<div dir="ltr">Hi guys,<div><br></div><div>thanks John et Gopal.<br><br>As a technician, it would be necessary to establish a clear definition of "variant" of a domain name otherwise we will not be able to move forward.<br>So, I need more details.<br>For example : myname.tld<br>variants are only on <b>myname </b>or on both <b>myname </b>and the <b>TLD </b>?<br>For me, variants must concern only the first side : myname.<br><br>Have a great day !<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le mar. 21 nov. 2023 à 08:42, gopal via UA-Tech <<a href="mailto:ua-tech@icann.org">ua-tech@icann.org</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg8803339308471958672">
<div dir="ltr">
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Thank you John Levine for the nice examples.</span></div>
<div><br>
</div>
DNS does strict identifier mapping.
<div><br>
</div>
<div>Humans using languages and scripts do fuzzy mappings </div>
<div><br>
</div>
<div>Can we reconcile them ?</div>
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Variant is a nice method adopted by ICANN.</div>
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<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">There is today no fully accepted definition for what may constitute a variant relationship
between top-level labels, and the results of the case studies suggest that it would be very difficult to come to a single definition at the current time, because there is more than one phenomenon being discussed.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">For a given language or script, a codepoint may be valid in one TLD and invalid in another.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">We need rules to conclude and halt. That is seldom easy.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">The Simple LDH rule reads: A label that conforms to the hostname format that can consist
of ASCII letters, digits, or hyphens. A hyphen must not occupy the first or last position of the label.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">IDNs need LGRs to reckon with and compatible with the functioning of the DNS.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">IMHO, there is a need to include the systemic support to ensure safe, reliable and resilient
operations.</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Your thoughts..</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Sincerely,</span></div>
<div><span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span></div>
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</span></div>
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<div style="margin:0px;background-color:rgb(254,254,254)"></div>
<div style="margin:0px;background-color:rgb(254,254,254)">
<div style="text-align:left;margin:0px"><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-size:16px;color:rgb(4,123,193)"><b><u>
<button label="" style="line-height:1;margin:0px;border-radius:3px;background:url("") 50% 50%/1.5rem no-repeat transparent;height:1.5rem;width:1.5rem">
<div style="text-align:left;margin-right:0px;margin-left:0px">
</div>
</button></u></b></span></div>
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<div style="margin:0px;background-color:rgb(254,254,254)">
<p style="text-align:left;line-height:1.2;margin:0px 0px 1.5rem;font-size:0px">
<span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)">A
</span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/label-en" id="m_5560252641456298894OWAe69ac5f2-b4af-b92a-b3ed-28f53882ca74" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">label</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)"> that
conforms to the </span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/hostname-en" id="m_5560252641456298894OWA1362b247-8fdc-2e0f-2ebe-f07121f42c83" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">hostname</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)"> format
defined in </span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(3,106,166)"><b><a href="https://www.icann.org/en/icann-acronyms-and-terms/request-for-comments-en" id="m_5560252641456298894OWA23537cc9-a236-5d2c-c159-77738044047e" style="text-decoration:none;margin-top:0px;margin-bottom:0px;color:rgb(3,106,166)" target="_blank">Request
for Comments</a></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)"> (</span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/request-for-comments-en" id="m_5560252641456298894OWA062aab93-9aa1-31cc-62c8-4e326f2d98fc" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">RFC</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)">)
952, as modified by </span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/request-for-comments-en" id="m_5560252641456298894OWAe39ca6b6-cb1c-d975-bf6a-2a38ae460b0c" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">RFC</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)"> 1123.
