dns2.sezampro.rs has no NS records.
NS records for this zone are defined at sezampro.rs.
NS records for this zone are defined at sezampro.rs.
Question and response
Question
dig dns2.sezampro.rs. NS
Answer
The response has no answer records.
Authority
sezampro.rs. 3600 SOA c-olymp.sezampro.rs. hostmaster.sezampro.rs. 2017062014 900 600 86400 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0