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authorMartin Nagy <mnagy@redhat.com>2009-02-11 20:37:59 +0100
committerMartin Nagy <mnagy@redhat.com>2009-02-11 20:37:59 +0100
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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 (AAAA)
+ 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
+ Nominum, Inc.
+
+BIND 9.6.0
+
+ BIND 9.6.0 includes a number of changes from BIND 9.5 and earlier
+ releases, including:
+
+ Full NSEC3 support
+
+ Automatic zone re-signing
+
+ New update-policy methods tcp-self and 6to4-self
+
+ The BIND 8 resolver library, libbind, has been removed from the
+ BIND 9 distribution and is now available as a separate download.
+
+ Change the default pid file location from /var/run to
+ /var/run/{named,lwresd} for improved chroot/setuid support.
+
+BIND 9.5.0
+
+ BIND 9.5.0 has a number of new features over 9.4,
+ including:
+
+ GSS-TSIG support (RFC 3645).
+
+ DHCID support.
+
+ Experimental http server and statistics support for named via xml.
+
+ More detailed statistics counters including those supported in BIND 8.
+
+ Faster ACL processing.
+
+ Use Doxygen to generate internal documentation.
+
+ Efficient LRU cache-cleaning mechanism.
+
+ NSID support.
+
+BIND 9.4.0
+
+ BIND 9.4.0 has a number of new features over 9.3,
+ including:
+
+ Implemented "additional section caching (or acache)", an
+ internal cache framework for additional section content to
+ improve response performance. Several configuration options
+ were provided to control the behavior.
+
+ New notify type 'master-only'. Enable notify for master
+ zones only.
+
+ Accept 'notify-source' style syntax for query-source.
+
+ rndc now allows addresses to be set in the server clauses.
+
+ New option "allow-query-cache". This lets allow-query be
+ used to specify the default zone access level rather than
+ having to have every zone override the global value.
+ allow-query-cache can be set at both the options and view
+ levels. If allow-query-cache is not set then allow-recursion
+ is used if set, otherwise allow-query is used if set, otherwise
+ the default (localhost; localnets;) is used.
+
+ rndc: the source address can now be specified.
+
+ ixfr-from-differences now takes master and slave in addition
+ to yes and no at the options and view levels.
+
+ Allow the journal's name to be changed via named.conf.
+
+ 'rndc notify zone [class [view]]' resend the NOTIFY messages
+ for the specified zone.
+
+ 'dig +trace' now randomly selects the next servers to try.
+ Report if there is a bad delegation.
+
+ Improve check-names error messages.
+
+ Make public the function to read a key file, dst_key_read_public().
+
+ dig now returns the byte count for axfr/ixfr.
+
+ allow-update is now settable at the options / view level.
+
+ named-checkconf now checks the logging configuration.
+
+ host now can turn on memory debugging flags with '-m'.
+
+ Don't send notify messages to self.
+
+ Perform sanity checks on NS records which refer to 'in zone' names.
+
+ New zone option "notify-delay". Specify a minimum delay
+ between sets of NOTIFY messages.
+
+ Extend adjusting TTL warning messages.
+
+ Named and named-checkzone can now both check for non-terminal
+ wildcard records.
+
+ "rndc freeze/thaw" now freezes/thaws all zones.
+
+ named-checkconf now check acls to verify that they only
+ refer to existing acls.
+
+ The server syntax has been extended to support a range of
+ servers.
+
+ Report differences between hints and real NS rrset and
+ associated address records.
+
+ Preserve the case of domain names in rdata during zone
+ transfers.
+
+ Restructured the data locking framework using architecture
+ dependent atomic operations (when available), improving
+ response performance on multi-processor machines significantly.
+ x86, x86_64, alpha, powerpc, and mips are currently supported.
+
+ UNIX domain controls are now supported.
+
+ Add support for additional zone file formats for improving
+ loading performance. The masterfile-format option in
+ named.conf can be used to specify a non-default format. A
+ separate command named-compilezone was provided to generate
+ zone files in the new format. Additionally, the -I and -O
+ options for dnssec-signzone specify the input and output
+ formats.
