We got case, we want rename base dn from dc=roomit,dc=com to dc=roomit,dc=tech
Just do it :
Remove all data in NEW SERVER AD
cp /etc/samba/smb.conf ~/ && systemctl stop samba && rm -rf /etc/samba && mkdir -p /etc/samba
Dump Data Samba ad dc in OLD SERVER AD
samba-tool domain backup rename ROOMIT ROOMIT.TECH --server=ad.roomit.com --targetdir=/opt/ -Udwiyan.wijatmiko
copy data dumped *.tar.gz to NEW Server AD and restore
samba-tool domain backup restore --backup-file=filebackupdumped.tar.gz --newservername=addc1 --targetdir=/etc/samba