1NSD RELEASE NOTES 2 34.1.19 4================ 5BUG FIXES: 6 - ignore fallthrough compiler warning in flex EOF rule. 7 - Fix warnings emitted by clang for --enable-packed. Alignment is not 8 a problem for x86_64, don't enable packed when the platform 9 requires aligned access. 10 - Fix spelling error in xfr-inspect. 11 - Fix 3392: Fix regression in 4.1.18 for notify lists with ip4 12 and ip6 targets. 13 - Add test for support of -Wno-address-of-packed-member for 14 --enable-packed. 15 16 174.1.18 18================ 19FEATURES: 20 - xfr-inspect, it is not installed, it prints xfr files from /tmp 21 made with 'make xfr-inspect' in the source dir. 22 - retry timeout between sending notifies dropped from 15 to 3 sec. 23 - NSD sends 16 notifies simultaneously. 24 - configure --enable-packed reduces memory usage, at expense of 25 unaligned reads. Saves about 17%. 26 - Save memory by selectively allocate precompiled nsec3 hashes, 27 saves about 16% memory. 28 - make ip-transparent option work on OpenBSD. 29 - Save about 2% memory by changing usage count size in name tree. 30 - Fix #2871: Increase number of sockets for xfrd transfers. 31BUG FIXES: 32 - Fix gcc 7.1.1 warnings. 33 - Fix writev compile warning on FreeBSD. 34 - Fix #1446: A corrupted zone file "propagates" to good ones. 35 - nsd-control zonestatus prints wait time between attempts, for zones 36 that are in that waiting time. 37 - Fix collision printout of nsec3 to print name, hash and reverse. 38 - Fix #1567: Change crit to err log level for gettimeofday failure. 39 Add defines for compile without syslog. 40 - Fix crash for DS query when parent and child zones both configured 41 in nsd.conf and parent zone has not loaded properly. 42 43 444.1.17 45================ 46FEATURES: 47 - zone parser parses type AVC (it has TXT format). 48 - Fix #1272: use writev to put tcp length field with data for outgoing 49 zone transfer requests. 50BUG FIXES: 51 - Fix potential null pointer in nsec3 adjustment tree. 52 - Fix text format of deletes for CDS and CDNSKEY, single 0 to represent 53 empty base64 or hex string. 54 55 564.1.16 57================ 58FEATURES: 59 - zone parser can parse acronyms for algorithms ED25519 and ED448. 60 - Fix 1243: Option to make NSD emit really minimal responses, 61 minimal-responses: yes in nsd.conf. 62BUG FIXES: 63 - Calculate new udb index after growing the array, fix from 64 Chaofeng Liu. 65 - Fix missing _t to _type conversion for disable-radix-tree option. 66 - Printout serial error with hint it may be too big. 67 - Fix 1228: OpenSSL include is not guarded with HAVE_SSL 68 - Patch for expire state in multi-master when masters includes 69 broken master, from Manabu Sonoda. 70 - minor manpage fix. 71 72 734.1.15 74================ 75BUG FIXES: 76 - Fix nsd-control and ipv6 only. 77 - Squelch zone transfer error address family not supported by protocol 78 at low verbosity levels. 79 - Fix #1195: Fix so that NSD fails on non-compliant values for Serial. 80 - Fix to rename _t typedefs because POSIX reserves them. 81 - Fix that nsec3 hash collisions only reported on verbosity level 3. 82 83 844.1.14 85================ 86FEATURES: 87 - Fix #1132 for SERVFAIL zones perform backoff, and remembers the 88 timeout on next startup. 89BUG FIXES: 90 - Fix null memcpy for radixtree with single link element. 91 - Robust fix against missing master in tcp_open for xfrd. 92 - Fix wildcards in include: config statements with chroot enabled. 93 - suppress compile warning in lex files. 94 - Fix to try every master once, then wait for timeout or notify. 95 - Save backoff timeout into xfrd.state file, this file has a higher 96 version number now. Old files are skipped silently (causes 97 refresh) and created as new files upon exit. 98 - Fix restart of zone transfers when new config becomes available. 99 100 1014.1.13 102================ 103FEATURES: 104 - multi-master-check: yes can be used to check all masters for the 105 last version, using the higher version from the configured masters, 106 from Manabu Sonoda. 107 - Support RR type OPENPGPKEY from RFC 7929. 108 - Can config key algorithms with the digest name, eg. 'sha256'. 109 - configure --disable-radix-tree for about 15% lower memory usage. 110 - for type SRV add A/AAAA to the additional section (if possible), 111 just like we already do for type MX. 112 - more extensible edns option handling. 113BUG FIXES: 114 - Fix compile warnings about unused result from write and strtol. 115 and signcompare in minmax retrytime. 116 - Fix #812: fix that make depend fails after distribution. 117 - Fix #817: xfrd update failed loop. 118 - Add robustness against unallocated data in nsec3 trees. 119 - Fix README spelling error of BSD license (reported by Joerg Jung). 120 - Fix multimaster for not tried full zone transfer for a expired zone. 121 - Fix #827: fix compile with openssl 1.1.0 with api=1.1.0. 122 123 1244.1.12 125================ 126BUG FIXES: 127 - Fix malformed edns query assertion failure, reported by 128 Michal Kepien (NASK). 129 130 1314.1.11 132================ 133FEATURES: 134 - When tcp is more than half full, use short timeout for tcp session. 135 - Patch for {max,min}-{refresh,retry}-time from YAMAGUCHI Takanori. 136 - Fix #790: size-limit-xfr can stop NSD from downloading infinite zone 137 transfer data size, from Toshifumi Sakaguchi. Fixes CVE-2016-6173 138 JVN#63359718 JPCERT#91251865. 139BUG FIXES: 140 - Fix build without IPv6, patch from Zdenek Kaspar. 141 - Fix #783: Trying to run a root server without having configured it 142 silently gives wrong answers. 143 - Fix #782: Serve DS record but parent zone has no NS record. 144 - Fix nsec3 missing for nsec3 signed parent and child for DS at zonecut. 145 146 1474.1.10 148================ 149FEATURES: 150 - ip-freebind: yesno option in nsd.conf sets IP_FREEBIND socket option 151 for Linux, binds to interfaces and addresses that are down. 152 - NSD includes AAAA before A for queries over IPV6 (in delegations). 153 And TC is set if no glue can be provided with a delegation because 154 of packet size. 155 - print notice that nsd is starting before taking off. 156BUG FIXES: 157 - Fix for openssl 1.1.0, HMAC_CTX size not exported from openssl. 158 - Fix #751: NSD fails to occlude names below a DNAME. 159 - If set without nsd.db print "" as the default in the man pages. 160 - Fix #755: NSD spins after a zone update and a lot of TCP queries. 161 - Fix for NSEC3 with zone signed without exact match for empty 162 nonterminals, the answer for that domain gets closest encloser. 163 - #772 Document that recvmmsg has IPv6 problems on some linux kernels. 164 165 1664.1.9 167================ 168BUG FIXES: 169 - Change the nsd.db file version because of nanosecond precision fix. 170 171 1724.1.8 173================ 174FEATURES: 175 - #732: tcp-mss, outgoing-tcp-mss options for nsd.conf, patch 176 from Daisuke Higashi. 177 - #739: zonefile changes when mtime is small are detected on reload, 178 if filesystem supports precision mtime values. 179 - RR type CSYNC (RFC7477) syntax is supported. 180BUG FIXES: 181 - take advantage of arc4random_uniform if available, patch from 182 Loganaden Velvindron. 183 - Fix flto check for OSX clang. 184 - Define _DEFAULT_SOURCE with _BSD_SOURCE for glibc 2.20 on Linux. 185 - Fix #736: segfault during zone transfer. 186 - Fix #744: Fix that NSD replies for configured but unloaded zone 187 with SERVFAIL, not REFUSED. 188 189 1904.1.7 191================ 192FEATURES: 193 - support configure --with-dbfile="" for nodb mode by default, where 194 there is no binary database, but nsd reads and writes zonefiles. 195 - reuseport: no is the default, because the feature is not troublefree. 196 - configure --enable-ratelimit-default-is-off with --enable-ratelimit 197 to set the default ratelimit to disabled but available in nsd.conf. 198 - version: "string" option to set chaos version query reply string. 199BUG FIXES: 200 - Fix zones updates from nsd parent event loop when there are a lot 201 of interfaces. 202 - portability fixes. 203 - patch from Doug Hogan for SSL_OP_NO_SSLvx options, for the new 204 defaults in the ssl libraries. 205 - updated contrib/nsd.spec, from Bálint Szigeti, with new configure 206 options. 207 - Allocate less memory for TSIG digest. 208 - Fix #721: Fix wrong error code (FORMERR) returned for unknown 209 opcode. NOTIMP expected. 210 - Fix zonec ttl mismatch printout to include more information. 211 - Fix TCP responses when REUSEPORT is in use by turning it off. 212 - Document default in manpage for rrl-slip, ip4 and 6 prefixlength. 213 - Explain rrl-slip better in documentation. 214 - Document that ratelimit qps and slip are updated in reconfig. 