ns2.hol.gr has no NS records.
NS records for this zone are defined at hol.gr.
NS records for this zone are defined at hol.gr.
Question and response
Question
dig ns2.hol.gr. NS
Answer
The response has no answer records.
Authority
hol.gr. 7200 SOA ns0.hol.gr. hostmaster.hol.gr. 202511000 28800 7200 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0