Re: Clustering across a WAN

[Jeffry Johnson]

We actually are only beginning a POC with AWS. the clustering I'm taking
about right now are servers we are deploying in various regions our company
operates in running in RHEL 7. thank you for the link, I will do the
reading. And yes, Apache zookeeper, and that's what I thought as I read the
site in that it was geared more toward file syncing.

On Wed, Sep 8, 2021, 16:16 seba.wag...@gmail.com 
wrote:

> Hi Jeffry,
>
> there is a discussion here that I think is worth reading and digesting
> before jumping into setting up a potential costly infrastructure:
> https://markmail.org/message/w55hh7ri2tmtlnvt
>
> Especially if you are thinking of adding 3rd party software to support the
> clustering.
>
> Zookeeper I assume you referring to Apache Zookeeper which is mostly a
> file sync helper. While the problem that Hazelcast in OpenMeetings solves
> is around sharing in-memory Java objects across multiple Java Application
> Servers.
>
> So the use-cases are quite different. Zookeeper _could_ replace the
> sharing of mounted drives (that are also part of the OpenMeetings
> Clustering). This might be useful in case you can't physically mount drives
> across different regions because of network restrictions. But it is
> probably not required (or can be achieved by other more simple means)
> Eg: Your terminology around regions and subnets suggests you are using
> AWS. Which probably has easier ways to share file systems or block storage
> across machines (and regions).
>
> As for general clustering and scaling up with multi-region (as well as
> going up to several 1000++ users) I would suggest reading the above link,
> especially around different modes of Clustering OpenMeetings. Eg
> essentially OpenMeetings consists of 2 different application servers:
> Tomcat/Java and KMS. They scale very differently. While in a scenario with
> 2 servers this is not much relevant, if you go to 4,5,6 instances it will
> become quite relevant quickly.
>
> As well as the ability to actually verify and test the configuration (and
> any potential scaling events) (see performance testing results linked in
> above email thread).
>
> So I would start thinking about those topics.
>
> Thanks
> Seb
>
> Sebastian Wagner
> Director Arrakeen Solutions, OM-Hosting.com
> http://arrakeen-solutions.co.nz/
> https://om-hosting.com - Cloud & Server Hosting for HTML5
> Video-Conferencing OpenMeetings
>
> 
> 
>
>
> On Thu, 9 Sept 2021 at 08:54, Jeffry Johnson 
> wrote:
>
>> I am needing to cluster OM across a WAN (4 different regions and subnets
>> to start with) and Hazelcast doesn't offer this feature in the lower
>> version packaged with OM that I can see. Would Zookeeper work to cluster
>> media and app servers for OM?
>>
>

Re: Audio on iOS

[Jason]

Maxim,
Have you figured out the iOS issues? If not. I have been playing with a 
different solution for now and it works fine on all iOS devices. It is using 
JavaScript I am running it on Node.JS. The project is called MiroTalk on 
GitHub. It is a very young project WebRTC. It has taken me two weeks to help 
fix bugs, but works.

Maybe you can take a look at the code for setting up the video on iOS and 
modify open meeting to work. This is the only issue holding me back from using 
Open Meeting again. Needs to work on all iOS devices.

Jason

> On Sunday, May 02, 2021 at 10:35 AM, Ali Alhaidary 
> mailto:ali.alhaid...@the5stars.org)> wrote:
>
> Well done, works for me as well, lets see teachers and students ...
>
>
> Ali
>
>
> On 5/2/21 11:12 AM, Maxim Solodovnik wrote:
> > https://issues.apache.org/jira/browse/OPENMEETINGS-2616
> >
> > now everything works for me as expected :)
> > On Sun, 2 May 2021 at 06:52, Ali Alhaidary  > (mailto:ali.alhaid...@the5stars.org)> wrote:
> > >
> > > Same on demo-next, only one TA (tutor) has this iPad, but one big 
> > > obstetrical is removed now :-) we are not into using cams anyway ...
> > >
> > >
> > >
> > > Ali
> > >
> > >
> > > On 5/2/21 2:26 AM, Maxim Solodovnik wrote:
> > > > Demo-next works, but seems to have some issues
> > > > Will try to debug
> > > >
> > > > from mobile (sorry for typos ;)
> > > >
> > > > On Sun, May 2, 2021, 04:43 Ali Alhaidary  > > > (mailto:ali.alhaid...@the5stars.org)> wrote:
> > > > > It works on iOS phones till now, however, on iPad Air (second
> > > > > generation) using the camera freezes the screen, and, can not export 
> > > > > in
> > > > > PNG or PDF...
> > > > >
> > > > > Ali
> > > > >
> > > > > On 5/1/21 7:29 PM, Alvaro wrote:
> > > > > > ...yes, it works the sound and video.
> > > > > >
> > > > > > Big Sur 11.3 - Safari 14.1
> > > > > >
> > > > > >
> > > > > > ...
> > > > > >
> > > > > > On Sat, 1 May 2021 18:45:15 +0300
> > > > > > Ali Alhaidary  > > > > > (mailto:ali.alhaid...@the5stars.org)> wrote:
> > > > > >
> > > > > >> It works :-)))
> > > > > >>
> > > > > >> We will keep testing on different models
> > > > > >>
> > > > > >> Ali
> > > > > >>
> > > > > >> On 5/1/21 5:21 PM, Maxim Solodovnik wrote:
> > > > > >>> It seems Safari 14.1 is out :)
> > > > > >>> Can someone with Apple device confirm it? :)
> > > > > >>> And check audio in OM ? :))
> > > > > >>>
> > > > > >>> from mobile (sorry for typos ;)
> > > > > >>>
> > > > > >>> On Tue, Apr 6, 2021, 11:46 Ali Alhaidary 
> > > > > >>> mailto:ali.alhaid...@the5stars.org)
> > > > > >>> > wrote:
> > > > > >>>
> > > > > >>> May be one should take a look at the html5 code of some other
> > > > > >>> applications (such as BBB) and see how they sorted it out ?
> > > > > >>>
> > > > > >>> Ali
> > > > > >>>
> > > > > >>> On 4/6/21 7:30 AM, Jason wrote:
> > > > >  Anything that try’s to query the microphone gets no device. So
> > > > >  maybe it just need to select the default system wide and request
> > > > >  access. It seems once it has access it can capture the mic on
> > > > >  the IOS.
> > > > > 
> > > > >  Jason
> > > > > 
> > > > > 
> > > > > 
> > > > >  On Monday, Apr 05, 2021 at 11:27 PM, Jason  > > > >  (mailto:ja...@romos.net)
> > > > >  > wrote:
> > > > >  This works for sending audio in safari iOS.
> > > > > 
> > > > >  https://webrtc.github.io/samples/src/content/peerconnection/webaudio-input/
> > > > >  
> > > > > 
> > > > >  Not sure what option is being used for OM.
> > > > >  Jason
> > > > > 
> > > > > 
> > > > > 
> > > > >  On Monday, Apr 05, 2021 at 10:59 PM, Ali Alhaidary
> > > > >  mailto:ali.alhaid...@the5stars.org)
> > > > >  > wrote:
> > > > >  On 4/5/21 11:44 PM, seba.wag...@gmail.com 
> > > > >  (mailto:seba.wag...@gmail.com)
> > > > >   wrote:
> > > > > > I think what you are referring to is the long term issue
> > > > > > that microphone capture on iOS/Safari doesn't work.
> > > > > >
> > > > > > Playing back video/audio from other users is fine on
> > > > > > iOS/Safari.
> > > > > > Publishing Camera is also fine on iOS/Safari.
> > > > >  All browsers on iOS (safari, ff and chrome)
> > > > > > Just publishing your own audio using the built in
> > > > > > microphone on iOS/Safari doesn't work with webRTC/HTML5.
> > > > > >
> > > > > > The answer from Apple/webkit was to: If we can raise an
> > > > > > issue report at bugs.webkit.org (http://bugs.webkit.org)
> > > > > > . Then Apple support /
> > > > > > developers are willing to look into it.
> > > > > > However the bug report has to be based on a
> > > > > > neutral/reference example. For 

