6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed GouldBIND 9

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix BIND version 9 is a major rewrite of nearly all aspects of the

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould underlying BIND architecture. Some of the important features of

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould BIND 9 are:

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - DNS Security

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould DNSSEC (signed zones)

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix TSIG (signed DNS requests)

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - IP version 6

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Answers DNS queries on IPv6 sockets

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix IPv6 resource records (AAAA)

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Experimental IPv6 Resolver Library

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - DNS Protocol Enhancements

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix IXFR, DDNS, Notify, EDNS0

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk Improved standards conformance

b1771b4ea91b15a5da4a96f93e8aa78e700fd51ajohanengelen

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Views

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix One server process can provide multiple "views" of

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix the DNS namespace, e.g. an "inside" view to certain

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix clients, and an "outside" view to others.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Multiprocessor Support

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Improved Portability Architecture

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix

25ad3718fb4b96b39930af8e043c8ee1e624fd10cilix BIND version 9 development has been underwritten by the following

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix organizations:

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen Sun Microsystems, Inc.

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen Hewlett Packard

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix Compaq Computer Corporation

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix IBM

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix Process Software Corporation

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix Silicon Graphics, Inc.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Network Associates, Inc.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix U.S. Defense Information Systems Agency

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix USENIX Association

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Stichting NLnet - NLnet Foundation

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Nominum, Inc.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix For a summary of functional enhancements in previous

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix releases, see the HISTORY file.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix For a detailed list of user-visible changes from

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix previous releases, see the CHANGES file.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix For up-to-date release notes and errata, see

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix http://www.isc.org/software/bind9/releasenotes

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilixBIND 9.11.1

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix BIND 9.11.1 is a maintenance release and addresses the security

74b408ae13ffc5a6e8cfafda04a3edbc5a32c89ccilix flaws disclosed in CVE-2016-6170, CVE-2016-8864, CVE-2016-9131,

74b408ae13ffc5a6e8cfafda04a3edbc5a32c89ccilix CVE-2016-9147, CVE-2016-9778, CVE-2017-3135, CVE-2017-3136, and

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix CVE-2017-3137.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

fce046713c4cb905f38bf489cc4a73af425f3037Maximilian AlbertBIND 9.11.0

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix BIND 9.11.0 includes a number of changes from BIND 9.10 and earlier

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix releases. New features include:

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Added support for Catalog Zones, a new method for provisioning

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix servers: a list of zones to be served is stored in a DNS zone,

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix along with their configuration parameters. Changes to the

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix catalog zone are propagated to slaves via normal AXFR/IXFR,

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix whereupon the zones that are listed in it are automatically

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk added, deleted or reconfigured.

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk - Added support for "dnstap", a fast and flexible method of

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk capturing and logging DNS traffic.

d7e43efbcb4e431ff2fc52941513cc1bd614afa5cilix - Added support for "dyndb", a new API for loading zone data

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk from an external database, developed by Red Hat for the FreeIPA

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk project.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "fetchlimit" quotas are now compiled in by default. These

ecda720053ff791e35dae3c5c1177bc225b6cdf1johanengelen are for the use of recursive resolvers that are are under

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix high query load for domains whose authoritative servers are

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix nonresponsive or are experiencing a denial of service attack:

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix + "fetches-per-server" limits the number of simultaneous queries

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix that can be sent to any single authoritative server. The

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix configured value is a starting point; it is automatically

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix adjusted downward if the server is partially or completely

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix non-responsive. The algorithm used to adjust the quota can be

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix configured via the "fetch-quota-params" option.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix + "fetches-per-zone" limits the number of simultaneous queries

8001ba81cb851b38d86650a2fef5817facffb763johanengelen that can be sent for names within a single domain. (Note:

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Unlike "fetches-per-server", this value is not self-tuning.)

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix + New stats counters have been added to count

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix queries spilled due to these quotas.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Added a new "dnssec-keymgr" key mainenance utility, which can

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix generate or update keys as needed to ensure that a zone's

a98d7da87dea01e6c39b3df95b78fc6a397dd685bgk keys match a defined DNSSEC policy.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The experimental "SIT" feature in BIND 9.10 has been renamed

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix "COOKIE" and is no longer optional. EDNS COOKIE is a mechanism

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix enabling clients to detect off-path spoofed responses, and

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix servers to detect spoofed-source queries. Clients that identify

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix themselves using COOKIE options are not subject to response rate

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix limiting (RRL) and can receive larger UDP responses.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - SERVFAIL responses can now be cached for a limited time

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix (defaulting to 1 second, with an upper limit of 30).

