4 This is the third release candidate of Samba 4.0. This is *not*
5 intended for production environments and is designed for testing
6 purposes only. Please report any defects via the Samba bug reporting
7 system at https://bugzilla.samba.org/.
9 Samba 4.0 will be the next version of the Samba suite and incorporates
10 all the technology found in both the Samba4 series and the
11 stable 3.x series. The primary additional features over Samba 3.6 are
12 support for the Active Directory logon protocols used by Windows 2000
15 This release contains the best of all of Samba's
16 technology parts, both a file server (that you can reasonably expect
17 to upgrade existing Samba 3.x releases to) and the AD domain
18 controller work previously known as 'samba4'.
20 If you are upgrading, or looking to develop, test or deploy Samba 4.0
21 releases candidates, you should backup all configuration and data.
27 Users upgrading from Samba 3.x domain controllers and wanting to use
28 Samba 4.0 as an AD DC should use the 'samba-tool domain
29 classicupgrade' command. See the wiki for more details:
30 https://wiki.samba.org/index.php/Samba4/samba3upgrade/HOWTO.
32 Users upgrading from Samba 4.0 alpha and beta releases since alpha15
33 should run 'samba-tool dbcheck --cross-ncs --fix' before re-starting
34 Samba. Users upgrading from earlier alpha releases should contact the
37 Users upgrading an AD DC from any previous release should run
38 'samba-tool ntacl sysvolreset' to re-sync ACLs on the sysvol share
39 with those matching the GPOs in LDAP and the defaults from an initial
40 provision. This will set an underlying POSIX ACL if required (eg not
41 using the NTVFS file server).
43 If you used the BIND9_FLATFILE or BIND9_DLZ features,
44 you'll have to add '-dns' to the 'server services' option,
45 as the internal dns server (SAMBA_INTERNAL) is the default now.
51 Samba 4.0 supports the server-side of the Active Directory logon
52 environment used by Windows 2000 and later, so we can do full domain
53 join and domain logon operations with these clients.
55 Our Domain Controller (DC) implementation includes our own built-in
56 LDAP server and Kerberos Key Distribution Center (KDC) as well as the
57 Samba3-like logon services provided over CIFS. We correctly generate
58 the infamous Kerberos PAC, and include it with the Kerberos tickets we
61 Samba 4.0.0rc3 ships with two distinct file servers. We now use the
62 file server from the Samba 3.x series 'smbd' for all file serving by
65 Samba 4.0 also ships with the 'NTVFS' file server. This file server
66 is what was used in all previous releases of Samba 4.0, and is
67 tuned to match the requirements of an AD domain controller. We
68 continue to support this, not only to provide continuity to
69 installations that have deployed it as part of an AD DC, but also as a
70 running example of the NT-FSA architecture we expect to move smbd to in
73 For pure file server work, the binaries users would expect from that
74 series (nmbd, winbindd, smbpasswd) continue to be available. When
75 running an AD DC, you only need to run 'samba' (not
76 nmbd/smbd/winbind), as the required services are co-coordinated by this
79 As DNS is an integral part of Active Directory, we also provide two DNS
80 solutions, a simple internal DNS server for 'out of the box' configurations
81 and a more elaborate BIND plugin using the BIND DLZ mechanism in versions
82 9.8 and 9.9. During the provision, you can select which backend to use.
83 With the internal backend, your DNS server is good to go.
84 If you chose the BIND_DLZ backend, a configuration file will be generated
85 for bind to make it use this plugin, as well as a file explaining how to
88 To provide accurate timestamps to Windows clients, we integrate with
89 the NTP project to provide secured NTP replies. To use you need to
90 start ntpd and configure it with the 'restrict ... ms-sntp' and
91 ntpsigndsocket options.
93 Finally, a new scripting interface has been added to Samba 4, allowing
94 Python programs to interface to Samba's internals, and many tools and
95 internal workings of the DC code is now implemented in python.
