<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 26, 2018 at 3:42 PM, Simon Kelley <span dir="ltr"><<a href="mailto:simon@thekelleys.org.uk" target="_blank">simon@thekelleys.org.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class="gmail-">On 25/01/18 15:03, Mattias Hellström wrote:<br>
> Hi,<br>
> I have made a patch to disable the A-for-A feature. <br>
> I believe that the text portions can be made better by an actual DNS expert.<br>
><br></span><br>
There are no downsides to doing A-for-A, as far as I know. If this<br>
feature is still doing some good, it should be left. If it's obsolete,<br>
it should be entirely removed, that way we gain a small codesize and<br>
support reduction, instead of increasing both.<br></blockquote><div> <br></div></div></div><div class="gmail_extra">In that case, removing it completely is the best choice in my opinion.<div>The source of these requests was patched out man many years ago. </div><div>And any new sources probably want a proper NXDOMAIN in return.</div></div></div>