NSD RELEASE NOTES
3.2.15
================
FEATURES:
- Support for ILNP RR types: NID, L32, L64, LP (RFC6742).
- RRL, --enable-ratelimit at configure time and config options.
- TSIG initialization only fails when there is no digest found
at all.
BUG FIXES:
- Bugfix #478: Declaration after statement (for gcc 2.95).
- Bugfix #483: Better error message in case of TSIG error.
- Bugfix #485: TTL should not be greater than 2^31 - 1.
- Fix RCODE when CNAME loop final answer does not exist, should
return NXDOMAIN as stated by RFC 6604.
- Fix --disable-full-prehash bug, where after multiple incoming
IXFRs, NSEC3 can be removed unjustified.
3.2.14
================
FEATURES:
- TCP writev support.
BUG FIXES:
- Fix build on OpenBSD (thanks Oliver Peter).
- Prioritize notify sender for requesting XFR (thanks Ilya Bakulin).
- Fix crash in zonec if TXT string too long (thanks Ilya Bakulin).
- tzset before chroot for correct timezone (thanks Camiel Dobbelaar).
- Fix --disable-full-prehash bug when nsdc patch happens while ixfr too,
it did not rehash the new database.
- Bugfix #464: Conditionally define MAXHOSTNAMELEN.
3.2.13
================
BUG FIXES:
- Fix for nsd-patch segfault if zone has been removed from nsd.conf
(thanks Ilya Bakulin).
- Bugfix #460: man page correction - identity.
- Bugfix #461: NSD child segfaults when asked for out-of-zone data
with --enable-zone-stats. [VU#517036 CVE-2012-2979]
3.2.12
================
BUG FIXES:
- Fix for VU#624931 CVE-2012-2978: NSD denial of service
vulnerability from non-standard DNS packet from any host
on the internet.
http://www.nlnetlabs.nl/downloads/CVE-2012-2978.txt
3.2.11
================
FEATURES:
- Fallback to AXFR if IXFR is unknown at the primary. NSD considers
IXFR unknown at the primary if there is a negative response for the
IXFR RRtype. This does not override the value for
'allow-axfr-fallback'.
- Allow for reading in new DNSKEY algorithm mnemonics (RFC5155,
RFC5702, RFC5933, and RFC6605 (ECDSA)).
- Zone statistics, enable with --enable-zone-stats. This stores the
BIND8 stats per zone in a configurable statistics file. This option
does not scale and should therefore not be enabled when serving
many zones.
- Support for TLSA RRtype (DANE).
BUG FIXES:
- Fix for qtype ANY for a wildcard domain in NSEC signed zone: Don't
add the wildcard domain NSEC into the answer section. Instead,
put the wildcard expanded NSEC into the answer section and keep the
wildcard domain NSEC in the authority section.
- Fix for accept spinning reported by OpenBSD.
- Fix restart failed due to bad ixfr packet because of zone removed
from nsd.conf.
- Bugfix #453: typo in nsdc man page.
OPERATIONAL NOTES:
- NSD uses the query name for dname compression again (Fix #235
had as side effect that this didn't happen anymore and is hereby
undone).
3.2.10
================
BUG FIXES:
- Bugfix #421: Truncate pidfile on shutdown, before unlink.
- Bugfix #423: Fix slow zone transfer processing due to
'Fix is_existing flag for ENT' bugfix.
- Fix bug #430: segfault when MAX_INTERFACES set to more than 65K.
- Fix configure.ac strptime check for gcc 4.6.2, acx_nlnetlabs update.
3.2.9
================
FEATURES:
- Minimize responses to reduce truncation: NSD will only add optional
records to the authority and additional sections when the response
size does not exceed the minimal response size.
The minimal response size is 512 (no-EDNS), 1480 (EDNS/IPv4),
1220 (EDNS/IPv6), or the advertized EDNS buffer size if that is
smaller than the EDNS default.
The feature is enabled by default. You can disable it by configuring
NSD with --disable-minimal-responses.
- Less NSEC3 prehashing. This will make NSD handle zone transfers
faster, but will decrease the performance of NXDOMAIN and wildcard
NODATA responses. Full prehashing is enabled by default. If you want
less NSEC3 prehashing, configure NSD with --disable-full-prehash.
Thanks Secure64 for the patch.
BUG FIXES:
- Bugfix #302: nsd accepts XFR but refuses to re-read the slave zone.
- Bugfix #365: set patch style and zonec verbose for nsdc.
- First step of bug #369: RRSIG DNSKEY sets zone to be treated DNSSEC.
- Bugfix #375: typos in nsd.conf.5.
- Bugfix #381: Binary escaped and transfers.
