Re: [DNSOP] DNSOP Call for Adoption - draft-west-let-localhost-be-localhost

Tony Finch <dot@dotat.at> Tue, 12 September 2017 15:54 UTC

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Date: Tue, 12 Sep 2017 16:54:25 +0100
From: Tony Finch <dot@dotat.at>
To: Paul Vixie <paul@redbarn.org>
cc: dnsop@ietf.org, John Levine <johnl@taugh.com>, Wes Hardaker <wjhns1@hardakers.net>
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Subject: Re: [DNSOP] DNSOP Call for Adoption - draft-west-let-localhost-be-localhost
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Paul Vixie <paul@redbarn.org> wrote:
>
> while i've generally included a localhost.$ORIGIN A RR in zones that appear in
> my stub resolver search lists, in order that "localhost" be found,

I agree with the rest of your message but I want to highlight this bit
because it is directly related to the main reason this draft exists.

Your localhost records (like the ones I deleted from cam.ac.uk last week)
are troublesome for the web browser same origin security policy: they can
lead to vulnerabilites when your websites are accessed from multi-user
machines and in other more obscure circumstances - for details, see
http://seclists.org/bugtraq/2008/Jan/270

Tony.
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