Date: Tue, 23 Mar 2004 08:14:31 +1100 From: Mark Andrews <Mark_Andrews@isc.org> To: =?ISO-8859-1?Q?Ask_Bj=F8rn_Hansen?= <ask@develooper.com> Cc: Rick Knospler <rick@skylands.net> Subject: Re: ftp.perl.org strangeness Message-ID: <200403222114.i2MLEVqW025290@drugs.dv.isc.org> In-Reply-To: Your message of "Mon, 22 Mar 2004 05:23:15 -0800." <136DFD30-7C04-11D8-8383-000A95796C18@develooper.com>
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> > On Mar 15, 2004, at 11:55 PM, Dave Hart wrote: > > (Dave, I'm not subscribed to freebsd-stable currently - if the list > isn't open for non-subscribers and you find it appropriate can you > forward this mail there?) > > > I've run across this issue with a few websites in the last 18 months. > > It might help to ask if they're using a "load balancer" on > > ddns5.develooper.com (the nameserver for ddns.develooper.com which is > > the zone containing ftp.cpan.ddns.develooper.com which is CNAMEd from > > ftp.perl.org). > > Yes indeed, it is using a "load balancer"[1]. The old code was a > several years old quick hack on ancient ancient code. I re-implemented > it this sunday and got rid of the AAAA -> nxdomain bug. > > There's still a nameserver running with the old code. If the new code > doesn't exhibit any problems in the next day or two I'll upgrade the > last old one too. > > The new code is running on ns2.geo.bitnames.com if you want to look the > responses over. > > dig ftp.cpan.ddns.develooper.com @ns2.geo.bitnames.com > dig -t aaaa ftp.cpan.ddns.develooper.com @ns2.geo.bitnames.com > > (thanks to Dave Hart, Mark Andrews and Vivek Khera for making me aware > of this thread). I suggest that you look at RFC 2308. You are returning a self referral to the AAAA query. ns2.geo.bitnames.com will be marked as lame. Most authoritative servers return a TYPE 2 response. > - ask > > [1] it returns a mirror in your country if available. > > -- > http://www.askbjoernhansen.com/ > -- 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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