thietkeapp.quangninh.vn	IN	A	103.90.235.173
thietkeapp.quangninh.vn	IN	NS	ns-b1.tenten.vn.
thietkeapp.quangninh.vn	IN	NS	ns-b2.tenten.vn.
thietkeapp.quangninh.vn	IN	NS	ns-b3.tenten.vn.