215 - Fix up defaults in manpage. 216 217 2184.1.6 219================ 220BUG FIXES: 221 - Fix #701: Fix that AD=1 set in a BADVERS response. 222 - Fix typo in zonec.c inside error message. 223 - Fix #711: Document that debug-mode yes is used for staying 224 attached to the supervisor console. 225 - Document verbosity 3 prints more information. 226 - nsd-checkconf warns for master zones with no zonefile statement. 227 - Fix start failure when many file descriptors are in use. 228 - The servfail rcode is not printed with a space in the middle. 229 - print failed token for config syntax error or parse error. 230 231 2324.1.5 233================ 234BUG FIXES: 235 - Fix #706: default port 53 not opened on ip4 because of getaddrinfo 236 hints initialisation failure. 237 238 2394.1.4 240================ 241FEATURES: 242 - RFC7553 RR Type URI support. 243 - removed hardcoded interface limit, --with-max-ips removed. 244 - SO_REUSEPORT support, by default on Linux, or with reuseport: yes. 245 - Admitted axfrs are logged at verbosity 1. Refused at verbosity 2. 246 - --enable-pie and --enable-relro-now options for a safer executable. 247BUG FIXES: 248 - Fix NSID response for short edns sizes. 249 - Fix that for expired zones NSD performs an AXFR and accepts newer 250 and older serial numbers. 251 - Document that minimal responses only minimizes responses to fit 252 in one datagram. It does not minimize smaller responses. 253 - Fix #618: documented need to list ip-addresses separately in 254 nsd.conf if there are multiple, because the source address of 255 replies can otherwise go wrong. 256 - Fix that notify from nsd-control contains soa serial. 257 - Fix #698 formatting errors and typos in nsd.8.in. 258 259 2604.1.3 261================ 262FEATURES: 263 - nsd-control addzones and delzones read list of zones from stdin. 264 - hmac sha224, sha384 and sha512 support, patch from David Gwynne. 265 - max-interfaces raised to 32. 266BUG FIXES: 267 - Fix #665: when removing subdomain, nsd does not reparse parent zone. 268 - Fix task and zonestat files to be stored in a subdirectory in tmp 269 to stop privilege elevation. 270 - Fix crash in zone parser for relative dname after error in origin. 271 - Fix that formerrors are ratelimited. 272 273 2744.1.2 275================ 276FEATURES: 277 - Incoming notifies have serial number logged (at verbosity 1). 278BUG FIXES: 279 - Remove some duplicate header includes (from Brad Smith). 280 - Fix tcp waiting list for zone transfers where the bind and connect 281 calls fail. 282 - Fix segfault in zone reader on invalid input. (thanks John Van de 283 Meulebrouck Brendgard) 284 - Fix segfault on double origin in zone reader (thanks John Van de 285 Meulebrouck Brendgard). 286 - Fix b64pton out of bounds error on invalid zonefile input. 287 (thanks John Van de Meulebrouck Brendgard) 288 - Fix origin directive from unused old value and subdomain parser 289 failure, reported by John Van de Meulebrouck Brendgard. 290 - Fix use after free after zonefile syntax error followed by ttl 291 or origin directive, reported by John Van de Meulebrouck Brendgard. 292 - Fix syntax error followed by too many TXT elements parse crash 293 reported by John Van de Meulebrouck Brendgard. 294 - Fix buffer overflow in config parse of domain name, 295 reported by John Van de Meulebrouck Brendgard. 296 - Use reallocarray for integer overflow protection, patch submitted 297 by Loganaden Velvindron. 298 - Fix allocation integer overflow checks. 299 - Fix #654: Fix contradiction in notify logging verbosity level. 300 - Fix #655: Fix contradiction in verbosity for zone transfers. 301 - Made log message more consistent, changed 'axfr refused' log message 302 to be more consistent with other messages. Also notify refused. 303 - verbosity 2 logs axfr refused and notify refused. 304 verbosity 1 contains less log messages. 305 306 3074.1.1 308================ 309FEATURES: 310 - RFC 7344: CDS and CDNSKEY (read record types). 311 - per zone statistics with --enable-zone-stats, config zone with 312 zonestats: "name", zones configured with the same string are added. 313 - Disabled use of SSLv3 in nsd-control. 314 - nsd-checkconf -f prints out full name of pidfile (with dir). 315 - Synthesize CNAMEs with same TTL as DNAME. 316BUG FIXES: 317 - Fix that expired zones stay expired after a server restart. 318 - Fix "xfrd_handle_ipc: bad mode" log errors when compiled 319 with --disable-bind8-stats. 320 - Fix #616: retry xfer for zones with no content after command. 321 - Fix char used as array index warnings on NetBSD. 322 - Fix that queries for noname CH TXT are REFUSED instead of nodata. 323 - Fixes for wildcard addition and deletion, speedup for some cases. 324 - Fix that failure to add tcp to tcp base does not leak the socket. 325 - Patch nsd_munin_ from Philip Paeps to use type ABSOLUTE. 326 - Fix spinning NSD with lots of failing transfers, due to pointer 327 comparison using void pointer subtraction (from Otto Moerbeek). 328 - Fix bug#637: fix that nsd.db grows limitlessly, an off by one 329 on one megabyte free chunks, created during AXFRs of large zones, 330 that caused the one megabyte chunk to be leaked. 331 - Fix casts for ctype functions (from Todd Miller). 332 - correct some hyphen-used-as-minus-sign (from Andreas Schulze) in 333 man pages. 334 - Fix zonesdir chroot error message. 335 336 3374.1.0 338================ 339FEATURES: 340 - database: "" starts without mmap of database. Less memory is used, 341 zones are read from text zonefile. 342 - optimised zonefile parse code and zonefile write code. 343 - zonefiles-write option in nsd.conf, enabled when database is "". 344 The server writes changed zonefiles to disk every hour. 345 - xfrdfile: "" disables xfrd.state. If enabled, zones that are 346 same as before are not checked for a serial update at server start. 347 - include: "foo/nsd.d/*.conf" works, wildcard glob on includes. 348 - nsd shuts down during init process if given signal. 349 - log-time-ascii option, default yes, with readable timestamp in log. 350 - nsd-control addzone reports if zone already exists. 351 - Fix #564: add nsd-checkzone tool to check zonefile correctness. 352 - Increased default --with-max-ips from 8 to 16, this increases the 353 number of interfaces you can specify in nsd.conf to listen to. 354BUG FIXES: 355 - Fixed shutdown message sporadically not printed on exit 356 (Thanks Anand Buddhdev). 357 - Documented zonefile %s syntax in nsd.conf man page. 358 - Fix manpage to put colon after zonefiles check and write. 359 - Change from 'Zone" to "zone" with ".. serial .. is updated" log 360 message. 361 - Changed maxbackoff for no-content secondary zones from 4h to 24h. 362 - Fix print filename of encompassing config file on read failure. 363 - Fix delete or rename of a lot of zones and make it take a 364 non-enormous time. 365 - Speed up deletion of zone contents a lot, (56s to 1s), speeds up 366 delete, rename and AXFR for zones. 367 - Fix #571: unused variable and incompatible pointer warnings when 368 compiled on a system without INET6. 369 - Fix write_socket return value check in server.c (Thanks Brad Smith, 370 Mark Kettenis). 371 - Fix that xfrd reaps children also if the signal is lost. 372 - Fix #577: makefile incorrectly installed manpages from srcdir. 373 - Fix #587: Default value for statistics is 0. 374 - Fix #553: Improve TXT parsing. 375 - Fix #590: rrl log does not print wildcard as a star but escaped. 376 - Fix #591: rrl log messages at verbosity level 1. 377 - fix strptime implicit declaration error on OpenBSD. 378 - Fix -O3 compile flag to -O2 to avoid miscompilations. 379 - Allow user to override the -g -O2 CFLAGS in ./configure. 380 - Fix endian.h include for OpenBSD. 381 - Fix #600: document that provide-xfr provides AXFR and not IXFR. 382 - Fix rising-load-average or memory-leaks in OSes (Linux since 2.6), 383 that keep track of all past process parents, or leak memory 384 for them. Fix makes it so there is no very deep string of 385 process parents. 386 - Remove .LP after .SH in man pages. 387 388 3894.0.3 390================ 391BUG FIXES: 392 - Fix nsd.db unclean close check. Previous databases are considered 393 unclean by the code and are created anew. 394 - Adds nsd.db larger than 400Tb check for sanity. Also test if 395 filesize as documented in the file is correct. 396 - nsd waits for tasks to complete on stop, prevents nsd.db corruption. 397 - fix to not delete tmpdir too early in shutdown process. 398 - disabled udb checking functionality that made it very slow, 399 this was enabled when enable-checking was turned on. 400 401 4024.0.2 403================ 404FEATURES: 405 - Return REFUSED for queries to non-hosted zones. 