Let's Encrypt

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Related

• Secure Sockets Layer
• openssl

Notes

• official site
  • subscriber agreement (PDF)
  • CertBot instructions

Files

• /etc/letsencrypt/
  • +archive/ - contains one folder per domain
    • +<domain folder>/ -- folder names are arbitrary, specified in renewal/ files
  • +live/
    • +<domain name> - contains links to the current files
  • +renewal/ - contains configurations to load (equivalent to sites-enabled/ in Apache/Nginx)

I'm guessing that LE adds a new fileset to archive/<domain folder>/ for each renewal, and updates the links in live/<domain name>.