- Bugfix #397: Don't allow relative domain names as origin in $INCLUDE
directives.
- Fix printout of IPSECKEY by nsd-patch.
- Fix is_existing flag for ENT when domain that has a shared ENT
is deleted by IXFR. (ENT == Empty Non-Terminal)
- Fix bug if the zonefile is changed for a secondary but stored
transfers are applied, and stop it from applying ixfr to empty zone.
The zone is flagged with error and AXFR-ed.
- Fix to have no authority NS set processing for CNAMEs.
- Fix nsd-checkconf to check tsig algorithms properly.
- Set the AA bit on responses that have an authoritative CNAME.
- Fix denial of existence response for empty non-terminal that looks
like a NSEC3-only domain (but has data below it).
OPERATIONAL NOTES:
- nsd.db version number increased because NSD 3.2.7 and earlier
zonec is not compatible due to the TXT strings change. Please
run nsdc rebuild before running NSD 3.2.9 and later versions.
3.2.8
=============
BUG FIXES:
- Do setusercontext() before chroot(), otherwise login.conf etc. are
required inside chroot.
- Bugfix #216: Fix leak of compressiontable when the domain table increases
in size.
- Bugfix #348: Don't include header/library path if OpenSSL is in /usr
- Bugfix #350: Refused notifies should log client ip.
- Bugfix #352: Fix hard coded paths in man pages.
- Bugfix #354: The realclean target deletes a bit too much.
- Bugfix #357, make xfrd quit with many zones.
- Bugfix #362: outgoing-interface and v4 vs. v6 leads to spurious
warning messages.
- Bugfix #363: nsd-checkconf -v does not print outgoing-interface ok.
- Bugfix: nsd-checkconf -o outgoing-interface omits NOKEY.
OPERATIONAL NOTES:
- Use 'make clean' to clean up files that make created.
- Use 'make realclean' to also clean up files that were generated by
running ./configure.
- Use 'make devclean' to also clean up autoconf, autoheader files.
3.2.7
=============
BUG FIXES:
- Bugfix #253: Don't put NS RRs in a response with QTYPE=DS.
- Bugfix #320: use arcrandom(4) for QID generation if available.
- Bugfix #328: nsd-checkconf overrun.
- Bugfix #343: nsdc update fix.
- Bugfix #347: Wrong NSEC3 returned for nodata response QTYPE=DS no delegation.
- Bugfix: Allow for huge amount of strings in TXT (and other) records.
- Bugfix: nsdc can now deal with tsig algorithms other than hmac-md5.
- Fixed several parts in the documentation, including #306, #345.
3.2.6
=============
BUG FIXES:
- Bugfix #314: correctly print NSEC next field, escape spaces and
fix label overflows.
FEATURES:
- Expand command line option '-a' and config option 'ip-address:'
with port number.
OPERATIONAL NOTES:
- Configure options --disable-dnssec, --disable-nsid, --disable-tsig
are removed.
- Configure option --max-interfaces is renamed to --max-ips.
3.2.5
=============
BUG FIXES:
- NSD will not start if chroot is configured, but changing root is
not possible (it used to ignore the badly configured chroot).
- Make use of the more secure strl* functions.
- Bugfix #303: spelling error.
FEATURES:
- New option 'nsid:', to specify the NSID (Bugfix #298).
- The default chroot can be set with --with-chroot=<dir>.
If not set, by default chroot will not be used (thanks Jakob Schlyter).
- Optimized zonec and b64_pton compatibility code (thanks Martin Svec).
- Optimized memory allocations. Use mmap/munmap instead of malloc/free.
Experimental, by default off. Enable it at build time with
--enable-mmap (thanks Martin Svec).
OPERATIONAL NOTES:
- NSID support is now enabled by default.
3.2.4
=============
BUG FIXES:
- Bugfix #269: Additional C99 syntax.
- Bugfix #276: Zonec prints debug data to stderr.
- Bugfix #286: Document verbosity levels in nsd.conf manual page.
- Bugfix #288: Ignore SIGHUP to child processes.
- Fix typo in include file for setusercontext.
FEATURES:
- Support DLV records.
- New option 'tcp-query-count:', to limit the maximum number of
DNS queries on a single tcp connection.
- New option 'tcp-timeout:', to override the default tcp timeout.
The default can also be set at build time, --with-tcp-timeout=<number>.
- New option 'notify-retry:', to configure how many times NSD should retry
a NOTIFY message.
- New options 'ipv4-edns-size:' and 'ipv6-edns-size:'. to set your preferred
EDNS buffer size.
OPERATIONAL NOTES:
- UDP/IPv4 sockets have new options set that will disable the DF flag in IP
packets.