406 407BUG FIXES: 408 - Fix expired zones to give SERVFAIL, also when parent zone loaded. 409 - documented nsd-control zonestatus output in nsd-control manpage. 410 - remove mention of nsdc from nsd-checkconf manpage. 411 - Disabled recvmmsg and sendmmsg usage by default because kernel 412 versions have implementation issues: ipv6 ignored, security issues. 413 - Detect libevent2 install automatically by configure, and use 414 event2 header files if necessary. 415 - Fix #551: change Regent to Copyright holder in the LICENSE, 416 to match the definition on opensource.org for the BSD License. 417 - Fix #552: zonefile loads on nsd-control reconfig when the name 418 of the file has changed. 419 - Fix leak of zone name after zonefile read and fix malloc too 420 large that would be leaked in the radix tree. 421 - Fix from 3.2: make SOA RDATA comparisons in XFR more lenient (only 422 check serial). 423 - Fix that NSD will delete and recreate not-clean-closed databases. 424 425 4264.0.1 427================ 428FEATURES: 429 - recognizes ip-address and interface as synonyms for convenience. 430 - Support for EUI48 and EUI64 RR types enabled by default (RFC 7043). 431 - Support for CAA RRtype (RFC 6844). 432 - NSID can be set with "ascii_somestring" in ascii. 433 434BUG FIXES: 435 - Fix xfrd when zone transfer TCP contains zero length packets. 436 - Fix for NSEC3 zones where parent zone is co-hosted, also NSEC3, 437 because AXFRs overwrote nsec3 administration in the child zone. 438 - Fix that bad IXFR updates do not result in double SOA records, 439 and that an AXFR is started (attempted) when the zone state seems 440 to be inconsistent with the master's zone state. 441 - Log ip address for sendto and sendmmsg failures. 442 - Fix segfaults after read of zones with rr type WKS from zonefile. 443 - Seed PRNG for openssl at start of daemon, fixes SSL connection issue. 444 - Bugfix #534: IXFR query loop over UDP for zones that are unchanged. 445 - (same as in 3.2.16): fix wildcard cname to nxdomain repeated rrset. 446 - (same as in 3.2.16): Bugfix #542: Match RRSIG TTL with SOA TTL in 447 negative response. 448 - Check if configure in srcdir collides with outofdir build. 449 - Fix #546: output format errors in nsd_munin_ (Thanks Tom Hendrikx). 450 - Fix printout of high-chars in TXT on NetBSD. 451 4524.0.0 NSD 4.0 453=============== 454FEATURES: 455 - documented in doc/NSD-4-features. Change configuration without 456 restart, direct nameserver control with nsd-control, support a 457 higher number of zones. Higher performance (compared to NSD3). 458 - nsdc is gone. Use kill -HUP for reload (also checks if zonefiles 459 have changed and rereads them), and kill -TERM for quit. Or use 460 nsd-control for detailed control. 461 - cron job for nsdcpatch is gone. nsd-control write creates zonefiles. 462 - nsd.db has a new format that compacts itself when it is changed, 463 thus nsdc patch is no longer necessary. 464 - nsd.db is memory mapped, NSD needs (part of) that mmap in ram. 465 - tcp-count can go above 1000; epoll/kqueue support with libevent. 466 - nsd-control reconfig for updates with no restart (zones, keys, ..) 467 - nsd-control-setup to create keys for nsd-control (enable nsd-control 468 with remote-control: yes in nsd.conf). 469 - the NSD 3 feature of special zone stats are not ported to 4 yet, 470 as it would entail a complete reimplementation of the feature. 471FEATURES (incremental from BETA5): 472 - configure --disable-recvmmsg for compat with older Linux kernels, 473 by default it autodetects support in the kernel on the buildmachine. 474 - Fix time at 2038, uint32s changed to time_t, support 64bit time_t. 475 - Fix use of 32bit time, for 2038, thanks to Theo de Raadt for patch. 476BUG FIXES (incremental from BETA5): 477 - Bugfix #518 Incorrect RRL prefix length option names in nsd.conf 478 man page from Ville Mattila. 479 - Fix that xfrd, and nsd-control, does not stop responding when reload 480 errors out. The pid is sent like it should by server_main. 481 - Fix that EOF in quoted string error does not cause reload to exit. 482 - Fixup errors from the stack code checker. 483 - Removed use of random when arc4random is available. Thus, random 484 and srandom are then not linked with the executable. 485 - Fix segfault with no logfile and chroot (Thanks Patrik Lundin). 486 4874.0.0b5 BETA 5 release of NSD 4.0 488================================== 489FEATURES: 490 - Optimizations for startup, qps and tcp speed, beta bug fixes and 491 merge with code changes with NSD 3.2.16. 492 - nsd-mem tool (make nsd-mem) to estimate memory usage. 493 - Same as NSD 3.2.16: --enable-draft-rrtypes(EUI48, EUI64), rr-slip, 494 rrl-ipv[46]-prefix-length, ip-transparent config options. 495 - configure option --disable-flto. 496 - improved RRL logging (query details that caused blockage). 497 - nsd-control status prints out ratelimit if ratelimit is enabled. 498 - nsd-control verbosity prints out verbosity level without argument. 499 - Fix #491: pick program name (of executable) as syslog identity. 500 - printout percentage for long activities (to log). After about 5 501 seconds have passed. 502BUG FIXES: 503 - The same fixes up to NSD 3.2.16. 504 - Fix that old zonefile does not override newer AXFR for slave zones. 505 - Nicer printout of notify. 506 - Fix tcp zonetransfer pipeline lookup function. 507 - Fix compile on bigendian netbsd alpha. 508 - Fixup the growth and shrinkage of nsd.db. This should use less 509 calls to remap and change the file and mmap size. 510 - notify information is logged at correct verbosity level, 1. 511 - Fix memory statistics in nsd_munin_. 512 - faster nsec3 updates. 513 - Fixup contrib/bug390.patch for 4.0.0b4. 514 - remove leak of nsec3. 515 - allocate radixtree in region for small (5%) total savings and 516 about 15% savings in the radixtree itself (due to many small alloc 517 savings in region). 518 - Patch from Lukas Wunner that makes nsd.conf include files work 519 inside chroot/etc environments on repattern and reconfig. 520 - Fix race on exit of nsd, for restarts, so that the pidfile-pid 521 process waits until port53 has been closed before exiting. 522 - Patch from Lukas Wunner that makes chroot more consistent. 523 Make all paths absolute with the chrootdir in front, or use 524 an absolute zonesdir with other paths relative to that. 525 - Fix segfault on repeated reconfigs, double free of zone apex name. 526 - Fix zone parser allocations are put in the db region. 527 - Fix memory leak in zone parser for txt record. 528 - Optimizations: -O3 if possible (user can override CFLAGS), udp 529 buffers are set to 1m by default (if socket options exist), 530 use recvmmsg and sendmmsg, or only recvmmsg, or recvfrom. 531 - nsd.db 12% smaller, no nsec3 hash storage. Also ups udb version 532 because of the format change. The nsd.db is recreated when a 533 different version number is detected on startup. 534 - Fix region-allocator for speedup of load and change of large data. 535 - Increase tcpbacklog default to 256 (silently capped to 128 on BSD). 536 For remote control keep it at 16, it has less TCP load. 537 It does not actually increase TCP performance (some except), but 538 reduces connection loss when there is a spike in TCP connections. 539 - unlink xfr file if transfer is stopped, timeouted or interrupted. 540 And unlink xfr file in progress when the zone is deleted. 541 5424.0.0b4 BETA 4 release of NSD 4.0 543================================== 544BUG FIXES: 545 - remove -fwhole-program gcc flag usage. We cannot reliably detect 546 if it works without failure. 547 - fix zonefiles-check: entry in nsd.conf 548 - fix gcc warning, do not use uninit value for rng init. 549 - remove printout of "bad transfer" to the log for notimpl. 550 - printout log less verbosely, not every axfr packet. 551 - RRL documented in nsd.conf.sample 552 - Fix is_apex flag for zones read from udb. 553 - Fix that nsec3 zones are precompiled when read from udb. This 554 caused assertion failures. 555 - Less printout of 'bad transfer'. 556 - Fix AXFR of NSEC3 slave zone. 557 - Fix that old zonefile does not override newer AXFR for slave zones. 558 - Nicer printout of notify on verbosity 2. 559 5604.0.0b3 BETA 3 release of NSD 4.0 561================================== 562BUG FIXES: 563 - applied patch from Robin Hack to remove double pid file truncation. 564 - repattern is called reconfig (because most config options are 565 picked up, except for superuser options (chroot, logfile, port)) 566 - document that the zonefile attribute can be empty. 567 - documented that the _implicit_ pattern names are used internally. 