98 ######################################################################
105 Parameter Name Description
106 -------------- -----------
108 allow dns updates New
110 announce version Removed
112 client max protocol New
113 client min protocol New
114 client signing Changed default
115 dcerpc endpoint servers New
117 display charset Removed
119 dns update command New
120 homedir map Changed default
121 kernel oplocks Changed default
122 kernel share modes New
127 nbt client socket address New
130 ntp signd socket directory New
132 paranoid server security Removed
134 printer admin Removed
137 samba kcc command New
138 send spnego principal Removed
139 server max protocol New
140 server min protocol New
143 server signing Changed default
146 smb2 max read Changed default
147 smb2 max write Changed default
148 smb2 max trans Changed default
149 socket address Removed
150 spn update command New
155 tls dh params file New
160 winbindd privileged socket directory New
161 winbind sealed pipes New
162 winbindd socket directory New
165 CHANGES SINCE 4.0.0rc2
166 ======================
168 o Jeremy Allison <jra@samba.org>
169 * BUG 8966: Fix 'net rpc share allowedusers' to work with 2008r2.
170 * BUG 9209: Parse of invalid SMB2 create blob can cause smbd crash.
171 * BUG 9214: Bad user supplied SMB2 credit value can cause smbd to call
173 * BUG 9222: Document that signing cannot be disabled for SMB2 by design.
176 o Andrew Bartlett <abartlet@samba.org>
177 * BUG 9235: Update Samba3-HOWTO Collection.
178 * BUG 9271: samba-tool: Skip chown in sysvolreset when it would fail on
180 * BUG 9274: Update Samba3-HOWTO Collection.
183 o Björn Baumbach <bb@sernet.de>
184 * BUG 9235: Fix opening and ending tag mismatch in Samba3-HOWTO.
185 * BUG 9271: Fix typos in samba_backup.
186 * BUG 9274: Add delete_lost option to vfs_streams_depot.8.
189 o Kai Blin <kai@samba.org>
190 * BUG 9225: Fix return code for deleted DNS records.
191 * BUG 8878: Time out UDP requests after DNS_REQUEST_TIMEOUT seconds.
194 o Günther Deschner <gd@samba.org>
195 * BUG 9177: pam_winbind: Match more return codes when wbcGetPwnam has
199 o David Disseldorp <ddiss@samba.org>
200 * BUG 9269: Fix 64bit-portability-issue.
203 o Björn Jacke <bj@sernet.de>
204 * BUG 5670: Apply some Solaris packaging fixes.
205 * BUG 8107: Fix poll replacement to become a msleep replacement.
206 * BUG 8344: Fix --with(out)-sendfile-support option handling.
209 o Volker Lendecke <vl@samba.org>
210 * BUG 9223: Fix uninitialized variable in the cldap server.
211 * BUG 9268: Make tdb robust against improper CLEAR_IF_FIRST restart.
214 o Stefan Metzmacher <metze@samba.org>
215 * BUG 9271: Several samba-tool fixes.
216 * BUG 9196: Don't take 'state->te' as indication for "was_deferred".
219 o Matthieu Patou <mat@matws.net>
220 * BUG 9240: Remove unused variable in DNS server.
221 * BUG 9252: Preliminary tests for dcpromo in Windows 2012 fails with
223 * BUG 9253: Crackname returns a dns domain name even if there is no cracked
225 * BUG 9255: Getncchanges with exop for repl_obj returns highest_usn.
226 * BUG 9256: Getncchanges with exop for repl_obj_with_secrets should always
228 * BUG 9257: LDAP server has at least one un-initialized variable.
229 * BUG 9258: LDAP server ignore configuration values set in the database for
231 * BUG 9259: rodc join fails complaining that it can't find a RWDC.
232 * BUG 9260: kccdrs_replica_get_info returns invalid level when non
233 supported should be returned.
234 * BUG 9261: ds_replica_sync fails when specifying a name and not a guid.