3.2.3
=============
BUG FIXES:
- Bugfix #236: Allow RRs before the SOA in a zonefile.
- Bugfix #249: Remove the C99 code.
- Bugfix #253: Don't put NS RRs in a response with QTYPE=DNSKEY.
- Bugfix #263: Make TSIG algorithm comparison case insensitive.
- Bugfix #266: Build failed on systems without strptime.
- Bugfix: install hickup.
- Fix to use 4096 EDNS limit for IPv6 on Linux.
3.2.2
=============
BUG FIXES:
- Off-by-one buffer overflow fix while processing the QUESTION section.
- Return BADVERS when NSD does not implement the VERSION level of the
request, instead of 0x1<FORMERR>.
- Bugfix #234.
- Bugfix #235.
- Reset 'error occurred' after notifying an error occurred at the $TTL or
$ORIGIN directive (Otherwise, the whole zone is skipped because the
error is reset after reading the SOA).
- Minor bugfixes.
3.2.1
=============
OPERATIONAL NOTES:
- NSD will now fallback to AXFR, only if the master does not support IXFR.
- You can adjust nsdc patch to skip textfile patching. This will
increase the patching process, but will not output to zonefiles
anymore. By default, this is off.
BUG FIXES:
- When configuring, don't do strptime test when cross-compiling.
- Bug #230: Output non-error messages to stdout.
- Better error message when ixfr.db old file format is read.
- Bug #218: shared UDP query for all interfaces.
- Bug #222: Remove bashism from nsdc script.
- Nicer check for SHA-256 functionality.
- Fixed some minor memory leaks that occured on reload.
- nsdc: check if a lockfile has not gone stale, when lock failed.
- Bugfix strptime compatibility function
FEATURES:
- New configuration option 'allow-afxr-fallback', "yes" by default. If
set to "no", NSD will never do AXFR fallback, even if the master
does not support IXFR.
- Allow file rotation on nsd.log.
- The new nsd-patch options -s and -o allows you to skip writing
zonefiles and store the output directly to a database file,
respectively.
3.2.0
=============
OPERATIONAL NOTES:
- Format of ixfr.db has changed. When you are planning an upgrade to the
new NSD release, make sure to process the old ixfr.db before starting
the new release (by running nsdc patch).
- IXFR is transmitted over TCP by default instead of UDP. If you want to
continue the use of IXFR/UDP, please modify your zone configuration
file to:
request-xfr: UDP 1.2.3.4 tsigkey
We strongly recommend to enable TSIG if you send IXFR over UDP.
When all masters fail to transmit IXFR/UDP, slave will fallback to
IXFR/TCP and eventually AXFR/TCP.
- nsd-patch prints errors to stderr instead of stdout.
BUG FIXES:
- Only normalize dnames in rdatas when rrtype is listed in RFC 4034,
section 6.2: Canonical RR Form, following
draft-ietf-dnsext-dnssec-bis-updates (affects RRSIG and NSEC records).
- Typo in zonec manpage.
- Bugfix in log_finalize.
- Fix race condition between nsdc patch and server reload.
FEATURES:
- AXFR/TCP fallback in case of failing IXFR zone transfers.
- RFC 4635: support for hmac-sha1 and hmac-sha256 TSIG algorithm
identifiers, "Bugfix #130".
- Configure the source ip-address for notifies (master) and zone
requests (slave) in nsd.conf, "Bugfix #148".
- nsd-notify and nsd-xfer allow you to configure the outgoing
hostname and source port, in addition to the source address.
- Additional debug and verbose log messages.
3.1.1
=============
BUG FIXES:
- Try to avoid race conditions with NSD reloading and nsdc running,
by writing pidfile before closing old parent process.
- Fixed NSEC3 memory leak in the case NSEC3 is not needed.
- Fixed some memory leaks that happened on error, mostly on
zone transfer errors.
- Bugfix #191: nsd-checkconf allowed only (max_interfaces-1) interfaces.
FEATURES:
- The number of maximum interfaces allowed is configurable with
--with-max_interfaces=<number> (thanks John Lightsey).
3.1.0
=============
OPERATIONAL NOTES:
- Default locations of nsd.db, ixfr.db & xfrd.state are changed to
the /var/db/nsd directory.
BUG FIXES:
- Zone compiler gives more sane error messages when out of
diskspace and bug #172: when compiling single zone file.
- Changed man pages format from mdoc to mansun, to support the Solaris OS.
- Log tcp read error only when connection not reset by peer or when
verbosity level is high.
- RRs are compared without checking the TTL value.
FEATURES:
- NSD is now NSEC3 enabled by default. You can disable it by configuring
NSD with --disable-nsec3.