Re: Clustering across a WAN

[seba.wag...@gmail.com]

Hi Jeffry,

there is a discussion here that I think is worth reading and digesting
before jumping into setting up a potential costly infrastructure:
https://markmail.org/message/w55hh7ri2tmtlnvt

Especially if you are thinking of adding 3rd party software to support the
clustering.

Zookeeper I assume you referring to Apache Zookeeper which is mostly a file
sync helper. While the problem that Hazelcast in OpenMeetings solves is
around sharing in-memory Java objects across multiple Java Application
Servers.

So the use-cases are quite different. Zookeeper _could_ replace the sharing
of mounted drives (that are also part of the OpenMeetings Clustering). This
might be useful in case you can't physically mount drives across different
regions because of network restrictions. But it is probably not required
(or can be achieved by other more simple means)
Eg: Your terminology around regions and subnets suggests you are using AWS.
Which probably has easier ways to share file systems or block storage
across machines (and regions).

As for general clustering and scaling up with multi-region (as well as
going up to several 1000++ users) I would suggest reading the above link,
especially around different modes of Clustering OpenMeetings. Eg
essentially OpenMeetings consists of 2 different application servers:
Tomcat/Java and KMS. They scale very differently. While in a scenario with
2 servers this is not much relevant, if you go to 4,5,6 instances it will
become quite relevant quickly.

As well as the ability to actually verify and test the configuration (and
any potential scaling events) (see performance testing results linked in
above email thread).

So I would start thinking about those topics.

Thanks
Seb

Sebastian Wagner
Director Arrakeen Solutions, OM-Hosting.com
http://arrakeen-solutions.co.nz/
https://om-hosting.com - Cloud & Server Hosting for HTML5
Video-Conferencing OpenMeetings




On Thu, 9 Sept 2021 at 08:54, Jeffry Johnson 
wrote:

> I am needing to cluster OM across a WAN (4 different regions and subnets
> to start with) and Hazelcast doesn't offer this feature in the lower
> version packaged with OM that I can see. Would Zookeeper work to cluster
> media and app servers for OM?
>

Re: OpenMeetings in clusterings mode

[seba.wag...@gmail.com]

There was another recent (more technical) discussion about different
clustering modes/questions on this mailing list that might be worth reading:
https://markmail.org/message/w55hh7ri2tmtlnvt

Especially also around the performance testing aspect
and measuring capacity limits. As well as how to optimise the
hardware/network usage when demand scales up.

Thanks
Sebastian

Sebastian Wagner
Director Arrakeen Solutions, OM-Hosting.com
http://arrakeen-solutions.co.nz/
https://om-hosting.com - Cloud & Server Hosting for HTML5
Video-Conferencing OpenMeetings




On Thu, 9 Sept 2021 at 03:27, Maxim Solodovnik  wrote:

