f0.mail.ntua.gr has no NS records.
NS records for this zone are defined at mail.ntua.gr.
NS records for this zone are defined at mail.ntua.gr.
Question and response
Question
dig f0.mail.ntua.gr. NS
Answer
The response has no answer records.
Authority
mail.ntua.gr. 86400 SOA achilles.noc.ntua.gr. noc.ntua.gr. 2026011500 43200 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0