- Added "hide-version" configuration setting. Enabling this feature
stops NSD from answering to CHAOS class version requests.
- Added bind2nsd 0.5.0 (http://bind2nsd.sourceforge.net) in contrib/.
- Report source and zone for denied AXFR attempts.
3.0.8
=============
FEATURES:
- Better logging for nsd-notify (show 'broken' zone)
- Add configuration for chkconfig to control nsd service.
BUG FIXES:
- Fixed nsdc start when nsd already running: do not initialize server,
since it is already running.
- Fixup bug where data related files are looked up in the wrong
directory when chrooted with chrootdir ending with a slash.
- Fixup bug where nsd would return FORMERR if received an edns
query with version set to zero and rdlen larger than zero.
- Fixed strptime, so that zonec will also work on systems with broken
strptime (like leopard :-))
- Do not answer nsec3 wildcard information when DO bit is not set
- Better logging when creating database failed.
- Various spelling errors
3.0.7
=============
BUG FIXES:
- Error handling for malformed IXFRs improved.
- Fixed man pages, consistent syntax.
3.0.6
=============
FEATURES:
- Report source and zone for denied AXFR attempts.
BUG FIXES:
- More elegant handling of malformed nsec3 records from a zone
transfer.
- Fixup ignored return value in region-allocator.
- Added bind2nsd 0.5.0 (http://bind2nsd.sourceforge.net) in contrib/.
3.0.5
=============
BUG FIXES:
- Fixed problem with reload waiting very long. If the OS has a
raging herd problem, NSD could block in a UDP operation and
that process would stop reload from finishing. Made UDP sockets
nonblocking.
- Made TCP listen sockets nonblocking. NSD could block in accept.
- Handle the new CERT RDATA types defined in RFC 4398 (submitted by
Mans Nilsson).
- Fixed a bug where zonec would choke on unknown CERT RDATA types.
- Change nsd-notify retry timer from linear into exponential
backoff (submitted by Mans Nilsson).
- Debug flag (-d) behavior changed. Nsd now also forks children when
run in debug mode.
- Added verbosity mode (-V <level>) for extra operational logging.
- zonesdir default is /etc/nsd. This can be overridden in nsd.conf.
- if clients drop the tcp connection this does not result in a logfile
entry, unless verbosity is set 2 or more.
3.0.4
=============
BUG FIXES:
- zonec will print an error when other data is put next to a CNAME.
- Fixup unaligned memory access that could occur when reading ixfr.db
with a partial transfer inside.
- Fixup for the WKS RR type printout by nsd-patch and nsd-xfer.
- Error message 'could not read database CRC' now only given on error.
- ./configure --zonesdir=<directory for zone files> now works to
set a default value for the zonesdir: <dir> nsd.conf directive.
Set zonesdir: "" to disable the change of directory.
- Bug: reload crashes with log message 'continuing with old database',
and after that no more zone updates. Manual fix is to kill -HUP,
but now fixed in software to try to reload again (and again).
- Small speedup where xfrd could briefly be busy-waiting.
- If master sends IXFR with glue that is already present in the zone
this is silently accepted. Printed in debug mode -L 2. To make
the log file smaller.
- Exponential backoff for zones that never worked to max of 4 hours.
For expired zones the SOA retry values are used.
- allow-notify acl entries 'NOKEY' match only queries without TSIG.
- Answers to valid notifies contained wrong RR counts in the header.
The notifies were processed correctly, but now the acknowledgement
reply is in correct DNS format.
FEATURES:
- Added contrib/nsd.zones2nsd.conf python script to convert NSD 2 to
NSD 3 config files, contributed by Stephane Bortzmeyer.
- The nsdc control script will print 'nsd startup failed' if the nsd
executable does not start (due to bad permissions, bad config, ...).
3.0.3
=============
BUG FIXES:
- Bug #152: NSD would not use the identity from nsd.conf, fixed.
- Bug #153: When running with thousands of secondary zones, NSD would
run out of UDP sockets. Caused crash on FreeBSD, errors on Linux
('out of file descriptors'), depending on ulimits. Fixed.
- Fixed getaddrinfo error message to be more descriptive.
- Fallback to ip4 if getaddrinfo fails for ip6.
- Will no longer lose a notify message during reloads (IPC).
- Will no longer lose transfer in progress when notified for that zone.
- Nicer error when operator forgets to rebuild after deleting a zone.
3.0.2
=============
BUG FIXES:
- Nice error from zonec on a wrong configuration zone name.
- Nicer warning from zonec when starting secondary zone with
no zone file for the first time.
- nsdc makes more portable use of 'which' (for SunOS5.9/bash2.05).
- Bug #143: Improved handling of zonesdir: directive and relative
pidfile, database, diff file, xfrdfile paths in nsdc.sh and
nsd-patch. They would not find the files.
