I have an OpenSuse Tumbleweed machine as part of an NIS network. 
Authentication is shared for all users across the network via NIS.  A couple of
months ago an update to Tumbleweed broke NIS severely.  It took me a long time
to determine what was wrong but what is happening is that it is originating the
connections to the NIS servers using a non-priviledged port, and because of
that
can not obtain the map passwd.adjunct.byname or byuid, because these maps are
available to root users / privileged ports only.

     I saw another bug that had narrowed this down to a specific library but I
can not find it because search here is not working, it hangs indefinitely.