ftp.perl.org strangeness

[Mark Andrews]

> On Tue, Mar 16, 2004 at 04:59:28PM +0100, Nora Etukudo wrote:
> > Asking for MX and TXT works:
> > 
> > # host -t TXT ftp.perl.org
> > ftp.perl.org is an alias for ftp.cpan.ddns.develooper.com.
> > ftp.cpan.ddns.develooper.com text "serviced by cpan.noris.de."
> > 
> > # host -t MX ftp.perl.org
> > ftp.perl.org is an alias for ftp.cpan.ddns.develooper.com.
> > ftp.cpan.ddns.develooper.com mail is handled by 10 miette.develooper.com.
> > ftp.cpan.ddns.develooper.com mail is handled by 11 relaybackup.netcetera.dk
> .
> 
> You're right - I'd tried AAAA, SOA, NS and HINFO.
> 
> 	David.
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	They have other nameserver quirkiness.  The following is also
	wrong.  This answer should have the CNAME record in the answer
	section.

	The servers for perl.org silently ignore the EDNS part of EDNS
	queries treating them as plain DNS queries.

	Also the load balancer doesn't understand EDNS resulting in
	double queries to the load balancer.  One EDNS and one non-EDNS.

	Mark

; <<>> DiG 8.3 <<>> soa ftp.perl.org @ns.develooper.com 
; (1 server found)
;; res options: init recurs defnam dnsrch no-tld-query edns0
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22753
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;	ftp.perl.org, type = SOA, class = IN

;; AUTHORITY SECTION:
perl.org.		30M IN SOA	ns.develooper.com. domains.develooper.com. (
					2004031606	; serial
					1h30m		; refresh
					1h30m		; retry
					1W		; expiry
					15M )		; minimum


;; Total query time: 353 msec
;; FROM: drugs.dv.isc.org to SERVER: 63.251.223.177
;; WHEN: Wed Mar 17 07:45:15 2004
;; MSG SIZE  sent: 41  rcvd: 113

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