Re: ftp.perl.org strangeness

From: Mark Andrews (Mark_Andrews_at_isc.org)
Date: 03/16/04

  • Next message: Dave Hart: "RE: ftp.perl.org strangeness" 
    To: David Malone <dwmalone@maths.tcd.ie>
Date: Wed, 17 Mar 2004 07:56:46 +1100

    > 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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    > http://lists.freebsd.org/mailman/listinfo/freebsd-stable
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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@isc.org
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