bbb-install.sh with option -x fails

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IgelEiHarry

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Apr 16, 2026, 5:33:28 AM (5 days ago) Apr 16
to BigBlueButton-Setup
Hi,

we try to install BBB current version on a local server (not reachable from the internet) with option -x to be able to do a manual DNS challange. 
But the script ends up with the following error (each time we try):

Please deploy a DNS TXT record under the name:

_acme-challenge.<servername>.

with the following value:

<key>

Before continuing, verify the TXT record has been deployed. Depending on the DNS
provider, this may take some time, from a few seconds to multiple minutes. You can
check if it has finished deploying with aid of online tools, such as the Google
Admin Toolbox: https://toolbox.googleapps.com/apps/dig/#TXT/_acme-challenge.ubuntu05.splend-it.de.
Look for one or more bolded line(s) below the line ';ANSWER'. It should show the
value(s) you've just added.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Press Enter to ContinueAn unexpected error occurred:
EOFError

Ask for help or search for solutions at https://community.letsencrypt.org.
...

So this error occurs BEFORE we can press Enter. It seems the script is not waiting for user input at this point and throws the Error right away.

Best regards,
Harry

Jean Pluzo

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Apr 17, 2026, 6:58:23 AM (4 days ago) Apr 17
to BigBlueButton-Setup
Hi,

so, if I understood this correctly you're trying to validate a certificate from certbot on a server that has... no internet connection?
I don't think this is going to work. 
A better approach (which some of us have tried) is to make a certificate yourself and add it to the certificates in ubuntu. The steps are more or less:
- Become a CA (certificate authority, only for yourself).
- Request a certificate to your CA.
- Approve it/sign it
- Get certificate and install/configure it in your BBB/Ubuntu server as well as on your clients (Firefox, Chrome, etc.).

Regards,
J.

IgelEiHarry

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Apr 17, 2026, 7:07:52 AM (4 days ago) Apr 17
to BigBlueButton-Setup
Hi,

the server has of course an internet connection but it is not reachable by his name from the internet (like any other host that resides in a local intranet). 
Thats why we do the manual DNS challange. And this always worked properly for older BBB-versions.
Maybe there is a bug in the bbb-install.sh script? 

Best regards,
Harry

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