+
+ dnssec-signzone can now randomize signature end times
+ (dnssec-signzone -j jitter).
+
+ Add support for CH A record.
+
+ Add additional zone data constancy checks. named-checkzone
+ has extended checking of NS, MX and SRV record and the hosts
+ they reference. named has extended post zone load checks.
+ New zone options: check-mx and integrity-check.
+
+
+ edns-udp-size can now be overridden on a per server basis.
+
+ dig can now specify the EDNS version when making a query.
+
+ Added framework for handling multiple EDNS versions.
+
+ Additional memory debugging support to track size and mctx
+ arguments.
+
+ Detect duplicates of UDP queries we are recursing on and
+ drop them. New stats category "duplicates".
+
+ "USE INTERNAL MALLOC" is now runtime selectable.
+
+ The lame cache is now done on a <qname,qclass,qtype> basis
+ as some servers only appear to be lame for certain query
+ types.
+
+ Limit the number of recursive clients that can be waiting
+ for a single query (<qname,qtype,qclass>) to resolve. New
+ options clients-per-query and max-clients-per-query.
+
+ dig: report the number of extra bytes still left in the
+ packet after processing all the records.
+
+ Support for IPSECKEY rdata type.
+
+ Raise the UDP recieve buffer size to 32k if it is less than 32k.
+
+ x86 and x86_64 now have seperate atomic locking implementations.
+
+ named-checkconf now validates update-policy entries.
+
+ Attempt to make the amount of work performed in a iteration
+ self tuning. The covers nodes clean from the cache per
+ iteration, nodes written to disk when rewriting a master
+ file and nodes destroyed per iteration when destroying a
+ zone or a cache.
+
+ ISC string copy API.
+
+ Automatic empty zone creation for D.F.IP6.ARPA and friends.
+ Note: RFC 1918 zones are not yet covered by this but are
+ likely to be in a future release.
+
+ New options: empty-server, empty-contact, empty-zones-enable
+ and disable-empty-zone.
+
+ dig now has a '-q queryname' and '+showsearch' options.
+
+ host/nslookup now continue (default)/fail on SERVFAIL.
+
+ dig now warns if 'RA' is not set in the answer when 'RD'
+ was set in the query. host/nslookup skip servers that fail
+ to set 'RA' when 'RD' is set unless a server is explicitly
+ set.
+
+ Integrate contibuted DLZ code into named.
+
+ Integrate contibuted IDN code from JPNIC.
+
+ libbind: corresponds to that from BIND 8.4.7.
+
+BIND 9.3.0
+
+ BIND 9.3.0 has a number of new features over 9.2,
+ including:
+
+ DNSSEC is now DS based (RFC 3658).
+ See also RFC 3845, doc/draft/draft-ietf-dnsext-dnssec-*.
+
+ DNSSEC lookaside validation.
+
+ check-names is now implemented.
+ rrset-order in more complete.
+
+ IPv4/IPv6 transition support, dual-stack-servers.
+
+ IXFR deltas can now be generated when loading master files,
+ ixfr-from-differences.
+
+ It is now possible to specify the size of a journal, max-journal-size.
+
+ It is now possible to define a named set of master servers to be
+ used in masters clause, masters.
+
+ The advertised EDNS UDP size can now be set, edns-udp-size.
+
+ allow-v6-synthesis has been obsoleted.
+
+ NOTE:
+ * Zones containing MD and MF will now be rejected.
+ * dig, nslookup name. now report "Not Implemented" as
+ NOTIMP rather than NOTIMPL. This will have impact on scripts
+ that are looking for NOTIMPL.
+
+ libbind: corresponds to that from BIND 8.4.5.
+
+BIND 9.2.0
+
+ BIND 9.2.0 has a number of new features over 9.1,
+ including:
+
+ - The size of the cache can now be limited using the
+ "max-cache-size" option.
+
+ - The server can now automatically convert RFC1886-style
+ recursive lookup requests into RFC2874-style lookups,
+ when enabled using the new option "allow-v6-synthesis".
