Quick Response Query for server-fail?

[Sukmoon Lee]

Hello.

I found the slow response query at dns server. This query is server fail response.
In reality, this query gets to response a server fail for foreign dns server.

For example, maincastad.com’s glue record has 3 name server, 5 ip address.
All glue record dns is not response. So, this query responses to slow.

Is it possible to cache and quick response like ncache(negative cache)?
Thanks.


$ dig @b.gtld-servers.net maincastad.com

; <<>> DiG 9.9.9-P5 <<>> @b.gtld-servers.net maincastad.com
; (2 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38238
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 5
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;maincastad.com.                        IN      A

;; AUTHORITY SECTION:
maincastad.com.         172800  IN      NS      ns1.site4now.net.
maincastad.com.         172800  IN      NS      ns2.site4now.net.
maincastad.com.         172800  IN      NS      ns3.site4now.net.

;; ADDITIONAL SECTION:
ns1.site4now.net.       172800  IN      A       198.98.124.111
ns1.site4now.net.       172800  IN      A       72.26.101.2
ns2.site4now.net.       172800  IN      A       209.132.245.131
ns2.site4now.net.       172800  IN      A       23.89.199.119
ns3.site4now.net.       172800  IN      A       208.118.63.170

;; Query time: 5 msec
;; SERVER: 192.33.14.30#53(192.33.14.30)
;; WHEN: Mon Feb 13 08:54:22 KST 2017
;; MSG SIZE  rcvd: 178
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