"Socket type not supported" with OTP

[BuzzSaw Code]

Looks like I get to answer my own question, FIPS mode breaks the
normal OTP setup in RHEL8:

https://bugzilla.redhat.com/show_bug.cgi?id=1872689

Bleah.

On Mon, Jan 9, 2023 at 11:15 PM BuzzSaw Code <buzzsaw.code at gmail.com> wrote:
>
> I've setup some new RHEL8 KDCs that will use the otp feature - I have
> this working on RHEL7 without issues.
>
> But on the RHEL8 hosts I'm getting "preauth (otp) verify failure:
> Socket type not supported" errors.
>
> Each KDC has a local radius server listening on the IPv6 loopback, so
> the kdc.conf has this for the otp config:
>
> [otp]
>    DEFAULT = {
>         server = localhost6:1812
>         secret = mysecret
>         strip_realm = true
>    }
>
> Is there a way to debug the KDC process further to see why it doesn't
> like that loopback without building a custom debug kdc ?