3 BIND version 9 is a major rewrite of nearly all aspects of the
4 underlying BIND architecture. Some of the important features of
9 TSIG (signed DNS requests)
12 Answers DNS queries on IPv6 sockets
13 IPv6 resource records (AAAA)
14 Experimental IPv6 Resolver Library
16 - DNS Protocol Enhancements
17 IXFR, DDNS, Notify, EDNS0
18 Improved standards conformance
21 One server process can provide multiple "views" of
22 the DNS namespace, e.g. an "inside" view to certain
23 clients, and an "outside" view to others.
25 - Multiprocessor Support
27 - Improved Portability Architecture
30 BIND version 9 development has been underwritten by the following
33 Sun Microsystems, Inc.
35 Compaq Computer Corporation
37 Process Software Corporation
38 Silicon Graphics, Inc.
39 Network Associates, Inc.
40 U.S. Defense Information Systems Agency
42 Stichting NLnet - NLnet Foundation
45 For a summary of functional enhancements in previous
46 releases, see the HISTORY file.
48 For a detailed list of user-visible changes from
49 previous releases, see the CHANGES file.
53 BIND 9.8.1 includes a number of bug fixes and enhancements from
54 BIND 9.8 and earlier releases. New features include:
56 - The DLZ "dlopen" driver is now built by default.
57 - Added a new include file with function typedefs
58 for the DLZ "dlopen" driver.
59 - Made "--with-gssapi" default.
60 - More verbose error reporting from DLZ LDAP.
64 BIND 9.8.0 includes a number of changes from BIND 9.7 and earlier
65 releases. New features include:
67 - Built-in trust anchor for the root zone, which can be
68 switched on via "dnssec-validation auto;"
70 - Support for response policy zones (RPZ).
71 - Support for writable DLZ zones.
72 - Improved ease of configuration of GSS/TSIG for
73 interoperability with Active Directory
74 - Support for GOST signing algorithm for DNSSEC.
75 - Removed RTT Banding from server selection algorithm.
76 - New "static-stub" zone type.
77 - Allow configuration of resolver timeouts via
78 "resolver-query-timeout" option.
82 BIND 9.7.0 includes a number of changes from BIND 9.6 and earlier
83 releases. Most are intended to simplify DNSSEC configuration.
87 - Fully automatic signing of zones by "named".
88 - Simplified configuration of DNSSEC Lookaside Validation (DLV).
89 - Simplified configuration of Dynamic DNS, using the "ddns-confgen"
90 command line tool or the "local" update-policy option. (As a side
91 effect, this also makes it easier to configure automatic zone
93 - New named option "attach-cache" that allows multiple views to
95 - DNS rebinding attack prevention.
96 - New default values for dnssec-keygen parameters.
97 - Support for RFC 5011 automated trust anchor maintenance
98 - Smart signing: simplified tools for zone signing and key
100 - The "statistics-channels" option is now available on Windows.
101 - A new DNSSEC-aware libdns API for use by non-BIND9 applications
102 - On some platforms, named and other binaries can now print out
103 a stack backtrace on assertion failure, to aid in debugging.
104 - A "tools only" installation mode on Windows, which only installs
105 dig, host, nslookup and nsupdate.
106 - Improved PKCS#11 support, including Keyper support and explicit
107 OpenSSL engine selection.
109 Known issues in this release:
111 - In rare cases, DNSSEC validation can leak memory. When this
112 happens, it will cause an assertion failure when named exits,
113 but is otherwise harmless. A fix exists, but was too late for
114 this release; it will be included in BIND 9.7.1.
118 - If you had built BIND 9.6 with any of ALLOW_NSEC3PARAM_UPDATE,
119 ALLOW_SECURE_TO_INSECURE or ALLOW_INSECURE_TO_SECURE defined, then
120 you should ensure that all changes that are in progress have
121 completed prior to upgrading to BIND 9.7. BIND 9.7 implements
122 those features in a way which is not backwards compatible.
