[dns-operations] Curious use of cname

[John Wobus]

 From everything I know, this is wrong and it's apparently making our
nameservers give inconsistent results.  What nameserver allows
this and what might they be attempting to accomplish?

John Wobus
Cornell University IT


dig +norecurs mx cjsarchitects.com @dns3.name-services.com.

; <<>> DiG 9.4.3-P3 <<>> +norecurs mx cjsarchitects.com @dns3.name- 
services.com.
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37294
;; flags: qr aa; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;cjsarchitects.com.		IN	MX

;; ANSWER SECTION:
cjsarchitects.com.	1800	IN	MX	20 mx2.emailsrvr.com.
cjsarchitects.com.	1800	IN	MX	10 mx1.emailsrvr.com.

;; Query time: 22 msec
;; SERVER: 98.124.193.1#53(98.124.193.1)
;; WHEN: Wed Aug  6 14:08:34 2014
;; MSG SIZE  rcvd: 85

dig +norecurs a cjsarchitects.com @dns3.name-services.com.

; <<>> DiG 9.4.3-P3 <<>> +norecurs a cjsarchitects.com @dns3.name- 
services.com.
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26019
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;cjsarchitects.com.		IN	A

;; ANSWER SECTION:
cjsarchitects.com.	1800	IN	CNAME	ext.squarespace.com.

;; Query time: 18 msec
;; SERVER: 98.124.193.1#53(98.124.193.1)
;; WHEN: Wed Aug  6 14:08:34 2014
;; MSG SIZE  rcvd: 65