[Samba] How to make an unattended backup

[Sergio Belkin]

Hi,

I use AptVanBelle repo for samba, is there a way to backup in unattended
way (I mean via cron) the DC?

If I use
samba-tool domain backup online --targetdir=/srv/backup --server=
samba4.example.com  -k yes -d1

It works, by it ask for password Administrator.

What is the best practice to do it?

Thanks in advance!
-- 
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Sergio Belkin
LPIC-2 Certified - http://www.lpi.org