Вы можете смеяться, а я познакомился с nslookup

[linux007]

# nslookup
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> metrics.by
Server: 8.8.8.8
Address: 8.8.8.8#53

** server can’t find metrics.by: NXDOMAIN
> set type=any
> beliashou.com
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
Name: beliashou.com
Address: 93.84.121.34
beliashou.com
origin = ns1.nameself.com
mail addr = support.regtime.net
serial = 1266670210
refresh = 10800
retry = 900
expire = 604800
minimum = 86400
beliashou.com nameserver = ns2.nameself.com.
beliashou.com nameserver = ns1.nameself.com.

Authoritative answers can be found from:
>
(c)