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix This can reduce the frequency of retries when a query is

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix persistently failing.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Added an "nsip-wait-recurse" switch to RPZ. This causes NSIP

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix rules to be skipped if a name server IP address isn't in the

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix cache yet; the address will be looked up and the rule will be

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix applied on future queries.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Added a Python RNDC module. This allows multiple commands to

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix sent over a persistent RNDC channel, which saves time.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The "controls" block in named.conf can now grant read-only

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix "rndc" access to specified clients or keys. Read-only clients

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix could, for example, check "rndc status" but could not

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix reconfigure or shut down the server.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "rndc" commands can now return arbitrarily large amounts of

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix text to the caller.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The zone serial number of a dynamically updatable zone

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix can now be set via "rndc signing -serial <number> <zonename>".

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix This allows inline-signing zones to be set to a specific

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix serial number.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The new "rndc nta" command can be used to set a Negative

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix Trust Anchor (NTA), disabling DNSSEC validation for a

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix specific domain; this can be used when responses from a

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix domain are known to be failing validation due to administrative

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix error rather than because of a spoofing attack. Negative

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix trust anchors are strictly temporary; by default they expire

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix after one hour, but can be configured to last up to one week.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "rndc delzone" can now be used on zones that were not originally

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix created by "rndc addzone".

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "rndc modzone" reconfigures a single zone, without requiring

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix the entire server to be reconfigured.

d7e43efbcb4e431ff2fc52941513cc1bd614afa5cilix - "rndc showzone" displays the current configuration of a zone.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "rndc managed-keys" can be used to check the status of RFC 5001

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix managed trust anchors, or to force trust anchors to be refreshed.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "max-cache-size" can now be set to a percentage of available

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix memory. The default is 90%.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - Update forwarding performance has been improved by allowing

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix a single TCP connection to be shared by multiple updates.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The EDNS Client Subnet (ECS) option is now supported for

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix authoritative servers; if a query contains an ECS option

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix then ACLs containing "geoip" or "ecs" elements can match

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix against the the address encoded in the option. This can be

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix used to select a view for a query, so that different answers

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix can be provided depending on the client network.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - The EDNS EXPIRE option has been implemented on the client

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix side, allowing a slave server to set the expiration timer

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix correctly when transferring zone data from another slave

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix server.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - The key generation and manipulation tools (dnssec-keygen,

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix dnssec-settime, dnssec-importkey, dnssec-keyfromlabel) now

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix take "-Psync" and "-Dsync" options to set the publication

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix and deletion times of CDS and CDNSKEY parent-synchronization

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix records. Both named and dnssec-signzone can now publish and

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix remove these records at the scheduled times.

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen - A new "minimal-any" option reduces the size of UDP responses

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix for query type ANY by returning a single arbitrarily selected

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix RRset instead of all RRsets.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - A new "masterfile-style" zone option controls the formatting

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix of text zone files: When set to "full", a zone file is dumped

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix in single-line-per-record format.

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen - "serial-update-method" can now be set to "date". On update,

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilix the serial number will be set to the current date in YYYYMMDDNN

c3521f69a168bb569f01c674683489ea8e98f7f5johanengelen format.

c3521f69a168bb569f01c674683489ea8e98f7f5johanengelen - "dnssec-signzone -N date" sets the serial number to YYYYMMDDNN.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "named -L <filename>" causes named to send log messages to

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix the specified file by default instead of to the system log.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "dig +ttlunits" prints TTL values with time-unit suffixes:

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix w, d, h, m, s for weeks, days, hours, minutes, and seconds.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "dig +unknownformat" prints dig output in RFC 3597 "unknown

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen record" presentation format.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "dig +ednsopt" allows dig to set arbitrary EDNS options on

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix requests.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "dig +ednsflags" allows dig to set yet-to-be-defined EDNS

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix flags on requests.

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix - "mdig" is an alternate version of dig which sends multiple

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix pipelined TCP queries to a server. Instead of waiting for a

36285e420d3124dfe8cd2c5a8ac5a76bf7cdd4c6cilix response after sending a query, it sends all queries

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix immediately and displays responses in the order received.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "serial-query-rate" no longer controls NOTIFY messages.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix These are separately controlled by "notify-rate" and

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix "startup-notify-rate".

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - "nsupdate" now performs "check-names" processing by default

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix on records to be added. This can be disabled with

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix "check-names no".

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - The statistics channel now supports DEFLATE compression,

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix reducing the size of the data sent over the network when

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix querying statistics.

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix - New counters have been added to the statistics channel

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix to track the sizes of incoming queries and outgoing responses in

70eb1fc448cb08acf3468f80fa2296c03b32afd2cilix histogram buckets, as specified in RSSAC002.

6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould - A new NXDOMAIN redirect method (option "nxdomain-redirect")

has been added, allowing redirection to a specified DNS

namespace instead of a single redirect zone.