568 - Added zonefiles-check option, default yes, check mtimes of zone files 569 on sighup and startup (from Robin Hack). 570 - Fix spurious assertion failure for some rrl blocks. 571 - Tabs and spaces nicer in nsd.conf.sample. 572 - List libevent in README. 573 - Fix configure for gentoo gcc and headers. 574 - do-ip4 and do-ip6 nsd.conf options just like unbound. 575 - do not leave task files in /tmp if nsd fails to startup because 576 of file permissions. 577 - create xfrdir on make install (does not remove on make uninstall, 578 because this could be /tmp). 579 - Fix segv if xfrdir does not exit. 580 - log ip address with tcp failure. 581 - Fix time calculation of zone transfer. 582 5834.0.0b2 BETA 2 release of NSD 4.0 584================================== 585FEATURES: 586 - Add and remove zones from nsd.conf with nsd-control repattern. 587 - Merge changes from 3.2.15 (such as xname-rcode fix). 588 589BUG FIXES: 590 - Fix for use with libev. 591 - 'nsd-control start' runs an absolute path to start sbin/nsd. 592 - Fix for use with libevent-2.1.2. 593 - --with-logfile sets the logfile inside the example documentation. 594 - Fixed addzone and delzone inside chroot (thanks Will Pressly). 595 - Fix make outside of source directory. 596 5974.0.0b1 BETA 1 release of NSD 4.0 598================================== 599FEATURES: 600 - add and remove zones without restart. 601 - nsdc is gone, use nsd-control for direct server control. 602 - performance increases 603 - support lots of zones 604 - and more ... 605 - longer desc in doc/NSD-4-features 606 607BUG FIXES: 608 - core code is fixed like 3.2.15r3763 (12 dec 2012). 609 610 6113.2.16 (development branch) 612================================= 613 614FEATURES: 615 - New config option "ip-transparent:" to allow NSD to bind to 616 non local addresses. Default no. 617 - Use IPV6 minimum MTU settings with TCP to reduce failures that 618 are caused by delays in learning working PMTU when communicating 619 through a tunnel. 620 - Bugfix #496: Support for EUI48 and EUI64 RR types. Experimental, 621 turned off by default. Enable with --enable-draft-rrtypes. 622 - New config option "rrl-slip:" to set the average number of 623 packets discarded before we send back a truncated response. 624 - New config option "rrl-ipv4-prefix-length:" and 625 "rrl-ipv6-prefix-length:" to set the prefix lengths. 626 - Improved RRL logging, also print triggering query src address and 627 QTYPE. 628 - Provide RRL documentation in nsd.conf.sample. 629 630BUG FIXES: 631 - Bugfix #357: Parent process waits until children closed down 632 sockets, to prevent NSD failing to bind to sockets when restarting. 633 - Bugfix #487: lookup3.c determine endianness for BSD systems. 634 - Bugfix #491: pick program name (0th argument) as syslog identity. 635 - Bugfix #494: Exit with return code 1 if socket code fails. 636 - RRtypes ASFDB, RP, RT should not compress dnames. 637 - Fix outgoing-interface: Don't fail if family is IPv6 but 638 only IPv4 outgoing-interface is set, or vice versa. 639 - RRtypes ASFDB, RP, RT should not compress dnames. 640 - Check that zone directory is within chroot directory. 641 - Better XFR checking, fallback to AXFR (if allowed) if three 642 malformed XFR packets have been seen. 643 644 6453.2.15 646================================= 647 648FEATURES: 649 - Support for ILNP RR types: NID, L32, L64, LP (RFC6742). 650 - RRL, --enable-ratelimit at configure time and config options. 651 - TSIG initialization only fails when there is no digest found 652 at all. 653 654BUG FIXES: 655 - Bugfix #478: Declaration after statement (for gcc 2.95). 656 - Bugfix #483: Better error message in case of TSIG error. 657 - Bugfix #485: TTL should not be greater than 2^31 - 1. 658 - Fix RCODE when CNAME loop final answer does not exist, should 659 return NXDOMAIN as stated by RFC 6604. 660 - Fix --disable-full-prehash bug, where after multiple incoming 661 IXFRs, NSEC3 can be removed unjustified. 662 6633.2.14 664================ 665 666FEATURES: 667 - TCP writev support. 668 669BUG FIXES: 670 - Fix build on OpenBSD (thanks Oliver Peter). 671 - Prioritize notify sender for requesting XFR (thanks Ilya Bakulin). 672 - Fix crash in zonec if TXT string too long (thanks Ilya Bakulin). 673 - tzset before chroot for correct timezone (thanks Camiel Dobbelaar). 674 - Fix --disable-full-prehash bug when nsdc patch happens while ixfr too, 675 it did not rehash the new database. 676 - Bugfix #464: Conditionally define MAXHOSTNAMELEN. 677 6783.2.13 679================ 680 681BUG FIXES: 682 - Fix for nsd-patch segfault if zone has been removed from nsd.conf 683 (thanks Ilya Bakulin). 684 - Bugfix #460: man page correction - identity. 685 - Bugfix #461: NSD child segfaults when asked for out-of-zone data 686 with --enable-zone-stats. [VU#517036 CVE-2012-2979] 687 688 6893.2.12 690================ 691 692BUG FIXES: 693 - Fix for VU#624931 CVE-2012-2978: NSD denial of service 694 vulnerability from non-standard DNS packet from any host 695 on the internet. 696 http://www.nlnetlabs.nl/downloads/CVE-2012-2978.txt 697 698 6993.2.11 700================ 701 702FEATURES: 703 - Fallback to AXFR if IXFR is unknown at the primary. NSD considers 704 IXFR unknown at the primary if there is a negative response for the 705 IXFR RRtype. This does not override the value for 706 'allow-axfr-fallback'. 707 - Allow for reading in new DNSKEY algorithm mnemonics (RFC5155, 708 RFC5702, RFC5933, and RFC6605 (ECDSA)). 709 - Zone statistics, enable with --enable-zone-stats. This stores the 710 BIND8 stats per zone in a configurable statistics file. This option 711 does not scale and should therefore not be enabled when serving 712 many zones. 713 - Support for TLSA RRtype (DANE). 714 715BUG FIXES: 716 - Fix for qtype ANY for a wildcard domain in NSEC signed zone: Don't 717 add the wildcard domain NSEC into the answer section. Instead, 718 put the wildcard expanded NSEC into the answer section and keep the 719 wildcard domain NSEC in the authority section. 720 - Fix for accept spinning reported by OpenBSD. 721 - Fix restart failed due to bad ixfr packet because of zone removed 722 from nsd.conf. 723 - Bugfix #453: typo in nsdc man page. 724 725OPERATIONAL NOTES: 726 - NSD uses the query name for dname compression again (Fix #235 727 had as side effect that this didn't happen anymore and is hereby 728 undone). 729 730 7313.2.10 732================ 733 734BUG FIXES: 735 - Bugfix #421: Truncate pidfile on shutdown, before unlink. 736 - Bugfix #423: Fix slow zone transfer processing due to 737 'Fix is_existing flag for ENT' bugfix. 738 - Fix bug #430: segfault when MAX_INTERFACES set to more than 65K. 739 - Fix configure.ac strptime check for gcc 4.6.2, acx_nlnetlabs update. 740 741 7423.2.9 743================ 744 745FEATURES: 746 - Minimize responses to reduce truncation: NSD will only add optional 747 records to the authority and additional sections when the response 748 size does not exceed the minimal response size. 749 750 The minimal response size is 512 (no-EDNS), 1480 (EDNS/IPv4), 751 1220 (EDNS/IPv6), or the advertized EDNS buffer size if that is 752 smaller than the EDNS default. 753 754 The feature is enabled by default. You can disable it by configuring 755 NSD with --disable-minimal-responses. 756 757 - Less NSEC3 prehashing. This will make NSD handle zone transfers 758 faster, but will decrease the performance of NXDOMAIN and wildcard 759 NODATA responses. Full prehashing is enabled by default. If you want 760 less NSEC3 prehashing, configure NSD with --disable-full-prehash. 761 Thanks Secure64 for the patch. 762 763BUG FIXES: 764 - Bugfix #302: nsd accepts XFR but refuses to re-read the slave zone. 765 - Bugfix #365: set patch style and zonec verbose for nsdc. 766 - First step of bug #369: RRSIG DNSKEY sets zone to be treated DNSSEC. 767 - Bugfix #375: typos in nsd.conf.5. 768 - Bugfix #381: Binary escaped and transfers. 769 - Bugfix #397: Don't allow relative domain names as origin in $INCLUDE 770 directives. 771 - Fix printout of IPSECKEY by nsd-patch. 772 - Fix is_existing flag for ENT when domain that has a shared ENT 773 is deleted by IXFR. (ENT == Empty Non-Terminal) 774 - Fix bug if the zonefile is changed for a secondary but stored 775 transfers are applied, and stop it from applying ixfr to empty zone. 776 The zone is flagged with error and AXFR-ed. 777 - Fix to have no authority NS set processing for CNAMEs. 778 - Fix nsd-checkconf to check tsig algorithms properly. 779 - Set the AA bit on responses that have an authoritative CNAME. 780 - Fix denial of existence response for empty non-terminal that looks 781 like a NSEC3-only domain (but has data below it). 