kresd/issues - moin.dnsq.info

1. kresd/issues

https://gitlab.labs.nic.cz/knot/resolver/issues

Knot resolverでのglueの扱いに問題があることが分かって、手元では修正したのだが、それを開発側にどう伝えるのがいいかという難問がある。-- ToshinoriMaeno 2016-04-17 09:24:48

glueとAレコードの区別をしていない。

a.dns.jp A はcacheからの返答が返る。 nsa.dns.jp の A も同様だ。

==> zone cut 付属のAレコードは別扱いするようパッチ

2. 100.jp

jpからのadditionalを使っているようにみえる。(out-of-bailiwickではないのか）

[plan] plan '100.jp.' type 'A'
[resl]   => querying: '192.50.43.53' score: 10 zone cut: 'jp.' m12n: '100.jp.' type: 'A'
[resl]      optional: '210.138.175.244' score: 10 zone cut: 'jp.' m12n: '100.jp.' type: 'A'
[resl]      optional: '156.154.100.5' score: 10 zone cut: 'jp.' m12n: '100.jp.' type: 'A'
[resl]      optional: '202.12.30.131' score: 10 zone cut: 'jp.' m12n: '100.jp.' type: 'A'
[iter]   <= referral response, follow
[resl]   <= server: '192.50.43.53' rtt: 16 ms
[resl]   => querying: '210.224.172.13' score: 10 zone cut: '100.jp.' m12n: '100.Jp.' type: 'A'
[iter]   <= rcode: NOERROR
[resl]   <= server: '210.224.172.13' rtt: 13 ms
[resl] finished: 4, queries: 1, mempool: 32800 B

だが、この状態で、ns1.dns.ne.jp A を問い合わせると、

[plan] plan 'ns1.dns.ne.jp.' type 'A'
[resl]   => querying: '210.138.175.244' score: 10 zone cut: 'jp.' m12n: 'nE.Jp.' type: 'NS'
[resl]      optional: '156.154.100.5' score: 10 zone cut: 'jp.' m12n: 'nE.Jp.' type: 'NS'
[resl]      optional: '202.12.30.131' score: 10 zone cut: 'jp.' m12n: 'nE.Jp.' type: 'NS'
[resl]      optional: '203.119.1.1' score: 10 zone cut: 'jp.' m12n: 'nE.Jp.' type: 'NS'
[iter]   <= rcode: NOERROR
[iter]   <= found cut, retrying with non-minimized name
[ pc ]   => answer cached for TTL=900
[resl]   <= server: '210.138.175.244' rtt: 6 ms
[resl]   => querying: '203.119.40.1' score: 11 zone cut: 'jp.' m12n: 'NS1.Dns.nE.Jp.' type: 'A'
[resl]      optional: '156.154.100.5' score: 11 zone cut: 'jp.' m12n: 'NS1.Dns.nE.Jp.' type: 'A'
[resl]      optional: '202.12.30.131' score: 11 zone cut: 'jp.' m12n: 'NS1.Dns.nE.Jp.' type: 'A'
[resl]      optional: '203.119.1.1' score: 11 zone cut: 'jp.' m12n: 'NS1.Dns.nE.Jp.' type: 'A'
[iter]   <= referral response, follow
[resl]   <= server: '203.119.40.1' rtt: 6 ms
[resl]   => querying: '210.224.172.13' score: 13 zone cut: 'dns.ne.jp.' m12n: 'ns1.dNs.ne.Jp.' type: 'A'
[resl]      optional: '210.188.224.9' score: 13 zone cut: 'dns.ne.jp.' m12n: 'ns1.dNs.ne.Jp.' type: 'A'
[iter]   <= rcode: NOERROR
[resl]   <= server: '210.224.172.13' rtt: 13 ms
[resl] finished: 4, queries: 1, mempool: 32800 B

ここのglueはAとしては扱われていない。なぜだ。ｗ

-- ToshinoriMaeno 2016-04-15 15:08:51　