Nmap firewall IDS/IPS Evasion Medium weird issue local vs pwnBox

HTB Content Machines
1

hi,

can someone explain me why on my local machine by doing:
sudo nmap -p 53 -sU -sV 10.129.87.157
I get:
53/udp open domain NLnet Labs NSD

and on pwnBox I see
53/udp open domain (unknown banner: HTB{...})

? I bet its something related to vpn, but not sure.