[Unbound-users] unbound refuses to respons non-recursive queries

刘明星:) liumingxing at cnnic.cn
Thu May 19 04:02:03 UTC 2011

send a non-recursive query to an unbound recursor and get a response with rcode REFUSED while whithout RA set. 
lthis is the following
      dig +norecurse tianya.cn @unbound.recurse.ns

   ; <<>> DiG 9.7.2-P2 <<>> +norecurse tianya.cn
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 47807
;; flags: qr; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; Query time: 0 msec
;; WHEN: Thu May 19 11:39:58 2011
;; MSG SIZE  rcvd: 12
I want to know why unbound does refuse to resonse and why it does not set ra bit.


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