summaryrefslogtreecommitdiffstats
path: root/HISTORY.md
diff options
context:
space:
mode:
Diffstat (limited to 'HISTORY.md')
-rw-r--r--HISTORY.md417
1 files changed, 417 insertions, 0 deletions
diff --git a/HISTORY.md b/HISTORY.md
new file mode 100644
index 0000000..4e1dab3
--- /dev/null
+++ b/HISTORY.md
@@ -0,0 +1,417 @@
+<!--
+ - Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ -
+ - This Source Code Form is subject to the terms of the Mozilla Public
+ - License, v. 2.0. If a copy of the MPL was not distributed with this
+ - file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ -
+ - See the COPYRIGHT file distributed with this work for additional
+ - information regarding copyright ownership.
+-->
+### Functional enhancements from prior major releases of BIND 9
+
+#### BIND 9.10.0
+
+BIND 9.10.0 includes a number of changes from BIND 9.9 and earlier
+releases. New features include:
+
+ - DNS Response-rate limiting (DNS RRL), which blunts the
+ impact of reflection and amplification attacks, is always
+ compiled in and no longer requires a compile-time option
+ to enable it.
+ - An experimental "Source Identity Token" (SIT) EDNS option
+ is now available. Similar to DNS Cookies as invented by
+ Donald Eastlake 3rd, these are designed to enable clients
+ to detect off-path spoofed responses, and to enable servers
+ to detect spoofed-source queries. Servers can be configured
+ to send smaller responses to clients that have not identified
+ themselves using a SIT option, reducing the effectiveness of
+ amplification attacks. RRL processing has also been updated;
+ clients proven to be legitimate via SIT are not subject to
+ rate limiting. Use "configure --enable-sit" to enable this
+ feature in BIND.
+ - A new zone file format, "map", stores zone data in a
+ format that can be mapped directly into memory, allowing
+ significantly faster zone loading.
+ - "delv" (domain entity lookup and validation) is a new tool
+ with dig-like semantics for looking up DNS data and performing
+ internal DNSSEC validation. This allows easy validation in
+ environments where the resolver may not be trustworthy, and
+ assists with troubleshooting of DNSSEC problems. (NOTE:
+ In previous development releases of BIND 9.10, this utility
+ was called "delve". The spelling has been changed to avoid
+ confusion with the "delve" utility included with the Xapian
+ search engine.)
+ - Improved EDNS(0) processing for better resolver performance
+ and reliability over slow or lossy connections.
+ - A new "configure --with-tuning=large" option tunes certain
+ compiled-in constants and default settings to values better
+ suited to large servers with abundant memory. This can
+ improve performance on such servers, but will consume more
+ memory and may degrade performance on smaller systems.
+ - Substantial improvement in response-policy zone (RPZ)
+ performance. Up to 32 response-policy zones can be
+ configured with minimal performance loss.
+ - To improve recursive resolver performance, cache records
+ which are still being requested by clients can now be
+ automatically refreshed from the authoritative server
+ before they expire, reducing or eliminating the time
+ window in which no answer is available in the cache.
+ - New "rpz-client-ip" triggers and drop policies allowing
+ response policies based on the IP address of the client.
+ - ACLs can now be specified based on geographic location
+ using the MaxMind GeoIP databases. Use "configure
+ --with-geoip" to enable.
+ - Zone data can now be shared between views, allowing
+ multiple views to serve the same zones authoritatively
+ without storing multiple copies in memory.
+ - New XML schema (version 3) for the statistics channel
+ includes many new statistics and uses a flattened XML tree
+ for faster parsing. The older schema is now deprecated.
+ - A new stylesheet, based on the Google Charts API, displays
+ XML statistics in charts and graphs on javascript-enabled
+ browsers.
+ - The statistics channel can now provide data in JSON
+ format as well as XML.
+ - New stats counters track TCP and UDP queries received
+ per zone, and EDNS options received in total.
+ - The internal and export versions of the BIND libraries
+ (libisc, libdns, etc) have been unified so that external
+ library clients can use the same libraries as BIND itself.
+ - A new compile-time option, "configure --enable-native-pkcs11",
+ allows BIND 9 cryptography functions to use the PKCS#11 API
+ natively, so that BIND can drive a cryptographic hardware
+ service module (HSM) directly instead of using a modified
+ OpenSSL as an intermediary. (Note: This feature requires an
+ HSM to have a full implementation of the PKCS#11 API; many
+ current HSMs only have partial implementations. The new
+ "pkcs11-tokens" command can be used to check API completeness.
+ Native PKCS#11 is known to work with the Thales nShield HSM
+ and with SoftHSM version 2 from the Open DNSSEC project.)
+ - The new "max-zone-ttl" option enforces maximum TTLs for
+ zones. This can simplify the process of rolling DNSSEC keys
+ by guaranteeing that cached signatures will have expired
+ within the specified amount of time.
+ - "dig +subnet" sends an EDNS CLIENT-SUBNET option when
+ querying.
+ - "dig +expire" sends an EDNS EXPIRE option when querying.
+ When this option is sent with an SOA query to a server
+ that supports it, it will report the expiry time of
+ a slave zone.
+ - New "dnssec-coverage" tool to check DNSSEC key coverage
+ for a zone and report if a lapse in signing coverage has
+ been inadvertently scheduled.
