I run a server that is public available via single IP address. On the server I run several linux containers (lxc) and the one I would like to configure with letsencrypt is not available via port 443. Instead I use port 1443 and it’s no problem for me to access the apache webserver within the container using this port.
When I now run the
letsencrypt-auto I run into the following error:
Failed authorization procedure. owncloud.myspecificdomainidonotwanttotell.de (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Failed to connect to host for DVSNI challenge IMPORTANT NOTES: - The following errors were reported by the server: Domain: owncloud.myspecificdomainidonotwanttotell.de Type: connection Detail: Failed to connect to host for DVSNI challenge To fix these errors, please make sure that your domain name was entered correctly and the DNS A 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.
How do I specify another port (in my case 1443) for the DVSNI challenge?