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System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP)

The Server Statement

support-ixfr is obsolete, however all of the following options work unchanged in BIND 9. Note the default for transfer-format has changed.


  Syntax
     server ip_addr {
       [ bogus yes_or_no; ]
       [ transfers number; ]
       [ transfer-format ( one-answer | many-answers ); ]
       [ keys { key_id [ key_id ... ] }; ]
       [ edns yes_or_no; ]
     };