ns2.acoustic-adm.com has no NS records.
NS records for this zone are defined at acoustic-adm.com.
NS records for this zone are defined at acoustic-adm.com.
Question and response
Question
dig ns2.acoustic-adm.com. NS
Answer
The response has no answer records.
Authority
acoustic-adm.com. 60 SOA ns1.acoustic-adm.com. hostmaster.acoustic-adm.com. 1 7200 900 1209600 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0