https://www.nginx.com/blog/using-free-ssltls-certificates-from-lets-encrypt-with-nginx/
root@hdcesrv03:~# certbot -d mynotes.steffenrohr.com --manual --preferred-challenges dns certonly
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Requesting a certificate for mynotes.steffenrohr.com
Performing the following challenges:
dns-01 challenge for mynotes.steffenrohr.com
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Please deploy a DNS TXT record under the name
_acme-challenge.mynotes.steffenrohr.com with the following value:
fJnPK_4bfS85QlRtllQUej_RYbPeQDegCM1hMhtPy9Q
Before continuing, verify the record is deployed.
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Press Enter to Continue
Waiting for verification...
Cleaning up challenges
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/mynotes.steffenrohr.com/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/mynotes.steffenrohr.com/privkey.pem
Your certificate will expire on 2023-02-16. To obtain a new or
tweaked version of this certificate in the future, simply run
certbot again. To non-interactively renew *all* of your
certificates, run "certbot renew"
- If you like Certbot, please consider supporting our work by:
Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le
root@hdcesrv03:~# certbot renew
Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Processing /etc/letsencrypt/renewal/mynotes.steffenrohr.com.conf
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Cert not yet due for renewal
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The following certificates are not due for renewal yet:
/etc/letsencrypt/live/mynotes.steffenrohr.com/fullchain.pem expires on 2023-02-16 (skipped)
No renewals were attempted.
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root@hdcesrv03:~#