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[TOC] > [Let's Encrypt](https://letsencrypt.org/) ## 概述 为了推广HTTPS协议,电子前哨基金会EFF成立了[Let's Encrypt](https://letsencrypt.org/),提供免费证书([教程](https://www.digitalocean.com/community/tags/let-s-encrypt?type=tutorials)和[工具](https://certbot.eff.org/)) ## certbot 教程 [教程](https://www.digitalocean.com/community/tags/let-s-encrypt?type=tutorials)