no presention and whiteboard

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Dániel Kiss-Kálmán

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Jul 2, 2019, 12:51:52 PM7/2/19
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Hi
I just installed bbb2.beta.12, but no presentation appears and there is no whiteboard on the screen. Every other seems working, but when I upload a presentation (i.e. pdf) it doesnt appear.
Any help is appreciated.
Regards, Daniel

Chad Pilkey

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Jul 2, 2019, 1:01:17 PM7/2/19
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Check that SVG generation is enabled in bigbluebutton.properties. Also, do you get an A rating from this SSL test? https://www.ssllabs.com/ssltest/

Dániel Kiss-Kálmán

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Jul 2, 2019, 3:12:21 PM7/2/19
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Thanks the quick response.
It is B, 2. note is "extra download"
i modified only to force html5 instead of flash.
if it is B it wont work?
i updated certs on my ubuntu, tested with wget http://bbb.xxx.hu/default.pdf

Chad Pilkey

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Jul 2, 2019, 3:48:12 PM7/2/19
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With only a "B" you will likely see errors in the HTML5 server logs because it can't download the slide. You can see the HTML5 server logs with "journalctl -u bbb-html5".

Also, double check that "svgImagesRequired" in /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties is set to "true".

Dániel Kiss-Kálmán

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Jul 3, 2019, 2:49:08 AM7/3/19
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Hi
my bigbluebutton.properties file
...
swfSlidesRequired=false
..
svgImagesRequired=true
...
---------
it must be something like that, I tried svgImagesRequired=false on another bbb installation, and the result is the same.
May be the converter application is missing?

ps: I purged bbb-demo, so tomcat7 is inactive. But it seems no need it at all. (?)
thanks, Daniel

Chad Pilkey

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Jul 3, 2019, 12:40:11 PM7/3/19
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The property should be set to "true" if you're using the HTML5 client. You also have to restart bbb-web after making any changes to bigbluebutton.properties. If it was already true then that isn't the cause.

The likely cause is still the certificate. The HTML5 server (nodejs) needs to be able to download the SVG and certificate issues will cause the download to fail. It will all be in the HTML5 logs.

Regarding tomcat7, it's only needed with bbb-demo. If you're not using the demos it can be removed.

Dániel Kiss-Kálmán

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Jul 3, 2019, 12:51:07 PM7/3/19
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Ok, after copying ny certs and Update-ca-certificates wget https is working. Isnt it enough? What else can i do? I dont really want to use letsencrypt, but seems have to ;/
Thanks Daniel

Chad Pilkey

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Jul 3, 2019, 1:18:48 PM7/3/19
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You can use certs from any globally trusted certificate authority. We suggest Let's Encrypt because it's free and can be automated, but it isn't a requirement.

Did you re-run the SSL test after updating the certs? It's the best tool for validating the SSL configuration.

Also, have you looked at the HTML5 server logs? I'm still waiting to see about that. "journalctl -u bbb-html5"

Dániel Kiss-Kálmán

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Jul 5, 2019, 2:42:04 AM7/5/19
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bbb-htm5 log:
Jul  5 08:36:22 asz-xxx systemd_start.sh[1354]: #033[32minfo#033[39m: Set downloadable status on presentation {d2d9a672040fbde2a47a10bf6c37b6a4b5ae187f-1562308572947 in meeting {b308d33a28b23b9edfa674216ba614aaf4d007ec-1562308571695}
Jul  5 08:36:22 xxx-bbb systemd_start.sh[1354]: #033[31merror#033[39m: No file found. Error: unable to verify the first certificate
Jul  5 08:36:22 xxx-bbb systemd_start.sh[1354]: message repeated 5 times: [ #033[31merror#033[39m: No file found. Error: unable to verify the first certificate]
Jul  5 08:36:22 xxx-bbb systemd_start.sh[1354]: #033[31merror#033[39m: Error parsing image size. Error: unable to verify the first certificate. uri=https://bbb.xxx.hu/bigbluebutton/presentation/b308d33a28b23b9edfa674216ba614aaf4d007ec-1562308571695/b308d33a28b23b9edfa674216ba614aaf4d007ec-1562308571695/d2d9a672040fbde2a47a10bf6c37b6a4b5ae187f-1562308572947/svg/3

is working after copying the cert and update-ca-certificate cmline

I tried npm config set strinct-ssl -g without success

Could you please tell me how and to what application to tell my cert should be trusted?

