cname chain limit
Torsten
toto at the-damian.de
Fri Jul 9 11:01:26 UTC 2010
Am Fri, 9 Jul 2010 15:08:20 +0530
schrieb rams <bramesh80 at gmail.com>:
> Hi ,
>
> What is the cname chains limit ?
>
> Thanks & Regards,
> Ramesh
I've managed to get 17 cnames into a chain returned by dig. named-checkzone wouldn't mind additional cnames though. In my example zone I've put 100 cnames into a chain without any complains.
[toto at daddelkiste conf]# dig @127.0.0.1 cname-1.test a
; <<>> DiG 9.6.2-P2-RedHat-9.6.2-5.P2.fc12 <<>> @127.0.0.1 cname-1.test a
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59028
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 17, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;cname-1.test. IN A
;; ANSWER SECTION:
cname-1.test. 43200 IN CNAME cname-2.test.
cname-2.test. 43200 IN CNAME cname-3.test.
cname-3.test. 43200 IN CNAME cname-4.test.
cname-4.test. 43200 IN CNAME cname-5.test.
cname-5.test. 43200 IN CNAME cname-6.test.
cname-6.test. 43200 IN CNAME cname-7.test.
cname-7.test. 43200 IN CNAME cname-8.test.
cname-8.test. 43200 IN CNAME cname-9.test.
cname-9.test. 43200 IN CNAME cname-10.test.
cname-10.test. 43200 IN CNAME cname-11.test.
cname-11.test. 43200 IN CNAME cname-12.test.
cname-12.test. 43200 IN CNAME cname-13.test.
cname-13.test. 43200 IN CNAME cname-14.test.
cname-14.test. 43200 IN CNAME cname-15.test.
cname-15.test. 43200 IN CNAME cname-16.test.
cname-16.test. 43200 IN CNAME cname-17.test.
cname-17.test. 43200 IN CNAME cname-18.test.
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri Jul 9 12:55:50 2010
;; MSG SIZE rcvd: 413
Ciao
Torsten
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