782 783OPERATIONAL NOTES: 784 - nsd.db version number increased because NSD 3.2.7 and earlier 785 zonec is not compatible due to the TXT strings change. Please 786 run nsdc rebuild before running NSD 3.2.9 and later versions. 787 788 7893.2.8 790============= 791 792BUG FIXES: 793 - Do setusercontext() before chroot(), otherwise login.conf etc. are 794 required inside chroot. 795 - Bugfix #216: Fix leak of compressiontable when the domain table increases 796 in size. 797 - Bugfix #348: Don't include header/library path if OpenSSL is in /usr 798 - Bugfix #350: Refused notifies should log client ip. 799 - Bugfix #352: Fix hard coded paths in man pages. 800 - Bugfix #354: The realclean target deletes a bit too much. 801 - Bugfix #357, make xfrd quit with many zones. 802 - Bugfix #362: outgoing-interface and v4 vs. v6 leads to spurious 803 warning messages. 804 - Bugfix #363: nsd-checkconf -v does not print outgoing-interface ok. 805 - Bugfix: nsd-checkconf -o outgoing-interface omits NOKEY. 806 807OPERATIONAL NOTES: 808 - Use 'make clean' to clean up files that make created. 809 - Use 'make realclean' to also clean up files that were generated by 810 running ./configure. 811 - Use 'make devclean' to also clean up autoconf, autoheader files. 812 8133.2.7 814============= 815 816BUG FIXES: 817 - Bugfix #253: Don't put NS RRs in a response with QTYPE=DS. 818 - Bugfix #320: use arcrandom(4) for QID generation if available. 819 - Bugfix #328: nsd-checkconf overrun. 820 - Bugfix #343: nsdc update fix. 821 - Bugfix #347: Wrong NSEC3 returned for nodata response QTYPE=DS no delegation. 822 - Bugfix: Allow for huge amount of strings in TXT (and other) records. 823 - Bugfix: nsdc can now deal with tsig algorithms other than hmac-md5. 824 - Fixed several parts in the documentation, including #306, #345. 825 8263.2.6 827============= 828 829BUG FIXES: 830 - Bugfix #314: correctly print NSEC next field, escape spaces and 831 fix label overflows. 832 833FEATURES: 834 - Expand command line option '-a' and config option 'ip-address:' 835 with port number. 836 837OPERATIONAL NOTES: 838 - Configure options --disable-dnssec, --disable-nsid, --disable-tsig 839 are removed. 840 - Configure option --max-interfaces is renamed to --max-ips. 841 8423.2.5 843============= 844BUG FIXES: 845 - NSD will not start if chroot is configured, but changing root is 846 not possible (it used to ignore the badly configured chroot). 847 - Make use of the more secure strl* functions. 848 - Bugfix #303: spelling error. 849 850FEATURES: 851 - New option 'nsid:', to specify the NSID (Bugfix #298). 852 - The default chroot can be set with --with-chroot=<dir>. 853 If not set, by default chroot will not be used (thanks Jakob Schlyter). 854 - Optimized zonec and b64_pton compatibility code (thanks Martin Svec). 855 - Optimized memory allocations. Use mmap/munmap instead of malloc/free. 856 Experimental, by default off. Enable it at build time with 857 --enable-mmap (thanks Martin Svec). 858 859OPERATIONAL NOTES: 860 - NSID support is now enabled by default. 861 8623.2.4 863============= 864BUG FIXES: 865 - Bugfix #269: Additional C99 syntax. 866 - Bugfix #276: Zonec prints debug data to stderr. 867 - Bugfix #286: Document verbosity levels in nsd.conf manual page. 868 - Bugfix #288: Ignore SIGHUP to child processes. 869 - Fix typo in include file for setusercontext. 870 871FEATURES: 872 - Support DLV records. 873 - New option 'tcp-query-count:', to limit the maximum number of 874 DNS queries on a single tcp connection. 875 - New option 'tcp-timeout:', to override the default tcp timeout. 876 The default can also be set at build time, --with-tcp-timeout=<number>. 877 - New option 'notify-retry:', to configure how many times NSD should retry 878 a NOTIFY message. 879 - New options 'ipv4-edns-size:' and 'ipv6-edns-size:'. to set your preferred 880 EDNS buffer size. 881 882OPERATIONAL NOTES: 883 - UDP/IPv4 sockets have new options set that will disable the DF flag in IP 884 packets. 885 8863.2.3 887============= 888BUG FIXES: 889 - Bugfix #236: Allow RRs before the SOA in a zonefile. 890 - Bugfix #249: Remove the C99 code. 891 - Bugfix #253: Don't put NS RRs in a response with QTYPE=DNSKEY. 892 - Bugfix #263: Make TSIG algorithm comparison case insensitive. 893 - Bugfix #266: Build failed on systems without strptime. 894 - Bugfix: install hickup. 895 - Fix to use 4096 EDNS limit for IPv6 on Linux. 896 8973.2.2 898============= 899BUG FIXES: 900 - Off-by-one buffer overflow fix while processing the QUESTION section. 901 - Return BADVERS when NSD does not implement the VERSION level of the 902 request, instead of 0x1<FORMERR>. 903 - Bugfix #234. 904 - Bugfix #235. 905 - Reset 'error occurred' after notifying an error occurred at the $TTL or 906 $ORIGIN directive (Otherwise, the whole zone is skipped because the 907 error is reset after reading the SOA). 908 - Minor bugfixes. 909 9103.2.1 911============= 912OPERATIONAL NOTES: 913 - NSD will now fallback to AXFR, only if the master does not support IXFR. 914 - You can adjust nsdc patch to skip textfile patching. This will 915 increase the patching process, but will not output to zonefiles 916 anymore. By default, this is off. 917 918BUG FIXES: 919 - When configuring, don't do strptime test when cross-compiling. 920 - Bug #230: Output non-error messages to stdout. 921 - Better error message when ixfr.db old file format is read. 922 - Bug #218: shared UDP query for all interfaces. 923 - Bug #222: Remove bashism from nsdc script. 924 - Nicer check for SHA-256 functionality. 925 - Fixed some minor memory leaks that occurred on reload. 926 - nsdc: check if a lockfile has not gone stale, when lock failed. 927 - Bugfix strptime compatibility function 928 929FEATURES: 930 - New configuration option 'allow-afxr-fallback', "yes" by default. If 931 set to "no", NSD will never do AXFR fallback, even if the master 932 does not support IXFR. 933 - Allow file rotation on nsd.log. 934 - The new nsd-patch options -s and -o allows you to skip writing 935 zonefiles and store the output directly to a database file, 936 respectively. 937 9383.2.0 939============= 940OPERATIONAL NOTES: 941 - Format of ixfr.db has changed. When you are planning an upgrade to the 942 new NSD release, make sure to process the old ixfr.db before starting 943 the new release (by running nsdc patch). 944 - IXFR is transmitted over TCP by default instead of UDP. If you want to 945 continue the use of IXFR/UDP, please modify your zone configuration 946 file to: 947 request-xfr: UDP 1.2.3.4 tsigkey 948 We strongly recommend to enable TSIG if you send IXFR over UDP. 949 When all masters fail to transmit IXFR/UDP, slave will fallback to 950 IXFR/TCP and eventually AXFR/TCP. 951 - nsd-patch prints errors to stderr instead of stdout. 952 953BUG FIXES: 954 - Only normalize dnames in rdatas when rrtype is listed in RFC 4034, 955 section 6.2: Canonical RR Form, following 956 draft-ietf-dnsext-dnssec-bis-updates (affects RRSIG and NSEC records). 957 - Typo in zonec manpage. 958 - Bugfix in log_finalize. 959 - Fix race condition between nsdc patch and server reload. 960 961FEATURES: 962 - AXFR/TCP fallback in case of failing IXFR zone transfers. 963 - RFC 4635: support for hmac-sha1 and hmac-sha256 TSIG algorithm 964 identifiers, "Bugfix #130". 965 - Configure the source ip-address for notifies (master) and zone 966 requests (slave) in nsd.conf, "Bugfix #148". 967 - nsd-notify and nsd-xfer allow you to configure the outgoing 968 hostname and source port, in addition to the source address. 969 - Additional debug and verbose log messages. 970 9713.1.1 972============= 973BUG FIXES: 974 - Try to avoid race conditions with NSD reloading and nsdc running, 975 by writing pidfile before closing old parent process. 976 - Fixed NSEC3 memory leak in the case NSEC3 is not needed. 977 - Fixed some memory leaks that happened on error, mostly on 978 zone transfer errors. 979 - Bugfix #191: nsd-checkconf allowed only (max_interfaces-1) interfaces. 980 981FEATURES: 982 - The number of maximum interfaces allowed is configurable with 983 --with-max_interfaces=<number> (thanks John Lightsey). 984 9853.1.0 986============= 987OPERATIONAL NOTES: 988 - Default locations of nsd.db, ixfr.db & xfrd.state are changed to 989 the /var/db/nsd directory. 990 991BUG FIXES: 992 - Zone compiler gives more sane error messages when out of 993 diskspace and bug #172: when compiling single zone file. 994 - Changed man pages format from mdoc to mansun, to support the Solaris OS. 995 - Log tcp read error only when connection not reset by peer or when 996 verbosity level is high. 997 - RRs are compared without checking the TTL value. 