4 This is the first stable release of Samba 4.6.
5 Please read the release notes carefully before upgrading.
13 We discovered that the majority of users have an invalid or incorrect
14 ID mapping configuration. We implemented checks in the 'testparm' tool to
15 validate the ID mapping configuration. You should run it and check if it prints
16 any warnings or errors after upgrading! If it does you should fix them. See the
17 'IDENTITY MAPPING CONSIDERATIONS' section in the smb.conf manpage.
18 There are some ID mapping backends which are not allowed to be used for the
19 default backend. Winbind will no longer start if an invalid backend is
20 configured as the default backend.
22 To avoid problems in future we advise all users to run 'testparm' after
23 changing the smb.conf file!
25 vfs_fruit option "fruit:resource" spelling correction
26 -----------------------------------------------------
28 Due to a spelling error in the vfs_fruit option parsing for the "fruit:resource"
29 option, users who have set this option in their smb.conf were still using the
30 default setting "fruit:resource = file" as the parser was looking for the string
31 "fruit:ressource" (two "s").
33 After upgrading to this Samba version 4.6, you MUST either remove the option
34 from your smb.conf or set it to the default "fruit:resource = file", otherwise
35 your macOS clients will not be able to access the resource fork data.
37 This version Samba 4.6 accepts both the correct and incorrect spelling, but the
38 next Samba version 4.7 will not accept the wrong spelling.
40 Users who were using the wrong spelling "ressource" with two "s" can keep the
41 setting, but are advised to switch to the correct spelling.
43 vfs_fruit Netatalk metadata xattr name on *BSD
44 ----------------------------------------------
46 Users on *BSD must rename the metadata xattr used by vfs_fruit when
47 using the default setting "fruit:metadata = netatalk".
49 Due to a glitch in the Samba xattr API compatibility layer for FreeBSD and a
50 mistake in vfs_fruit, vfs_fruit ended up using the wrong xattr name when
51 configured with "fruit:metadata = netatalk" (default). Instead of the correct
59 Starting with Samba 4.6 vfs_fruit will use the correct "org.netatalk.Metadata"
60 which means existing installations must rename this xattrs. For this purpose
61 Samba now includes a new tool `mvxattr`. See below for further details.
67 Kerberos client encryption types
68 --------------------------------
69 Some parts of Samba (most notably winbindd) perform Kerberos client
70 operations based on a Samba-generated krb5.conf file. A new
71 parameter, "kerberos encryption types" allows configuring the
72 encryption types set in this file, thereby allowing the user to
73 enforce strong or legacy encryption in Kerberos exchanges.
75 The default value of "all" is compatible with previous behavior, allowing
76 all encryption algorithms to be negotiated. Setting the parameter to "strong"
77 only allows AES-based algorithms to be negotiated. Setting the parameter to
78 "legacy" allows only RC4-HMAC-MD5 - the legacy algorithm for Active Directory.
79 This can solves some corner cases of mixed environments with Server 2003R2 and
84 Support for uploading printer drivers from newer Windows clients (Windows 10)
85 has been added until our implementation of [MS-PAR] protocol is ready.
86 Several issues with uploading different printing drivers have been addressed.
88 The OS Version for the printing server has been increased to announce
89 Windows Server 2003 R2 SP2. If a driver needs a newer version then you should
90 check the smb.conf manpage for details.
92 New option for owner inheritance
93 --------------------------------
94 The "inherit owner" smb.conf parameter instructs smbd to set the
95 owner of files to be the same as the parent directory's owner.
96 Up until now, this parameter could be set to "yes" or "no".
97 A new option, "unix only", enables this feature only for the UNIX owner
98 of the file, not affecting the SID owner in the Windows NT ACL of the
99 file. This can be used to emulate something very similar to folder quotas.
101 Multi-process Netlogon support
102 ------------------------------
104 The Netlogon server in the Samba AD DC can now run as multiple
105 processes. The Netlogon server is a part of the AD DC that handles
106 NTLM authentication on behalf of domain members, including file
107 servers, NTLM-authenticated web servers and 802.1x gateways. The
108 previous restriction to running as a single process has been removed,
109 and it will now run in the same process model as the rest of the
112 As part of this change, the NETLOGON service will now run on a distinct
113 TCP port, rather than being shared with all other RPC services (LSA,
116 New options for controlling TCP ports used for RPC services
117 -----------------------------------------------------------
119 The new 'rpc server port' option controls the default port used for
120 RPC services other than Netlogon. The Netlogon server honours instead
121 the 'rpc server port:netlogon' option. The default value for both
122 these options is the first available port including or after 1024.
