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@@ -0,0 +1,396 @@ +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 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 () 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. 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. |