freebsd-ports/security/orthrus/pkg-message

[
{ type: install
  message: <<EOM
Manually edit pam.d/* files as needed and add in the required auth line and
remove any undesired fallback lines. Also ensure you arent already using opie!"

example in pam.d/system :

auth            sufficient      pam_orthrus.so

Please remember to delete any such entry BEFORE deinstalling this port or you
could lock yourself out !!
EOM
}
]