HP-UX Reference (11i v2 03/08) - 4 File Formats (vol 8)

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named.conf(4) named.conf(4)
If no listen-on-v6 statement is specified, the server will not listen on any IPv6 address.
Query Address
If the server is unable to answer a question, it will query other nameservers.
query-source specifies
the address and port used for such queries. For queries sent over IPv6, there is a separate
query-
source-v6 option. If address is * or is omitted, a wildcard IP address (
INADDR_ANY) will be used. If
port is
* or is omitted, a random unprivileged port will be used. Default address and port are:
query-source address * port *;
query-source-v6 address * port *
Note: The address specified in the
query-source option is used for both UDP and TCP queries, but
the port applies only to UDP queries. TCP queries always use a random unprivileged port.
Zone Transfers
BIND has mechanisms in place to facilitate zone transfers and set limits on the amount of load that
transfers place on the system. The following options apply to zone transfers.
also-notify
Defines a global list of IP addresses of name servers that are also sent NOTIFY messages
whenever a fresh copy of the zone is loaded, in addition to the servers listed in the zone’s NS
records. This helps to ensure that copies of the zones will quickly converge on stealth servers.
If an also-notify list is given in a zone statement, it will override the options also-
notify statement. When a zone notify statement is set to "no", the IP addresses in the global
also-notify list will not be sent NOTIFY messages for that zone. The default is the empty
list (no global notification list).
max-transfer-time-in
Inbound zone transfers running longer than this many minutes will be terminated. Default is
120 minutes (2 hours).
max-transfer-idle-in
Inbound zone transfers making no progress in this many minutes will be terminated. Default
is 60 minutes (1 hour).
max-transfer-time-out
Outbound zone transfers running longer than this many minutes will be terminated. Default
is 120 minutes (2 hours).
max-transfer-idle-out
Outbound zone transfers making no progress in this many minutes will be terminated. The
default is 60 minutes (1 hour).
serial-query-rate
Slave servers will periodically query master servers to find out if zone serial numbers have
changed. Each such query uses a minute amount of the slave server’s network bandwidth. To
limit the amount of bandwidth used, BIND 9.2 limits the rate at which queries are sent. The
value of the serial-query-rate option, an integer, is the maximum number of queries
sent per second. The default is 20.
transfer-format
Zone transfers can be sent using two different formats, one-answer and many-answers.
The transfer-format option is used on the master server to determine which format it sends.
one-answer uses one DNS message per resource record transferred. many-answers
packs as many resource records as possible into a message. many-answers is more efficient,
but is only supported by relatively new slave servers, such as BIND 9.2, BIND 8.x and patched
versions of BIND 4.9.x. The default is many-answers. transfer-format may be over-
ridden on a per-server basis by using the server statement.
transfers-in
The maximum number of concurrently running inbound zone transfers. Default value is 10.
Increasing transfers-in may speed up the convergence of slave zones, but it may also
increase the load on the local system.
transfers-out
The maximum number of concurrently running outbound zone transfers. Zone transfer
requests in excess of the limit will be refused. Default value is 10.
Section 4−−188 Hewlett-Packard Company − 13 − HP-UX 11i Version 2: August 2003