124 AD LDAP and replication performance improvements
125 ------------------------------------------------
127 Samba's LDB (the database holding the AD directory tree, as seen via
128 LDAP) and our DRSUAPI replication code continues to improve,
129 particularly in respect to the handling of large numbers of objects or
132 * We now respect an 'uptodateness vector' which will dramatically
133 reduce the over-replication of links from new DCs.
135 * We have also made the parsing of on-disk linked attributes much
138 * We rely on ldb 1.1.28. This ldb version has improved memory
139 handling for ldb search results, improving poorly indexed and
140 unindexed search result processing speed by around 20%.
145 The samba-tool dns subcommand is now much more robust and can delete
146 records in a number of situations where it was not possible to do so
149 On the server side, DNS names are now more strictly validated.
154 * "ctdb event" is a new top-level command for interacting with event scripts
156 "ctdb event status" replaces "ctdb scriptstatus" - the latter is
157 maintained for backward compatibility but the output format has been
160 "ctdb event run" replaces "ctdb eventscript"
162 "ctdb event script enable" replaces "ctdb enablescript"
164 "ctdb event script disable" replaces "ctdb disablescript"
166 The new command "ctdb event script list" lists event scripts.
168 * CTDB's back-end for running event scripts has been replaced by a
169 separate, long-running daemon ctdbd_eventd.
171 * Running ctdb interactively will log to stderr
173 * CTDB logs now include process id for each process
175 * CTDB tags log messages differently. Changes include:
177 ctdb-recoverd: Messages from CTDB's recovery daemon
178 ctdb-recovery: Messages from CTDB database recovery
179 ctdb-eventd: Messages from CTDB's event daemon
180 ctdb-takeover: Messages from CTDB's public IP takeover subsystem
182 * The mapping between symbolic and numeric debug levels has changed
184 Configurations containing numeric debug levels should be updated.
185 Symbolic debug levels are recommended. See the DEBUG LEVEL section
186 of ctdb(7) for details.
188 * Tunable IPAllocAlgorithm replaces LCP2PublicIPs, DeterministicIPs
190 See ctdb-tunables(7) for details.
192 * CTDB's configuration tunables should be consistently set across a cluster
194 This has always been the cases for most tunables but this fact is
197 * CTDB ships with recovery lock helper call-outs for etcd and Ceph RADOS
199 To build/install these, use the "--enable-etcd-reclock" and
200 "--enable-ceph-reclock" configure options.
205 winbind contains code that tries to emulate the group membership calculation
206 that domain controllers do when a user logs in. This group membership calculation
207 is a very complex process, in particular for domain trust relationship
208 situations. Also, in many scenarios it is impossible for winbind to
209 correctly do this calculation due to access restrictions in the
210 domains: winbind using its machine account simply does not have the
211 rights to ask for an arbitrary user's group memberships.
213 When a user logs in to a Samba server, the domain controller correctly
214 calculates the user's group memberships authoritatively and makes the
215 information available to the Samba server. This is the only reliable
216 way Samba can get informed about the groups a user is member of.
218 Because of its flakiness, the fallback group membership code is unwished,
219 and our code pathes try hard to only use of the group memberships
220 calculated by the domain controller.
222 However, a lot of admins rely on the fallback behavior in order to support
223 access for nfs access, ssh public key authentication and passwordless sudo.
225 That's the reason for changing this back between 4.6.0rc4 and 4.6.0
228 The winbind change to simplify the calculation of supplementary groups to make
229 it more reliable and predictable has been deferred to 4.7 or later.
231 This means that 'id <username>' without the user having logged in
232 previously works similar to 4.5.
234 winbind primary group and nss info
235 ----------------------------------
237 With 4.6, it will be possible to optionally use the primary group as
238 set in the "Unix Attributes" tab for the local unix token of a domain
239 user. Before 4.6, the Windows primary group was always chosen as
240 primary group for the local unix token.
242 To activate the unix primary group, set
244 idmap config <DOMAIN> : unix_primary_group = yes
248 idmap config <DOMAIN> : unix_nss_info = yes
250 to retrieve the home directory and login shell from the "Unix
251 Attributes" of the user. This supersedes the "winbind nss info"
252 parameter with a per-domain configuration option.
257 mvxattr is a simple utility to recursively rename extended attributes of all
258 files and directories in a directory tree.