235 * BUG 9264: getncchanges returns invalid_parameters when it should return
237 * BUG 9254: DsExecuteKCC returns wrong error code if taskid != 0.
238 * BUG 9265: Bind dlz fails to start if there is a trustedanchors zone.
241 o Rusty Russell <rusty@rustcorp.com.au>
242 * BUG 9268: Make tdb robust against shrinking tdbs.
245 o Andreas Schneider <asn@samba.org>
246 * BUG 8769: Fix RAW printing for normal users.
247 * BUG 9112: Increase debug level for info that the db is empty.
248 * BUG 9244: Build pam_smbpass module only if enabled.
249 * BUG 9245: Make sure the registry is set up before we init printing.
250 * BUG 9276: Add config for systemd-tmpfiles.
251 * BUG 9280: Add support for reloading systemd services.
254 o Karolin Seeger <kseeger@samba.org>
255 * BUG 7826: Remove link to Using Samba.
256 * BUG 8802: Add basic manpages for 'samba' and 'samba-tool'.
257 * BUG 9165: Fix makerpms.sh on RHEL.
258 * BUG 9243: Remove duplicate synonym min protocol.
259 * BUG 9271: Several samba-tool fixes.
262 o Jelmer Vernooij <jelmer@samba.org>
263 * BUG 9243: Add basic documentation for 'server min protocol'.
264 * BUG 9271: Several samba-tool fixes.
265 * BUG 9274: Add documentation for several parameters.
268 o Matthias Dieter Wallnöfer <mdw@samba.org>
269 * BUG 9183: Introduce the wildcard binding feature to allow DNS to listen on
273 CHANGES SINCE 4.0.0rc1
274 ======================
276 o Michael Adam <obnox@samba.org>
277 * BUG 9173: Make the SMB2 compound request create/delete_on_close/
278 close work as Windows.
281 o Jeremy Allison <jra@samba.org>
282 * BUG 9161: Re-add the vfs_Chdir() cache.
283 * BUG 9189: SMB2 Create doesn't return correct MAX ACCESS access mask in
285 * BUG 9213: Bad ASN.1 NegTokenInit packet can cause invalid free.
288 o Christian Ambach <ambi@samba.org>
289 * BUG 9162: Fix the build of the GPFS VFS module.
290 * BUG 9197: Only do 'printing_subsystem_update' when printing is enabled.
293 o Andrew Bartlett <abartlet@samba.org>
294 * BUG 9228: Fix build on systems without ldap development headers.
297 o Alexander Bokovoy <ab@samba.org>
298 * BUG 9157: Cleanup idmap_ldap build dependencies.
299 * BUG 9228: Make smbldaphelper subsystem an internal library.
300 * BUG 9229: Fix build of winbindd- and krb5 locator-related manpages.
303 o Sumit Bose <sbose@redhat.com>
304 * BUG 9185: Allow DNS resolution of trusted domains if DNS name is
308 o Ira Cooper <ira@samba.org>
309 * BUG 9162: Fix build on Illumos/Solaris using '--with-acl'.
310 * BUG 9173: Compound requests should continue processing.
313 o Günther Deschner <gd@samba.org>
314 * BUG 9185: Winbind cannot resolve AD DC in a different subnet.
317 o Björn Jacke <bj@sernet.de>
318 * BUG 9162: Fix the build of the ACL VFS modules.
319 * BUG 9172: Fix reporting of gfs2 quotas.
322 o Volker Lendecke <vl@samba.org>
323 * BUG 9217: CreateFile with FILE_DIRECTORY_FILE can create directories
327 o Vladimir Marek <Vladimir.Marek@Oracle.COM>
328 * BUG 9192: Fix service control for non-internal services.
331 o Stefan Metzmacher <metze@samba.org>
332 * BUG 9173: Make the SMB2 compound request create/delete_on_close/
333 close work as Windows.
334 * BUG 9184: Fix receiving of UDP packets from 0 bytes.