- Bug #144: LOC RRtype default values for precision wrong. Fixed.
- Bug #145: NSD failed to reload cases of simultaneous zone transfer.
- Bug #146: NSD fails to write to xfrdfile when chrooted. Fixed.
Also fix for difffile when chrooted.
- Bug #147: NSD runs out of memory. Fixed, memory is reused.
Occurred when running NSD with very big zones and large updates.
- nsd -L 1 logging is smaller, -L 2 contains all debug information.
(only available for debug compiles).
- Bug #149: Fixed text for NOTAUTH error code. When notify is not
authorised REFUSED error code returned instead.
3.0.1
=============
BUG FIXES:
- nsd-patch prints SOA record at start of zone files.
3.0.0
=============
FEATURES:
- AXFR/IXFR zone transfer supported.
- NSD requests but does not provide IXFR transfers.
- NSD keeps track of SOA timeouts for secondary zones.
- TSIG authentication supported.
- For queries, for notifies, for zone transfers.
- NOTIFY messages of zone updates, incoming and outgoing.
- DNAME type is supported, including CNAME synthesis.
- config file, nsd.conf(5), place to put TSIG keys, server settings,
and lists of ip-addresses/ranges for AXFR/IXFR and NOTIFY.
- prepared for NSEC3 (--enable-nsec3), experimental code for testing
in workshops.
- prepared for NSID (--enable-nsid), experimental code for testing in
workshops.
OPERATIONAL NOTES:
- config file needed, nsd.conf(5) supersedes nsd.zones and nsdc.conf.
- AXFR transfers are denied by default. Allow in config file.
- Zones only become secondary with "request-xfr:" items in config file.
- NSD produces "ixfr.db" file with a journal of zone transfers.
Use nsdc patch to merge changes back to zone files and remake db.
- NSD produces "xfrd.state" file with zone timeout information.
The file is text formatted.
- NSD sends notifies automatically,
nsd-notify is deprecated and will be removed from the package.
- NSD requests AXFR/IXFR and reloads the updates automatically,
nsd-xfer is deprecated and will be removed from the package.
- Check your config file with nsd-checkconf.
BUG FIXES:
- contains all bug fixes from 2.3.5 and before.
- The sighandler() bug is fixed more thoroughly,
by using pipes for interprocess communication.
- CNAMEs are followed by the server to different zones and
information from that zone is returned. This saves a followup
query.
- bug fixes (ported) 2.3.6.
- nsd-notify will retry max 15 times 5 second retries.
- Bug #105: nsdc lacks locking, fixed locking for root user.
- Bug #134: nsd: make -N <large number> work again
- Bug #135: Typo in locking code for nsdc, fixed.
- uninitialised variable fixed.
- unaligned memory access (on Solaris SPARC), in zonec
LOC parsing, fixed.
- Bug #138: nsd aborts trying to bind all interfaces if ip6
is not enabled, instead it will fallback to ip4.
- Bug #139: resync timer for stats to whole minute.
- Bug #140: NSD did not clear CD bit on authoritative answers.
- Bug #141: NSD did not clear flags on a formerror reply.
2.3.5
=============
BUG FIXES:
- Bug #132: regression, nsd: fix compile with --disable-ipv6
- Makefile: remove gnuisms
2.3.4
=============
BUG FIXES:
- Unknown type codes for type code numbers > 48 and < 97 work again.
(this implies --enable-checking can be enabled again)
- nsd: sighandler() fixes
- Bug #118: nsd: nsd_notify waits for a response. Will retry the notify
after a timeout.
- Bug #124: $(DESTDIR) was added to Makefile.in.
- Bug #128: zonec: parser can handle \\ at the end of a string.
- zonec: lexer: add \r to the newline delimeter
- zonec: use strtol with an explicit base 10 as parameter.
(Scott Rose, Roy Arends)
- nsd-xfer: print human readable error codes. Change logging to
be more in line with the rest
2.3.3
=============
BUG FIXES:
- Apply the correct patch to nsdc.sh.in.
2.3.2
=============
FEATURES:
- Bug #101: add support for the SPF record.
BUG FIXES:
- Bug #100: replaced non-portable use of timegm(3) with
portable implementation (mktime_from_utc).
- Bug #103: nsd: trim the SOA's TTL to the MINIMUM value when returning a
negative answer.
- Bug #104: nsd: add a time_t timestamp to the log when logging to
a file.
- Bug #105: nsdc: use a lock file when rebuilding the database (patch by
Jakob Schlyter/Ted Lindgreen/Sebastian/Ondrej Sury).