> The current balancer is hardcoded and have no options for tuning (maybe
> yet, ideas are welcome)
>
> The clustering is room-based
> So if you have 2 nodes
>
> First user accessing the roomA will use node1,
> all other users entering roomA will be redirected to node1
>
> If userB will enter roomB he/she will be redirected to node2
> As well as all other users entering roomB
>
> if userC will enter roomC - the clustering logic will check
> 1) if free nodes exists
> 2) IF NOT: roomA and roomB capacity will be checked
> Node with smaller total capacity will be used
>
> i.e. if roomA is personal room for max. 15 users and roomB is public room
> with max. 150 users
> roomC will be opened at node1
>
> I hope my description makes sense :)
>
> On Fri, 3 Sept 2021 at 09:46, Aom Jeff Root 
> wrote:
>
>> Hello,
>> I have some questions about cluster of om
>>
>> In cluster mode, how is the redirection of users to the room appropriate
>> for the server?
>> What are the criteria?
>> Are there any configurations to be made at the cluster level to know when
>> it should redirect users ?
>> We have which advantages with the cluster with 2 or more om ?
>>
>> thanks in advance.
>>
>> Kind regards,
>> Jeffrey
>>
>> Le jeu. 2 sept. 2021 à 06:29, Aom Jeff Root  a
>> écrit :
>>
>>> In the scenario where the second instance is not turned off manually.
>>> I.e. they are in a meeting and suddenly he had a crash users connected to
>>> this instance will not have access to the application (i.e. the server will
>>> be offline)
>>>
>>> Le jeu. 2 sept. 2021 à 03:17, Maxim Solodovnik  a
>>> écrit :
>>>
 Hello Jeffrey,

 since taking cluster node offline is manual process I would expect it
 will happen while there will be no load
 I can imagine no mechanism to more users to other node

 might require some "Cluster admin" or something like this 

 On Thu, 2 Sept 2021 at 01:07, Aom Jeff Root 
 wrote:

> Hi dear all,
> Need help - clarifications on setting up cluster - OM
>
> When two OM instances are in cluster mode, is it normal that if one is
> turned off, the meeting (access) is no longer available for the users
> connected to this instance?
> Isn't there a way to switch them automatically to the instance that is
> active?
>
> Best regards,
> Jeffrey
>
> Le mar. 31 août 2021 à 06:12, Aom Jeff Root 
> a écrit :
>
>> Hi dear all,
>>
>> When two OM instances are in cluster mode, is it normal that if one
>> is turned off, the meeting (access) is no longer available for the users
>> connected to this instance?
>> Isn't there a way to switch them to the instance that is
>> automatically active?
>>
>> Best regards,
>> Jeffrey
>>
>

 --
 Best regards,
 Maxim

>>>
>
> --
> Best regards,
> Maxim
>

Clustering across a WAN

[Jeffry Johnson]

I am needing to cluster OM across a WAN (4 different regions and subnets to
start with) and Hazelcast doesn't offer this feature in the lower version
packaged with OM that I can see. Would Zookeeper work to cluster media and
app servers for OM?

Re: Setup instructions for Cent OS 7 and Cent OS 8

[Alvaro]

Ok, after updte tthe script of Ghostscript
from 25 to 52, now is also updated the
script of ffmpeg from 4.1 to 4.3.

All this only for the tuto:

Installation OpenMeetings 6.1.0 on CentOS 7

Respect the tuto about Lets Encrypt, Docker,
Kurento and Coturn, is nothing to update.

Thanks again.

Alvaro


 


On Wed, 8 Sep 2021 18:35:58 +0200
Alvaro  wrote:

> Ghostscript it is updated from 25 to 52 for
> the tutorial:
> 
> Installation OpenMeetings 6.1.0 on CentOS 7
> 
> ...you can download it.
> 
> Now will see about ffmpeg.
> 
> Respect to Lets Encrypt is nothing to update.
> 
> Thanks for your advise
> 
> Alvaro
> 
> 
> 
> 
> 
> 
> 
> On Wed, 8 Sep 2021 18:12:46 +0300
> Benson Muite  wrote:
> 
> > Hi,
> > 
> > The setup instructions created by Alvaro Bustos are really helpful. Is 
> > there some way to update them? Instructions for generating ssl 
> > certificate using Lets Encrypt which are at:
> > https://cwiki.apache.org/confluence/download/attachments/27838216/Installation%20SSL%20certificates%20and%20Coturn%20for%20OpenMeetings%206.1.0%20on%20CentOS%207.pdf
> > are outdated.
> > 
> > It may also be helpful to add information on opening ports using 
> > firewall-cmd in addtion to ip tables.
> > 
> > Regards,
> > Benson
> 
> 
> -- 
> Alvaro


-- 
Alvaro

Re: Setup instructions for Cent OS 7 and Cent OS 8

[Alvaro]

Ghostscript it is updated from 25 to 52 for
the tutorial:

Installation OpenMeetings 6.1.0 on CentOS 7

...you can download it.

Now will see about ffmpeg.

Respect to Lets Encrypt is nothing to update.

Thanks for your advise

Alvaro







On Wed, 8 Sep 2021 18:12:46 +0300
Benson Muite  wrote:

> Hi,
> 
> The setup instructions created by Alvaro Bustos are really helpful. Is 
> there some way to update them? Instructions for generating ssl 
> certificate using Lets Encrypt which are at:
> https://cwiki.apache.org/confluence/download/attachments/27838216/Installation%20SSL%20certificates%20and%20Coturn%20for%20OpenMeetings%206.1.0%20on%20CentOS%207.pdf
> are outdated.
> 
> It may also be helpful to add information on opening ports using 
> firewall-cmd in addtion to ip tables.
> 
> Regards,
> Benson


-- 
Alvaro

Re: Setup instructions for Cent OS 7 and Cent OS 8

[Benson Muite]

Installing Lets Encrypt

sudo yum install snapd
sudo systemctl enable --now snapd.socket
sudo snap install core
sudo snap refresh core
sudo snap install --classic certbot

This is from the main documentation:
https://snapcraft.io/docs/installing-snap-on-centos
https://certbot.eff.org/lets-encrypt/centosrhel7-other
https://certbot.eff.org/docs/install.html
 but last step fails for me with

error: cannot install "certbot": classic confinement requires snaps 
under /snap or symlink from

   /snap to /var/lib/snapd/snap

Another option is ZeroSSL ( https://zerossl.com ), but automation of 
this requires a subscription.


