Internet Services Delta Manual for HP-UX 11i Version 1.6

• Extended Configuration Syntax and Options
• Improved Logging Mechanism
NOTE: For information on the above features, refer to the BIND 9.1.3 Release Notes available
at: http://www.docs.hp.com/hpux/netcom/index.html#Internet%20Services
BIND 9.2.0 Features
The features incorporated in BIND 9.2.0 on HP-UX 11i Version 1.6 are:
• Incremental Zone Transfer
• DNSSEC
• Dynamic DNS Update
• TSIG-based Security
• Lightweight Resolver Library and Daemon
• Improved Logging Mechanism
• Extended Configuration Syntax and Options
• New Options in "options" Statement
• A utility, named-checkconf to check the syntax of named.conf file
• A utility, named-checkzone to check the syntax and consistency of a zone's contents
• A utility, rndc to control the operation of a name server
• A utility rndc-confgen to generate the configuration file for rndc
• New command line options
• New options in "server" statement
• New options in "zone" statement
The above features are discussed in the following subsections for your reference.
Incremental Zone Transfer
The incremental zone transfer protocol is a mechanism for slave servers to transfer only the changed
data, instead of transferring the entire zone every time the zone data changes. This is defined in
RFC 1995.
When acting as a master, BIND 9.2.0 supports IXFR for those zones where the necessary change
history information is available. These include master zones maintained by dynamic updates and
slave zones whose data was obtained by IXFR. It does not support IXFR for manually maintained
master zones and slave zones obtained by zone transfer (AXFR).
When acting as a slave, BIND 9.2.0 will attempt to use IXFR unless it is explicitly disabled.
The option statements used to disable IXFR are:
[request-ixfr yes_or_no;]
[provide-ixfr yes_or_no;]
These options are set manually by the administrator in the /etc/named.conf configuration file.
These options can be set to 'yes' or 'no' or can be excluded from the /etc/named.conf
configuration file.
The provide-ixfr clause determines whether the local server, acting as a master, will respond
with incremental zone transfer when the given remote server, a slave, requests it.
30 BIND 9.2.0