"If you're a Linux user on IPv6 Day, I've got some good news and
some bad news for you.
"The goods news is that Linux is as ready (if not more) than any
other operating system platform. The bad news is that even though
your operating system is IPv6 capable, a number of major Linux
websites are not.
"For example, www.redhat.com is not accessible via IPv6 today
(as far as I can tell or Red Hat will tell me). You can only reach
Red Hat on IPv6 at ipv6.redhat.com
"Yes that is a big deal that www.redhat.com is not part of IPv6
day and a failure for Red Hat, in my opinion. Simply having
ipv6.domain.com isn't enough. That's the whole point of IPv6 and
why Google (that also has ipv6.google.com) has switched IPv6 on for
their main domain today."