Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Renew these Let's Encrypt certificates by March 4
Viktor Dukhovni <ietf-dane@dukhovni.org> Sun, 08 March 2020 13:42 UTC
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Date: Sun, 08 Mar 2020 09:42:22 -0400
From: Viktor Dukhovni <ietf-dane@dukhovni.org>
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References: <20200304003828.7D2FC154D27A@ary.qy> <20200303210604.GA18965@fullerene> <60c385bc383a7cdea8b72aab454e2bb9e672b00c.camel@aegee.org> <20200307092946.GN7977@straasha.imrryr.org> <20200308114257.GA30913@fullerene>
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Subject: Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Renew these Let's Encrypt certificates by March 4
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On Sun, Mar 08, 2020 at 07:42:57AM -0400, Phil Pennock wrote: > On 2020-03-07 at 04:29 -0500, Viktor Dukhovni wrote: > > > Here opinions differ. Trusting a CA that validates domain control as > > weakly as Let's Encrypt would not be my choice. But with half the > > world trusting Let's Encrypt's "proofs" of domain control, you can > > perhaps be comfortable in knowing that you're not alone... > > If that's the concern, then tell Let's Encrypt which accounts are > allowed to issue certificates for your domain. > > Eg, in the zonefile for `spodhuis.org` I have: > > @ CAA 0 issue "globnix.net" > @ CAA 0 issue "letsencrypt.org\; accounturi=https://acme-v01.api.letsencrypt.org/acme/reg/1134193" Which then of course relies on their DNSSEC validation working properly, and (recent case in point) their implementation of CAA records working properly, ... I just avoid them entirely: dukhovni.org. IN CAA 0 issue dukhovni.org _25._tcp.smtp.dukhovni.org. IN TLSA 3 1 1 5e078b3160569f165a69eb860395bbbdc7576c3603c3452b07139c276b26d01c As I said, opinions differ. :-) -- Viktor.
- [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Renew th… Дилян Палаузов
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Alessandro Vesely
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Russ Allbery
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Phil Pennock
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… John Levine
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Viktor Dukhovni
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Phil Pennock
- Re: [ietf-smtp] DANE / Fwd: ACTION REQUIRED: Rene… Viktor Dukhovni