Firewalld commands

$ sudo firewall-cmd --permanent --add-port=3478/tcp
$ sudo firewall-cmd --permanent --add-port=3478/udp
$ sudo firewall-cmd --permanent --add-port=49152-65535/udp
$ sudo firewall-cmd --reload

On 9/8/21 6:14 PM, Maxim Solodovnik wrote:

You can contribute :)
Write your corrections here :)

On Wed, 8 Sept 2021 at 22:13, Benson Muite > wrote:


Hi,

The setup instructions created by Alvaro Bustos are really helpful. Is
there some way to update them? Instructions for generating ssl
certificate using Lets Encrypt which are at:

https://cwiki.apache.org/confluence/download/attachments/27838216/Installation%20SSL%20certificates%20and%20Coturn%20for%20OpenMeetings%206.1.0%20on%20CentOS%207.pdf


are outdated.

It may also be helpful to add information on opening ports using
firewall-cmd in addtion to ip tables.

Regards,
Benson



--
Best regards,
Maxim

Re: OpenMeetings in clusterings mode

[Maxim Solodovnik]

The current balancer is hardcoded and have no options for tuning (maybe
yet, ideas are welcome)

The clustering is room-based
So if you have 2 nodes

First user accessing the roomA will use node1,
all other users entering roomA will be redirected to node1

If userB will enter roomB he/she will be redirected to node2
As well as all other users entering roomB

if userC will enter roomC - the clustering logic will check
1) if free nodes exists
2) IF NOT: roomA and roomB capacity will be checked
Node with smaller total capacity will be used

i.e. if roomA is personal room for max. 15 users and roomB is public room
with max. 150 users
roomC will be opened at node1

I hope my description makes sense :)

On Fri, 3 Sept 2021 at 09:46, Aom Jeff Root  wrote:

> Hello,
> I have some questions about cluster of om
>
> In cluster mode, how is the redirection of users to the room appropriate
> for the server?
> What are the criteria?
> Are there any configurations to be made at the cluster level to know when
> it should redirect users ?
> We have which advantages with the cluster with 2 or more om ?
>
> thanks in advance.
>
> Kind regards,
> Jeffrey
>
> Le jeu. 2 sept. 2021 à 06:29, Aom Jeff Root  a
> écrit :
>
>> In the scenario where the second instance is not turned off manually.
>> I.e. they are in a meeting and suddenly he had a crash users connected to
>> this instance will not have access to the application (i.e. the server will
>> be offline)
>>
>> Le jeu. 2 sept. 2021 à 03:17, Maxim Solodovnik  a
>> écrit :
>>
>>> Hello Jeffrey,
>>>
>>> since taking cluster node offline is manual process I would expect it
>>> will happen while there will be no load
>>> I can imagine no mechanism to more users to other node
>>>
>>> might require some "Cluster admin" or something like this 
>>>
>>> On Thu, 2 Sept 2021 at 01:07, Aom Jeff Root 
>>> wrote:
>>>
 Hi dear all,
 Need help - clarifications on setting up cluster - OM

 When two OM instances are in cluster mode, is it normal that if one is
 turned off, the meeting (access) is no longer available for the users
 connected to this instance?
 Isn't there a way to switch them automatically to the instance that is
 active?

 Best regards,
 Jeffrey

 Le mar. 31 août 2021 à 06:12, Aom Jeff Root  a
 écrit :

> Hi dear all,
>
> When two OM instances are in cluster mode, is it normal that if one is
> turned off, the meeting (access) is no longer available for the users
> connected to this instance?
> Isn't there a way to switch them to the instance that is automatically
> active?
>
> Best regards,
> Jeffrey
>

>>>
>>> --
>>> Best regards,
>>> Maxim
>>>
>>

-- 
Best regards,
Maxim

Re: Video sharing from a link

[Maxim Solodovnik]

At the moment I'm not sure such integration is possible :(

On Wed, 8 Sept 2021 at 20:54, Lee But  wrote:

> @Denis, @Jeffry,
>
> Hello,
> youtube-dl works well on Linux to download YT videos to a local directory.
> Check the licence before downloading anything from YT. The YouTube Standard
> licence does not allow third-party distribution. Look for videos with a
> Creative Commons licence.
>
>
> On Tue, Sep 7, 2021 at 8:03 PM Jeffry Johnson 
> wrote:
>
>> I only ask because the business I support this is one of the basin
>> questions asked by almost all of our trainers. Thank you for the feedback
>>
>> On Tue, Sep 7, 2021, 00:25 Maxim Solodovnik  wrote:
>>
>>> OM has (maybe unofficial) requirement: all users should watch the same
>>> piece of video
>>> this requirement is harder to implement for youtube
>>> ( + now they add more aggressive advertisements)
>>>
>>> On Tue, 7 Sept 2021 at 03:21, Denis Noctor 
>>> wrote:
>>>
 No. But you can share a link via the chat box. If I require a YouTube
 video, I usually use an online video converter, download the video and then
 reupload it to a folder on OM and then drag and drop etc.

 Sent from my iPhone

 > On Sep 6, 2021, at 2:43 PM, Jeffry Johnson <
 jeffry.s.john...@gmail.com> wrote:
 >
 > Is there a function to share videos from links? Like say a YouTube
 video or similar on the whiteboard?

>>>
>>>
>>> --
>>> Best regards,
>>> Maxim
>>>
>>

-- 
Best regards,
Maxim

Re: video sharing

[Maxim Solodovnik]

Is the issue reproducible at demo and/or demo-next server?