998 999FEATURES: 1000 - NSD is now NSEC3 enabled by default. You can disable it by configuring 1001 NSD with --disable-nsec3. 1002 - Added "hide-version" configuration setting. Enabling this feature 1003 stops NSD from answering to CHAOS class version requests. 1004 - Added bind2nsd 0.5.0 (http://bind2nsd.sourceforge.net) in contrib/. 1005 - Report source and zone for denied AXFR attempts. 1006 10073.0.8 1008============= 1009FEATURES: 1010 - Better logging for nsd-notify (show 'broken' zone) 1011 - Add configuration for chkconfig to control nsd service. 1012 1013BUG FIXES: 1014 - Fixed nsdc start when nsd already running: do not initialize server, 1015 since it is already running. 1016 - Fixup bug where data related files are looked up in the wrong 1017 directory when chrooted with chrootdir ending with a slash. 1018 - Fixup bug where nsd would return FORMERR if received an edns 1019 query with version set to zero and rdlen larger than zero. 1020 - Fixed strptime, so that zonec will also work on systems with broken 1021 strptime (like leopard :-)) 1022 - Do not answer nsec3 wildcard information when DO bit is not set 1023 - Better logging when creating database failed. 1024 - Various spelling errors 1025 10263.0.7 1027============= 1028BUG FIXES: 1029 - Error handling for malformed IXFRs improved. 1030 - Fixed man pages, consistent syntax. 1031 10323.0.6 1033============= 1034FEATURES: 1035 - Report source and zone for denied AXFR attempts. 1036 1037BUG FIXES: 1038 - More elegant handling of malformed nsec3 records from a zone 1039 transfer. 1040 - Fixup ignored return value in region-allocator. 1041 - Added bind2nsd 0.5.0 (http://bind2nsd.sourceforge.net) in contrib/. 1042 10433.0.5 1044============= 1045BUG FIXES: 1046 - Fixed problem with reload waiting very long. If the OS has a 1047 raging herd problem, NSD could block in a UDP operation and 1048 that process would stop reload from finishing. Made UDP sockets 1049 nonblocking. 1050 - Made TCP listen sockets nonblocking. NSD could block in accept. 1051 - Handle the new CERT RDATA types defined in RFC 4398 (submitted by 1052 Mans Nilsson). 1053 - Fixed a bug where zonec would choke on unknown CERT RDATA types. 1054 - Change nsd-notify retry timer from linear into exponential 1055 backoff (submitted by Mans Nilsson). 1056 - Debug flag (-d) behavior changed. Nsd now also forks children when 1057 run in debug mode. 1058 - Added verbosity mode (-V <level>) for extra operational logging. 1059 - zonesdir default is /etc/nsd. This can be overridden in nsd.conf. 1060 - if clients drop the tcp connection this does not result in a logfile 1061 entry, unless verbosity is set 2 or more. 1062 10633.0.4 1064============= 1065BUG FIXES: 1066 - zonec will print an error when other data is put next to a CNAME. 1067 - Fixup unaligned memory access that could occur when reading ixfr.db 1068 with a partial transfer inside. 1069 - Fixup for the WKS RR type printout by nsd-patch and nsd-xfer. 1070 - Error message 'could not read database CRC' now only given on error. 1071 - ./configure --zonesdir=<directory for zone files> now works to 1072 set a default value for the zonesdir: <dir> nsd.conf directive. 1073 Set zonesdir: "" to disable the change of directory. 1074 - Bug: reload crashes with log message 'continuing with old database', 1075 and after that no more zone updates. Manual fix is to kill -HUP, 1076 but now fixed in software to try to reload again (and again). 1077 - Small speedup where xfrd could briefly be busy-waiting. 1078 - If master sends IXFR with glue that is already present in the zone 1079 this is silently accepted. Printed in debug mode -L 2. To make 1080 the log file smaller. 1081 - Exponential backoff for zones that never worked to max of 4 hours. 1082 For expired zones the SOA retry values are used. 1083 - allow-notify acl entries 'NOKEY' match only queries without TSIG. 1084 - Answers to valid notifies contained wrong RR counts in the header. 1085 The notifies were processed correctly, but now the acknowledgement 1086 reply is in correct DNS format. 1087FEATURES: 1088 - Added contrib/nsd.zones2nsd.conf python script to convert NSD 2 to 1089 NSD 3 config files, contributed by Stephane Bortzmeyer. 1090 - The nsdc control script will print 'nsd startup failed' if the nsd 1091 executable does not start (due to bad permissions, bad config, ...). 1092 10933.0.3 1094============= 1095BUG FIXES: 1096 - Bug #152: NSD would not use the identity from nsd.conf, fixed. 1097 - Bug #153: When running with thousands of secondary zones, NSD would 1098 run out of UDP sockets. Caused crash on FreeBSD, errors on Linux 1099 ('out of file descriptors'), depending on ulimits. Fixed. 1100 - Fixed getaddrinfo error message to be more descriptive. 1101 - Fallback to ip4 if getaddrinfo fails for ip6. 1102 - Will no longer lose a notify message during reloads (IPC). 1103 - Will no longer lose transfer in progress when notified for that zone. 1104 - Nicer error when operator forgets to rebuild after deleting a zone. 1105 11063.0.2 1107============= 1108BUG FIXES: 1109 - Nice error from zonec on a wrong configuration zone name. 1110 - Nicer warning from zonec when starting secondary zone with 1111 no zone file for the first time. 1112 - nsdc makes more portable use of 'which' (for SunOS5.9/bash2.05). 1113 - Bug #143: Improved handling of zonesdir: directive and relative 1114 pidfile, database, diff file, xfrdfile paths in nsdc.sh and 1115 nsd-patch. They would not find the files. 1116 - Bug #144: LOC RRtype default values for precision wrong. Fixed. 1117 - Bug #145: NSD failed to reload cases of simultaneous zone transfer. 1118 - Bug #146: NSD fails to write to xfrdfile when chrooted. Fixed. 1119 Also fix for difffile when chrooted. 1120 - Bug #147: NSD runs out of memory. Fixed, memory is reused. 1121 Occurred when running NSD with very big zones and large updates. 1122 - nsd -L 1 logging is smaller, -L 2 contains all debug information. 1123 (only available for debug compiles). 1124 - Bug #149: Fixed text for NOTAUTH error code. When notify is not 1125 authorised REFUSED error code returned instead. 1126 11273.0.1 1128============= 1129BUG FIXES: 1130 - nsd-patch prints SOA record at start of zone files. 1131 11323.0.0 1133============= 1134FEATURES: 1135 - AXFR/IXFR zone transfer supported. 1136 - NSD requests but does not provide IXFR transfers. 1137 - NSD keeps track of SOA timeouts for secondary zones. 1138 - TSIG authentication supported. 1139 - For queries, for notifies, for zone transfers. 1140 - NOTIFY messages of zone updates, incoming and outgoing. 1141 - DNAME type is supported, including CNAME synthesis. 1142 - config file, nsd.conf(5), place to put TSIG keys, server settings, 1143 and lists of ip-addresses/ranges for AXFR/IXFR and NOTIFY. 1144 - prepared for NSEC3 (--enable-nsec3), experimental code for testing 1145 in workshops. 1146 - prepared for NSID (--enable-nsid), experimental code for testing in 1147 workshops. 1148 1149OPERATIONAL NOTES: 1150 - config file needed, nsd.conf(5) supersedes nsd.zones and nsdc.conf. 1151 - AXFR transfers are denied by default. Allow in config file. 1152 - Zones only become secondary with "request-xfr:" items in config file. 1153 - NSD produces "ixfr.db" file with a journal of zone transfers. 1154 Use nsdc patch to merge changes back to zone files and remake db. 1155 - NSD produces "xfrd.state" file with zone timeout information. 1156 The file is text formatted. 1157 - NSD sends notifies automatically, 1158 nsd-notify is deprecated and will be removed from the package. 1159 - NSD requests AXFR/IXFR and reloads the updates automatically, 1160 nsd-xfer is deprecated and will be removed from the package. 1161 - Check your config file with nsd-checkconf. 1162 1163BUG FIXES: 1164 - contains all bug fixes from 2.3.5 and before. 1165 - The sighandler() bug is fixed more thoroughly, 1166 by using pipes for interprocess communication. 1167 - CNAMEs are followed by the server to different zones and 1168 information from that zone is returned. This saves a followup 1169 query. 1170 - bug fixes (ported) 2.3.6. 1171 - nsd-notify will retry max 15 times 5 second retries. 1172 - Bug #105: nsdc lacks locking, fixed locking for root user. 1173 - Bug #134: nsd: make -N <large number> work again 1174 - Bug #135: Typo in locking code for nsdc, fixed. 1175 - uninitialised variable fixed. 1176 - unaligned memory access (on Solaris SPARC), in zonec 1177 LOC parsing, fixed. 1178 - Bug #138: nsd aborts trying to bind all interfaces if ip6 1179 is not enabled, instead it will fallback to ip4. 1180 - Bug #139: resync timer for stats to whole minute. 1181 - Bug #140: NSD did not clear CD bit on authoritative answers. 