- Bug #106: zonec: don't walk all 256 NSEC windows when that is not
needed.
- Bug #107: zonec: fixed a crash when encountering bad unknown rdata.
- nsd: Don't print: "error: nsd is already running as <pid>, stopping"
when in fact NSD continues to run.
- nsd: Minimize the race window in sig_handler().
2.3.1
=============
BUG FIXES:
- zonec: Don't crash when generating error messages outside of zone
files.
- nsd: when logging to a file the pid is now printed.
- nsd: Reset 'boot' time in statistics when reloading the database,
since the statistics are reset to 0 on a reload.
- nsd-xfer.c: Added '-a' option to specify local address to connect
from. Original patch supplied by Walter Hop <nsd@walter.transip.nl>.
- Bug #98: Allow mnemonics for DS and RRSIG algorithm field.
2.3.0
=============
FEATURES:
- DNSSEC is now enabled by default. NSD should be fully
compliant with RFC4033, RFC4034, and RFC4035.
BUG FIXES:
- nsd: Ensure that the number of -a flags does not exceed the
maximum specified by MAX_INTERFACES in config.h.
- nsd-xfer: Use serial number arithmetic (RFC1982) for the
zone serial check
- nsdc: Don't pass (fake) serial number to nsd-xfer if the
zone file does not exist.
- zonec: Loading many zones would cause namedb_find_zone to
slow down, performance patch by Kazunori Fujiwara.
- Bug #96: nsd-xfer did not handle 8-bit domain names
correctly.
2.2.1
=============
FEATURES:
- The message priority is now included when logging to a file.
BUG FIXES:
- Zero length RDATA using the unknown RR notation was not
working (except for the APL RR type).
- Bug #93: './configure' error message containing a comma must
be properly bracketed.
- Bug #94: nsd-xfer: Handle unexpected EOF when receiving AXFR
data. Timeout if no data is received for more than 120
seconds (see the TCP_TIMEOUT parameter in config.h).
- Bug #95: An owner starting with an asterisk label ("*") was
being treated as its own wildcard child.
2.2.0
=============
FEATURES:
- nsd-xfer: replacement program for named-xfer to perform zone
transfers using AXFR. TSIG is supported by nsd-xfer but not
yet by the nsd server. DNSSEC is also supported. TSIG
requires OpenSSL version 0.9.7 or higher, configure using
--disable-tsig if you do not have OpenSSL installed.
Configure using --with-ssl=path if OpenSSL is not installed
at a standard location.
CODE CHANGES:
- New data structure 'buffer_type' for representing binary
buffers that can be read, written, and resized. Data in
these buffers is stored in network byte order. This data
structure replaces the iobuf field of 'struct query'.
BUG FIXES:
- Fixed endian problem in WKS record.
- Protocol can now be specified numerically in WKS record.
- Allow escape sequences (\DDD) in TTL, RR class, and RR type.
- The zone compiler now accepts many more characters in
unquoted strings such as domain name labels. The characters
no longer need to be escaped with a backslash.
- Close included files after reading.
- Maximum TCP message size is now 65535 bytes. AXFR response
packets are still limited to 16383 bytes for optimal
compression of dnames.
- The TSIG key for AXFRs can now also be stored in the file
<zonename>.tsiginfo. This makes it possible to use TSIG
with multiple master servers.
- Signals are no longer blocked while performing I/O so the
server should respond quicker to signals.
- Fixed parsing of LOC rdata. Fractions and altitude were not
handled correctly.
2.1.5
=============
BUG FIXES:
- Bug #90: handle \000 in TXT records correctly
- Fixed undefined behavior in the use of vsnprintf when
logging messages. This caused crashes on Linux/PPC.
2.1.4
=============
BUG FIXES:
- nsdc: Fixed a typo that caused AXFRs to stop working.
2.1.3
=============
FEATURES:
- nsd: The pidfile can be specified using the '-P' option.
BUG FIXES:
- Bug #87: allow @ in the rdata
- Bug #88: allow ::FFFF:ipv4addr in AAAA records
- Bug #89: Count the number of queries received over TCP,
instead of the number of TCP connections.
- Zonec: when - is used as input, set the filename to 'STDIN'.
- The nsdc script handles failed AXFRs more gracefully.
- NSD emits an error when it sees bitlabels (RFC 2673).
- Only copy the CD bit when DNSSEC is enabled.
2.1.2
=============
FEATURES:
- NSD now fully supports unknown record types using the
notation specified in RFC3597.
- Support for the following RR types has been added: WKS, X25,
ISDN, RT, NSAP, PX, NAPTR, KX, CERT, DNAME, and APL. DNAME
special processing is not supported.
BUG FIXES:
- Bug #84: NSD now uses SIGUSR1 instead of SIGILL to report stats.
