Error in answer in the FAQ?

[Cricket Liu]

Hi!

I just ran across the FAQ in the BIND 9 distribution, which I hadn't noticed
before.  Nice job!

I have some questions about the answer describing how to set up a slave
for multiple views, though.  Here's the answer:

"A: You will need to give the master and slave multiple IP addresses and
use those to make sure you reach the correct view on the other machine.

        e.g.
        Master: 10.0.1.1 (internal), 10.0.1.2 (external, IP alias)
            internal:
                match-clients { !10.0.1.2; !10.0.1.4; 10.0.1/24; };
                notify-source 10.0.1.1;
                transfer-source 10.0.1.1;
                query-source 10.0.1.1;
            external:
                match-clients { any; };
                recursion no;   // don't offer recursion to the world
                notify-source 10.0.1.2;
                transfer-source 10.0.1.2;
                query-source 10.0.1.2;

        Slave: 10.0.1.3 (internal), 10.0.1.4 (external, IP alias)
            internal:
                match-clients { !10.0.1.2; !10.0.1.4; 10.0.1/24; };
                notify-source 10.0.1.3;
                transfer-source 10.0.1.3;
                query-source 10.0.1.3;
            external:
                match-clients { any; };
                recursion no;   // don't offer recursion to the world
                notify-source 10.0.1.4;
                transfer-source 10.0.1.4;
                query-source 10.0.1.4;

        You put the external address on the alias so that all the other
        dns clients on these boxes see the internal view by default."

First, while I realize this is "pseudo-named.conf" format, the syntax
for query-source is wrong, isn't it?  It should be:

    query-source address 10.0.1.1;

Second, why are the transfer-source and query-source substatements
necessary on the master, and the notify-source and query-source
substatements necessary on the slave?  I would have expected
notify-source on the master and transfer-source on the slave to cover
it.

cricket