1182 - Bug #141: NSD did not clear flags on a formerror reply. 1183 11842.3.5 1185============= 1186BUG FIXES: 1187 - Bug #132: regression, nsd: fix compile with --disable-ipv6 1188 - Makefile: remove gnuisms 1189 11902.3.4 1191============= 1192BUG FIXES: 1193 - Unknown type codes for type code numbers > 48 and < 97 work again. 1194 (this implies --enable-checking can be enabled again) 1195 - nsd: sighandler() fixes 1196 - Bug #118: nsd: nsd_notify waits for a response. Will retry the notify 1197 after a timeout. 1198 - Bug #124: $(DESTDIR) was added to Makefile.in. 1199 - Bug #128: zonec: parser can handle \\ at the end of a string. 1200 - zonec: lexer: add \r to the newline delimeter 1201 - zonec: use strtol with an explicit base 10 as parameter. 1202 (Scott Rose, Roy Arends) 1203 - nsd-xfer: print human readable error codes. Change logging to 1204 be more in line with the rest 1205 12062.3.3 1207============= 1208BUG FIXES: 1209 - Apply the correct patch to nsdc.sh.in. 1210 12112.3.2 1212============= 1213FEATURES: 1214 - Bug #101: add support for the SPF record. 1215 1216BUG FIXES: 1217 - Bug #100: replaced non-portable use of timegm(3) with 1218 portable implementation (mktime_from_utc). 1219 - Bug #103: nsd: trim the SOA's TTL to the MINIMUM value when returning a 1220 negative answer. 1221 - Bug #104: nsd: add a time_t timestamp to the log when logging to 1222 a file. 1223 - Bug #105: nsdc: use a lock file when rebuilding the database (patch by 1224 Jakob Schlyter/Ted Lindgreen/Sebastian/Ondrej Sury). 1225 - Bug #106: zonec: don't walk all 256 NSEC windows when that is not 1226 needed. 1227 - Bug #107: zonec: fixed a crash when encountering bad unknown rdata. 1228 - nsd: Don't print: "error: nsd is already running as <pid>, stopping" 1229 when in fact NSD continues to run. 1230 - nsd: Minimize the race window in sig_handler(). 1231 12322.3.1 1233============= 1234BUG FIXES: 1235 - zonec: Don't crash when generating error messages outside of zone 1236 files. 1237 - nsd: when logging to a file the pid is now printed. 1238 - nsd: Reset 'boot' time in statistics when reloading the database, 1239 since the statistics are reset to 0 on a reload. 1240 - nsd-xfer.c: Added '-a' option to specify local address to connect 1241 from. Original patch supplied by Walter Hop <nsd@walter.transip.nl>. 1242 - Bug #98: Allow mnemonics for DS and RRSIG algorithm field. 1243 12442.3.0 1245============= 1246FEATURES: 1247 - DNSSEC is now enabled by default. NSD should be fully 1248 compliant with RFC4033, RFC4034, and RFC4035. 1249 1250BUG FIXES: 1251 - nsd: Ensure that the number of -a flags does not exceed the 1252 maximum specified by MAX_INTERFACES in config.h. 1253 - nsd-xfer: Use serial number arithmetic (RFC1982) for the 1254 zone serial check 1255 - nsdc: Don't pass (fake) serial number to nsd-xfer if the 1256 zone file does not exist. 1257 - zonec: Loading many zones would cause namedb_find_zone to 1258 slow down, performance patch by Kazunori Fujiwara. 1259 - Bug #96: nsd-xfer did not handle 8-bit domain names 1260 correctly. 1261 12622.2.1 1263============= 1264FEATURES: 1265 - The message priority is now included when logging to a file. 1266 1267BUG FIXES: 1268 - Zero length RDATA using the unknown RR notation was not 1269 working (except for the APL RR type). 1270 - Bug #93: './configure' error message containing a comma must 1271 be properly bracketed. 1272 - Bug #94: nsd-xfer: Handle unexpected EOF when receiving AXFR 1273 data. Timeout if no data is received for more than 120 1274 seconds (see the TCP_TIMEOUT parameter in config.h). 1275 - Bug #95: An owner starting with an asterisk label ("*") was 1276 being treated as its own wildcard child. 1277 12782.2.0 1279============= 1280FEATURES: 1281 - nsd-xfer: replacement program for named-xfer to perform zone 1282 transfers using AXFR. TSIG is supported by nsd-xfer but not 1283 yet by the nsd server. DNSSEC is also supported. TSIG 1284 requires OpenSSL version 0.9.7 or higher, configure using 1285 --disable-tsig if you do not have OpenSSL installed. 1286 Configure using --with-ssl=path if OpenSSL is not installed 1287 at a standard location. 1288 1289CODE CHANGES: 1290 - New data structure 'buffer_type' for representing binary 1291 buffers that can be read, written, and resized. Data in 1292 these buffers is stored in network byte order. This data 1293 structure replaces the iobuf field of 'struct query'. 1294 1295BUG FIXES: 1296 - Fixed endian problem in WKS record. 1297 - Protocol can now be specified numerically in WKS record. 1298 - Allow escape sequences (\DDD) in TTL, RR class, and RR type. 1299 - The zone compiler now accepts many more characters in 1300 unquoted strings such as domain name labels. The characters 1301 no longer need to be escaped with a backslash. 1302 - Close included files after reading. 1303 - Maximum TCP message size is now 65535 bytes. AXFR response 1304 packets are still limited to 16383 bytes for optimal 1305 compression of dnames. 1306 - The TSIG key for AXFRs can now also be stored in the file 1307 <zonename>.tsiginfo. This makes it possible to use TSIG 1308 with multiple master servers. 1309 - Signals are no longer blocked while performing I/O so the 1310 server should respond quicker to signals. 1311 - Fixed parsing of LOC rdata. Fractions and altitude were not 1312 handled correctly. 1313 13142.1.5 1315============= 1316BUG FIXES: 1317 - Bug #90: handle \000 in TXT records correctly 1318 - Fixed undefined behavior in the use of vsnprintf when 1319 logging messages. This caused crashes on Linux/PPC. 1320 13212.1.4 1322============= 1323BUG FIXES: 1324 - nsdc: Fixed a typo that caused AXFRs to stop working. 1325 13262.1.3 1327============= 1328FEATURES: 1329 - nsd: The pidfile can be specified using the '-P' option. 1330 1331BUG FIXES: 1332 - Bug #87: allow @ in the rdata 1333 - Bug #88: allow ::FFFF:ipv4addr in AAAA records 1334 - Bug #89: Count the number of queries received over TCP, 1335 instead of the number of TCP connections. 1336 - Zonec: when - is used as input, set the filename to 'STDIN'. 1337 - The nsdc script handles failed AXFRs more gracefully. 1338 - NSD emits an error when it sees bitlabels (RFC 2673). 1339 - Only copy the CD bit when DNSSEC is enabled. 1340 13412.1.2 1342============= 1343FEATURES: 1344 - NSD now fully supports unknown record types using the 1345 notation specified in RFC3597. 1346 - Support for the following RR types has been added: WKS, X25, 1347 ISDN, RT, NSAP, PX, NAPTR, KX, CERT, DNAME, and APL. DNAME 1348 special processing is not supported. 1349 1350BUG FIXES: 1351 - Bug #84: NSD now uses SIGUSR1 instead of SIGILL to report stats. 1352 - Bug #85: Support for WKS records. 1353 - Bug #86: The characters "#%&^[]?" can now be used without 1354 backslash in zone file domain names. 1355 - Plugin callback return type fixed. 1356 - The maximum message length for IPv6 UDP packets is now 1357 limited to the IPv6 minimum MTU (1280) unless the 1358 IPV6_USE_MIN_MTU socket option is supported. 1359 13602.1.1 1361============= 1362BUG FIXES: 1363 - Bug #81: Handle unknown types correctly. 1364 - Bug #82: Zonec: don't report "0 errors" unless -v is 1365 specified. 1366 - Bug #83: Close zone files after parsing. 1367 - Handle AFSDB RR type. 1368 13692.1.0 1370============= 1371FEATURES: 1372 - New networking code allows a single server to handle both 1373 UDP and TCP connections. By default up to 10 simultaneous 1374 TCP connections are supported. Use the '-n' flag to change 1375 the default. 1376 13772.0.2 1378============= 1379BUG FIXES: 1380 - Allow the use of a mnemonic for the algorithm field of a 1381 DNSKEY record. 1382 - Behavior of the zonec -v flag has been modified. By default 1383 zonec will only print a single line with a summary of the 1384 error count. 1385 - Bug #75: Fixed typo in previous "fix". 1386 13872.0.1 1388============= 1389BUG FIXES: 1390 - Queries for QTYPE DS (DNSSEC) were not handled correctly in 1391 certain cases. 1392 - Partial support for unknown RRs. Known RR types with 1393 unknown RR data format is not yet supported. 1394 - Bug #75: Fixed bad error message when nsdc update is run for 1395 the first time. 1396 - Bug #78: Multiple zones, each with include directives, are 1397 now compiled correctly. 1398 13992.0.0 1400============= 1401FEATURES: 1402 - Experimental DNSSEC support implemented, but disabled by 1403 default. Enable using the --enable-dnssec configuration 1404 option. 1405 - IPv6 enabled by default. Disable using the --disable-ipv6 1406 configuration option. 1407 1408BUG FIXES: 1409 - Bug #47: Domain name is now logged when a notify is 1410 received. 