Detail: Failed to connect to host for DVSNI challenge

[hejialin]

`# ./letsencrypt-auto --apache -d jardevs.com -d www.jardevs.com
Checking for new version…
Requesting root privileges to run letsencrypt…
/root/.local/share/letsencrypt/bin/letsencrypt --apache -d jardevs.com -d www.jardevs.com
Failed authorization procedure. www.jardevs.com (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, jardevs.com (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: www.jardevs.com
  Type: connection
  Detail: Failed to connect to host for DVSNI challenge

  Domain: jardevs.com
  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.

  
  
  `

/*****************************************/

netstat -tulpn | grep :443

[pfg]

Are you sure you want to use the --apache plugin? Your domain currently shows a nginx welcome page.

The webroot plugin might work better for you if you’re using nginx.

Also, worth mentioning that the apache plugin works on port 443, so make sure you’re not blocking external access to that port in your firewall.