- Bug #85: Support for WKS records.
- Bug #86: The characters "#%&^[]?" can now be used without
backslash in zone file domain names.
- Plugin callback return type fixed.
- The maximum message length for IPv6 UDP packets is now
limited to the IPv6 minimum MTU (1280) unless the
IPV6_USE_MIN_MTU socket option is supported.
2.1.1
=============
BUG FIXES:
- Bug #81: Handle unknown types correctly.
- Bug #82: Zonec: don't report "0 errors" unless -v is
specified.
- Bug #83: Close zone files after parsing.
- Handle AFSDB RR type.
2.1.0
=============
FEATURES:
- New networking code allows a single server to handle both
UDP and TCP connections. By default up to 10 simultaneous
TCP connections are supported. Use the '-n' flag to change
the default.
2.0.2
=============
BUG FIXES:
- Allow the use of a mnemonic for the algorithm field of a
DNSKEY record.
- Behavior of the zonec -v flag has been modified. By default
zonec will only print a single line with a summary of the
error count.
- Bug #75: Fixed typo in previous "fix".
2.0.1
=============
BUG FIXES:
- Queries for QTYPE DS (DNSSEC) were not handled correctly in
certain cases.
- Partial support for unknown RRs. Known RR types with
unknown RR data format is not yet supported.
- Bug #75: Fixed bad error message when nsdc update is run for
the first time.
- Bug #78: Multiple zones, each with include directives, are
now compiled correctly.
2.0.0
=============
FEATURES:
- Experimental DNSSEC support implemented, but disabled by
default. Enable using the --enable-dnssec configuration
option.
- IPv6 enabled by default. Disable using the --disable-ipv6
configuration option.
BUG FIXES:
- Bug #47: Domain name is now logged when a notify is
received.
- Bug #70: First include all A records in the additional
section, followed by AAAA records.
- Bug #77: Check length of domain name and label.
- LOC records are supported again.
1.4.0-alpha1
=============
FEATURES:
- New database format that is much more compact and portable
across architectures.
- The new zone compiler is now the default and the old zone
compiler has been removed.
- Name compression is done dynamically, removing one other
difference with BIND in the responses generated (the full
query name is now used for compression).
- CNAME target records are now generated from wildcard
records if necessary.
REGRESSIONS:
- mmap(2) isn't currently supported.
- Not all RR types are supported by zonec (such as LOC).
1.3.0-alpha1
=============
FEATURES:
- New name lookup algorithm. This required a change to the
database format. Performance should increase at the expense
of database size and memory usage.
- New zone compiler (zonec2) based on flex and yacc, fully RFC
compliant (still in alpha).
- Database can be loaded using mmap(2) (use the --enable-mmap
configure option to enable). This is useful on operating
systems such as Solaris that do not allow memory overcommit.
- Region based memory allocation and resource management.
- New internal format for storing domain names. Each dname
now includes an array of label offsets within the domain
name.
- Updates to the plugin API.
BUG FIXES:
- Bug #65: The syslog facility is now a compile time option
(--with-facility=FACILITY). The default facility is DAEMON.
- Bug #66: Automatic periodic dumping of the statistics (using
the -s option) is now continued after a database reload.
1.2.4
=============
BUG FIXES:
- Bug #72: If an RRset for a child domain is defined before
the RRset of the parent domain the parent's RRset would be
"lost".
1.2.3
=============
BUG FIXES:
- Bug #65: The syslog facility is now a compile time option
(--with-facility=FACILITY). The default facility is DAEMON.
- Bug #66: Automatic periodic dumping of the statistics (using
the -s option) is now continued after a database reload.
- NSD would try to kill pid -1 on startup if forking of a child
process failed.
- Do not log EAGAIN errors on calls to recvfrom. These errors
should be harmless.
1.2.2
=============
BUG FIXES:
- Bug #59: NSD returns FORMERR when the query name is >= 246
bytes.
- Bug #60: Zonec runs out of file descriptors with many zones.
- Bug #61: nsdc uses /bin/sh hardwired (and should not).
- Bug #62: NSD is not able to log to a file.
- Bug #63: nsdc update and zonec are too tallkative.
- Bug #64: Answer for request of a host resolved by a
wildcard-resource-record is not understandable by dig.
1.2.1
=============
BUG FIXES:
- AXFR terminates early if a zone containa a CNAME pointing
the the zone's domain name (SOA record) (bug #56).
- During an AXFR memory above the top of the stack was
accessed. This could lead to occassional AXFR errors (bad
packets).
- NSD now prints its version number and exits when invoked
with the -v flag (bug #57).
- NSD prints help information and exits when invoked with the
-h flag.
