Please fill out the fields below so we can help you better. My domain is: Cannot reveal I ran this command: certbot certonly --standalone -d my.domain.com It produced this output: IMPORTANT NOTES: The following errors were reported by the server: Domain: my.domain.com Type: connection …

Urn:acme:error:connection

nickleus March 8, 2017, 4:34pm 4

open port 443 in yor firewall:
ufw allow 443/tcp

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Unable to renew certificates - expiring 10/03/17!