BIND 9.3.2 Release Notes

addresses. This option specifies host names or addresses of systems that access both
IPv4 and IPv6 transports. If the host name is specified, a name server must be able to
resolve a host name by using only the transport supported by the name server. If the
dual-stack-servers option is used in dual-stacked system, this option does not
have any influence if access to the IPv4 or IPv6 transport is disabled on the command
line using the named -4 command or named -6 command, respectively.
The syntax for the dual-stack-servers option in the options statement in the
/etc/named.conf file is as follows:
[ dual-stack-servers [port ip_port] { ( domain_name [port
ip_port] | ip_addr [port ip_port] ) ; ... }; ]
New Commands in the rndc Utility
The following are new commands in the remote name daemon control (rndc)
utility:
• retransfer zone [class [view]]
This command enables you to retransfer the given zone from the master name
server.
• freeze zone [class [view]]
This command enables you to suspend updates to a dynamic zone and enables
you to edit a zone that is usually updated dynamically. This command results in
changes to the journal file to be synchronized into the master, and the journal file
to be removed. All dynamic update attempts are refused if the zone is frozen.
• thaw zone [class [view]]
This command enables you to update a frozen dynamic zone. This command
causes the server to reload the zone from the disk and re-enables dynamic updates
after the load is complete.
For more information on these commands, see rndc(1). A sample rndc.conf file is
distributed with this release of BIND in the /usr/examples/bind directory. This
file can be generated automatically using the rndc-confgen utility, which is also
distributed with BIND 9.3.2.
New Option in the zone Statement
The delegation-only option is added to the zone statement. You can use this option
to enforce the delegation-only status of infrastructure zones (for example, COM, NET,
and ORG). Any answer that a name server receives without an explicit or implicit
delegation in the authority section is treated as NXDOMAIN, which indicates that a host
name is not found. The NXDOMAIN response is the type of response sent by the name
server.
BIND 9.3.2 Features 13