Note: This is a patched version, RR DHTNS has been added.

The purpose is to have a testing tool (dig) to request DHTNS records.

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.

For a summary of functional enhancements in previous
releases, see the HISTORY file.

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

BIND 9.7.0

BIND 9.7.0 includes a number of changes from BIND 9.6 and earlier
releases.  Most are intended to simplify DNSSEC configuration.

New features include:

- Fully automatic signing of zones by "named".
- Simplified configuration of DNSSEC Lookaside Validation (DLV).
- Simplified configuration of Dynamic DNS, using the "ddns-confgen"
  command line tool or the "local" update-policy option.  (As a side
  effect, this also makes it easier to configure automatic zone
  re-signing.)
- New named option "attach-cache" that allows multiple views to
  share a single cache.
- DNS rebinding attack prevention.
- New default values for dnssec-keygen parameters.
- Support for RFC 5011 automated trust anchor maintenance
- Smart signing: simplified tools for zone signing and key
  maintenance.
- The "statistics-channels" option is now available on Windows.
- A new DNSSEC-aware libdns API for use by non-BIND9 applications
- On some platforms, named and other binaries can now print out
  a stack backtrace on assertion failure, to aid in debugging.
- A "tools only" installation mode on Windows, which only installs
  dig, host, nslookup and nsupdate.
- Improved PKCS#11 support, including Keyper support and explicit
  OpenSSL engine selection.

Known issues in this release:

- In rare cases, DNSSEC validation can leak memory.  When this 
  happens, it will cause an assertion failure when named exits,
  but is otherwise harmless.  A fix exists, but was too late for
  this release; it will be included in BIND 9.7.1.

Compatibility notes:

- If you had built BIND 9.6 with any of ALLOW_NSEC3PARAM_UPDATE,
  ALLOW_SECURE_TO_INSECURE or ALLOW_INSECURE_TO_SECURE defined, then
  you should ensure that all changes that are in progress have
  completed prior to upgrading to BIND 9.7.  BIND 9.7 implements
  those features in a way which is not backwards compatible.

- Prior releases had a bug which caused HMAC-SHA* keys with long
  secrets to be used incorrectly.  Fixing this bug means that older
  versions of BIND 9 may fail to interoperate with this version
  when using TSIG keys.  If this occurs, the new "isc-hmac-fixup"
  tool will convert a key with a long secret into a form that works
  correctly with all versions of BIND 9.  See the "isc-hmac-fixup"
  man page for additional details.

- Revoking a DNSSEC key with "dnssec-revoke" changes its key ID.
  It is possible for the new key ID to collide with that of a
  different key.  Newly generated keys will not have this problem,
  as "dnssec-keygen" looks for potential collisions before
  generating keys, but exercise caution if using key revokation
  with keys that were generated by older versions of BIND 9.  See
  the Administrator's Reference Manual, section 4.10 ("Dynamic
  Trust Anchor Management") for more details.

- A bug was fixed in which a key's scheduled inactivity date was
  stored incorectly.  Users who participated in the 9.7.0 BETA test
  and had DNSSEC keys with scheduled inactivity dates will need to
  reset those keys' dates using "dnssec-settime -I".

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, 4.0-beta, 5.0-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.

Additional information on various subjects can be found
in the other README files.

Bug Reports and Mailing Lists

Bugs reports should be sent to

    [email protected]

To join the BIND Users mailing list, send mail to

    [email protected]

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

    [email protected]