NTP-сервер из System Blue

[flytux]

Синяя система имеет встроенный сервер NTP-stratum-1.

Thank you for information. I would like to ask you to clarify two things.
First, is this correct that all of outher (WAN) users can sync a time by SystemsBlue NTP server (if port #123/udp is forwarded by router)?
And second - what kind of software provide SystemBlue's NTP-service? Is this BSD-like 'ntpd'  or self-made implementation?

Regards,