335 * BUG 9191: Release the share mode lock before calling exit_server().
336 * BUG 9193: Fix usage of invalid memory in smb2_signing_check_pdu().
337 * BUG 9194: Disallow '--prefix=/usr' and '--prefix=/usr/local' without
339 * BUG 9198: Fix RHEL-CTDB packaging.
342 o Matthieu Patou <mat@matws.net>
343 * BUG 9199: Fix usage of "panic action".
344 * BUG 9233: Fix a non handled memory out of memory.
347 o Andreas Schneider <asn@samba.org>
348 * BUG 8632: Fix builtin forms order to match Windows again.
349 * BUG 9159: Fix generating idmap manpages.
350 * BUG 9218: Don't segfault if user specified ports out for range.
351 * BUG 9231: Fix NT_STATUS_IO_TIMEOUT during slow import of printers into
358 - 'samba-tool domain classicupgrade' will fail when setting ACLs on
359 the GPO folders with NT_STATUS_INVALID_ONWER in the default
360 configuration. This happens if, as is typical a 'domain admins'
361 group (-512) is mapped in the passdb backend being upgraded. This
362 is because the group mapping to a GID only prevents Samba from
363 allocating a uid for that group. The uid is needed so the 'domain
364 admins' group can own the GPO file objects.
366 To work around this issue, remove the 'domain admins' group before
367 upgrade, as it will be re-created automatically. You will
368 of course need to fill in the group membership again. A future release
369 will make this automatic, or find some other workaround.
371 - This release makes the s3fs file server the default, as this is the
372 file server combination we will use for the Samba 4.0 release.
374 - For similar reasons, sites with ACLs stored by the ntvfs file server
375 may wish to continue to use that file server implementation, as a
376 posix ACL will similarly not be set in this case.
378 - Replication of DNS data from one AD server to another may not work.
379 The DNS data used by the internal DNS server and bind9_dlz is stored
380 in an application partition in our directory. The replication of
381 this partition is not yet reliable.
383 - Replication may fail on FreeBSD due to getaddrinfo() rejecting names
384 containing _. A workaround will be in a future release.
386 - samba_upgradeprovision should not be run when upgrading to this release
387 from a recent release. No important database format changes have
388 been made since alpha16.
390 - Installation on systems without a system iconv (and developer
391 headers at compile time) is known to cause errors when dealing with
392 non-ASCII characters.
394 - Domain member support in the 'samba' binary is in its infancy, and
395 is not comparable to the support found in winbindd. As such, do not
396 use the 'samba' binary (provided for the AD server) on a member
399 - There is no NetBIOS browsing support (network neighbourhood)
400 available for the AD domain controller. (Support in nmbd and smbd
401 for classic domains and member/standalone servers is unchanged).
403 - Clock Synchronisation is critical. Many 'wrong password' errors are
404 actually due to Kerberos objecting to a clock skew between client
405 and server. (The NTP work in the previous alphas are partly to assist
408 - The DRS replication code may fail. Please contact the team if you
409 experience issues with DRS replication, as we have fixed many issues
410 here in response to feedback from our production users.
413 RUNNING Samba 4.0 as an AD DC
414 =============================
416 A short guide to setting up Samba 4 as an AD DC can be found on the wiki:
418 http://wiki.samba.org/index.php/Samba4/HOWTO
420 #######################################
421 Reporting bugs & Development Discussion
422 #######################################
424 Please discuss this release on the samba-technical mailing list or by
425 joining the #samba-technical IRC channel on irc.freenode.net.
427 If you do report problems then please try to send high quality
428 feedback. If you don't provide vital information to help us track down
429 the problem then you will probably be ignored. All bug reports should
430 be filed under the Samba 4.0 product in the project's Bugzilla
431 database (https://bugzilla.samba.org/).
434 ======================================================================
435 == Our Code, Our Bugs, Our Responsibility.
437 ======================================================================