bind 9.4.1 query for localhost

[Jeff Stevens]

When doing localhost queries (with "empty-zones-enable no"), should we get a
response for "localhost" or not?  I wasn't sure if it was a built-in name.  I do
have a reverse zone setup as follows and did all queries on the same box so as
to be local.

The A query for localhost gives NXDOMAIN although the reverse query for
127.0.0.1 returns "localhost" for the answer.


; <<>> DiG 9.4.1.i5/OS.V5R5M0 <<>> -x 127.0.0.1 @9.5.176.194 @9.5.176.200 @9.
10.244.200
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 423
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;1.0.0.127.in-addr.arpa.                IN      PTR

;; ANSWER SECTION:
1.0.0.127.in-addr.arpa. 86400   IN      PTR     localhost.

;; AUTHORITY SECTION:
0.0.127.in-addr.arpa.   86400   IN      NS      ISA2LP05.RCHLAND.IBM.COM.

;; Query time: 304 msec
;; SERVER: 9.5.176.194#53(9.5.176.194)
;; WHEN: Wed May 30 07:22:17 2007
;; MSG SIZE  rcvd: 101



; <<>> DiG 9.4.1.i5/OS.V5R5M0 <<>> -q localhost @9.5.176.194 @9.5.176.200 @9.
10.244.200
; (1 server found)    ;; global options:  printcmd

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 904
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0


;; QUESTION SECTION:
;localhost.                     IN      A

;; AUTHORITY SECTION:
.                       4556    IN      SOA     a.root-servers.net. nstld.ver
isign-grs.com. 2007052901 1800 900 604800 86400

;; Query time: 249 msec
;; SERVER: 9.5.176.194#53(9.5.176.194)
;; WHEN: Wed May 30 07:23:09 2007
;; MSG SIZE  rcvd: 102




zone "0.0.127.in-addr.arpa" {
     type master;
     file "0.0.127.in-addr.arpa.db";
     check-names ignore;
     database rbt;
     dialup no;
     zone-statistics no;
     max-transfer-idle-out 60;
     max-transfer-time-out 120;
     notify yes;
     zero-no-soa-ttl yes;
     allow-query {
          localnets;
     };
     allow-update {
          localnets;
     };
     check-integrity yes;
     check-mx warn;
     check-wildcard yes;
};

-- 
Jeffrey Stevens
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