Is it possible to have subdomains split on to two DNS servers?

DNS server 1: mydomain.com A x.x.x.x
DNS server 1: www.mydomain.com CNAME mydomain.com

DNS server 2: xxx.mydomain.com A x.x.x.y

I need this because only one subdomain must be used with geo dns service and I want to leave rest of configuration on current DNS servers.

  • 1
    You need to delegation NS records for that subdomain to the other nameserver. – Florin Asăvoaie Dec 3 '18 at 8:57

You can create an NS record for xxx.example.com and point it to a secondary name server.

; Normal entries for the main domain go here
@     A
www   CNAME   mydomain.com.

; Split of a subdomain to a second DNS server
xxx   NS      ns2.example.com.
ns2   A

This secondary name server can then provide the A record for its apex: “xxx.example.com”.

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