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eolas/neuron/9445c5fd-135c-4b0b-a70c-7a6fd45d9d58/Let's_Encrypt.md
thomasabishop c837869712 Autosave: 2025-04-05 10:32:40
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tags created
networks
server-management
encryption
Sunday, February 09, 2025

Let's Encrypt

ACME (Automatic Certificate Management Environment) is an open source protocol that automates the process of obtaining and renewing SSL/TLS certificates.

Let's Encrypt (LE) created this protocol and uses it to issue certificates.

Certbot is a popular ACME client that communicates with the LE servers to

  • validate domain ownership
  • request certificates
  • install the certificates on the web server
  • handle automatic renewals

Let's Encrypt was founded by the Internet Security Research Group. Certbot was created independently by the EFF and is maintained by them.