I did some more investigation. I ran named with strace on as follows:
strace /usr/sbin/named -f -u named
strace shows that named gets to a sigsuspend system call and stops. This
explains why the process is running but isn't accepting any connections.
Apparently, it's waiting on some sort of signal in order to continue, but
I dont' know what signal that might be or why it goes into sigsuspend() in
the first place.
If I do a /usr/sbin/named -g -u named, then the system works...
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