260 Usage: mvxattr -s STRING -d STRING PATH [PATH ...]
261 -s, --from=STRING xattr source name
262 -d, --to=STRING xattr destination name
263 -l, --follow-symlinks follow symlinks, the default is to ignore them
264 -p, --print print files where the xattr got renamed
265 -v, --verbose print files as they are checked
266 -f, --force force overwriting of destination xattr
269 -?, --help Show this help message
270 --usage Display brief usage message
275 The idmap_hash module is marked as deprecated with this release and will be
276 removed in a future version. See the manpage of the module for details.
282 Parameter Name Description Default
283 -------------- ----------- -------
284 kerberos encryption types New all
285 inherit owner New option
286 fruit:resource Spelling correction
287 lsa over netlogon New (deprecated) no
288 rpc server port New 0
294 https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.6#Release_blocking_bugs
297 CHANGES SINCE 4.6.0rc4
298 ======================
300 o Jeremy Allison <jra@samba.org>
301 * BUG 12592: Fix several issues found by covscan.
302 * BUG 12608: s3: smbd: Restart reading the incoming SMB2 fd when the send
305 o Ralph Boehme <slow@samba.org>
306 * BUG 12427: vfs_fruit doesn't work with fruit:metadata=stream.
307 * BUG 12526: vfs_fruit: Only veto AppleDouble files if "fruit:resource" is
309 * BUG 12604: vfs_fruit: Enabling AAPL extensions must be a global switch.
311 o Volker Lendecke <vl@samba.org>
312 * BUG 12612: Re-enable token groups fallback.
314 o Stefan Metzmacher <metze@samba.org>
315 * BUG 9048: Samba4 ldap error codes.
316 * BUG 12557: gensec:spnego: Add debug message for the failed principal.
317 * BUG 12605: s3:winbindd: Fix endless forest trust scan.
318 * BUG 12612: winbindd: Find the domain based on the sid within
319 wb_lookupusergroups_send().
321 o Andreas Schneider <asn@samba.org>
322 * BUG 12557: s3:librpc: Handle gss_min in gse_get_client_auth_token()
324 * BUG 12582: idmap_hash: Add a deprecation message, improve the idmap_hash
326 * BUG 12592: Fix several issues found by covscan.
328 o Martin Schwenke <martin@meltin.net>
329 * BUG 12592: ctdb-logging: CID 1396883 Dereference null return value
333 CHANGES SINCE 4.6.0rc3
334 ======================
336 o Jeremy Allison <jra@samba.org>
337 * BUG 12545: s3: rpc_server/mdssvc: Add attribute "kMDItemContentType".
338 * BUG 12572: s3: smbd: Don't loop infinitely on bad-symlink resolution.
340 o Ralph Boehme <slow@samba.org>
341 * BUG 12490: vfs_fruit: Correct Netatalk metadata xattr on FreeBSD.
342 * BUG 12536: s3/smbd: Check for invalid access_mask
343 smbd_calculate_access_mask().
344 * BUG 12591: vfs_streams_xattr: use fsp, not base_fsp.
346 o Amitay Isaacs <amitay@gmail.com>
347 * BUG 12580: ctdb-common: Fix use-after-free error in comm_fd_handler().
348 * BUG 12595: build: Fix generation of CTDB manpages while creating tarball.
350 o Bryan Mason <bmason@redhat.com>
351 * BUG 12575: Modify smbspool_krb5_wrapper to just fall through to smbspool if
352 AUTH_INFO_REQUIRED is not set or is not "negotiate".
354 o Stefan Metzmacher <metze@samba.org>
355 * BUG 11830: s3:winbindd: Try a NETLOGON connection with noauth over NCACN_NP
356 against trusted domains.
357 * BUG 12262: 'net ads testjoin' and smb access fails after winbindd changed the
359 * BUG 12585: librpc/rpc: fix regression in
360 NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE error mapping.
361 * BUG 12586: netlogon_creds_cli_LogonSamLogon doesn't work without
362 netr_LogonSamLogonEx.
363 * BUG 12587: winbindd child segfaults on connect to an NT4 domain.
364 * BUG 12588: s3:winbindd: Make sure cm_prepare_connection() only returns OK
365 with a valid tree connect.
366 * BUG 12598: winbindd (as member) requires kerberos against trusted ad domain,
368 * BUG 12601: Backport pytalloc_GenericObject_reference() related changes to
371 o Garming Sam <garming@catalyst.net.nz>
372 * BUG 12600: dbchecker: Stop ignoring linked cases where both objects are
375 o Andreas Schneider <asn@samba.org>
376 * BUG 12571: s3-vfs: Only walk the directory once in open_and_sort_dir().
