.\" This source code is released into the public domain. .Dd June 4, 2025 .Dt LFACME-HTTP 5 .Os .Sh NAME .Nm lfacme-http .Nd validate an ACME challenge via HTTP .Sh SYNOPSIS In .Xr domains.conf 5 : .Bd -ragged -offset indent .Ar domain challenge=http .Ed .Sh DESCRIPTION The .Nm challenge hook will respond to an ACME domain validation using an HTTP-based .Dq http-01 authorization. To use this challenge hook, configure one or more domains with .Dq challenge=http in .Xr domains.conf 5 . .Pp The .Dq http-01 challenge expects the authorization token to be served via HTTP at the path .Dq /.well-known/acme-challenge/ Ns Ar token on the domain to be validated. When .Nm responds to the challenge, it will place the token in the directory configured by .Ar ACME_HTTP_CHALLENGE_DIR in .Xr acme.conf 5 . This directory must be mapped to the appropriate path on the web server for the challenge to succeed. .Sh SEE ALSO .Xr acme.conf 5 , .Xr domains.conf 5 , .Xr lfacme-renew 8