On Wed, 8 Sept 2021 at 20:55, Lee But  wrote:

> Hello Ali,
> I see. Thank you. :)
>
> On Wed, Sep 8, 2021 at 1:35 PM Ali Alhaidary 
> wrote:
>
>> Hi Lee,
>>
>> The video was loaded after we stared the session, and even if it was
>> before, we used to know this issue, so we pause/resume the video so that
>> all participant can see it.
>>
>> Ali
>> On 9/8/21 4:25 PM, Lee But wrote:
>>
>> Hello Ali,
>> When you were helping me a few weeks ago, you loaded a video onto the
>> board, and I could see it. I can't remember if it was already loaded or
>> not, or whether it was because you gave me moderator controls.
>>
>> Regards,
>> Lee
>>
>>
>> On Tue, Sep 7, 2021 at 1:51 PM Ali Alhaidary 
>> wrote:
>>
>>> Not in our case, may be because our front end is moodle, but whenever a
>>> student joins after the video has started (does not mater if he exited
>>> or not), he will not be able to watch it until the teacher pause/resume.
>>>
>>> Ali
>>>
>>> On 9/7/21 4:38 PM, Alvaro wrote:
>>> > ...more exactly in my testing:
>>> >
>>> > The third user come in room when is playing
>>> > a video, and see only a image of the video.
>>> > Leave the room, and go in room again. Then
>>> > watch correctly the viseo playing.
>>> > Can leave room many times and every time
>>> > when re-entre in room will watch correctly
>>> > the playing video.
>>> >
>>> >
>>> > ---
>>> >
>>> >
>>> >
>>> > On Tue, 7 Sep 2021 15:04:11 +0200
>>> > Alvaro  wrote:
>>> >
>>> >> ...if the third, four, etc. see only a picture
>>> >> of the video, can leave the room and go in to
>>> >> room again and will watch correctly the video.
>>> >>
>>> >>
>>> >> 
>>> >>
>>> >>
>>> >>
>>> >> On Tue, 7 Sep 2021 14:59:26 +0200
>>> >> Alvaro  wrote:
>>> >>
>>> >>> My testing:
>>> >>>
>>> >>> Server in Lan:  Ubuntu 18.04 - OM 700 #27
>>> >>>
>>> >>> Clients (3): FF 91 (Ubuntu 18.04 - FF 91 (Ubuntu 18.04)
>>> >>> - FF 91 (OSx 11.5.2)
>>> >>>
>>> >>> The moderator play a video in whiteboard; the second user
>>> >>> is in the same room and can watch the video; the third
>>> >>> user in room can watch also the video.
>>> >>>
>>> >>> If the third user (for example) go in room when the video is
>>> >>> playing, can watch the video also.
>>> >>>
>>> >>> As Maxim said is needed the steps to reproduce the issue.
>>> >>>
>>> >>>
>>> >>> 
>>> >>>
>>> >>>
>>> >>> On Tue, 7 Sep 2021 13:10:17 +0300
>>> >>> Ali Alhaidary  wrote:
>>> >>>
>>>  1. Teacher joins a room.
>>> 
>>>  2. Student1 joins the same room.
>>> 
>>>  3. Teacher starts a video.
>>> 
>>>  4. The video plays on the whiteboard of the teacher and student1.
>>> 
>>>  5. Student2, 3, 4... joins the same room, video does not play, only
>>> a
>>>  picture of it is displayed. unless the teacher pauses the video and
>>>  starts again.
>>> 
>>>  Ali
>>> 
>>> 
>>>  On 9/7/21 9:10 AM, Maxim Solodovnik wrote:
>>> >
>>> > On Tue, 7 Sept 2021 at 10:10, Denis Noctor >> > > wrote:
>>> >
>>> >  The only time I’ve experienced a student not being able to
>>> view a
>>> >  video is when they’ve entered a room after the video has
>>> already
>>> >  commenced.
>>> >
>>> >
>>> > All room newcomers should be able to watch WB video
>>> > please provide steps to reproduce :))
>>> >
>>> >
>>> >  Sent from my iPhone
>>> >
>>> >  > On Sep 6, 2021, at 10:00 PM, Ali Alhaidary
>>> >  >> ali.alhaid...@the5stars.org>>
>>> >  wrote:
>>> >  >
>>> >  > It seems that it is not reproducible, closed the jira.
>>> >  >
>>> >  > Ali
>>> >  >
>>> >  >> On 9/7/21 5:04 AM, Ali Alhaidary wrote:
>>> >  >> Thanks, it seems that there is an issue with snapshot
>>> 7.0.0 as
>>> >  it is not playing in clients.
>>> >  >>
>>> >  >> I will create a jira...
>>> >  >>
>>> >  >> Ali
>>> >  >>
>>> >  >>> On 9/6/21 11:43 PM, Denis Noctor wrote:
>>> >  >>> It will play on their screen alright but can only be
>>> initiated
>>> >  / controlled by the moderator. However enabling presenter
>>> tool to
>>> >  students will give them access to the video controls also.
>>> Would
>>> >  love to see a volume slider added as video and audio files are
>>> >  much louder and sometimes catch students by surprise :)
>>> >  >>>
>>> >  >>> All the best,
>>> >  >>>
>>> >  >>> Denis
>>> >  >>>
>>> >  >>> Sent from my iPhone
>>> >  >>>
>>> >   On Sep 6, 2021, at 11:55 AM, Ali Alhaidary
>>> >  >> ali.alhaid...@the5stars.org>>
>>> >  wrote:
>>> >  
>>> >   Hi,
>>> >  
>>> >   I do not recall if playing a video (drag it and drop) on

Re: Setup instructions for Cent OS 7 and Cent OS 8

[Maxim Solodovnik]

You can contribute :)
Write your corrections here :)

