First attempt failed with unsupported OS , "run certonly"
2nd attempt failed because I was using DDNS server I don’t own. I obtain a hostname from zapto.org. and so I guess I should use the hostname instead of just the domain?
3rd attempt failed with port 80 blocked - stop server.
4th attempt failed after changing firewall but not router
5th attempt failed with “Error creating new cert :: Too many certificates already issued…”
I attempted to run /letsencrypt-auto revoke --cert-path … and fails with
"Unable to load: [(‘PEM routines’, ‘PEM_read_bio’, ‘no start line’)],[(‘asn1 encoding routines’, ‘ASN1_CHECK_TLEN’, ‘wrong tag’), (‘asn1 encoding routines’, ‘ASN1_ITEM_EX_D2I’, ‘nested asn1 error’)]"
I am only guessing that I have failed to obtain a certificate because I see only 2 pem files - one for CSR and one for private key…