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SSPI and SPN canonicalization

From: Brandon Ewing <brandon.ewing_at_warningg.com>
Date: Mon, 7 Jan 2019 11:23:41 -0600

By default, MIT kerberos will perform DNS canonicalziation of the SPN,
controlled by the dns_canonicalize_hostname value in libdefaults:

https://web.mit.edu/kerberos/krb5-latest/doc/admin/conf_files/krb5_conf.html#libdefaults

However, Windows SSPI does perform any canonicalization at all that I can
find. Chrome/Chromium appears to perform the canonicalization itself, also
controllable via config:

https://dev.chromium.org/administrators/policy-list-3#DisableAuthNegotiateCnameLookup

Does curl have a similar config setting to control this behavior? If not,
can it be added?

-- 
Brandon Ewing                                     (brandon.ewing_at_warningg.com)

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Received on 2019-01-07