<!DOCTYPE html><html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<font face="Calibri">Just an FYI, but nginx and freenginx are
**completely independent products**. If you are looking for
support/questions with regards to the NGINX in ubuntu, you should
be reaching out to nginx.org mailing lists or support mechanisms
from Ubuntu.<br>
<br>
</font><br>
<div class="moz-cite-prefix">On 2026-07-29 11:40, Paul wrote:<br>
</div>
<blockquote type="cite" cite="mid:4f93f13a-a3ff-48ed-8192-dd4c91cc8123@stormy.ca">nginx/1.18.0
(Ubuntu). For decades we have never explicitly "listened" for
1pv6, using only "listen 443 ssl;" on a couple of dozen websites.
<br>
<br>
As of two days ago, W3C (world wide web consortium) html, css, etc
verification tools are no longer functional -- our websites "time
out" "500 Can't connect to mysite.com:443 (Connection timed out)"
<br>
<br>
W3C have nslookup showing ipv4 and ipv6 addresses. There is
nothing in our firewalls "denying" them, there is nothing in the
nginx logs.
<br>
<br>
I'm reticent to just add trillions of ipv6 possibilities of abuse
(we're experiencing om/off ddos attacks from ai/automated/bots to
the tune of 56^6/day).
<br>
<br>
Any thoughts?
<br>
<br>
Thanks -- Paul
<br>
<br>
</blockquote>
<br>
</body>
</html>