BIND-9.7.0 noanswer_response sideways referral

[Lou Picciano]

Bind Users: 


Wonder if anyone has seen this, and can offer an insight? We've recently installed BIND-9.7.0 onto a server who's configuration under BIND-9.3.6-p1 had been working AOK. It is a pretty simple 'Split View' server - problem is that a DIG request on the 'INTERNAL' view - which does have recursion available - receives no response, while the log transcript indicates something weird is going on. 


Apparently, our server forwards out the request, receives an apparently(?) correct response, then, in rapid succession: 
noanswer_response 
invalid response 
noanswer_response 
sideways referral 


Must admit, we've never had to pore over BIND logs this much, so don't know what our next step might be. Any ideas? 


Many thanks, Lou 






A (profoundly) redacted snip of our log follows below: 




22-Apr-2010 12:06:42.058 general: info: flushing caches in all views succeeded 
... 
22-Apr-2010 12:06:52.058 client: debug 3: client 192.168.42.10#61339: UDP request 
22-Apr-2010 12:06:52.058 client: debug 5: client 192.168.42.10#61339: view INTERNAL: using view 'INTERNAL' 
22-Apr-2010 12:06:52.058 security: debug 3: client 192.168.42.10#61339: view INTERNAL: request is not signed 
22-Apr-2010 12:06:52.058 security: debug 3: client 192.168.42.10#61339: view INTERNAL: recursion available 
... 
22-Apr-2010 12:06:52.083 resolver: debug 10: received packet: 
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60591 
;; flags: qr ra ; QUESTION: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1 
;; OPT PSEUDOSECTION: 
; EDNS: version: 0, flags: do; udp: 4000 
;; QUESTION SECTION: 
;ibm.com. IN A 


;; ANSWER SECTION: 
ibm.com. 21578 IN A 129.42.17.103 
ibm.com. 21578 IN A 129.42.18.103 
ibm.com. 21578 IN A 129.42.16.103 




22-Apr-2010 12:06:52.083 resolver: debug 3: fctx 88ee290(ibm.com/A'): noanswer_response 
22-Apr-2010 12:06:52.083 resolver: notice: DNS format error from 192.33.4.12#53 resolving ibm.com/A for client 192.168.42.10#61339: invalid response 
22-Apr-2010 12:06:52.083 resolver: debug 3: fctx 88ee290(ibm.com/A'): cancelquery 
22-Apr-2010 12:06:52.083 resolver: debug 3: fctx 88ee290(ibm.com/A'): add_bad 
22-Apr-2010 12:06:52.083 lame-servers: info: error ( FORMERR ) resolving 'ibm.com/A/IN': 192.33.4.12#53 
... 
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12144 
;; flags: qr ra ; QUESTION: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 13 
;; QUESTION SECTION: 
;. IN NS 


;; ANSWER SECTION: 
. 72889 IN NS e.root-servers.net. 
. 72889 IN NS f.root-servers.net. 
...ALL THE ROOT SERVERS 




22-Apr-2010 12:06:52.120 resolver: debug 3: fctx 8eeb0e8(./NS'): noanswer_response 
22-Apr-2010 12:06:52.120 resolver: notice: DNS format error from 192.228.79.201#53 resolving ./NS: sideways referral 
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