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

Table 1-5 Boolean Options
DescriptionOption
If this option is set to yes, the AA bit is always set on NXDOMAIN
responses, even though the server is not authoritative. The default value
is yes.
auth-nxdomain yes_or_no;
If this option is set to yes, the server deallocates all the objects it has
allocated and writes a memory usage report to the file specified by the
memstatistics-file.
The default value is no because the operating system deallocates objects
faster than the server.
However, you can use the deallocate-on-exit option to detect memory
leaks.
deallocate-on-exit yes_or_no;
If this option is set to yes, the server simulates the obsolete DNS query
type IQUERY. The default value is no.
fake-iquery yes_or_no;
If this option is set to yes (the default value) the sever fetches glue resource
records that it does not posses, while constructing the additional data section
of a response.
You can use fetch-glue no with the recursion no option to prevent
the server’s cache from increasing in size or getting corrupted (at the cost
of requiring more work from the client).
fetch-glue yes_or_no;
If this option is set to yes, then for every host that the name server interacts
with, the statistics are maintained. The default value is no.
Setting host-statistics to yes consumes memory.
host-statistics yes_or_no;
If this option is set to yes, then multiple CNAME resource records are
allowed for a domain name.
HP recommends that you do not allow multiple CNAME records for a
domain name due to nonconformance with the standard. The default value
is no.
Multiple CNAME support is available because previous versions of BIND
allowed multiple CNAME records, and these records have been used in
the previous versions for load balancing.
multiple-cnames yes_or_no;
If this value is set to yes (the default value), DNS NOTIFY messages are
sent when a zone for which the server is authorized changes. The NOTIFY
message speeds the convergence between the master server and its slave
servers. A slave server that receives a NOTIFY message contacts the master
server for a zone and determines if a zone transfer is necessary. If a zone
transfer is necessary, the slave server initiates the zone transfer immediately.
You can also specify the notify option in the zone statement. This
overrides the options notify statement. See “DNS Change Notification”
(page 17) for more information.
notify yes_or_no;
If this option is set to yes, and a DNS query requests recursion, the server
attempts to answer all the queries. If recursion is set to no, and the server
is not aware of the answer, it returns a referral response to the client. The
default value is yes. See the option fetch-glue yes_or_no for more
information.
recursion yes_or_no;
This option determines whether the local server, acting as a master, responds
with an incremental zone transfer when the remote server (a slave) requests
the transfer. If this option is set to yes, incremental transfer is provided
whenever possible. If set to no, all transfers to the remote server are
non-incremental.
If not set, the value of the provide-ixfr option in the global options
block is used as default.
request-ixfr
BIND Name Service Overview 33