Hi guys, I’m new to setting up ubuntu server, and I wanted to enabled my apache web server to be accessed using “https”… I had followed the steps provided by certbot.org… and i still face some issue when setting up… The version of Ubuntu server that i’m currently using is 16.04.
After i entered the command “sudo certbot --apache”, I’ve been prompted with the error stated below…
Failed authorization procedure. teleconference.co (tls-sni-01): urn:acme:error:connection ::
The server could not connect to the client to verify the domain :: DNS problem: NXDOMAIN
looking up A for teleconference.co
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: teleconference.co
Type: connection
Detail: DNS problem: NXDOMAIN looking up A for teleconference.my
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 communication 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.
I had found several similar issues from this forum, i had tried to enable my https port 443 in firewall using the command “sudo ufw allow 443”… and still having the same issue…
Need some helps from experts for this issues… Thanks in advanced