Error with automatic certificate generation

I get an error as such while using automatic certificate generation

  • I port forwarded the required ports

  • I made necessary changes to the file
      #email used for certificate registration, could be omitted in case you already specified it in
  • below this line is my server logs
    15:55:46.271 INFO - Using data dir ‘server_data’
    15:55:47.058 INFO - Region : local. Host :
    15:55:47.907 INFO - Initializing gmail smtp mail transport. Username : SMTP host :
    15:55:47.991 INFO - Didn’t find custom user certificates.
    15:55:47.991 INFO - Didn’t find Let’s Encrypt certificates.
    15:55:47.991 INFO - Automatic certificate generation is turned ON.
    15:55:47.991 WARN - ATTENTION. Server certificate paths (cert : ‘C:\Users\Sanjay\Smome\Smome Server’, key : ‘C:\Users\Sanjay\Smome\Smome Server’) not valid. Using embedded server certs and one way ssl. This is not secure. Please replace it with your own certs.
    15:55:49.336 INFO - Hardware plain tcp/ip server listening at 8442 port.
    15:55:49.336 INFO - Hardware SSL server listening at 8441 port.
    15:55:49.354 INFO - Application server listening at 8443 port.
    15:55:49.357 INFO - HTTP API and WebSockets server listening at 8080 port.
    15:55:49.358 INFO - HTTPS API, WebSockets and Admin page server listening at 9443 port.
    15:55:49.358 INFO - Mqtt hardware server listening at 8440 port.
    15:55:49.374 INFO - Starting up certificate retrieval process for host and email
    15:55:54.251 INFO - Registered a new user, URI:
    15:55:55.297 INFO - Authorization for domain

  • this is where the log ends

How do I fix this

ping: unknown host

You need to register your domain in domain registrator.

how do I do this

Find a domain name registrar… register your domain and make it resolvable by public DNS servers :wink:

As per documentation -


just guide my what to type in this box,

Thank you for your help

In the picture you are asked to insert name and IP of your DNS (Domain Name Server).
You can either use Freenom DNS service or put google DNS IP (configuring your network to use the IP addresses and as your DNS servers) …