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BIND 9

	BIND version 9 is a major rewrite of nearly all aspects of the
	underlying BIND architecture.  Some of the important features of
	BIND 9 are:

		- DNS Security
			DNSSEC (signed zones)
			TSIG (signed DNS requests)

		- IP version 6
			Answers DNS queries on IPv6 sockets
			IPv6 resource records (A6, DNAME, etc.)
			Bitstring Labels
			Experimental IPv6 Resolver Library

		- DNS Protocol Enhancements
			IXFR, DDNS, Notify, EDNS0
			Improved standards conformance

		- Views
			One server process can provide multiple "views" of
			the DNS namespace, e.g. an "inside" view to certain
			clients, and an "outside" view to others.

		- Multiprocessor Support

		- Improved Portability Architecture


	BIND version 9 development has been underwritten by the following
	organizations:

		Sun Microsystems, Inc.
		Hewlett Packard
		Compaq Computer Corporation
		IBM
		Process Software Corporation
		Silicon Graphics, Inc.
		Network Associates, Inc.
		U.S. Defense Information Systems Agency
		USENIX Association
		Stichting NLnet - NLnet Foundation



BIND 9.1.2rc1

	BIND 9.1.2rc1 is a release candidate for BIND 9.1.2.
	It contains fixes for a number of bugs in BIND 9.1.1
	but no new features.

	DNSSEC users should note that DNSSEC validation involving
	algorithms other than RSA will not interoperate between
	9.1.2rc1 and older versions of BIND 9, because the older
	versions use an incorrect formula for calculating key tags
	of non-RSA keys.

	Features introduced in 9.1.0 included:

	  - Many BIND 8 features previously unimplemented in BIND 9,
	    including domain-specific forwarding, the $GENERATE
	    master file directive, and the "blackhole", "dialup", 
	    and "sortlist" options

	  - Forwarding of dynamic update requests; this is enabled 
	    by the "allow-update-forwarding" option

	  - A new, simplified database interface and a number of
	    sample drivers based on it; see doc/misc/sdb for details

	  - Support for building single-threaded servers for 
	    environments that do not supply POSIX threads

	  - New configuration options: "min-refresh-time",
	    "max-refresh-time", "min-retry-time", "max-retry-time",
	    "additional-from-auth", "additional-from-cache",
	    "notify explicit"

	  - Faster lookups, particularly in large zones.

	BIND 9.1 also includes experimental implementations of a
	number of DNS protocols extensions still under development
	in the IETF.  These include transparent processing of
	unknown RR types and use of the EDNS "DNSSEC OK" bit to
	explicitly enable DNSSEC processing in responses.

	Cryptographic operations are now based on the OpenSSL
	library instead of DNSsafe.

	BIND 9.1 is primarily a name server software distribution.
	In addition to the name server, it also includes a new
	lightweight stub resolver library and associated resolver
	daemon that fully support forward and reverse lookups of both
	IPv4 and IPv6 addresses.  This library is still considered
	experimental and is not a complete replacement for the BIND 8
	resolver library.  Applications that use the BIND 8 res_*
	functions to perform DNS lookups or dynamic updates still need
	to be linked against the BIND 8 libraries.  For DNS lookups,
	they can also use the new "getrrsetbyname()" API.

	BIND 9.1 is capable of acting as an authoritative server
	for DNSSEC secured zones.  This functionality is believed to
	be stable and complete except for lacking support for wildcard
	records in secure zones.

	When acting as a caching server, BIND 9.1 can be configured
	to perform DNSSEC secure resolution on behalf of its clients.
	This part of the DNSSEC implementation is still considered
	experimental.  For detailed information about the state of the
	DNSSEC implementation, see the file doc/misc/dnssec.

	There are a few known bugs:

		On some systems, IPv6 and IPv4 sockets interact in
		unexpected ways.  For details, see doc/misc/ipv6.
		To reduce the impact of these problems, the server
		no longer listens for requests on IPv6 addresses
		by default.  If you need to accept DNS queries over
		IPv6, you must specify "listen-on-v6 { any; };"
		in the named.conf options statement.

		There are known problems with thread signal handling 
		under Solaris 2.6 and BSD/OS.  We recommend disabling
		threads with "configure --disable-threads" on these
		platforms.