</span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/ldh-label-en" id="m_5560252641456298894OWAc1f75ba1-f249-4aab-23de-7512af95c558" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">LDH
label</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)">s can consist of
</span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;color:rgb(4,123,193)"><b><u><a href="https://www.icann.org/en/icann-acronyms-and-terms/ascii-en" id="m_5560252641456298894OWA556cfb59-a252-059d-d978-e875772c1dc6" style="margin-top:0px;margin-bottom:0px;color:rgb(4,123,193)" target="_blank">ASCII</a></u></b></span><span style="letter-spacing:normal;font-family:"Noto Sans",sans-serif;font-weight:400;color:rgb(51,51,51)"> letters,
digits, or hyphens. A hyphen must not occupy the first or last position of the </span>
<span style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Gopal T V</span></p>
<p style="text-align:left;line-height:1.2;margin:0px 0px 1.5rem;font-size:0px">
<span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">0 9840121302</span></p>
<p style="text-align:left;line-height:1.2;margin:0px 0px 1.5rem;font-size:0px">
<span style="font-size:14.6667px;color:rgb(0,0,0);background-color:rgb(255,255,255)"><a href="https://vidwan.inflibnet.ac.in/profile/57545" rel="noopener noreferrer" style="margin:0px;text-align:left;background-color:rgb(255,255,255)" target="_blank">https://vidwan.inflibnet.ac.in/profile/57545</a></span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(0,0,0);background-color:rgb(255,255,255)"><a href="https://www.facebook.com/gopal.tadepalli" rel="noopener noreferrer" style="margin:0px;text-align:left;background-color:rgb(255,255,255)" target="_blank">https://www.facebook.com/gopal.tadepalli</a></span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Dr. T V Gopal</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Professor</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Department
of Computer Science and Engineering</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">College of
Engineering</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Anna University</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Chennai -
600 025, INDIA</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">Ph : (Off)
22351723 Extn. 3340</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)"> (Res)
24454753</span><span style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</span><span style="font-size:14.6667px;color:rgb(32,31,30);background-color:rgb(255,255,255)">++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</span></p>
</div>
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<div id="m_5560252641456298894divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> UA-Tech <<a href="mailto:ua-tech-bounces@icann.org" target="_blank">ua-tech-bounces@icann.org</a>> on behalf of John Levine via UA-Tech <<a href="mailto:ua-tech@icann.org" target="_blank">ua-tech@icann.org</a>><br>
<b>Sent:</b> 21 November 2023 06:52<br>
<b>To:</b> <a href="mailto:ua-tech@icann.org" target="_blank">ua-tech@icann.org</a> <<a href="mailto:ua-tech@icann.org" target="_blank">ua-tech@icann.org</a>><br>
<b>Subject:</b> Re: [UA-Tech] BIUWG action item for Tech and Measurement WGs</font>
<div> </div>
</div>
<div><font size="2"><span style="font-size:11pt">
<div>It appears that Seda Akbulut via UA-Tech <<a href="mailto:seda.akbulut@icann.org" target="_blank">seda.akbulut@icann.org</a>> said:<br>
>Background information about the BIUWG and UASG meeting:<br>
>BIUWG raised that IDN variant TLDs may have an impact on UA and asked if UASG is considering it?<br>
<br>
Experience tells us that the answer is no.<br>
<br>
> 1. Is there any points in the DNS ecosystem that needs variant domain names to be ‘merged’? ...<br>
<br>
>From a technical point of view, there is no such thing as variants.<br>
They're just different domain names. At a semantic level, people want<br>
variants to be treated the same, but nobody has ever been able to<br>
explain what "the same" means here.<br>
<br>
It is not very hard to have a DNS provisioning system make two names<br>
equivalent, and to install matching contents in the zones. I've done<br>
it for my users who have multiple names that they want to act<br>
similarly. That's not a problem that needs to be solved.<br>
<br>
It would also not be very hard to set up web and mail configurations<br>
to tell the server that domains B, C, and D are the same as A. Web<br>
requests for URLs in B, C, and D would do the same thing as requests<br>
for URLs in A, or so mail to xxx@B, xxx@C, xxx@D go to the same place<br>
as xxx@A. But you know what? Nobody has ever done it because NOBODY<br>
CARES. The market has spoken and told us that there is no demand for<br>
variant names.<br>
<br>
The closest we've had to 2LD variants was .NGO and .ONG which were<br>
until recently sold as a bundle, and everyone who had one also had the<br>
other. I went through the zone files one time to see how many of them<br>
had configured their web and mail servers to respond consistently to<br>
both. One provider did, everyone else did one or the other but not<br>
both. The .CAT registry used to provision accented and unaccented<br>
versions of names with a DNAME, so that <a href="http://www.ABC.cat" target="_blank">www.ABC.cat</a> and
<a href="http://www.abc.cat" target="_blank">www.abc.cat</a><br>
pointed to the same place, where ABC and abc are accented and<br>
unaccented versions of the name. Again I looked to see how many people<br>
made their web servers respond consistently, and found that nobody<br>
did.<br>
<br>
I would suggest we direct our efforts elsewhere, to topics that people<br>
do care about.<br>
<br>
R's,<br>
John<br>
<br>
<br>
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