Thanks, Daniel

Dániel Kiss-Kálmán

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Jul 5, 2019, 3:53:36 AM7/5/19
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npm config set cafile=/etc/nginx/ssl/bbbxxx.crt -g
did the trick

Chad Pilkey

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Jul 5, 2019, 12:51:36 PM7/5/19
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Interesting. I definitely didn't know about that command before. Thanks for posting back with the solution.

Prathyusha Reddy

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Jul 10, 2019, 2:08:53 AM7/10/19
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Hi chand,

Even I am Facing the same issue.But SSL Server test is 'A' for me .. Please advise any thing to be changed.

Dániel Kiss-Kálmán

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Jul 10, 2019, 2:39:56 AM7/10/19
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Pls first check on your server command line:
wget https://yourserver/default.pdf
is ok or not
It should download default.pdf to your server
Message has been deleted

Prathyusha Reddy

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Jul 10, 2019, 3:26:06 AM7/10/19
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Hi,

Got the below out put. Please checka dn advise.


root@Ubuntu-1604-xenial-64-LTS ~ # wget https://teach.xxxx.in/default.pdf
--2019-07-10 09:21:55--  https://teach.xxxx.in/default.pdf
Resolving teach.xxxx.in (teach.xxxxx.in)... xx.xx.xx.xx
Connecting to teach.xxxxx.in (teach.xxx.in)|xx.xx.xx.xx|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 369690 (361K) [application/pdf]
Saving to: ‘default.pdf’

default.pdf                                100%[=====================================================================================>] 361.03K  --.-KB/s    in 0.001s  

2019-07-10 09:21:55 (260 MB/s) - ‘default.pdf’ saved [369690/369690]


On Wednesday, July 10, 2019 at 12:41:43 PM UTC+5:30, Prathyusha Reddy wrote:
Hi,

Thank you so much for quick response.
I am getting below response when i used wget https://yourserver/default.pdf.Please check and advice

root@Ubuntu-1604-xenial-64-LTS ~ # wget https://xxxx/default.pdf
--2019-07-10 09:08:15--  https://xxxxx/default.pdf
Connecting to xxxxx:443... connected.
    ERROR: certificate common name ‘teach.xxxx.in’ doesn't match requested host name ‘xxxxx’.
To connect to xxxxxxx insecurely, use `--no-check-certificate'.

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Dániel Kiss-Kálmán

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Jul 10, 2019, 3:26:12 AM7/10/19
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Given a CA certificate file foo.crt, follow these steps to install it on Ubuntu:

Create a directory for extra CA certificates in /usr/share/ca-certificates:

sudo mkdir /usr/share/ca-certificates/extra

Copy the CA .crt file to this directory:

sudo cp foo.crt /usr/share/ca-certificates/extra/foo.crt

Let Ubuntu add the .crt file's path relative to /usr/share/ca-certificates to /etc/ca-certificates.conf:

run:

sudo update-ca-certificates

Try wget https://..... Again

Dániel Kiss-Kálmán

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Jul 10, 2019, 3:40:36 AM7/10/19
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Maybe an alternate/easier way use install script and another certificate
Please read:
https://docs.bigbluebutton.org/2.2/install.html#using-lets-encrypt

Or 3. U can try maybe the easiest way:
download install script

wget -qO- https://ubuntu.bigbluebutton.org/bbb-install.sh | bash -s -- -h

And use it with letsencrypt certificate

./bbb-install.sh -v xenial-220-beta -s bbb.example.com -e in...@example.com -g

Prathyusha Reddy

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Jul 10, 2019, 4:35:19 AM7/10/19
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Hi,
Installed bigbluebutton using the script as you suggested but still facing the same issue not able to upload presentation and no white board.Please advice any thing issue from os side or any applications need to check or any logs.

Thank and regards,
Prathyusha 




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Dániel Kiss-Kálmán

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Jul 10, 2019, 5:00:11 AM7/10/19
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Pls check the name of your server the the name in the bbb-install.sh.... command line

If wget is working ur on thr half way

You can config nodejs to use the same certificate

sudo npm config set cafile=/etc/nginx/ssl/yourxxxx.crt -g

Reboot your server and try bbb


If still not ok, check /var/log/syslog file

Prathyusha Reddy

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Jul 10, 2019, 5:27:47 AM7/10/19
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Hi Daniel,

Thanks for your support.

