Where is the coturn config located?

[atrilahiji]

I am trying to resolve my issues with the TURN server not working (across multiple apps) for me. It seems I just get errors saying local ports are blocked. I have port forwarded.

Where would I find the coturn config for Cloudron? the one I found in /etc/ seems to have everything commented out.

[robi]

@atrilahiji that just means it's using defaults, no?

otherwise it's in a container?

When I had TURN issues it was not with Cloudron, but with router or App. And since Apps are managed config, they should be good.

[atrilahiji]

@robi Huh... my issue seems to be happening regardless of what I do in terms of my port forwarding and the app I use

[robi]

@atrilahiji we can't guess as to what app, network config and where clients are coming from.. or logs with errors.

[atrilahiji]

@robi This is the error I'm running into:

For reference, this is the internal IP of my cloudron server. I tried calling my brother in another city using my phone (the iOS nextcloud talk app) on LTE

[robi]

@atrilahiji that looks like an error in NC Talk.

I have a Cloudron with a similar setup and once the v6 upgrade happened our NC:T went down. We just needed the new ports added to the router for STUN & TURN.

[atrilahiji]

@robi Those logs are for the TURN service in the services page on my cloudron btw. So I get the exact same thing when I try a video chat with Kopano Meet. These are my forwaded ports for the same IP that is apparently being blocked:

3478,3479,5349,5350,49152:65535/tcp
3478,3479,5349,5350,49152:65535/udp

[robi]

@atrilahiji I see..
can you find the process and trace it to a container?

I have to run atm, but would dig into the CL TURN docs and see how or why they restrict the private networks if that's where it's blocked.

[atrilahiji]

The documentation seems quite lacking in this regard. Perhaps @girish or @nebulon have more info on this? Meanwhile I'll see if I can figure something out combing through the cloudron/box repo

[nebulon]

@atrilahiji So the turn addon is configured as per https://github.com/coturn/coturn/blob/master/examples/etc/turnserver.conf to have the following ports:

listening-port=3478
tls-listening-port=5349
min-port=50000
max-port=51000

We have also included a section for preventing some attack, which I think is what you may hit?

# https://www.rtcsec.com/2020/04/01-slack-webrtc-turn-compromise/
no-multicast-peers
denied-peer-ip=0.0.0.0-0.255.255.255
denied-peer-ip=10.0.0.0-10.255.255.255
denied-peer-ip=100.64.0.0-100.127.255.255
denied-peer-ip=127.0.0.0-127.255.255.255
denied-peer-ip=169.254.0.0-169.254.255.255
denied-peer-ip=127.0.0.0-127.255.255.255
denied-peer-ip=172.16.0.0-172.31.255.255
denied-peer-ip=192.0.0.0-192.0.0.255
denied-peer-ip=192.0.2.0-192.0.2.255
denied-peer-ip=192.88.99.0-192.88.99.255
denied-peer-ip=192.168.0.0-192.168.255.255
denied-peer-ip=198.18.0.0-198.19.255.255
denied-peer-ip=198.51.100.0-198.51.100.255
denied-peer-ip=203.0.113.0-203.0.113.255
denied-peer-ip=240.0.0.0-255.255.255.255

Those IPs are anyways no public IPs and thus would not help you to achieve connectivity through it as far as I understand.

[atrilahiji]

@nebulon I didn’t see those lines in /etc/turn server.conf. Is this configured per app or is there a config file somewhere else I’m missing?

[girish]

@atrilahiji The config is in /run/turnserver/turnserver.conf inside the container

[atrilahiji]

@girish perfect, thanks! I’ll play around in there and see if I can get this sorted.

[atrilahiji]

@girish Digging this back up again. So I found the config file, however removing the disallowed peers doesnt work as it is all reset when the turn server is restarted.

@robi For your setup is your computer and server on the same network? I'm seeing 401s every time I try to connect with others.

[robi]

@atrilahiji computer = server, so yes. clients no.

[atrilahiji]

@robi Ah what I meant is if you have run a meeting off of a computer that is on the same network as the server which is clearly also a computer.

[robi]

@atrilahiji Yes, same box. it's actually a nested virtualized server and the host is a client.
ISP Router ports forward directly to the server for this.

[atrilahiji]

Huh so I am back on the debugging train here. I do seem to fail the Reflexive connectivity test here O_O

Also, I should point out that I use Adguard Home on my router, which is also what connects to my cloudron. Would that cause any problems?

But its weird because it seems to work between my phone on data and my desktop (on the same network as my cloudron) but not between my someone in toronto and my desktop.

I remember there was a change related to this slated for a release @girish. Is this true? I'm really not sure what else I can do here O_O

EDIT: Seems like my investigations are going nowhere

I assumed it might have to do with this commit but if it works for Robi in the same scenario I've got nothing else I can think of trying: https://git.cloudron.io/cloudron/box/-/commit/6adf5772d8f871eae98ad5f5ffdbed7098bac214

[robi]

@atrilahiji No Adguard in our picture so try disabling it temporarily.

[atrilahiji]

Ugh no luck...