== Letsencrypt/FAQ ==
について、ここに記述してください。

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<<TableOfContents()>>

FAQ: https://letsencrypt.org/docs/faq/

[[Letsencrypt/証明書/複数ドメイン対応]]

https://community.letsencrypt.org/t/two-unrelated-domains-on-one-server/1696


Two unrelated domains on one server 

== cert bot challenges ==
http://letsencrypt.readthedocs.io/en/latest/challenges.html

{{{
    Posting a specified file in a specified location on a web site (the HTTP-01 challenge)
    Offering a specified temporary certificate on a web site (the TLS-SNI-01 challenge)
    Posting a specified DNS record in the domain name system (the DNS-01 challenge)

}}}

== DNS-01 challenge ==
https://community.letsencrypt.org/t/how-to-use-dns-01-challenge/28593

== http-01 challenge ==
https://community.letsencrypt.org/t/whats-the-file-that-http-01-challenge-requires-at-challenge/42342

== Wildcard issuance ==
{{{
Does Let’s Encrypt issue wildcard certificates?

Yes. Wildcard issuance must be done via ACMEv2 using the DNS-01 challenge.
 See this post for more technical information.
}}}
https://community.letsencrypt.org/t/acme-v2-production-environment-wildcards/55578