So, I have a handful of very happy K4 boxes, and I'm trying to get my
NetBSD-current system to interoperate with them.

I get:

kinit: Cannot contact any KDC for requested realm while getting initial credentials

What's that mean?  My krb5.conf says:

[realms]
        PLETHORA.NET = {
                kdc = herd.PLETHORA.NET
                admin_server = herd.PLETHORA.NET
                default_domain = PLETHORA.NET
        }

which I thought was correct.  The corresponding 'krb.conf' from my K4 system
is

PLETHORA.NET    herd.PLETHORA.NET admin server

Do these not mean roughly the same thing?  Do I need something equivalent to
'srvtab', and if so, what format is it in?

I compiled with
	KERBEROS=       4

if it matters, but I'm not sure I understand the configuration here.  ;-)

-s