We have done all the checks please find the attached /var/log/syslog file

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syslog

Chad Pilkey

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Jul 10, 2019, 1:49:07 PM7/10/19
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Prathyusha,

Your issue isn't related to Dániel's. Your problem is the same as in this post, https://groups.google.com/forum/#!topic/bigbluebutton-dev/fLxENWbz238. I'm still not sure on the cause, but I put some commands to run in the other thread. Could you please try them and respond back in there or in a new post.

On Wednesday, July 10, 2019 at 5:27:47 AM UTC-4, Prathyusha Reddy wrote:
Hi Daniel,

Thanks for your support.

We have done all the checks please find the attached /var/log/syslog file

On Wed, Jul 10, 2019 at 2:30 PM Dániel Kiss-Kálmán <kisskalm...@gmail.com> wrote:
Pls check the name of your server the the name in the bbb-install.sh.... command line

If wget is working ur on thr half way

You can config nodejs to use the same certificate

sudo npm config set cafile=/etc/nginx/ssl/yourxxxx.crt -g

Reboot your server and try bbb


If still not ok, check /var/log/syslog file

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Nikos Chortarias

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Jul 11, 2019, 3:51:25 AM7/11/19
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Hi,
i have the same problem (no presention and whiteboard) after upgrading from version 2.0 (fully working) to 2.2.
When i try to upload a presentation i get the errors shown at the logs attached. 
Any ideas please?
Thank you in advance.
N.

bbb_log.txt

Dániel Kiss-Kálmán

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Jul 11, 2019, 5:20:00 AM7/11/19
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Sorry no idea here, only purge and clean install.
bests, Daniel
Ui: before do so pls try to open a new topic

xort

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Jul 11, 2019, 5:48:44 AM7/11/19
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Daniel,
sorry i wasn't clear enough.
I followed the instructions in order to upgrade from version 2.0 to 2.2 according to which i had to purge and clean install.
I would be grateful if you could take a look at the log file i attached on my previews post. It has to be something about the Grails framework.

Jul 11 10:32:33 bbb01 run-prod.sh[28692]: 2019-07-11T10:32:33.521+03:00 ERROR o.a.c.c.C.[.[.[.[grailsDispatcherServlet] - Servlet.service() for servlet [grailsDispatcherServlet] in context with path [] threw exception [Could not resolve view with name 'upload' in servlet with name 'grailsDispatcherServlet'] with root cause
Jul 11 10:32:33 bbb01 run-prod.sh[28692]: javax.servlet.ServletException: Could not resolve view with name 'upload' in servlet with name 'grailsDispatcherServlet'

Thank you
N.

Fred Dixon

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Jul 11, 2019, 9:35:30 AM7/11/19
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Hi,

Can you check the permissions of the directory
  
  /var/bigbluebutton

and let us know if they are owned by tomcat7 or bigbluebutton.  If tomcat7, run the command

  sudo chown -R bigbluebutton:bigbluebutton /var/bigbluebutton
  sudo bbb-conf --restart

and try uploading a presentation again.  Let us know if the above works for you.


Regards,... Fred

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xort

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Jul 11, 2019, 12:12:18 PM7/11/19
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Dear Fred, you are right! I corrected the permissions and that fixed the problem.
I got a warning about the permissions of screenshare directory:
# Warning: Detected the directory
#    /var/bigbluebutton/screenshare
# is not owned by red
5
so i fixed that too and everything is working.

Thank you very much for your help! Much appreciated!
N.

On Thursday, July 11, 2019 at 4:35:30 PM UTC+3, Fred Dixon wrote:
Hi,

Can you check the permissions of the directory
  
  /var/bigbluebutton

and let us know if they are owned by tomcat7 or bigbluebutton.  If tomcat7, run the command

  sudo chown -R bigbluebutton:bigbluebutton /var/bigbluebutton
  sudo bbb-conf --restart

and try uploading a presentation again.  Let us know if the above works for you.


Regards,... Fred

On Thu, Jul 11, 2019 at 2:48 AM xort <n.cho...@gmail.com> wrote:
Daniel,
sorry i wasn't clear enough.
I followed the instructions in order to upgrade from version 2.0 to 2.2 according to which i had to purge and clean install.
I would be grateful if you could take a look at the log file i attached on my previews post. It has to be something about the Grails framework.

