pam_ftpusers(8) on FreeBSD
The text 6c2a03c2e04d, as FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
ftpusers PAM module
The text 6c2a03c2e04d, as FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE shipped it.
ftpusers PAM module