On Wed, 8 Sept 2021 at 22:13, Benson Muite 
wrote:

> Hi,
>
> The setup instructions created by Alvaro Bustos are really helpful. Is
> there some way to update them? Instructions for generating ssl
> certificate using Lets Encrypt which are at:
>
> https://cwiki.apache.org/confluence/download/attachments/27838216/Installation%20SSL%20certificates%20and%20Coturn%20for%20OpenMeetings%206.1.0%20on%20CentOS%207.pdf
> are outdated.
>
> It may also be helpful to add information on opening ports using
> firewall-cmd in addtion to ip tables.
>
> Regards,
> Benson
>


-- 
Best regards,
Maxim

Setup instructions for Cent OS 7 and Cent OS 8

[Benson Muite]

Hi,

The setup instructions created by Alvaro Bustos are really helpful. Is 
there some way to update them? Instructions for generating ssl 
certificate using Lets Encrypt which are at:

https://cwiki.apache.org/confluence/download/attachments/27838216/Installation%20SSL%20certificates%20and%20Coturn%20for%20OpenMeetings%206.1.0%20on%20CentOS%207.pdf
are outdated.

It may also be helpful to add information on opening ports using 
firewall-cmd in addtion to ip tables.


Regards,
Benson

Re: video sharing

[Lee But]

Hello Ali,
I see. Thank you. :)

On Wed, Sep 8, 2021 at 1:35 PM Ali Alhaidary 
wrote:

> Hi Lee,
>
> The video was loaded after we stared the session, and even if it was
> before, we used to know this issue, so we pause/resume the video so that
> all participant can see it.
>
> Ali
> On 9/8/21 4:25 PM, Lee But wrote:
>
> Hello Ali,
> When you were helping me a few weeks ago, you loaded a video onto the
> board, and I could see it. I can't remember if it was already loaded or
> not, or whether it was because you gave me moderator controls.
>
> Regards,
> Lee
>
>
> On Tue, Sep 7, 2021 at 1:51 PM Ali Alhaidary 
> wrote:
>
>> Not in our case, may be because our front end is moodle, but whenever a
>> student joins after the video has started (does not mater if he exited
>> or not), he will not be able to watch it until the teacher pause/resume.
>>
>> Ali
>>
>> On 9/7/21 4:38 PM, Alvaro wrote:
>> > ...more exactly in my testing:
>> >
>> > The third user come in room when is playing
>> > a video, and see only a image of the video.
>> > Leave the room, and go in room again. Then
>> > watch correctly the viseo playing.
>> > Can leave room many times and every time
>> > when re-entre in room will watch correctly
>> > the playing video.
>> >
>> >
>> > ---
>> >
>> >
>> >
>> > On Tue, 7 Sep 2021 15:04:11 +0200
>> > Alvaro  wrote:
>> >
>> >> ...if the third, four, etc. see only a picture
>> >> of the video, can leave the room and go in to
>> >> room again and will watch correctly the video.
>> >>
>> >>
>> >> 
>> >>
>> >>
>> >>
>> >> On Tue, 7 Sep 2021 14:59:26 +0200
>> >> Alvaro  wrote:
>> >>
>> >>> My testing:
>> >>>
>> >>> Server in Lan:  Ubuntu 18.04 - OM 700 #27
>> >>>
>> >>> Clients (3): FF 91 (Ubuntu 18.04 - FF 91 (Ubuntu 18.04)
>> >>> - FF 91 (OSx 11.5.2)
>> >>>
>> >>> The moderator play a video in whiteboard; the second user
>> >>> is in the same room and can watch the video; the third
>> >>> user in room can watch also the video.
>> >>>
>> >>> If the third user (for example) go in room when the video is
>> >>> playing, can watch the video also.
>> >>>
>> >>> As Maxim said is needed the steps to reproduce the issue.
>> >>>
>> >>>
>> >>> 
>> >>>
>> >>>
>> >>> On Tue, 7 Sep 2021 13:10:17 +0300
>> >>> Ali Alhaidary  wrote:
>> >>>
>>  1. Teacher joins a room.
>> 
>>  2. Student1 joins the same room.
>> 
>>  3. Teacher starts a video.
>> 
>>  4. The video plays on the whiteboard of the teacher and student1.
>> 
>>  5. Student2, 3, 4... joins the same room, video does not play, only a
>>  picture of it is displayed. unless the teacher pauses the video and
>>  starts again.
>> 
>>  Ali
>> 
>> 
>>  On 9/7/21 9:10 AM, Maxim Solodovnik wrote:
>> >
>> > On Tue, 7 Sept 2021 at 10:10, Denis Noctor > > > wrote:
>> >
>> >  The only time I’ve experienced a student not being able to
>> view a
>> >  video is when they’ve entered a room after the video has
>> already
>> >  commenced.
>> >
>> >
>> > All room newcomers should be able to watch WB video
>> > please provide steps to reproduce :))
>> >
>> >
>> >  Sent from my iPhone
>> >
>> >  > On Sep 6, 2021, at 10:00 PM, Ali Alhaidary
>> >  > ali.alhaid...@the5stars.org>>
>> >  wrote:
>> >  >
>> >  > It seems that it is not reproducible, closed the jira.
>> >  >
>> >  > Ali
>> >  >
>> >  >> On 9/7/21 5:04 AM, Ali Alhaidary wrote:
>> >  >> Thanks, it seems that there is an issue with snapshot 7.0.0
>> as
>> >  it is not playing in clients.
>> >  >>
>> >  >> I will create a jira...
>> >  >>
>> >  >> Ali
>> >  >>
>> >  >>> On 9/6/21 11:43 PM, Denis Noctor wrote:
>> >  >>> It will play on their screen alright but can only be
>> initiated
>> >  / controlled by the moderator. However enabling presenter tool
>> to
>> >  students will give them access to the video controls also.
>> Would
>> >  love to see a volume slider added as video and audio files are
>> >  much louder and sometimes catch students by surprise :)
>> >  >>>
>> >  >>> All the best,
>> >  >>>
>> >  >>> Denis
>> >  >>>
>> >  >>> Sent from my iPhone
>> >  >>>
>> >   On Sep 6, 2021, at 11:55 AM, Ali Alhaidary
>> >  > ali.alhaid...@the5stars.org>>
>> >  wrote:
>> >  
>> >   Hi,
>> >  
>> >   I do not recall if playing a video (drag it and drop) on
>> the
>> >  on the whiteboard is shared with others or not ?
>> >  
>> >   Ali
>> >  
>> >
>> >
>> >
>> > --
>> > Best regards,
>> > Maxim
>> >>>
>> >>> --
>> >>>
>> >>
>> >> --
>> >>
>> >
>>
>