124 - Prior releases had a bug which caused HMAC-SHA* keys with long
125 secrets to be used incorrectly. Fixing this bug means that older
126 versions of BIND 9 may fail to interoperate with this version
127 when using TSIG keys. If this occurs, the new "isc-hmac-fixup"
128 tool will convert a key with a long secret into a form that works
129 correctly with all versions of BIND 9. See the "isc-hmac-fixup"
130 man page for additional details.
132 - Revoking a DNSSEC key with "dnssec-revoke" changes its key ID.
133 It is possible for the new key ID to collide with that of a
134 different key. Newly generated keys will not have this problem,
135 as "dnssec-keygen" looks for potential collisions before
136 generating keys, but exercise caution if using key revokation
137 with keys that were generated by older versions of BIND 9. See
138 the Administrator's Reference Manual, section 4.10 ("Dynamic
139 Trust Anchor Management") for more details.
141 - A bug was fixed in which a key's scheduled inactivity date was
142 stored incorectly. Users who participated in the 9.7.0 BETA test
143 and had DNSSEC keys with scheduled inactivity dates will need to
144 reset those keys' dates using "dnssec-settime -I".
148 BIND 9 currently requires a UNIX system with an ANSI C compiler,
149 basic POSIX support, and a 64 bit integer type.
151 We've had successful builds and tests on the following systems:
153 COMPAQ Tru64 UNIX 5.1B
155 FreeBSD 4.10, 5.2.1, 6.2
158 NetBSD 3.x, 4.0-beta, 5.0-beta
160 Solaris 8, 9, 9 (x86), 10
164 NOTE: As of BIND 9.5.1, 9.4.3, and 9.3.6, older versions of
165 Windows, including Windows NT and Windows 2000, are no longer
168 We have recent reports from the user community that a supported
169 version of BIND will build and run on the following systems:
179 Red Hat Enterprise Linux 4, 5
189 Do not use a parallel "make".
191 Several environment variables that can be set before running
192 configure will affect compilation:
195 The C compiler to use. configure tries to figure
196 out the right one for supported systems.
199 C compiler flags. Defaults to include -g and/or -O2
200 as supported by the compiler.
203 System header file directories. Can be used to specify
204 where add-on thread or IPv6 support is, for example.
205 Defaults to empty string.
208 Any additional preprocessor symbols you want defined.
209 Defaults to empty string.
212 Change the default syslog facility of named/lwresd.
213 -DISC_FACILITY=LOG_LOCAL0
214 Enable DNSSEC signature chasing support in dig.
215 -DDIG_SIGCHASE=1 (sets -DDIG_SIGCHASE_TD=1 and
217 Disable dropping queries from particular well known ports.
218 -DNS_CLIENT_DROPPORT=0
219 Sibling glue checking in named-checkzone is enabled by default.
220 To disable the default check set. -DCHECK_SIBLING=0
221 named-checkzone checks out-of-zone addresses by default.
222 To disable this default set. -DCHECK_LOCAL=0
223 To create the default pid files in ${localstatedir}/run rather
224 than ${localstatedir}/run/{named,lwresd}/ set.
226 Enable workaround for Solaris kernel bug about /dev/poll
227 -DISC_SOCKET_USE_POLLWATCH=1
228 The watch timeout is also configurable, e.g.,
229 -DISC_SOCKET_POLLWATCH_TIMEOUT=20
232 Linker flags. Defaults to empty string.
234 The following need to be set when cross compiling.
237 The native C compiler.
238 BUILD_CFLAGS (optional)
239 BUILD_CPPFLAGS (optional)
241 -DNEED_OPTARG=1 (optarg is not declared in <unistd.h>)
242 BUILD_LDFLAGS (optional)
243 BUILD_LIBS (optional)
245 To build shared libraries, specify "--with-libtool" on the
246 configure command line.
