[dns-operations] Monday rant againt the uses of the Public Suffix List
jabley at hopcount.ca
Tue Jan 22 03:08:50 UTC 2013
On 2013-01-22, at 11:14, Vernon Schryver <vjs at rhyolite.com> wrote:
>>>> Continuing the sarcasm is too much effort, so I'll simply ask why not
>>>> do DNS MX and A requests? (both because of the fall-back-to-A-if-no-MX
>>> Please sir, if I run www.images.example.co.uk, can I set a cookie
>>> at images.example.co.uk? How about example.co.uk? Fine Now .co.uk?
> It might also be worth noting that co.uk as well as com, org and
> the few other TLDs that I tried just now lack A, AAAA, and MX RRs,
> so a browser could use a DNS test to reject some supercookies.
I'm not sure it'd be a very good general test, though. For example,
[krill:~]% dig dk. A +short
[krill:~]% dig co.za MX +short
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