<div><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 2, 2023 at 10:06 AM Dave Knight <<a href="mailto:dave@knig.ht">dave@knig.ht</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="line-break:after-white-space"><br><div><br><blockquote type="cite"><div>On Jun 2, 2023, at 12:33 PM, Manu Bretelle <<a href="mailto:chantr4@gmail.com" target="_blank">chantr4@gmail.com</a>> wrote:</div><br><div><div><br></div><div dir="auto">Thanks Robert,</div><div dir="auto"><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Tue, May 30, 2023 at 9:35 AM Robert Story <<a href="mailto:rstory@ant.isi.edu" target="_blank">rstory@ant.isi.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><br>
USC/ISI is renumbering both its IPv4 and IPv6 addresses for<br>
<a href="http://b.root-servers.net/" rel="noreferrer" target="_blank">b.root-servers.net</a> on 2023-11-27. Our new IPv4 address will be<br>
170.247.170.2 and our new IPv6 address will be 2801:1b8:10::b.</blockquote><div dir="auto"><br></div><div dir="auto">It seems those are live and ready to use, but I did not see in the announcement that people could start updating their root zone before 2023-11-27 and be sure to receive the same service level than with the old addresses.</div><div dir="auto"><br></div><div dir="auto">Could you clarify that those are indeed good to go and there is no need to wait for the renumbering date to update root.hints?</div><div dir="auto">Would it be worth clarifying this on the LACNIC announcement?</div></div></div></div></blockquote></div><br><div>Aiui BIND9 uses the root.hints just once on receipt of the first query when starting with an empty cache, whereupon it will use the hints to find a root server to do a priming query, replacing the hints with the result of that. Given the infrequency of root nameserver renumbering events and the long period of dual operation they usually observe it's probably reasonable to allow root hints to be updated in the natural cadence of package updates. </div></div></blockquote><div dir="auto"><br></div><div dir="auto"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="line-break:after-white-space"><div dir="auto">For BIND9 and Unbound, the binary already has the root hints baked in, so maintaining hints in a static file which may not get updated with the package may be doing slightly more harm than good. All that to say, operators who are keeping their nameserver software up to date probably don't need to rush to update root hints and may do better to remove the static file entirely.</div></div></blockquote><div dir="auto"><br></div><div dir="auto">Totally agree with your here, but reality is that there is still a ton of use cases that software may be using a static file to get started with and the value to handle root.hints update properly is not worth the investment. </div><div dir="auto"><br></div><div dir="auto">Manu</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="line-break:after-white-space"><div dir="auto"></div></div><div style="line-break:after-white-space"><div><br></div><div>dave</div></div></blockquote></div></div>