		FreeBSD prior to 4.2 (and 4.2 if running as non-root)
		and OpenBSD prior to 2.8 log messages like
		"fcntl(8, F_SETFL, 4): Inappropriate ioctl for device".
		This is due to a bug in "/dev/random" and impacts the
		server's DNSSEC support.

		--with-libtool does not work on AIX.


	For a detailed list of user-visible changes from
	previous releases, see the CHANGES file.


Building

	BIND 9 currently requires a UNIX system with an ANSI C compiler,
	basic POSIX support, and a 64 bit integer type.

	We've had successful builds and tests on the following systems:

		AIX 4.3
		COMPAQ Tru64 UNIX 4.0D
		COMPAQ Tru64 UNIX 5 (with IPv6 EAK)
		FreeBSD 3.4-STABLE, 3.5, 4.0, 4.1
		HP-UX 11
		IRIX64 6.5
		NetBSD 1.5 (with unproven-pthreads-0.17)
		Red Hat Linux 6.0, 6.1, 6.2, 7.0
		Solaris 2.6, 7, 8

	Additionally, we have unverified reports of success building
	previous versions of BIND 9 from users of the following systems:

		Slackware Linux 7.0 with 2.4.0-test6 kernel and glibc 2.1.3
		Slackware Linux 7.0.1 with glibc 2.1.3
		OpenBSD 2.6, 2.8, -current
		UnixWare 7.1.1
		HP-UX 10.20

	To build, just

		./configure
		make

	Do not use a parallel "make".

	Several environment variables that can be set before running
	configure will affect compilation:

	    CC
		The C compiler to use.	configure tries to figure
		out the right one for supported systems.

	    CFLAGS
		C compiler flags.  Defaults to include -g and/or -O2
		as supported by the compiler.

	    STD_CINCLUDES
		System header file directories.	 Can be used to specify
		where add-on thread or IPv6 support is, for example.
		Defaults to empty string.

	    STD_CDEFINES
		Any additional preprocessor symbols you want defined.
		Defaults to empty string.

	To build shared libraries, specify "--with-libtool" on the
	configure command line.

	To build without multithreading, specify "--disable-threads"
	on the configure command line.

	If your operating system has integrated support for IPv6, it
	will be used automatically.  If you have installed KAME IPv6
	separately, use "--with-kame[=PATH]" to specify its location.

	To see additional configure options, run "configure --help".

	"make install" will install "named" and the various BIND 9 libraries.
	By default, installation is into /usr/local, but this can be changed
	with the "--prefix" option when running "configure".

	If you're planning on making changes to the BIND 9 source, you
	should also "make depend".  If you're using Emacs, you might find
	"make tags" helpful.

	Building with gcc is not supported, unless gcc is the vendor's usual
	compiler (e.g. the various BSD systems, Linux).

	A limited test suite can be run with "make test".  Many of
	the tests require you to configure a set of virtual IP addresses
	on your system, and some require Perl; see bin/tests/system/README
	for details.

	Linux systems do not provide useful core dumps for multithreaded 
	programs unless the kernel patch in contrib/linux/coredump-patch
	has been applied.  We recommend all Linux users to install this
	patch so that any server crashes can be properly diagnosed.

Documentation

	The BIND 9 Administrator Reference Manual is included with the
	source distribution in DocBook XML and HTML format, in the
	doc/arm directory.

	Some of the programs in the BIND 9 distribution have man pages
	under the doc/man directory.  In particular, the command line
	options of "named" are documented in doc/man/bind/named.8.
	There is now also a set of man pages for the lwres library.

	The man pages are currently not installed automatically by
	"make install".

	If you are upgrading from BIND 8, please read the migration
	notes in doc/misc/migration.  If you are upgrading from
	BIND 4, read doc/misc/migration-4to9.


Bug Reports and Mailing Lists
	Bugs reports should be sent to

		bind9-bugs@isc.org

	To join the BIND 9 Users mailing list, send mail to

		bind9-users-request@isc.org

	If you're planning on making changes to the BIND 9 source
	code, you might want to join the BIND 9 Workers mailing list.
	Send mail to

		bind9-workers-request@isc.org


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