adding DS record via nsupdate

[Mark Andrews]

The update code has sanity checks.  You can only add DS records
where delegating NS records exist.  If you remove a delegating NS
rrset any DS records there will also be removed.  This check is
done after all the records have been processed.

Mark

> server 127.0.0.1
> zone example 
> key key.dv.isc.org xxxxxxxxxxxxyyyyyyyyyyyy        
> update add oooooo.example 0 ns drugs.dv.isc.org 
> update add oooooo.example 0 DS 10288 5 1 22F103696F795206A7373850444C6F4DA61D0076
> send
> 

; <<>> DiG 9.10.0pre-alpha <<>> isc.org oooooo.example ds +norec
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60240
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;oooooo.example.			IN	DS

;; ANSWER SECTION:
oooooo.example.		0	IN	DS	10288 5 1 22F103696F795206A7373850444C6F4DA61D0076

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Feb 06 14:57:45 EST 2013
;; MSG SIZE  rcvd: 163

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org