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Date:      Wed, 25 Jun 2014 17:31:24 +0700
From:      Victor Sudakov <vas@mpeks.tomsk.su>
To:        Polytropon <freebsd@edvax.de>
Cc:        Outback Dingo <outbackdingo@gmail.com>, freebsd-questions@freebsd.org, Bernt Hansson <bah@bananmonarki.se>
Subject:   Re: server funding
Message-ID:  <20140625103124.GA66527@admin.sibptus.tomsk.ru>
In-Reply-To: <20140625121617.a72bc88c.freebsd@edvax.de>
References:  <53A994C7.7080308@tysdomain.com> <20140625073142.GA60979@admin.sibptus.tomsk.ru> <53AA85F3.9080305@bananmonarki.se> <20140625084357.GB62939@admin.sibptus.tomsk.ru> <CAKYr3zwSf4hqmMYzoCxo6MY88fxx9xXMcGWJ2h5o_31gVDPPGA@mail.gmail.com> <20140625092520.GA64543@admin.sibptus.tomsk.ru> <20140625114114.1345527e.freebsd@edvax.de> <20140625100231.GA65737@admin.sibptus.tomsk.ru> <20140625121617.a72bc88c.freebsd@edvax.de>

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Polytropon wrote:
> And now take into mind that Unicode characters can also be
> used, so http://??y.F????????bS??/ isn't far away. And think about
> all the funny attack vectors enabled by "similarly looking",
> but actually different URLs... ;-)

Usually there are some provisions and transformation rules approved by
ICANN to minimize this risk. I can speak for .ÒÆ only (AKA xn--p1ai),
there are no permitted characters other than a restricted set of
Cyrillic.  You cannot have some e.g.  Greek or even Latin character in
this Cyrillic-only domain name, i.e. you cannot replace U+043E
(cyrillic small letter "o") with an ascii "o".

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov@sibptus.tomsk.ru



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