• Viktor Dukhovni via mailop [2024-06-10 22:06]:
> On Mon, Jun 10, 2024 at 12:06:26PM +0200, Kirill Miazine via mailop wrote:
> 
> > Although there are better alternatives to 2 1 1 with Let's Encrypt, some
> > still use 2 1 1, and it seems Exchange Online is not happy when there are 14
> > TLSA records (why 14? because https://letsencrypt.org/certificates/)... A
> > good reason to not use 2 1 1....
> 
> The below includes four of the TLSA records twice, which is indeed
> invalid:
> 
>     e5545e211347241891c554a03934cde9b749664a59d26d615fe58f77990f2d03
>     bd936e72b212ef6f773102c6b77d38f94297322efc25396bc3279422e0c89270
>     8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
>     276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10

the paste in my email showed a diff from zone file... records mentioned
above had comments removed, so they showed up twice (once with - and
once with +)...

> Each RR should appear exactly once in an RRset.  Perhaps that's the
> problem and not the record count?  Do you still have the below published
> in live DNS?
> >  ; TLSA - LE certs published at https://letsencrypt.org/certificates/
> > -_le-tlsa       TLSA    2 1 1
> > 276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10 ; LE E1
> > -               TLSA    2 1 1
> > bd936e72b212ef6f773102c6b77d38f94297322efc25396bc3279422e0c89270 ; LE E2
> > -               TLSA    2 1 1
> > 8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d ; LE R3
> > -               TLSA    2 1 1
> > e5545e211347241891c554a03934cde9b749664a59d26d615fe58f77990f2d03 ; LE R4
> > +_le-tlsa       TLSA    2 1 1
> > 3586d4ecf070578cbd27aedce20b964e48bc149faeb9dad72f46b857869172b8 ; LE
> > +               TLSA    2 1 1
> > d016e1fe311948aca64f2de44ce86c9a51ca041df6103bb52a88eb3f761f57d7
> > +               TLSA    2 1 1
> > 2bbad93ab5c79279ec121507f272cbe0c6647a3aae52e22f388afab426b4adba
> > +               TLSA    2 1 1
> > 6ddac18698f7f1f7e1c69b9bce420d974ac6f94ca8b2c761701623f99c767dc7
> > +               TLSA    2 1 1
> > cbbc559b44d524d6a132bdac672744da3407f12aae5d5f722c5f6c7913871c75
> > +               TLSA    2 1 1
> > 885bf0572252c6741dc9a52f5044487fef2a93b811cdedfad7624cc283b7cdd5
> > +               TLSA    2 1 1
> > f1440a9b76e1e41e53a4cb461329bf6337b419726be513e42e19f1c691c5d4b2
> > +               TLSA    2 1 1
> > 919c0df7a787b597ed056ace654b1de9c0387acf349f73734a4fd7b58cf612a4
> > +               TLSA    2 1 1
> > 025490860b498ab73c6a12f27a49ad5fe230fafe3ac8f6112c9b7d0aad46941d
> > +               TLSA    2 1 1
> > f1647a5ee3efac54c892e930584fe47979b7acd1c76c1271bca1c5076d869888
> > +               TLSA    2 1 1
> > 8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
> > +               TLSA    2 1 1
> > 276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10
> > +               TLSA    2 1 1
> > e5545e211347241891c554a03934cde9b749664a59d26d615fe58f77990f2d03
> > +               TLSA    2 1 1
> > bd936e72b212ef6f773102c6b77d38f94297322efc25396bc3279422e0c89270
> 
> -- 
>     Viktor.
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-- 
    -- Kirill Miazine <k...@krot.org>
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