<p>
Hello Jan,</p>
<p>
<br>
</p>
<p>
We failed to resolve this name.<br>
Because our full resolvers are set buffer size 1220 byte and<br>
drop UDP fragment packet for protect from fragment attack.<br>
(see: draft-fujiwara-dnsop-fragment-attack-01)<br>
<br>
</p>
<p>
Now we resolve this name by tcp only.<br>
It is fine.</p>
<p>
<meta charset="utf-8">
<br style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
<span style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">
--<span>
</span>
</span>
<br style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
<span style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">
Manabu Sonoda <manabu-s@iij.ad.jp></span>
<br style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
<span style="color: rgb(51, 51, 51); font-family: メイリオ, ヒラギノ角ゴ, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">
Internet Initiative Japan Inc.</span>
<br>
</p>
<p>
<span>
</span>
On 2019/05/24 20:10<br>
Jan Včelák <jv@fcelda.cz> wrote:<br>
<br>
</p>
<blockquote>
<div dir="auto">
<div dir="auto">
Hello,</div>
<div dir="auto">
<br>
</div>
<div dir="auto">
I can confirm we do not respect the buffer size. We are aware of this deficiency but it also doesn't have high priority at the moment.</div>
<div dir="auto">
<br>
</div>
<div dir="auto">
Have you encountered a situation where it has been causing trouble for a real application? Or is this an accidental discovery?</div>
<div dir="auto">
<br>
</div>
<div dir="auto">
Jan (NS1)</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">
Dne pá 24. 5. 2019 12:19 uživatel Manabu Sonoda <<a href="mailto:manabu-s@iij.ad.jp">
manabu-s@iij.ad.jp</a>
> napsal:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Are NS1not implement edns0 buffer size ?<br>
Do they plan to implement it ?<br>
<br>
( Close eyes bad rdata....)<br>
<br>
dig @<a href="http://dns2.p07.nsone.net" rel="noreferrer noreferrer" target="_blank">
dns2.p07.nsone.net</a>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
txt +bufsize=512<br>
<br>
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> @<a href="http://dns2.p07.nsone.net" rel="noreferrer noreferrer" target="_blank">
dns2.p07.nsone.net</a>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
txt +bufsize=512<br>
; (1 server found)<br>
;; global options: +cmd<br>
;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11262<br>
;; flags: qr aa rd; QUERY: 1, ANSWER: 12, AUTHORITY: 0, ADDITIONAL: 1<br>
;; WARNING: recursion requested but not available<br>
<br>
;; OPT PSEUDOSECTION:<br>
; EDNS: version: 0, flags:; udp: 4096<br>
;; QUESTION SECTION:<br>
;<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. IN TXT<br>
<br>
;; ANSWER SECTION:<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "MS=ms71622826"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "aoLxrQBK4FSoQsQVxk8Oh0QqDIiILef/m6EwZTmpg1M="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "cH2cwv2lMzoxbrhQDsfB7LDv/Jsu2TDDZSQznoA/H1rtSih8CLKju0RZrRDahPyMLM4ZYA8sGijs561ll2AZPw=="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "eBPD7w6DE9vYNPwczqepRahUkUAkBw5qxW7qsAOd+ig="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "google-site-verification=gtfgX6oja-rl-TcVUtRidcodGC-4xwiVrFdhz2Njuo0"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "pardot_341121_*=1f62b656fc75f01e2dbf46962f3df567f9435270c2ac313c6587c4bbef258d0f"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "v=DKIM1\;k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC1vhugV30ayqwRy2mu+m6QyxvdVtHee/ChrUqtrPflazjf3LfuGryocUGTZ66DsHZeTpjqdcRRXms1+xpVsqqeiXipw4jNPwx9VpyIyg0suI/2QYsIjKyj0OFYWe22Ilgp/zjXXJUxJ4fTqT5ae0cAX5u3GNsj6dA8u9n3atIlIwIDAQAB"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "v=DKIM1\;k=rsa\;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCzTQa7JyCBCGKvGz3/6F2vf5dXWZKOD4y56gizEWfUITZ/OvV4VYxCUAAD6JicyyPg+SjweyBcRNBVb+oaZ4NiCvCu2Pci5UIOZZwZn45XRFTpLnj/bTJE5elcmXvf2LytUQlGcM4N9qjzGlb4qdohLghBvRaQ+YpXK+Nrg6UokQIDAQAB"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "v=DKIM1\;k=rsa\;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDL/t1pilYMRJcrBcyXuRdNmdpN1fnF0cC6eI34BAw7w8YW1cwH14MjbhtX6QrWhrpGFGDZOzEv3BSA8MXWNMxInJtppacMoSB2ZCRwWe4d0Hk0uklh5g5iydksSAwf+GK8YJEj9UPDJx6/y7zQytjWee9s4n2ABSGpDCMMdJkFBQIDAQAB"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "v=DMARC1\;p=reject\;rua=mailto:<a href="mailto:dmarc@globalsign.com" target="_blank" rel="noreferrer">
dmarc@globalsign.com</a>
"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "v=spf1 ip4:<a href="http://114.179.250.0/30" rel="noreferrer noreferrer" target="_blank">
114.179.250.0/30</a>
ip4:<a href="http://211.123.204.251/32" rel="noreferrer noreferrer" target="_blank">
211.123.204.251/32</a>
ip4:<a href="http://27.121.42.215/32" rel="noreferrer noreferrer" target="_blank">
27.121.42.215/32</a>
ip4:<a href="http://211.11.149.164/32" rel="noreferrer noreferrer" target="_blank">
211.11.149.164/32</a>
include:<a href="http://spf.protection.outlook.com" rel="noreferrer noreferrer" target="_blank">
spf.protection.outlook.com</a>
include:_<a href="http://spf.salesforce.com" rel="noreferrer noreferrer" target="_blank">
spf.salesforce.com</a>
include:<a href="http://spf-bma.mpme.jp" rel="noreferrer noreferrer" target="_blank">
spf-bma.mpme.jp</a>
include:_<a href="http://spf.act-on.net" rel="noreferrer noreferrer" target="_blank">
spf.act-on.net</a>
include:es._<a href="http://spf.adp.com" rel="noreferrer noreferrer" target="_blank">
spf.adp.com</a>
-all"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">
globalsign.com</a>
. 300 IN TXT "yandex-verification:e54a3279b05955ba"<br>
<br>
;; Query time: 3 msec<br>
;; SERVER: 198.51.45.7#53(198.51.45.7)<br>
;; WHEN: Fri May 24 18:48:31 2019<br>
;; MSG SIZE rcvd: 1551<br>
<br>
-- <br>
Manabu Sonoda <<a href="mailto:manabu-s@iij.ad.jp" target="_blank" rel="noreferrer">
manabu-s@iij.ad.jp</a>
><br>
Internet Initiative Japan Inc.<br>
<br>
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<br>
</blockquote>
</div>
<br>
</blockquote>
<p>
<br>
</p>