248 For the server to support DNSSEC, you need to build it
249 with crypto support. You must have OpenSSL 0.9.5a
250 or newer installed and specify "--with-openssl" on the
251 configure command line. If OpenSSL is installed under
252 a nonstandard prefix, you can tell configure where to
253 look for it using "--with-openssl=/prefix".
255 On some platforms it is necessary to explictly request large
256 file support to handle files bigger than 2GB. This can be
257 done by "--enable-largefile" on the configure command line.
259 On some platforms, BIND 9 can be built with multithreading
260 support, allowing it to take advantage of multiple CPUs.
261 You can specify whether to build a multithreaded BIND 9
262 by specifying "--enable-threads" or "--disable-threads"
263 on the configure command line. The default is operating
266 Support for the "fixed" rrset-order option can be enabled
267 or disabled by specifying "--enable-fixed-rrset" or
268 "--disable-fixed-rrset" on the configure command line.
269 The default is "disabled", to reduce memory footprint.
271 If your operating system has integrated support for IPv6, it
272 will be used automatically. If you have installed KAME IPv6
273 separately, use "--with-kame[=PATH]" to specify its location.
275 "make install" will install "named" and the various BIND 9 libraries.
276 By default, installation is into /usr/local, but this can be changed
277 with the "--prefix" option when running "configure".
279 You may specify the option "--sysconfdir" to set the directory
280 where configuration files like "named.conf" go by default,
281 and "--localstatedir" to set the default parent directory
282 of "run/named.pid". For backwards compatibility with BIND 8,
283 --sysconfdir defaults to "/etc" and --localstatedir defaults to
284 "/var" if no --prefix option is given. If there is a --prefix
285 option, sysconfdir defaults to "$prefix/etc" and localstatedir
286 defaults to "$prefix/var".
288 To see additional configure options, run "configure --help".
289 Note that the help message does not reflect the BIND 8
290 compatibility defaults for sysconfdir and localstatedir.
292 If you're planning on making changes to the BIND 9 source, you
293 should also "make depend". If you're using Emacs, you might find
296 If you need to re-run configure please run "make distclean" first.
297 This will ensure that all the option changes take.
299 Building with gcc is not supported, unless gcc is the vendor's usual
300 compiler (e.g. the various BSD systems, Linux).
302 Known compiler issues:
303 * gcc-3.2.1 and gcc-3.1.1 is known to cause problems with solaris-x86.
304 * gcc prior to gcc-3.2.3 ultrasparc generates incorrect code at -02.
305 * gcc-3.3.5 powerpc generates incorrect code at -02.
306 * Irix, MipsPRO 7.4.1m is known to cause problems.
308 A limited test suite can be run with "make test". Many of
309 the tests require you to configure a set of virtual IP addresses
310 on your system, and some require Perl; see bin/tests/system/README
313 SunOS 4 requires "printf" to be installed to make the shared
314 libraries. sh-utils-1.16 provides a "printf" which compiles
319 The BIND 9 Administrator Reference Manual is included with the
320 source distribution in DocBook XML and HTML format, in the
323 Some of the programs in the BIND 9 distribution have man pages
324 in their directories. In particular, the command line
325 options of "named" are documented in /bin/named/named.8.
326 There is now also a set of man pages for the lwres library.
328 If you are upgrading from BIND 8, please read the migration
329 notes in doc/misc/migration. If you are upgrading from
330 BIND 4, read doc/misc/migration-4to9.
332 Frequently asked questions and their answers can be found in
335 Additional information on various subjects can be found
336 in the other README files.
339 Bug Reports and Mailing Lists
341 Bugs reports should be sent to
345 To join the BIND Users mailing list, send mail to
347 bind-users-request@isc.org
349 archives of which can be found via
351 http://www.isc.org/ops/lists/
353 If you're planning on making changes to the BIND 9 source
354 code, you might want to join the BIND Workers mailing list.
357 bind-workers-request@isc.org