Re: Video sharing from a link

[Lee But]

@Denis, @Jeffry,

Hello,
youtube-dl works well on Linux to download YT videos to a local directory.
Check the licence before downloading anything from YT. The YouTube Standard
licence does not allow third-party distribution. Look for videos with a
Creative Commons licence.


On Tue, Sep 7, 2021 at 8:03 PM Jeffry Johnson 
wrote:

> I only ask because the business I support this is one of the basin
> questions asked by almost all of our trainers. Thank you for the feedback
>
> On Tue, Sep 7, 2021, 00:25 Maxim Solodovnik  wrote:
>
>> OM has (maybe unofficial) requirement: all users should watch the same
>> piece of video
>> this requirement is harder to implement for youtube
>> ( + now they add more aggressive advertisements)
>>
>> On Tue, 7 Sept 2021 at 03:21, Denis Noctor  wrote:
>>
>>> No. But you can share a link via the chat box. If I require a YouTube
>>> video, I usually use an online video converter, download the video and then
>>> reupload it to a folder on OM and then drag and drop etc.
>>>
>>> Sent from my iPhone
>>>
>>> > On Sep 6, 2021, at 2:43 PM, Jeffry Johnson 
>>> wrote:
>>> >
>>> > Is there a function to share videos from links? Like say a YouTube
>>> video or similar on the whiteboard?
>>>
>>
>>
>> --
>> Best regards,
>> Maxim
>>
>

Re: video sharing

[Ali Alhaidary]

Hi Lee,

The video was loaded after we stared the session, and even if it was 
before, we used to know this issue, so we pause/resume the video so that 
all participant can see it.


Ali

On 9/8/21 4:25 PM, Lee But wrote:

Hello Ali,
When you were helping me a few weeks ago, you loaded a video onto the 
board, and I could see it. I can't remember if it was already loaded 
or not, or whether it was because you gave me moderator controls.


Regards,
Lee


On Tue, Sep 7, 2021 at 1:51 PM Ali Alhaidary 
mailto:ali.alhaid...@the5stars.org>> wrote:


Not in our case, may be because our front end is moodle, but
whenever a
student joins after the video has started (does not mater if he
exited
or not), he will not be able to watch it until the teacher
pause/resume.

Ali

On 9/7/21 4:38 PM, Alvaro wrote:
> ...more exactly in my testing:
>
> The third user come in room when is playing
> a video, and see only a image of the video.
> Leave the room, and go in room again. Then
> watch correctly the viseo playing.
> Can leave room many times and every time
> when re-entre in room will watch correctly
> the playing video.
>
>
> ---
>
>
>
> On Tue, 7 Sep 2021 15:04:11 +0200
> Alvaro mailto:zurca...@gmail.com>> wrote:
>
>> ...if the third, four, etc. see only a picture
>> of the video, can leave the room and go in to
>> room again and will watch correctly the video.
>>
>>
>> 
>>
>>
>>
>> On Tue, 7 Sep 2021 14:59:26 +0200
>> Alvaro mailto:zurca...@gmail.com>> wrote:
>>
>>> My testing:
>>>
>>> Server in Lan:  Ubuntu 18.04 - OM 700 #27
>>>
>>> Clients (3): FF 91 (Ubuntu 18.04 - FF 91 (Ubuntu 18.04)
>>>             - FF 91 (OSx 11.5.2)
>>>
>>> The moderator play a video in whiteboard; the second user
>>> is in the same room and can watch the video; the third
>>> user in room can watch also the video.
>>>
>>> If the third user (for example) go in room when the video is
>>> playing, can watch the video also.
>>>
>>> As Maxim said is needed the steps to reproduce the issue.
>>>
>>>
>>> 
>>>
>>>
>>> On Tue, 7 Sep 2021 13:10:17 +0300
>>> Ali Alhaidary mailto:ali.alhaid...@the5stars.org>> wrote:
>>>
 1. Teacher joins a room.

 2. Student1 joins the same room.

 3. Teacher starts a video.

 4. The video plays on the whiteboard of the teacher and student1.

 5. Student2, 3, 4... joins the same room, video does not
play, only a
 picture of it is displayed. unless the teacher pauses the
video and
 starts again.

