zone transfer first refused, then works

[Mark Andrews]

> Why might I see a refused before the actual transfer (xfer occurs immediately
> after REFUSED)?

	From CHANGES.

1446.   [func]          Implemented undocumented alternate transfer sources
                        from BIND 8.  See use-alt-transfer-source,
                        alt-transfer-source and alt-transfer-source-v6.

                        SECURITY: use-alt-transfer-source is ENABLED unless
                        you are using views.  This may cause a security risk
                        resulting in accidental disclosure of wrong zone
                        content if the master supplying different source   
                        content based on IP address.  If you are not certain
                        ISC recommends setting use-alt-transfer-source no;

>  named[839]: general: info: zone subnet.rchland.ibm.com/IN: refresh:
>    unexpected rcode (REFUSED) from master 9.5.176.200#53 (source 0.0.0.0#0)
>  named[839]: general: info: zone subnet.rchland.ibm.com/IN: Transfer
>    started.
>  named[839]: xfer-in: info: transfer of 'subnet.rchland.ibm.com/IN' from
>    9.5.176.200#53: connected using 9.5.176.194#12911
>  named[839]: xfer-in: info: transfer of 'subnet.rchland.ibm.com/IN' from
>    9.5.176.200#53: end of transfer
> -- 
> Jeffrey Stevens
> gpg --keyserver pgp.mit.edu --recv-keys D2E5A4E8
> Key fingerprint: 1C86 8717 E485 FA4D B9EF 96E2 A1AC 4B00 D2E5 A4E8
> 
> 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org