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This article explains how to automatically deploy a Let's Encrypt TLS certificate to a Brother printer using Certbot and Cloudflare DNS integration via a Bash script.
•Brother printers require RSA-2048 certificates specifically, as they do not support more modern ECDSA key formats
•Certbot uses the Cloudflare DNS plugin to prove domain ownership by programmatically creating a DNS TXT record
•The open-source `brother-cert` tool converts PEM certificates to PKCS#12 format required by Brother printers and triggers an automatic reboot
•Cronicle is used as a job scheduler on a Mac Mini to automate the certificate renewal and deployment process
•Credentials are split into separate files (cloudflare.ini and printer.ini) to allow shared Cloudflare credentials while keeping device-specific passwords isolated
This summary was automatically generated by AI based on the original article and may not be fully accurate.
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