Date: Mon, 16 Jul 2001 21:58:38 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: Matt Dillon <dillon@earth.backplane.com> Cc: Len Conrad <LConrad@Go2France.com>, <freebsd-hackers@FreeBSD.ORG> Subject: Re: Weird named problem - IN A for nameservers being lost! Message-ID: <20010716215231.T417-100000@achilles.silby.com> In-Reply-To: <200107170221.f6H2Lcj36277@earth.backplane.com>
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On Mon, 16 Jul 2001, Matt Dillon wrote: > Interesting. He describes in the section about 'expiring glue' > creating loops in the DNS server, but doesn't mention a particular > bug. > > However, there's another section where he mentions something about > bind reducing the TTL by 5% for certain credibility cases. > > Going back to my original posting... the NS is 2016 and fuji > is 1846 = 170 = 5%. > > I think This credibility stuff reducing the TTL in named is > responsible for these blowups. I am going to email the bind group > with this whole mess to see what they have to say. > > -Matt I wish you luck in getting it fixed. That 5% may have been intended for removal; 8.1.2 used to reduce the TTL by 5% for _each_ query. That was clearly removed for 8.2, but perhaps the initial decrement was forgotten. However, the problem probably indicates a more serious problem in 8.x's resolver, which may be fixed in 9 and is not intended to be backported. I guess Mark'll have to answer that. (He seems to read and reply to -security, so he appears reachable.) Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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