+ This allows stub resolvers that support AAAA records
+ but not A6 record chains or binary labels to perform
+ lookups in domains that make use of these IPv6 DNS
+ features.
+
+ - Performance has been improved.
+
+ - The man pages now use the more portable "man" macros
+ rather than the "mandoc" macros, and are installed
+ by "make install".
+
+ - The named.conf parser has been completely rewritten.
+ It now supports "include" directives in more
+ places such as inside "view" statements, and it no
+ longer has any reserved words.
+
+ - The "rndc status" command is now implemented.
+
+ - rndc can now be configured automatically.
+
+ - A BIND 8 compatible stub resolver library is now
+ included in lib/bind.
+
+ - OpenSSL has been removed from the distribution. This
+ means that to use DNSSEC, OpenSSL must be installed and
+ the --with-openssl option must be supplied to configure.
+ This does not apply to the use of TSIG, which does not
+ require OpenSSL.
+
+ - The source distribution now builds on Windows.
+ See win32utils/readme1.txt and win32utils/win32-build.txt
+ for details.
+
+ This distribution 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 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 9.2 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
+ verifications involving wildcard records in secure zones.
+
+ When acting as a caching server, BIND 9.2 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.
+
+ 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.
+
+ OS X 10.1.4 (Darwin 5.4), OS X 10.1.5 (Darwin 5.5) and
+ OS X 10.2 (Darwin 6.0) reports errors like
+ "fcntl(3, F_SETFL, 4): Operation not supported by device".
+ This is due to a bug in "/dev/random" and impacts the
+ server's DNSSEC support.
+
+ --with-libtool does not work on AIX.
+
+ A bug in some versions of the Microsoft DNS server can cause zone
+ transfers from a BIND 9 server to a W2K server to fail. For details,
+ see the "Zone Transfers" section in doc/misc/migration.
+
+ 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:
+
+ COMPAQ Tru64 UNIX 5.1B
+ Fedora Core 6
+ FreeBSD 4.10, 5.2.1, 6.2
+ HP-UX 11.11
+ Mac OS X 10.5
+ NetBSD 3.x and 4.0-beta
+ OpenBSD 3.3 and up
+ Solaris 8, 9, 9 (x86), 10
+ Ubuntu 7.04, 7.10
+ Windows XP/2003/2008
+
+ NOTE: As of BIND 9.5.1, 9.4.3, and 9.3.6, older versions of
+ Windows, including Windows NT and Windows 2000, are no longer
+ supported.
+
+ We have recent reports from the user community that a supported
+ version of BIND will build and run on the following systems:
+
+ AIX 4.3, 5L
+ CentOS 4, 4.5, 5
+ Darwin 9.0.0d1/ARM
+ Debian 4
+ Fedora Core 5, 7
+ FreeBSD 6.1
+ HP-UX 11.23 PA
+ MacOS X 10.4, 10.5
+ Red Hat Enterprise Linux 4, 5
+ SCO OpenServer 5.0.6
+ Slackware 9, 10
+ SuSE 9, 10
+
+ 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.
+
+ Possible settings:
+ Change the default syslog facility of named/lwresd.
+ -DISC_FACILITY=LOG_LOCAL0
+ Enable DNSSEC signature chasing support in dig.
+ -DDIG_SIGCHASE=1 (sets -DDIG_SIGCHASE_TD=1 and
+ -DDIG_SIGCHASE_BU=1)
+ Disable dropping queries from particular well known ports.
+ -DNS_CLIENT_DROPPORT=0
+ Sibling glue checking in named-checkzone is enabled by default.
+ To disable the default check set. -DCHECK_SIBLING=0
+ named-checkzone checks out-of-zone addresses by default.
+ To disable this default set. -DCHECK_LOCAL=0
+ To create the default pid files in ${localstatedir}/run rather
+ than ${localstatedir}/run/{named,lwresd}/ set.
