can you help me, I will install let’s encrypt on my server, but I have problems like the one below when certbot, your help is very valuable to me.
root@conference-Inspiron-3671:/home/conference# sudo certbot --webroot -w /var/www/bigbluebutton-default/ -d meeting.bbn.co.id certonly
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for meeting.bbn.co.id
Using the webroot path /var/www/bigbluebutton-default for all unmatched domains.
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. meeting.bbn.co.id (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://meeting.bbn.co.id/.well-known/acme-challenge/A3N9IWOZsIcPDQHji1DTvcUtHN2uKjk1eGr5orZmAX4: Connection refused
The following errors were reported by the server:
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you’re using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.