1.2.0
=============
FEATURES:
- NSD is now a single parent process (handling child
termination and database reloads) plus multiple UDP and TCP
child processes handling queries. Before the parent process
also handled UDP queries. This change simplifies the parent
and child processes and allows the use of multiple
concurrent UDP servers.
- Experimental plugin support. This required a minor,
incompatible change to the database format. Make sure you
recompile your database. Use --enable-plugins to enable.
- Full IPv6 support (for multi-homing and for Linux, thanks to
Colm MacCárthaigh and Jun-ichiro itojun Hagino). Use
--enable-ipv6 to enable.
- Support for multi-homing with TCP connections.
- Support for SunOS 4.x has been dropped.
CODE CHANGES:
- NSD should now conform to the Single Unix Specification
(http://www.unix.org/).
- Const correctness for strings and some other data types.
- Removed code for Berkeley DB, hash tables, and mmap(2).
- Separate preprocessor flags from code flags (CPPFLAGS and
CFLAGS).
- Use uint8_t instead of u_char, uint{16,32}_t instead of
u_int{16,32}_t.
- Fixed warnings from mixing signed and unsigned types.
- Use sigaction(2) instead of signal(2).
- The query_process function has been split up for clarity.
BUG FIXES:
- CHAOS TXT queries failed on big-endian machines.
- Portability fixes for Tru64 (thanks to Stephane Bortzmeyer),
HP-UX, and MacOS X (thanks to Ronald van der Pol).
- Removed compile time limit on maximum number of TCP child
servers.
- Support for debugging UDP and TCP queries.
- Always ensure there is enough room for the EDNS record when
answering a query with EDNS enabled.
1.1
=============
FEATURES:
- ANSI C
- autoconf/configure
- new parser
- support for various RR types in zonec
- support for UNKN RR types
BUG FIXES:
- lots of zone parsing errors eliminated
- empty node matching bug gives NXDOMAIN
1.0.3
=============
This release is a bug fix release and does not add any new features.
BUG FIXES:
- Ignore SIGPIPE errors (bug #43).
- Keep track of TCP child servers and restart if necessary.
(bug #55)
- Handle database reload failures correctly.
- Close UDP sockets in TCP child servers.
- Handle escaped characters (besides \.) in labels.
- Preserve the query's RD flag in the answer.
1.0.2
=============
FEATURES:
- -DBIND8_STATS to enable bind8 like [NX]STATS
- -t flag to make nsd chroot to a certain directory
- -s flag to make nsd produce statistics every s seconds
- /etc/nsd/nsdc.conf to overwrite default variables
for nsdc.sh
- less loggin and more radical tcp connection (mis)handling
- prefork -n processes to handle tcp connections
- multiple -a flags
CHANGES:
- named.stats file functionality is removed
BUG FIXES:
- couple of pedantic fixes in C code
- last zone in database axfr bug fixed
- nsdc update wont update bug fixed
1.0.1
=============
FEATURES:
- NSD drops permissions after binding the sockets
- ``cache'' zones are no longer allowed
- ID.Server & Version.Server compile time options
- AXFR implemented (with tcpwrapper for access control)
- nsdc update and nsdc notify functinality
- using named-xfer with TSIG for inbound axfr
CHANGES:
- the order of records in the database is from now
on significant
- since Berkeley DB doesnt define order for sequential
access it is no longer supported
BUG FIXES:
- white space problem in zonec is fixed
KNOWN BUGS:
- please see appropriate man pages for the known bugs
1.0.0 RELEASE
=============
KNOWN BUGS:
- Although NSD allows one to configure a zone without SOA record and
use it as so called ``cached'' non-authoritative data, it is decided
that having this functionality is wrong, dangerous and will be removed
from the further versions.
- If while processing EDNS(0) OPT record NSD encounters bad EDNS(0)
version it will answer with Format Error instead of EDNS(0) BADVERS
PLATFORMS:
Tested and working on i386 FreeBSD-4.4, i386 Linux, dec alpha Linux,
sparc SunOS 4.x
1.0.0-BETA2
===========
FIXES:
- wildcards bug fixed
- AA bit for class ANY bug fixed
- minor coredumps with really broken zones in zonec fixed
- linux & SunOS port
1.0-ALPHA2
==========
FIXES:
- IPv6 transport support added by Jun-ichiro itojun Hagino (Use -DINET6)
- Makefile modified for easier compile time configuration
- EDNS(0) bug fixed
- Default database changed to all lowercase, red-black tree to make nsd
DNSSEC ready
- REQUIREMENTS are cleaned up and updated
- Signal names changed in nsdc.sh.in
- Default compile options dont include -DMIMIC_BIND8