 Ali


 On 9/7/21 9:10 AM, Maxim Solodovnik wrote:
>
> On Tue, 7 Sept 2021 at 10:10, Denis Noctor
mailto:denisnoc...@gmail.com>
> >> wrote:
>
>      The only time I’ve experienced a student not being able
to view a
>      video is when they’ve entered a room after the video
has already
>      commenced.
>
>
> All room newcomers should be able to watch WB video
> please provide steps to reproduce :))
>
>
>      Sent from my iPhone
>
>      > On Sep 6, 2021, at 10:00 PM, Ali Alhaidary
>      mailto:ali.alhaid...@the5stars.org>
>>
>      wrote:
>      >
>      > It seems that it is not reproducible, closed the jira.
>      >
>      > Ali
>      >
>      >> On 9/7/21 5:04 AM, Ali Alhaidary wrote:
>      >> Thanks, it seems that there is an issue with
snapshot 7.0.0 as
>      it is not playing in clients.
>      >>
>      >> I will create a jira...
>      >>
>      >> Ali
>      >>
>      >>> On 9/6/21 11:43 PM, Denis Noctor wrote:
>      >>> It will play on their screen alright but can only
be initiated
>      / controlled by the moderator. However enabling
presenter tool to
>      students will give them access to the video controls
also. Would
>      love to see a volume slider added as video and audio
files are
>      much louder and sometimes catch students by surprise :)
>      >>>
>      >>> All the best,
>      >>>
>      >>> Denis
>      >>>
>      >>> Sent from my iPhone
>      >>>
>       On Sep 6, 2021, at 11:55 AM, Ali Alhaidary
>      mailto:ali.alhaid...@the5stars.org>
>>
>      wrote:
> 

Re: video sharing

[Lee But]

Hello Ali,
When you were helping me a few weeks ago, you loaded a video onto the
board, and I could see it. I can't remember if it was already loaded or
not, or whether it was because you gave me moderator controls.

Regards,
Lee


On Tue, Sep 7, 2021 at 1:51 PM Ali Alhaidary 
wrote:

> Not in our case, may be because our front end is moodle, but whenever a
> student joins after the video has started (does not mater if he exited
> or not), he will not be able to watch it until the teacher pause/resume.
>
> Ali
>
> On 9/7/21 4:38 PM, Alvaro wrote:
> > ...more exactly in my testing:
> >
> > The third user come in room when is playing
> > a video, and see only a image of the video.
> > Leave the room, and go in room again. Then
> > watch correctly the viseo playing.
> > Can leave room many times and every time
> > when re-entre in room will watch correctly
> > the playing video.
> >
> >
> > ---
> >
> >
> >
> > On Tue, 7 Sep 2021 15:04:11 +0200
> > Alvaro  wrote:
> >
> >> ...if the third, four, etc. see only a picture
> >> of the video, can leave the room and go in to
> >> room again and will watch correctly the video.
> >>
> >>
> >> 
> >>
> >>
> >>
> >> On Tue, 7 Sep 2021 14:59:26 +0200
> >> Alvaro  wrote:
> >>
> >>> My testing:
> >>>
> >>> Server in Lan:  Ubuntu 18.04 - OM 700 #27
> >>>
> >>> Clients (3): FF 91 (Ubuntu 18.04 - FF 91 (Ubuntu 18.04)
> >>> - FF 91 (OSx 11.5.2)
> >>>
> >>> The moderator play a video in whiteboard; the second user
> >>> is in the same room and can watch the video; the third
> >>> user in room can watch also the video.
> >>>
> >>> If the third user (for example) go in room when the video is
> >>> playing, can watch the video also.
> >>>
> >>> As Maxim said is needed the steps to reproduce the issue.
> >>>
> >>>
> >>> 
> >>>
> >>>
> >>> On Tue, 7 Sep 2021 13:10:17 +0300
> >>> Ali Alhaidary  wrote:
> >>>
>  1. Teacher joins a room.
> 
>  2. Student1 joins the same room.
> 
>  3. Teacher starts a video.
> 
>  4. The video plays on the whiteboard of the teacher and student1.
> 
>  5. Student2, 3, 4... joins the same room, video does not play, only a
>  picture of it is displayed. unless the teacher pauses the video and
>  starts again.
> 
>  Ali
> 
> 
>  On 9/7/21 9:10 AM, Maxim Solodovnik wrote:
> >
> > On Tue, 7 Sept 2021 at 10:10, Denis Noctor  > > wrote:
> >
> >  The only time I’ve experienced a student not being able to view
> a
> >  video is when they’ve entered a room after the video has already
> >  commenced.
> >
> >
> > All room newcomers should be able to watch WB video
> > please provide steps to reproduce :))
> >
> >
> >  Sent from my iPhone
> >
> >  > On Sep 6, 2021, at 10:00 PM, Ali Alhaidary
> >   ali.alhaid...@the5stars.org>>
> >  wrote:
> >  >
> >  > It seems that it is not reproducible, closed the jira.
> >  >
> >  > Ali
> >  >
> >  >> On 9/7/21 5:04 AM, Ali Alhaidary wrote:
> >  >> Thanks, it seems that there is an issue with snapshot 7.0.0
> as
> >  it is not playing in clients.
> >  >>
> >  >> I will create a jira...
> >  >>
> >  >> Ali
> >  >>
> >  >>> On 9/6/21 11:43 PM, Denis Noctor wrote:
> >  >>> It will play on their screen alright but can only be
> initiated
> >  / controlled by the moderator. However enabling presenter tool
> to
> >  students will give them access to the video controls also. Would
> >  love to see a volume slider added as video and audio files are
> >  much louder and sometimes catch students by surprise :)
> >  >>>
> >  >>> All the best,
> >  >>>
> >  >>> Denis
> >  >>>
> >  >>> Sent from my iPhone
> >  >>>
> >   On Sep 6, 2021, at 11:55 AM, Ali Alhaidary
> >   ali.alhaid...@the5stars.org>>
> >  wrote:
> >  
> >   Hi,
> >  
> >   I do not recall if playing a video (drag it and drop) on
> the
> >  on the whiteboard is shared with others or not ?
> >  
> >   Ali
> >  
> >
> >
> >
> > --
> > Best regards,
> > Maxim
> >>>
> >>> --
> >>>
> >>
> >> --
> >>
> >
>