+ - Signing algorithm flexibility and other improvements
+ for the "rndc" control channel.
+ - "named-checkzone" and "named-compilezone" can now read
+ journal files, allowing them to process dynamic zones.
+ - Multiple DLZ databases can now be configured. Individual
+ zones can be configured to be served from a specific DLZ
+ database. DLZ databases now serve zones of type "master"
+ and "redirect".
+ - "rndc zonestatus" reports information about a specified zone.
+ - "named" now listens on IPv6 as well as IPv4 interfaces
+ by default.
+ - "named" now preserves the capitalization of names
+ when responding to queries: for instance, a query for
+ "example.com" may be answered with "example.COM" if the
+ name was configured that way in the zone file. Some
+ clients have a bug causing them to depend on the older
+ behavior, in which the case of the answer always matched
+ the case of the query, rather than the case of the name
+ configured in the DNS. Such clients can now be specified
+ in the new "no-case-compress" ACL; this will restore the
+ older behavior of "named" for those clients only.
+ - new "dnssec-importkey" command allows the use of offline
+ DNSSEC keys with automatic DNSKEY management.
+ - New "named-rrchecker" tool to verify the syntactic
+ correctness of individual resource records.
+ - When re-signing a zone, the new "dnssec-signzone -Q" option
+ drops signatures from keys that are still published but are
+ no longer active.
+ - "named-checkconf -px" will print the contents of configuration
+ files with the shared secrets obscured, making it easier to
+ share configuration (e.g. when submitting a bug report)
+ without revealing private information.
+ - "rndc scan" causes named to re-scan network interfaces for
+ changes in local addresses.
+ - On operating systems with support for routing sockets,
+ network interfaces are re-scanned automatically whenever
+ they change.
+ - "tsig-keygen" is now available as an alternate command
+ name to use for "ddns-confgen".
+
+#### BIND 9.9.0
+
+BIND 9.9.0 includes a number of changes from BIND 9.8 and earlier
+releases. New features include:
+
+- Inline signing, allowing automatic DNSSEC signing of
+ master zones without modification of the zonefile, or
+ "bump in the wire" signing in slaves.
+- NXDOMAIN redirection.
+- New 'rndc flushtree' command clears all data under a given
+ name from the DNS cache.
+- New 'rndc sync' command dumps pending changes in a dynamic
+ zone to disk without a freeze/thaw cycle.
+- New 'rndc signing' command displays or clears signing status
+ records in 'auto-dnssec' zones.
+- NSEC3 parameters for 'auto-dnssec' zones can now be set prior
+ to signing, eliminating the need to initially sign with NSEC.
+- Startup time improvements on large authoritative servers.
+- Slave zones are now saved in raw format by default.
+- Several improvements to response policy zones (RPZ).
+- Improved hardware scalability by using multiple threads
+ to listen for queries and using finer-grained client locking
+- The 'also-notify' option now takes the same syntax as
+ 'masters', so it can used named masterlists and TSIG keys.
+- 'dnssec-signzone -D' writes an output file containing only DNSSEC
+ data, which can be included by the primary zone file.
+- 'dnssec-signzone -R' forces removal of signatures that are
+ not expired but were created by a key which no longer exists.
+- 'dnssec-signzone -X' allows a separate expiration date to
+ be specified for DNSKEY signatures from other signatures.
+- New '-L' option to dnssec-keygen, dnssec-settime, and
+ dnssec-keyfromlabel sets the default TTL for the key.
+- dnssec-dsfromkey now supports reading from standard input,
+ to make it easier to convert DNSKEY to DS.
+- RFC 1918 reverse zones have been added to the empty-zones
+ table per RFC 6303.
+- Dynamic updates can now optionally set the zone's SOA serial
+ number to the current UNIX time.
+- DLZ modules can now retrieve the source IP address of
+ the querying client.
+- 'request-ixfr' option can now be set at the per-zone level.
+- 'dig +rrcomments' turns on comments about DNSKEY records,
+ indicating their key ID, algorithm and function
+- Simplified nsupdate syntax and added readline support
+
+#### BIND 9.8.0
+
+BIND 9.8.0 includes a number of changes from BIND 9.7 and earlier
+releases. New features include:
+
+- Built-in trust anchor for the root zone, which can be
+ switched on via "dnssec-validation auto;"
+- Support for DNS64.
+- Support for response policy zones (RPZ).
+- Support for writable DLZ zones.
+- Improved ease of configuration of GSS/TSIG for
+ interoperability with Active Directory
+- Support for GOST signing algorithm for DNSSEC.
+- Removed RTT Banding from server selection algorithm.
+- New "static-stub" zone type.
+- Allow configuration of resolver timeouts via
+ "resolver-query-timeout" option.
+- The DLZ "dlopen" driver is now built by default.
+- Added a new include file with function typedefs
+ for the DLZ "dlopen" driver.
+- Made "--with-gssapi" default.
+- More verbose error reporting from DLZ LDAP.
+
+#### 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.
+
+#### BIND 9.6.0
+
+- 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
+
+- 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
+
+- 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
+ unless "recursion no;" is set in which case "none;" is used, 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
+
+- DNSSEC is now DS based (RFC 3658).
+- DNSSEC lookaside validation.
+- check-names is now implemented.
+- rrset-order is 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.
+- 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
+
+- 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.