Flashphoner DNS issues ?

[fleduc]

hello we've been using flasphoner on a ubuntu vm for months now with no issue , then it stopped working for no apparent reasons. I tried to roll back to a previous snapshot, uninstall , reinstall with no success . I cannot find what prevented the service from running . We use it for rstp to webrtc only.
I finally restarted from scratch with the last build on a clean ubuntu 20.0.4 . My issue now is that I manage to playback local rtsp streams from a local network machine but as soon as I try to play our rtsp streams from our public domain adresse it fails . I can play them in VLC remotely and locally but not in flashphoner.
You may know the issue but personally after 1 day searching I cannot find the solution .

Thanks a lot

 

[Max]

Good day.
WCS always uses system DNS settings. So please check if RTSP stream domain name is correctly resolved from VM on which WCS is installed. Also please check if RTSP port is available from this VM by address which domain name is resolved to. For example? if RTSP stream is available by URL rtsp://my.stream.domain:554/live.sdp:
1. Ping the domain from VM:

ping my.stream.domain

If ping returns error, check VM DNS setup
2. If ping works correctly, check if port 554 can be connected from VM using netcat as described here
If nothing helps, collect a report as described here and send using this form
Or provide SSH access to the VM and RTSP URL using this form

 

[Max]

We checked your server.
The main problem is that domain name is resolved to VM local address:

But there are no RTSP sources on this host:

So WCS throws exception

java.net.ConnectException: Connection refused

But, if you try to play RTSP stream by external IP to which the DNS name is resolved, it is connected and is played correctly:

09:02:07,252 INFO             RtspAgent - pool-42-thread-1 Public header: DESCRIBE, SETUP, PLAY, PAUSE, GET_PARAMETER, SET_PARAMETER, TEARDOWN, ANNOUNCE, OPTIONS
09:02:07,285 INFO          MediaHandler - pool-42-thread-1 publishStream arguments - Stream{mediaSessionId='179cf7b9-9d3c-4ebb-90ea-675c2614f5d5', remoteMediaElementId='null', name='rtsp://**.**.***.**:555/test', published=true, hasVideo=true, hasAudio=true, status=NEW, sdp='v=0
o=VNSDK 0 0 IN IP4 192.168.1.198
s=aja.sdp
c=IN IP4 192.168.1.198
t=0 0
r=0 0
m=video 0 RTP/AVP 96
a=rtpmap:96 H264/90000
a=control:trackID=1
a=fmtp:96 profile-level-id=4d4028; sprop-parameter-sets=J01AKIuVAPAET8v/gAgAB4gAAB9AAAYagwAAAwDPhQAAGfCje91p,KP4CuIA=;
m=audio 0 RTP/AVP 97
a=rtpmap:97 mpeg4-generic/48000
a=control:trackID=2
a=fmtp:97 streamType=5; profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1190

Also, we cannot play RTSP stream on your server via WebRTC because UDP media ports are not available from external networks

media_port_from        =31001
media_port_to          =32000

But we can play it using MSE through websocket which is available.

So we recommend to set up DNS resolver on WCS VM to resolve domain name to local RTSP source address (192.168.1.198 in log example above), or to resolve domain name to external address.

 

[fleduc]

Thanks Mark, that's kind of what I thought for the DNS issue. Any idea of what/how I did to make solve this domain as its local address instead of public domain ? it worked this way on the previous VM . For the NAT issues I'll check them again .

 

[Max]

Any idea of what/how I did to make solve this domain as its local address instead of public domain ? it worked this way on the previous VM .

Perhaps you need to set up local DNS resolver.

 

[fleduc]

i rolled back to the initial config which has been running smoothly for months. Could you please throw an eye on it and check where the issue could be ? Credentials are the same as before except it's the initially running VM not the one you checked a few hours back. Thanks a lot for your help .

 

[Max]

We checked the instance. The command

systemd-resolve --status

returns current DNS server address as 192.168.1.1:

Perhaps this is VM host. In this case domain name is resolved to external address, and WCS can correctly connect to RTSP sources by domain name.
Also, this parameter in WCS configuration file flashphoner.properties is good for the case:

Note that license key on the instance is expired, so you should update the license key to play streams.
You can update this WCS installation to the latest build, it should work too.
Please also see this article about DNS setup in Ubuntu.

 

[fleduc]

So this one stopped working because of ? License issue ?

 

[Max]

So this one stopped working because of ? License issue ?

If nothing was changed in VM setup, this may be due to license expiration. May be you've not paid in time. Please see how billing works here.

 

[fleduc]

Hello,

Can you help me buy a new license with auto renewal.
I don't understand why the current license stopped...

Merci

 

[Max]

Can you help me buy a new license with auto renewal.
I don't understand why the current license stopped...

Please contact sales@flashphoner.com and provide them a license number, they will check and help.

 

[fleduc]

hello could you please throw an eye at the VM restored to when it worked ? you have the logins in previous exchanges. I cannot find why it does not work . License has been renewed . Thanks

 

[Max]

Unfortunately, seems like password is changed:

Please provide an actual SSH credentials using this form.

 

[fleduc]

It was a nat issue on listening port 31001-32000. Seems ok now ! . Thanks !

 

[Max]

Yes, we've checked, streams are playing now using WebRTC:

 

[fleduc]

yes . two different issues. license then nat. Thx for your help !