1411 - Bug #70: First include all A records in the additional 1412 section, followed by AAAA records. 1413 - Bug #77: Check length of domain name and label. 1414 - LOC records are supported again. 1415 14161.4.0-alpha1 1417============= 1418FEATURES: 1419 - New database format that is much more compact and portable 1420 across architectures. 1421 - The new zone compiler is now the default and the old zone 1422 compiler has been removed. 1423 - Name compression is done dynamically, removing one other 1424 difference with BIND in the responses generated (the full 1425 query name is now used for compression). 1426 - CNAME target records are now generated from wildcard 1427 records if necessary. 1428 1429REGRESSIONS: 1430 - mmap(2) isn't currently supported. 1431 - Not all RR types are supported by zonec (such as LOC). 1432 14331.3.0-alpha1 1434============= 1435FEATURES: 1436 - New name lookup algorithm. This required a change to the 1437 database format. Performance should increase at the expense 1438 of database size and memory usage. 1439 - New zone compiler (zonec2) based on flex and yacc, fully RFC 1440 compliant (still in alpha). 1441 - Database can be loaded using mmap(2) (use the --enable-mmap 1442 configure option to enable). This is useful on operating 1443 systems such as Solaris that do not allow memory overcommit. 1444 - Region based memory allocation and resource management. 1445 - New internal format for storing domain names. Each dname 1446 now includes an array of label offsets within the domain 1447 name. 1448 - Updates to the plugin API. 1449 1450BUG FIXES: 1451 - Bug #65: The syslog facility is now a compile time option 1452 (--with-facility=FACILITY). The default facility is DAEMON. 1453 - Bug #66: Automatic periodic dumping of the statistics (using 1454 the -s option) is now continued after a database reload. 1455 14561.2.4 1457============= 1458BUG FIXES: 1459 - Bug #72: If an RRset for a child domain is defined before 1460 the RRset of the parent domain the parent's RRset would be 1461 "lost". 1462 14631.2.3 1464============= 1465BUG FIXES: 1466 - Bug #65: The syslog facility is now a compile time option 1467 (--with-facility=FACILITY). The default facility is DAEMON. 1468 - Bug #66: Automatic periodic dumping of the statistics (using 1469 the -s option) is now continued after a database reload. 1470 - NSD would try to kill pid -1 on startup if forking of a child 1471 process failed. 1472 - Do not log EAGAIN errors on calls to recvfrom. These errors 1473 should be harmless. 1474 14751.2.2 1476============= 1477BUG FIXES: 1478 - Bug #59: NSD returns FORMERR when the query name is >= 246 1479 bytes. 1480 - Bug #60: Zonec runs out of file descriptors with many zones. 1481 - Bug #61: nsdc uses /bin/sh hardwired (and should not). 1482 - Bug #62: NSD is not able to log to a file. 1483 - Bug #63: nsdc update and zonec are too talkative. 1484 - Bug #64: Answer for request of a host resolved by a 1485 wildcard-resource-record is not understandable by dig. 1486 14871.2.1 1488============= 1489BUG FIXES: 1490 - AXFR terminates early if a zone contains a CNAME pointing 1491 the the zone's domain name (SOA record) (bug #56). 1492 - During an AXFR memory above the top of the stack was 1493 accessed. This could lead to occasional AXFR errors (bad 1494 packets). 1495 - NSD now prints its version number and exits when invoked 1496 with the -v flag (bug #57). 1497 - NSD prints help information and exits when invoked with the 1498 -h flag. 1499 15001.2.0 1501============= 1502FEATURES: 1503 - NSD is now a single parent process (handling child 1504 termination and database reloads) plus multiple UDP and TCP 1505 child processes handling queries. Before the parent process 1506 also handled UDP queries. This change simplifies the parent 1507 and child processes and allows the use of multiple 1508 concurrent UDP servers. 1509 - Experimental plugin support. This required a minor, 1510 incompatible change to the database format. Make sure you 1511 recompile your database. Use --enable-plugins to enable. 1512 - Full IPv6 support (for multi-homing and for Linux, thanks to 1513 Colm MacCárthaigh and Jun-ichiro itojun Hagino). Use 1514 --enable-ipv6 to enable. 1515 - Support for multi-homing with TCP connections. 1516 - Support for SunOS 4.x has been dropped. 1517 1518CODE CHANGES: 1519 - NSD should now conform to the Single Unix Specification 1520 (http://www.unix.org/). 1521 - Const correctness for strings and some other data types. 1522 - Removed code for Berkeley DB, hash tables, and mmap(2). 1523 - Separate preprocessor flags from code flags (CPPFLAGS and 1524 CFLAGS). 1525 - Use uint8_t instead of u_char, uint{16,32}_t instead of 1526 u_int{16,32}_t. 1527 - Fixed warnings from mixing signed and unsigned types. 1528 - Use sigaction(2) instead of signal(2). 1529 - The query_process function has been split up for clarity. 1530 1531BUG FIXES: 1532 - CHAOS TXT queries failed on big-endian machines. 1533 - Portability fixes for Tru64 (thanks to Stephane Bortzmeyer), 1534 HP-UX, and MacOS X (thanks to Ronald van der Pol). 1535 - Removed compile time limit on maximum number of TCP child 1536 servers. 1537 - Support for debugging UDP and TCP queries. 1538 - Always ensure there is enough room for the EDNS record when 1539 answering a query with EDNS enabled. 1540 15411.1 1542============= 1543FEATURES: 1544 - ANSI C 1545 - autoconf/configure 1546 - new parser 1547 - support for various RR types in zonec 1548 - support for UNKN RR types 1549 1550BUG FIXES: 1551 - lots of zone parsing errors eliminated 1552 - empty node matching bug gives NXDOMAIN 1553 15541.0.3 1555============= 1556This release is a bug fix release and does not add any new features. 1557 1558BUG FIXES: 1559 - Ignore SIGPIPE errors (bug #43). 1560 - Keep track of TCP child servers and restart if necessary. 1561 (bug #55) 1562 - Handle database reload failures correctly. 1563 - Close UDP sockets in TCP child servers. 1564 - Handle escaped characters (besides \.) in labels. 1565 - Preserve the query's RD flag in the answer. 1566 15671.0.2 1568============= 1569FEATURES: 1570 - -DBIND8_STATS to enable bind8 like [NX]STATS 1571 - -t flag to make nsd chroot to a certain directory 1572 - -s flag to make nsd produce statistics every s seconds 1573 - /etc/nsd/nsdc.conf to overwrite default variables 1574 for nsdc.sh 1575 - less loggin and more radical tcp connection (mis)handling 1576 - prefork -n processes to handle tcp connections 1577 - multiple -a flags 1578 1579CHANGES: 1580 - named.stats file functionality is removed 1581 1582BUG FIXES: 1583 - couple of pedantic fixes in C code 1584 - last zone in database axfr bug fixed 1585 - nsdc update wont update bug fixed 1586 15871.0.1 1588============= 1589 1590FEATURES: 1591 - NSD drops permissions after binding the sockets 1592 - ``cache'' zones are no longer allowed 1593 - ID.Server & Version.Server compile time options 1594 - AXFR implemented (with tcpwrapper for access control) 1595 - nsdc update and nsdc notify functionality 1596 - using named-xfer with TSIG for inbound axfr 1597 1598 1599CHANGES: 1600 - the order of records in the database is from now 1601 on significant 1602 - since Berkeley DB doesnt define order for sequential 1603 access it is no longer supported 1604 1605BUG FIXES: 1606 - white space problem in zonec is fixed 1607 1608KNOWN BUGS: 1609 - please see appropriate man pages for the known bugs 1610 16111.0.0 RELEASE 1612============= 1613 1614KNOWN BUGS: 1615 1616- Although NSD allows one to configure a zone without SOA record and 1617 use it as so called ``cached'' non-authoritative data, it is decided 1618 that having this functionality is wrong, dangerous and will be removed 1619 from the further versions. 1620 1621- If while processing EDNS(0) OPT record NSD encounters bad EDNS(0) 1622 version it will answer with Format Error instead of EDNS(0) BADVERS 1623 1624PLATFORMS: 1625 1626 Tested and working on i386 FreeBSD-4.4, i386 Linux, dec alpha Linux, 1627 sparc SunOS 4.x 1628 1629 16301.0.0-BETA2 1631=========== 1632 1633FIXES: 1634 - wildcards bug fixed 1635 - AA bit for class ANY bug fixed 1636 - minor coredumps with really broken zones in zonec fixed 1637 - linux & SunOS port 1638 16391.0-ALPHA2 1640========== 1641FIXES: 1642 - IPv6 transport support added by Jun-ichiro itojun Hagino (Use -DINET6) 1643 - Makefile modified for easier compile time configuration 1644 - EDNS(0) bug fixed 1645 - Default database changed to all lowercase, red-black tree to make nsd 1646 DNSSEC ready 1647 - REQUIREMENTS are cleaned up and updated 1648 - Signal names changed in nsdc.sh.in 1649 - Default compile options dont include -DMIMIC_BIND8 1650