SSHFP DNS - OS / stub resolvers that deliver "secured" answers ?

Darren Tucker dtucker at dtucker.net
Thu Dec 15 08:53:42 AEDT 2022


On Thu, 15 Dec 2022 at 01:36, vom513 <vom513 at gmail.com> wrote:
> However one thing that I’m still trying to wrap my head around is the mechanism under the hood to mark fingerprints as “secure”.

The thing you're looking for is the "Authenticated Data" or AD bit
(RFC3655) in your resolver library.  If your system resolver doesn't
support this OpenSSH can be built against LDNS (./configure
--with-ldns) which does.

-- 
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860  37F4 9357 ECEF 11EA A6FA (new)
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.


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