linux1.vps.wbsprt.com has no NS records.
NS records for this zone are defined at wbsprt.com.
NS records for this zone are defined at wbsprt.com.
Question and response
Question
dig linux1.vps.wbsprt.com. NS
Answer
The response has no answer records.
Authority
wbsprt.com. 2560 SOA ns1.websupport.sk. admin.websupport.sk. 1771878893 7200 2048 1048576 2560
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0