[Bug 268186] Kerberos authentication fails with a Linux/FreeIPA KDC

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 13 Dec 2022 23:54:06 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268186

--- Comment #21 from amendlik@gmail.com ---
Can you look at what encryption algorithm is being issued by your MIT KDC? If
it is encryption type 19 or 20, then I would agree that there is some
incompatibility with FreeIPA.

One reason I'm not quite convinced of an incompatibility is that I have gotten
this to work by restricting the algorithms that FreeIPA is allowed to use. If I
set "permitted_enctypes=aes256-cts-hmac-sha1-96 aes128-cts-hmac-sha1-96" in
krb5.conf on the KDC, it will not issue type 19 or 20 tickets and
authentication to/from FreeBSD works fine (Linux clients break, but I have not
dug into that yet).

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