HP-UX IP Address and Client Management Administrator's Guide (October 2009)

The options Statement
The options statement in the /etc/named.conf file controls global server configuration
options used in BIND. This statement can appear only once in a configuration file. If more than
one occurrence is found, the first occurrence determines the actual options used. Also, a warning
is generated if you define more than one options statement. If there is no options statement,
an options block with each option set to its default value is used.
The options statement is of the following format:
options {
// General Options
[ directory path_name ; ]
[ disable-algorithms domain { algorithm ;
[ algorithm ; ] }; ]
[ dnssec-lookaside domain trust-anchor domain ; ]
[ dnssec-must-be-secure domain yes_or_no ; ]
[ dump-file path_name ; ]
[ key-directory path_name ; ]
[ memstatistics-file path_name ; ]
[ pid-file path_name ; ]
[ port ip_port ; ]
[ preferred-glue ( A | AAAA | NONE ) ; ]
[ random-device path_name ; ]
[ root-delegation-only [ exclude { namelist } ] ; ]
[ statistics-file path_name ; ]
[ tkey-dhkey key_name key_tag ; ]
[ tkey-domain domainname ; ]
// Boolean Options
[ additional-from-auth yes_or_no ; ]
[ additional-from-cache yes_or_no ; ]
[ auth-nxdomain yes_or_no ; ]
[ check-names ( master | slave | response )
( warn | fail | ignore ) ; ]
[ dialup dialup_option ; ]
[ dnssec-enable yes_or_no ; ]
[ flush-zones-on-shutdown yes_or_no ; ]
[ match-mapped-addresses yes_or_no ; ]
[ minimal-responses yes_or_no ; ]
[ notify ( yes_or_no | explicit ) ; ]
[ provide-ixfr yes_or_no ; ]
[ querylog yes_or_no ; ]
[ recursion yes_or_no ; ]
[ request-ixfr yes_or_no ; ]
[ zone-statistics yes_or_no ; ]
// Access Control Options
[ allow-notify { address_match_list }; ]
[ allow-query { address_match_list }; ]
[ allow-recursion { address_match_list }; ]
[ allow-transfer { address_match_list }; ]
[ allow-update-forwarding { address_match_list }; ]
[ blackhole { address_match_list }; ]
// Bad UDP Port List Options
[ avoid-v4-udp-ports { port_list }; ]
[ avoid-v6-udp-ports { port_list }; ]
// Built-In Server Information Zone Options
[ hostname hostname_string ; ]
[ server-id server_id_string ; ]
[ version version_string ; ]
// Dual-Stack Server Option
30 Overview