Jul 11 10:32:33 bbb01 run-prod.sh[28692]: 2019-07-11T10:32:33.521+03:00 ERROR o.a.c.c.C.[.[.[.[grailsDispatcherServlet] - Servlet.service() for servlet [grailsDispatcherServlet] in context with path [] threw exception [Could not resolve view with name 'upload' in servlet with name 'grailsDispatcherServlet'] with root cause
Jul 11 10:32:33 bbb01 run-prod.sh[28692]: javax.servlet.ServletException: Could not resolve view with name 'upload' in servlet with name 'grailsDispatcherServlet'

Thank you
N.

On Thursday, July 11, 2019 at 12:20:00 PM UTC+3, Dániel Kiss-Kálmán wrote:
Sorry no idea here, only purge and clean install.
bests, Daniel
Ui: before do so pls try to open a new topic

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Prathyusha Reddy

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Jul 12, 2019, 1:17:07 AM7/12/19
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Hi,
I to got the same warning.
# Warning: Detected the directory
#    /var/bigbluebutton/screenshare
# is not owned by red5
Restarted the bbb., but still the same issue unable to upload the presentation

Could you please suggest how to fix that issue.


Thanks and Regards,
Prathyusha.




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Fred Dixon

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Jul 12, 2019, 1:24:45 AM7/12/19
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Hi Prathyusha,

What is the output of the following command

  ls -al /var/bigbluebutton

Regards,... Fred



For more options, visit https://groups.google.com/d/optout.

Prathyusha Reddy

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Jul 12, 2019, 1:30:59 AM7/12/19
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Hi Fred,

Please check the o/p of ls -al /var/bigbluebutton


root@Ubuntu-1604-xenial-64-LTS / # ls -al /var/bigbluebutton
total 204
drwxr-xr-x 51 bigbluebutton bigbluebutton 4096 Jul 12 06:50 .
drwxr-xr-x 16 root          root          4096 Jul  6 09:22 ..
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 09:24 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562397886515
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 09:26 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562398017692
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 10:33 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562402017595
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 10:34 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562402066941
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 10:34 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562402079283
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 10:47 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562402876227
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 10:48 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562402901259
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:05 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562403936224
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:25 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562405131540
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:25 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562405146497
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:26 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562405162192
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:26 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562405177936
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 11:48 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562406484032
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 12:56 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562410587085
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 13:10 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562411444680
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 07:25 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562563527851
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 07:52 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562565138389
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 08:02 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562565762279
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 08:02 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562565775470
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 10:28 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562574533209
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 10:30 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562574631580
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  8 11:03 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562576582761
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  9 07:51 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562651491348
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  9 07:52 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562651546669
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 07:27 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562736429309
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 07:28 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562736490961
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 07:33 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562736823112
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 08:16 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562739399669
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 08:27 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562740043364
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 09:27 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562743625101
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 10:24 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562747074167
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 10:28 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562747334049
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 10 11:18 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562750312400
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 12 06:38 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562906310535
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 12 06:50 183f0bf3a0982a127bdb8161e0c44eb696b3e75c-1562906999983
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 12 06:39 530c03d1f159912e0741eebb88f49c738e543ea1-1562906355197
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 12 06:43 ac727ff891d398ca8911206c1d4848d6496f9aa1-1562906589122
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul 12 06:49 ac727ff891d398ca8911206c1d4848d6496f9aa1-1562906962798
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jul  6 09:20 basic_stats
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jul 10 10:16 blank
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 09:18 captions
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jun 24 00:29 configs
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jul  6 09:20 deleted
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jun 24 00:33 diagnostics
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 09:18 playback
drwxr-xr-x  3 bigbluebutton bigbluebutton 4096 Jul  6 09:20 published
drwxr-xr-x  6 bigbluebutton bigbluebutton 4096 Jul  6 09:20 recording
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jun  7 22:25 screenshare
drwxr-xr-x  2 bigbluebutton bigbluebutton 4096 Jul  6 09:20 unpublished


Fred Dixon

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Jul 12, 2019, 1:52:36 AM7/12/19
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Hi Prathyusha,

Can you post the output of

sudo bbb-conf --check
dpkg -l | grep bbb

The log contains a lot of error messages -- the above will help us take a step towards figuring out what is amiss in your configuration.


Regards,... Fred


For more options, visit https://groups.google.com/d/optout.

Fred Dixon

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Jul 12, 2019, 2:40:03 AM7/12/19
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