378 o Martin Schwenke <martin@meltin.net>
379 * BUG 12589: CTDB statd-callout does not cause grace period when
381 * BUG 12595: ctdb-build: Fix RPM build.
384 CHANGES SINCE 4.6.0rc2
385 ======================
387 o Jeremy Allison <jra@samba.org>
388 * BUG 12499: s3: vfs: dirsort doesn't handle opendir of "." correctly.
389 * BUG 12546: s3: VFS: vfs_streams_xattr.c: Make streams_xattr_open() store
390 the same path as streams_xattr_recheck().
391 * BUG 12531: Make vfs_shadow_copy2 cope with server changing directories.
393 o Andrew Bartlett <abartlet@samba.org>
394 * BUG 12543: samba-tool: Correct handling of default value for use_ntvfs and
396 * BUG 12573: Samba < 4.7 does not know about compatibleFeatures and
398 * BUG 12577: 'samba-tool dbcheck' gives errors on one-way links after a
401 o Ralph Boehme <slow@samba.org>
402 * BUG 12184: s3/rpc_server: Shared rpc modules loading.
403 * BUG 12520: Ensure global "smb encrypt = off" is effective.
404 * BUG 12524: s3/rpc_server: Move rpc_modules.c to its own subsystem.
405 * BUG 12541: vfs_fruit: checks wrong AAPL config state and so always uses
408 o Volker Lendecke <vl@samba.org>
409 * BUG 12551: smbd: Fix "map acl inherit" = yes.
411 o Stefan Metzmacher <metze@samba.org>
412 * BUG 12398: Replication with DRSUAPI_DRS_CRITICAL_ONLY and
413 DRSUAPI_DRS_GET_ANC results in WERR_DS_DRA_MISSING_PARENT S
414 * BUG 12540: s3:smbd: allow "server min protocol = SMB3_00" to go via "SMB
417 o John Mulligan <jmulligan@nasuni.com>
418 * BUG 12542: docs: Improve description of "unix_primary_group" parameter in
421 o Andreas Schneider <asn@samba.org>
422 * BUG 12552: waf: Do not install the unit test binary for krb5samba.
424 o Amitay Isaacs <amitay@gmail.com>
425 * BUG 12547: ctdb-build: Install CTDB tests correctly from toplevel.
426 * BUG 12549: ctdb-common: ioctl(.. FIONREAD ..) returns an int value.
428 o Garming Sam <garming@catalyst.net.nz>
429 * BUG 12577: 'samba-tool dbcheck' gives errors on one-way links after a
432 o Uri Simchoni <uri@samba.org>
433 * BUG 12529: waf: Backport finding of pkg-config.
436 CHANGES SINCE 4.6.0rc1
437 ======================
439 o Amitay Isaacs <amitay@gmail.com>
440 * BUG 12469: CTDB lock helper getting stuck trying to lock a record.
441 * BUG 12500: ctdb-common: Fix a bug in packet reading code for generic socket
443 * BUG 12510: sock_daemon_test 4 crashes with SEGV.
444 * BUG 12513: ctdb-daemon: Remove stale eventd socket.
446 o Björn Jacke <bj@sernet.de>
447 * BUG 12535: vfs_default: Unlock the right file in copy chunk.
449 o Volker Lendecke <vl@samba.org>
450 * BUG 12509: messaging: Fix dead but not cleaned-up-yet destination sockets.
451 * BUG 12538: Backport winbind fixes.
453 o Stefan Metzmacher <metze@samba.org>
454 * BUG 12501: s3:winbindd: talloc_steal the extra_data in
455 winbindd_list_users_recv().
457 o Martin Schwenke <martin@meltin.net>
458 * BUG 12511: ctdb-takeover: Handle case where there are no RELEASE_IPs to
460 * BUG 12512: ctdb-scripts: Fix remaining uses of "ctdb gratiousarp".
461 * BUG 12516: ctdb-scripts: /etc/iproute2/rt_tables gets populated with multiple
465 #######################################
466 Reporting bugs & Development Discussion
467 #######################################
469 Please discuss this release on the samba-technical mailing list or by
470 joining the #samba-technical IRC channel on irc.freenode.net.
472 If you do report problems then please try to send high quality
473 feedback. If you don't provide vital information to help us track down
474 the problem then you will probably be ignored. All bug reports should
475 be filed under the Samba 4.1 and newer product in the project's Bugzilla
476 database (https://bugzilla.samba.org/).
479 ======================================================================
480 == Our Code, Our Bugs, Our Responsibility.
482 ======================================================================