+ -DNS_RUN_PID_DIR=0
+ Enable workaround for Solaris kernel bug about /dev/poll
+ -DISC_SOCKET_USE_POLLWATCH=1
+ The watch timeout is also configurable, e.g.,
+ -DISC_SOCKET_POLLWATCH_TIMEOUT=20
+
+ LDFLAGS
+ Linker flags. Defaults to empty string.
+
+ The following need to be set when cross compiling.
+
+ BUILD_CC
+ The native C compiler.
+ BUILD_CFLAGS (optional)
+ BUILD_CPPFLAGS (optional)
+ Possible Settings:
+ -DNEED_OPTARG=1 (optarg is not declared in <unistd.h>)
+ BUILD_LDFLAGS (optional)
+ BUILD_LIBS (optional)
+
+ To build shared libraries, specify "--with-libtool" on the
+ configure command line.
+
+ For the server to support DNSSEC, you need to build it
+ with crypto support. You must have OpenSSL 0.9.5a
+ or newer installed and specify "--with-openssl" on the
+ configure command line. If OpenSSL is installed under
+ a nonstandard prefix, you can tell configure where to
+ look for it using "--with-openssl=/prefix".
+
+ On some platforms it is necessary to explictly request large
+ file support to handle files bigger than 2GB. This can be
+ done by "--enable-largefile" on the configure command line.
+
+ On some platforms, BIND 9 can be built with multithreading
+ support, allowing it to take advantage of multiple CPUs.
+ You can specify whether to build a multithreaded BIND 9
+ by specifying "--enable-threads" or "--disable-threads"
+ on the configure command line. The default is operating
+ system dependent.
+
+ Support for the "fixed" rrset-order option can be enabled
+ or disabled by specifying "--enable-fixed-rrset" or
+ "--disable-fixed-rrset" on the configure command line.
+ The default is "disabled", to reduce memory footprint.
+
+ 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.
+
+ "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".
+
+ You may specify the option "--sysconfdir" to set the directory
+ where configuration files like "named.conf" go by default,
+ and "--localstatedir" to set the default parent directory
+ of "run/named.pid". For backwards compatibility with BIND 8,
+ --sysconfdir defaults to "/etc" and --localstatedir defaults to
+ "/var" if no --prefix option is given. If there is a --prefix
+ option, sysconfdir defaults to "$prefix/etc" and localstatedir
+ defaults to "$prefix/var".
+
+ To see additional configure options, run "configure --help".
+ Note that the help message does not reflect the BIND 8
+ compatibility defaults for sysconfdir and localstatedir.
+
+ 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.
+
+ If you need to re-run configure please run "make distclean" first.
+ This will ensure that all the option changes take.
+
+ Building with gcc is not supported, unless gcc is the vendor's usual
+ compiler (e.g. the various BSD systems, Linux).
+
+ Known compiler issues:
+ * gcc-3.2.1 and gcc-3.1.1 is known to cause problems with solaris-x86.
+ * gcc prior to gcc-3.2.3 ultrasparc generates incorrect code at -02.
+ * gcc-3.3.5 powerpc generates incorrect code at -02.
+ * Irix, MipsPRO 7.4.1m is known to cause problems.
+
+ 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.
+
+ SunOS 4 requires "printf" to be installed to make the shared
+ libraries. sh-utils-1.16 provides a "printf" which compiles
+ on SunOS 4.
+
+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
+ in their directories. In particular, the command line
+ options of "named" are documented in /bin/named/named.8.
+ There is now also a set of man pages for the lwres library.
+
+ 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.
+
+ Frequently asked questions and their answers can be found in
+ FAQ.
+
+
+Bug Reports and Mailing Lists
+
+ Bugs reports should be sent to
+
+ bind9-bugs@isc.org
+
+ To join the BIND Users mailing list, send mail to
+
+ bind-users-request@isc.org
+
+ archives of which can be found via
+
+ http://www.isc.org/ops/lists/
+
+ If you're planning on making changes to the BIND 9 source
+ code, you might want to join the BIND Workers mailing list.
+ Send mail to
+
+ bind-workers-request@isc.org
+
+