BIND 10 #1992: support "also-notify"

[BIND 10 Development]

#1992: support "also-notify"
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            Reporter:  jinmei        |                        Owner:
                Type:  enhancement   |                       Status:  new
            Priority:  medium        |                    Milestone:  New
           Component:  xfrout        |  Tasks
           Sensitive:  0             |                     Keywords:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 Roughly speaking, it's a way to allow a user to specify a list
 of secondary servers to which BIND 10 needs to send notifies
 (even if they are not explicitly listed in the zone's NS or the
 address of them cannot easily be got from the zone itself).

 Some other configuration details need to be considered, too.

 See https://lists.isc.org/pipermail/bind10-users/2012-May/000347.html

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Ticket URL: <http://bind10.isc.org/ticket/1992>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development