- When starting up, named now ensures that no other named

process is already running.

- Files created by named to store information, including "mkeys"

and "nzf" files, are now named after their corresponding views

unless the view name contains characters incompatible with use

as a filename. Old style filenames (based on the hash of the

view name) will still work.

This release addresses the security flaws described in

CVE-2014-3214, CVE-2014-3859, CVE-2014-8500, CVE-2014-8680,

CVE-2015-1349, CVE-2015-5477, CVE-2015-5722, CVE-2015-5986,

CVE-2015-8000, CVE-2015-8704, CVE-2015-8705, CVE-2016-1285,

CVE-2016-1286, CVE-2016-2088, CVE-2016-2775 and CVE-2016-2776.

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, 5, 6

Fedora Core 5, 7, 8

FreeBSD 6, 7, 8

HP-UX 11.23 PA

MacOS X 10.5, 10.6, 10.7

Red Hat Enterprise Linux 4, 5, 6

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. Please include '-g'

if you need to set CFLAGS.

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.

(This feature is deprecated. Use `delv` instead.)

-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)

On most platforms, BIND 9 is built with multithreading

support, allowing it to take advantage of multiple CPUs.

You can configure this by specifying "--enable-threads" or

"--disable-threads" on the configure command line. The default

is to enable threads, except on some older operating systems

on which threads are known to have had problems in the past.

(Note: Prior to BIND 9.10, the default was to disable threads on

Linux systems; this has been reversed. On Linux systems, the

threaded build is known to change BIND's behavior with respect

to file permissions; it may be necessary to specify a user with

the -u option when running named.)

To build shared libraries, specify "--with-libtool" on the

configure command line.

Certain compiled-in constants and default settings can be

increased to values better suited to large servers with abundant

memory resources (e.g, 64-bit servers with 12G or more of memory)

by specifying "--with-tuning=large" on the configure command

line. This can improve performance on big servers, but will

consume more memory and may degrade performance on smaller

systems.

For the server to support DNSSEC, you need to build it

with crypto support. You must have OpenSSL 1.0.1t

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".

To support the HTTP statistics channel, the server must

be linked with at least one of the following: libxml2

(http://xmlsoft.org) or json-c (https://github.com/json-c).

If these are installed at a nonstandard prefix, use

"--with-libxml2=/prefix" or "--with-libjson=/prefix".

To support compression on the HTTP statistics channel, the

server must be linked against libzlib (--with-zlib=/prefix).

Python requires 'argparse' and 'ply' to be available.

'argparse' is a standard module as of Python 2.7 and Python 3.2.

On some platforms it is necessary to explicitly request large

file support to handle files bigger than 2GB. This can be

done by "--enable-largefile" on the configure command line.

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.

Known limitations

Linux requires kernel build 2.6.39 or later to get the

performance benefits from using multiple sockets.

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.

Change Log

A detailed list of all changes to BIND 9 is included in the

file CHANGES, with the most recent changes listed first.

Change notes include tags indicating the category of the

change that was made; these categories are:

[func] New feature

[bug] General bug fix

[security] Fix for a significant security flaw

[experimental] Used for new features when the syntax

or other aspects of the design are still

in flux and may change

[port] Portability enhancement

[maint] Updates to built-in data such as root

server addresses and keys

[tuning] Changes to built-in configuration defaults

and constants to improve performance

[performance] Other changes to improve server performance

[protocol] Updates to the DNS protocol such as new

RR types

[test] Changes to the automatic tests, not

affecting server functionality

[cleanup] Minor corrections and refactoring

[doc] Documentation

[contrib] Changes to the contributed tools and

libraries in the 'contrib' subdirectory

[placeholder] Used in the master development branch to

reserve change numbers for use in other

branches, e.g. when fixing a bug that only

exists in older releases

In general, [func] and [experimental] tags will only appear

in new-feature releases (i.e., those with version numbers

ending in zero). Some new functionality may be backported to

older releases on a case-by-case basis. All other change

types may be applied to all currently-supported releases.

Bug Reports and Mailing Lists

Bug reports should be sent to:

bind9-bugs@isc.org

Feature requests can be sent to:

bind-suggest@isc.org

To join or view the archives of the BIND Users mailing list,

visit:

https://lists.isc.org/mailman/listinfo/bind-users

If you're planning on making changes to the BIND 9 source

code, you may also want to join the BIND Workers mailing

list:

https://lists.isc.org/mailman/listinfo/bind-workers

Information on read-only Git access, coding style and developer

guidelines can be found at:

http://www.isc.org/git/

Acknowledgments

- This product includes software developed by the OpenSSL Project

for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/).

- This product includes cryptographic software written by Eric

Young (eay@cryptsoft.com).

- This product includes software written by Tim Hudson

(tjh@cryptsoft.com).