Hi,

is it somehow possible to hide ip when putting dns this should be putted because it would low ddos attacks on servers.

There would be no point;
1. IP address is instantly revealed with a simple icmp echo request.
2. Your dns name will work just as well for a ddos attack

C:\>
C:\>ping gametracker.com

Pinging gametracker.com [104.16.28.9] with 32 bytes of data:
Reply from 104.16.28.9: bytes=32 time=7ms TTL=57
Reply from 104.16.28.9: bytes=32 time=6ms TTL=57
Reply from 104.16.28.9: bytes=32 time=6ms TTL=57
Reply from 104.16.28.9: bytes=32 time=6ms TTL=57

Ping statistics for 104.16.28.9:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 7ms, Average = 6ms

C:\>

oh tho somekind of a hide future should be cool to have

All domain names are mapped to an IP address, it just requires a simple ping request to get that information.

If someone is capable enough to set up a DDOS attack, they're sure as hell capable of performing a simple ICMP echo request.

Functionally, rendering any 'hiding' moot.