With self-signed certificates installed in the right places
for tomcat & the turn server ( on my CentOS 7 server )

------> audio & video works remotely NOW 

Thanks to all those, who gave advice !

Otfried

----- Original Message -----
From: "Maxim Solodovnik" <[email protected]>
To: "user" <[email protected]>
Sent: Monday, 6 April, 2020 15:14:43
Subject: Re: no audio, no video for remote user - works only locally

Yep

HTTPS is a MUST

On Mon, 6 Apr 2020 at 19:46, Geffert, Otfried <[email protected]>
wrote:

> I guesss,
> my last chance is to setup some fake certificates and use https.
>
> Otfried
>
> ----- Original Message -----
> From: "Otfried Geffert" <[email protected]>
> To: "user" <[email protected]>
> Sent: Monday, 6 April, 2020 14:43:48
> Subject: Re: no audio, no video for remote user - works only locally
>
> I was able to configure OM5 with just http, means:
> edited ./open503/conf/server.xml and set SSLEnabled=false
>
> Restarted tomcat, it accepts HTTP now,
> I verified with telnet !
>
> BUT now OM does not allow sharing of webcam & microphone :-(
>
> Otfried
>
> ----- Original Message -----
> From: "Otfried Geffert" <[email protected]>
> To: "user" <[email protected]>
> Sent: Monday, 6 April, 2020 12:55:26
> Subject: Re: no audio, no video for remote user - works only locally
>
> ***** I. *****
>
> All firewalls are fully open: no change.
>
>
> ***** II. *****
>
> But I see that Docker sets up a PRIVATE ip address 172.17.0.2 for
> my server which has a real internet ip address 131.169.250.127:
>
> ------> This explains why audio & video never worked remotely
>
> So NAT (network address translation) is a NECESSITY, because Docker on
> Cent OS 7
> creates a PRIVATE ip address.
>
> I tried Alvaros other tutorial "Installation SSL certificates and Coturn
> for OpenMeetings 5.0.0-M3.pdf"
> starting at 5) Coturn installation.
>
> This worked for the turn server, it now transales between
> 172.17.0.2 and 131.169.250.127 (cfel-t-cn27.desy.de)
>
>
> ***** III. *****
>
> But now SSl does not work, because letsencrypt stuff
> only works when my server can be reached by them, but my server is behind
> a protecting ring at desy.de, so cfel-t-cn27.desy.de cannot be contacted
> by machines that are not part of the DESY network.
>
> So I want to try now with HTTP only, since all users
> anyhow are in a private VPN.
>
> Best,
> Otfried
>
> ----- Original Message -----
> From: "YUP" <[email protected]>
> To: "user" <[email protected]>
> Sent: Friday, 3 April, 2020 21:33:46
> Subject: Re: no audio, no video for remote user - works only locally
>
> Not enough, you also need to open UDP ports. And check that firewall
> doesn't reject udp requests.
>
> On Fri, Apr 3, 2020 at 6:17 PM Geffert, Otfried <[email protected]>
> wrote:
> >
> >
> > Yes.
> > I opened two ports on the server: 5443 8888
> >
> > Otfried
> >
> > ----- Original Message -----
> > From: "Maxim Solodovnik" <[email protected]>
> > To: "user" <[email protected]>
> > Sent: Friday, 3 April, 2020 18:14:19
> > Subject: Re: no audio, no video for remote user - works only locally
> >
> > any firewalls involved?
> >
> > On Fri, 3 Apr 2020 at 23:13, Alvaro <[email protected]> wrote:
> >
> > > ...i mean:  turnserver.conf
> > >
> > >
> > > ..........
> > >
> > >
> > > El vie, 03-04-2020 a las 18:09 +0200, Alvaro escribió:
> > > > ...in Centos 7 turn.config file is in:
> > > >
> > > > /etc/coturn
> > > >
> > > >
> > > > .....................
> > > >
> > > >
> > > > El vie, 03-04-2020 a las 18:01 +0200, Geffert, Otfried escribió:
> > > > > Hi Maxim,
> > > > >
> > > > > thanks for the quick reply !
> > > > >
> > > > > He used several browsers, started with Safari, then Firefox, then
> > > > > Chrome.
> > > > > Regarding audio & video: same behaviour.
> > > > >
> > > > > Best regartds,
> > > > > Otfried
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Maxim Solodovnik" <[email protected]>
> > > > > To: "user" <[email protected]>
> > > > > Sent: Friday, 3 April, 2020 17:53:36
> > > > > Subject: Re: no audio, no video for remote user - works only
> > > > > locally
> > > > >
> > > > > Hello,
> > > > >
> > > > > what browser your colleague with Mac is using? Safari? Is it better
> > > > > with
> > > > > some other browser?
> > > > > Do you have TURN server configured? (or you both under the same
> > > > > NAt?)
> > > > >
> > > > >
> > > > > On Fri, 3 Apr 2020 at 22:41, Geffert, Otfried <otfried.geffert@desy
> > > > > .d
> > > > > e>
> > > > > wrote:
> > > > >
> > > > > > Dear all,
> > > > > >
> > > > > > I installed OpenMeetings 5.0.0-M3 on a fresh CentOS 7
> > > > > > following Alvaro Bustos detailed installation pdf.
> > > > > >
> > > > > > Installation as such worked fine, :-)
> > > > > > Audio & video locally works fine.
> > > > > > I was suprised of the rich functionality.
> > > > > >
> > > > > > But testing it with a colleague ( who has a Mac )
> > > > > > never gave us the audio and video of the other person -
> > > > > > even after one hour of poking around.
> > > > > >
> > > > > > Locally it worked for him, he could see his picture and the adio
> > > > > > level
> > > > > > was going up/down for him.
> > > > > > The same happened on my side :-(
> > > > > >
> > > > > > I have no idea of what is wrong.
> > > > > > Can someone give a hint ?
> > > > > >
> > > > > > Best regards,
> > > > > > Otfried
> > > > > >
> > > > > > --
> > > > > > Otfried Geffert
> > > > > > Hard~ & Software Engineer @ DESYs CFEL theory group
> > > > > > __________________________https://desy-theory.cfel.de/
> > > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Best regards,
> > > > > Maxim
> > >
> >
> >
> > --
> > Best regards,
> > Maxim
> > --
> > Otfried Geffert
> > Hard~ & Software Engineer @ DESYs CFEL theory group, Tel. +49 40
> 8998-6312
> > __________________________https://desy-theory.cfel.de/
> --
> Otfried Geffert
> Hard~ & Software Engineer @ DESYs CFEL theory group, Tel. +49 40 8998-6312
> __________________________https://desy-theory.cfel.de/
> --
> Otfried Geffert
> Hard~ & Software Engineer @ DESYs CFEL theory group, Tel. +49 40 8998-6312
> __________________________https://desy-theory.cfel.de/
> --
> Otfried Geffert
> Hard~ & Software Engineer @ DESYs CFEL theory group, Tel. +49 40 8998-6312
> __________________________https://desy-theory.cfel.de/
>


-- 
Best regards,
Maxim
-- 
Otfried Geffert
Hard~ & Software Engineer @ DESYs CFEL theory group, Tel. +49 40 8998-6312
__________________________https://desy-theory.cfel.de/

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