Can't dig +trace?

[unbound at fongaboo.com]

I have unbound running and clients using dig seem not to be able to trace?


dig +trace www.amiga.com

; <<>> DiG 9.6.2-P2 <<>> +trace www.amiga.com
;; global options: +cmd
;; Received 12 bytes from <MY-UNBOUND-IP>#53(MY-UNBOUND-IP) in 0 ms


However if I hit Google's lookup servers with the same command from the 
same client machine, I get the expected response...


dig +trace @8.8.8.8 www.amiga.com

; <<>> DiG 9.6.2-P2 <<>> +trace @8.8.8.8 www.amiga.com
; (1 server found)
;; global options: +cmd
.                       8647    IN      NS      b.root-servers.net.
.                       8647    IN      NS      g.root-servers.net.
.                       8647    IN      NS      c.root-servers.net.
.                       8647    IN      NS      i.root-servers.net.
.                       8647    IN      NS      j.root-servers.net.
.                       8647    IN      NS      h.root-servers.net.
.                       8647    IN      NS      e.root-servers.net.
.                       8647    IN      NS      m.root-servers.net.
.                       8647    IN      NS      f.root-servers.net.
.                       8647    IN      NS      a.root-servers.net.
.                       8647    IN      NS      l.root-servers.net.
.                       8647    IN      NS      k.root-servers.net.
.                       8647    IN      NS      d.root-servers.net.
;; Received 228 bytes from 8.8.8.8#53(8.8.8.8) in 12 ms

com.                    172800  IN      NS      h.gtld-servers.net.
com.                    172800  IN      NS      a.gtld-servers.net.
com.                    172800  IN      NS      j.gtld-servers.net.
com.                    172800  IN      NS      e.gtld-servers.net.
com.                    172800  IN      NS      g.gtld-servers.net.
com.                    172800  IN      NS      d.gtld-servers.net.
com.                    172800  IN      NS      b.gtld-servers.net.
com.                    172800  IN      NS      m.gtld-servers.net.
com.                    172800  IN      NS      i.gtld-servers.net.
com.                    172800  IN      NS      f.gtld-servers.net.
com.                    172800  IN      NS      c.gtld-servers.net.
com.                    172800  IN      NS      l.gtld-servers.net.
com.                    172800  IN      NS      k.gtld-servers.net.
;; Received 503 bytes from 192.203.230.10#53(e.root-servers.net) in 92 ms

amiga.com.              172800  IN      NS      ns15.domaincontrol.com.
amiga.com.              172800  IN      NS      ns16.domaincontrol.com.
;; Received 115 bytes from 192.12.94.30#53(e.gtld-servers.net) in 126 ms

www.amiga.com.          3600    IN      CNAME   amiga.com.
amiga.com.              600     IN      A       68.115.249.34
amiga.com.              3600    IN      NS      ns16.domaincontrol.com.
amiga.com.              3600    IN      NS      ns15.domaincontrol.com.
;; Received 113 bytes from 208.109.255.8#53(ns16.domaincontrol.com) in 24 
ms


drill -T www.amiga.com seems to do the job these days. I guess I am just 
mostly curious what about Unbound keeps good ol' dig +trace from working?


TIA


FONG


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