [0] process command "tagtypes"
client: [0] command returned 0
client: [0] process command "currentsong"
client: [0] command returned 0
client: [0] process command "replay_gain_mode off"
replay_gain: replay gain mode has changed 1->-1
replay_gain: replay gain mode has changed 1->-1
client: [0] command returned 0
client: [0] process command "listallinfo"
buffered_socket: error on client 0: Output buffer is full
client: [0] command returned 0
client: [0] closed
client: [2] opened from 192.168.1.5:53480
client: [2] process command "playlistinfo"
client: [2] command returned 0
client: [2] process command "status"
client: [2] command returned 0
client: [2] process command "status"
client: [2] command returned 0
client: [2] process command "listallinfo"
buffered_socket: error on client 2: Output buffer is full