在 2016年9月13日星期二 UTC+8上午8:07:31,Matt Palmer写道:
> On Mon, Sep 12, 2016 at 08:57:29PM +0100, Rob Stradling wrote:
> > On 12/09/16 18:57, Jakob Bohm wrote:
> > > On 11/09/2016 07:49, Peter Bowen wrote:
> > >> On Sat, Sep 10, 2016 at 10:40 PM, Han Yuwei <[email protected]> wrote:
> > >>> So when I delegated the DNS service to Cloudflare, Cloudflare have
> > >>> the privilege to issue the certificate by default? Can I understand
> > >>> like that?
> > >>
> > >> I would guess that they have a clause in their terms of service or
> > >> customer agreement that says they can update records in the DNS zone
> > >> and/or calls out that the subscriber consents to them getting a
> > >> certificate for any domain name hosted on CloudFlare DNS.
> > > 
> > > This seems another reason for the web to not trust cloudflare as a
> > > trustworthy domain proxy handler.
> > > 
> > > Just because their (paid, presumably) job gives them the technical
> > > ability to requests certificates without the consent of the domain
> > > owner, this does not given them any legitimate right to do so.
> > 
> > Hi Jakob.  Do you find any fault with Comodo for issuing this cert
> > (https://crt.sh/?id=31206531) ?
> > 
> > We validated domain control, but we did not attempt to establish "the
> > consent of the domain owner"(s) directly.  As others have pointed out,
> > this is compliant with the CABForum BRs.
> 
> Are you able, by any chance, to reveal whether the domain control was
> validated by HTTP request, DNS change, or "other" (please specify <grin>)? 
> At present, it looks like every domain listed in that certificate *other*
> than the domain at issue (bupt.moe) resolves to Cloudflare IP space, so my
> working theory is that the domain was previously pointed to a Cloudflare
> proxy, and has since been moved elsewhere.
> 
> However, it would be nice, for my peace of mind at least, to know how
> control was validated in this instance, if that's something you're able to
> share (I understand you reasonably might not be able, and if so, no
> problem).
> 
> If Cloudflare *was*, in fact, obtaining certificates on behalf of all its
> DNS-using (only) customers on the "off chance" that they might want to use
> their proxy services in the future, that would be extremely creepy and
> unpleasant, but so far I don't think there's enough evidence to be able to
> say such a thing is happening at present.  It seems far more likely that
> bupt.moe was a Cloudflare proxy customer (if only for a *very* brief time),
> the certificate was issued for that purpose, and now the domain has been
> pointed elsewhere, and the name is just hanging around in a cert which will
> expire in six months or so.
> 
> - Matt

I am the owner of BUPT.MOE and I just use DNS service.
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