Same IP, multiple DNS Servers?

Hello Fellow Gurus Same IP, multiple DNS Servers?

I'm a little confused over this scenario. So just need confirmation if my understanding is correct. Hopefully this info can help others.

I have 2 IPs: 1.1.1.1 & 1.1.1.2

Can I point multiple nameservers at many registrars using those IPs, i.e. ns1.mydomain.com ns1.yourdomain.com ns1.herdomain.com all use same IP 1.1.1.1 ?? That may include registrar not under ICANN (i.e. country-level).

I think it is theoretically possible? Any problem with this approach? Or do we need unique IP for each "host/ns" registered at registrar? Same IP, multiple DNS Servers?

Secondly in tinydns, we set it up to listen to specific IP address for a particular nameserver. Do we have a similar setup in BIND, coz its been sometime I played with BIND Same IP, multiple DNS Servers? Do BIND need separate instances/process for each NS to serve queries? Or one process on one machine can answer all kinds of queries?

Thanks in advance! Same IP, multiple DNS Servers?

 

 

 

 

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