1 WHATS NEW IN Samba 3.0.2pre1
3 ===============================
5 This is a preview release of the Samba 3.0.2 code base and is
6 provided for testing only. This release is *not* intended for
7 production servers. Use at your own risk.
9 There have been several bug fixes since the 3.0.1 release that
10 we feel are important to make available to the Samba community
11 for wider testings. See the "Changes" section for details on
15 ######################################################################
19 ----------------------
21 Please refer to the CVS log for the SAMBA_3_0 branch for complete
22 details. The list of changes per contributor are as follows:
26 ldap replication sleep New
32 o Jeremy Allison <jra@samba.org>
33 * Tidy up of NTLMSSP code.
34 * Fixes for SMB signing errors
37 o Petri Asikainen <paca@sci.fi>
38 * BUG 330, 387:Fix single valued attribute updates when
39 working with Novell NDS.
42 o Andrew Bartlet <abartlet@samba.org>
43 * Correctly handle per-pipe NTLMSSP inside a NULL session.
44 * Fix segfault in gencache
45 * Fix early free() of encrypted_session_key.
46 * Change DC lookup routines to more carefully separate
47 DNS names (realms) from NetBIOS domain names.
48 * Add new sid_to_dn() utility function for internal winbindd use.
49 * Refactor cli_ds_enum_domain_trusts().
50 * BUG 707: Implement range retrieval of ADS attributes (based on
51 work from Volker <vl@samba.org> and Guenther Deschner
53 * Automatically initialize the signing engine if a session key is
55 * BUG 916: Do not perform a + -> ' ' substitution for squid URL
56 encoded strings, only form input in SWAT.
57 * Ensure Samba resets the NTLMSSP state for new negotiate packets.
58 * Add 2-byte alignments in net_samlogon() queries to parse odd-length
60 * Allow Windows groups with no members in winbindd.
61 * Allow normal authentication in the absence of a server
62 generated session key.
63 * More optimizations for looking up UNIX group lists.
64 * Clean up error codes and return values for pam_winbindd
65 and winbindd PAM interface.
66 * Fix restring return values in ntlm_auth tool.
69 o Dmitry Butskoj <buc@odusz.elektra.ru>
70 * Fix for special files being hidden from admins.
73 o Gerald (Jerry) Carter <jerry@samba.org>
74 * Fix bug in the lanman session key generation. Caused
75 "decode_pw: incorrect password length" error messages.
76 * Save the right case for the located user name in
77 fill_sam_account(). Fixes %U/%u expansion for win9x clients.
78 * BUG 897: Add well known rid for pre win2k compatible access
80 * BUG 887: Correct typo in delete user script example.
81 * Use short lived TALLOC_CTX* for allocating printer objects
82 from the print handle cache.
85 o Guenther Deschner <gd@suse.com>
86 * Install smbwrapper.so should be put into the $(libdir)
88 * Add the capability to specify the new user password
89 for 'net ads password' on the command line.
90 * Correctly detect AFS headers on SuSE
92 o James Flemer <jflemer@uvm.edu>
93 * Fix AIX compile bug by linking HAVE_ATTR_LIST to HAVE_SYS_ATTRIBUTES_H.
96 o Volker Lendecke <vl@samba.org>
97 * BUG 583: Ensure that user names always contain the short version
99 * Fix our parsing of the LDAP uri.
100 * Don't show the 'afs username map' in the SWAT basic view.
101 * Fix SMB signing issues in relation to failed NTLMSSP logins.
102 * BUG 924: Fix return codes in smbtorture harness.
103 * Always lower-case usernames before handing it to AFS code.
106 o Jianliang Lu <j.lu@tiesse.com>
107 * Ensure we delete the group mapping before calling the delete
109 * Define well known RID for managing the "Power Users" group.
112 o Stefan Metzmacher <metze@metzemix.de>
113 * Implement LDAP rebind sleep patch.
114 * Revert to 2.2 quota code because of so many broken quota files
117 o Tim Potter <tpot@samba.org>
118 * BUG 924: Fix typo in RW2 torture test.
120 o Richard Sharpe <shape@samba.org>
121 * Small fixes to torture.c to cleanup the error handling
125 o J. Tournier <jerome.tournier@IDEALX.com>
126 * Small fixes for the smbldap-tool scripts.
129 o Jelmer Vernooij <jelmer@samba.org>
130 * Put functions for generating SQL queries in pdb_sql.c
131 * Add pgSQL backend (based on patch by Hamish Friedlander)
133 o James Peach <jpeach@sgi.com>
134 * Change smbd to use pread/pwrite on platforms that support
135 these calls. Can lead to a significant speed increase.
139 ----------------------
141 Parameter Name Action
142 -------------- ------
143 hide local users Removed
144 mangled map Deprecated
145 mangled stack Removed
146 passwd chat timeout New
151 o Change the interface for init_unistr2 to not take a length
152 but a flags field. We were assuming that
153 2*strlen(mb_string) == length of ucs2-le string. (bug 480).
154 o Allow d_printf() to handle strings with escaped quotation
155 marks since the msg file includes the escape character (bug 489).
156 o Fix bad html table row termination in SWAT wizard code (bug 413).
157 o Fix to parse the level-2 strings.
158 o Fix for "valid users = %S" in [homes]. Fix read/write
160 o Change AC_CHECK_LIB_EXT to prepend libraries instead of append.
161 This is the same way AC_CHECK_LIB works (bug 508).
162 o Testparm output fixes for clarity.
163 o Fix broken wins hook functionality -- i18n bug (bug 528).
164 o Take care of condition where DOS and NT error codes must differ.
165 o Default to using only built-in charsets when a working iconv
166 implementation cannot be located.
167 o Wrap internals of sys_setgroups() so the sys_XX() call can
168 be done unconditionally (bug 550).
169 o Remove duplicate smbspool link on SWAT's front page (bug 541).
170 o Save and restore CFLAGS before/after AC_PROG_CC. Ensures that
171 --enable-debug=[yes|no] works correctly.
172 o Allow ^C to interrupt smbpasswd if using our getpass
173 (e.g. smbpasswd command).
174 o Support signing only on RPC's (bug 167).
175 o Correct bug that prevented Excel 2000 clients from opening
176 files marked as read-only.
177 o Portability fix bugs 546 - 549).
178 o Explicitly initialize the value of AR for vendor makes that don't
179 do this (e.g. HPUX 11). (bug 552).
180 o More i18n fixes for SWAT (bug 413).
181 o Change the cwd before the postexec script to ensure that a
183 o Correct double free that caused winbindd to crash when a DC
184 is rebooted (bug 437).
185 o Fix incorrect mode sum (bug 562).
186 o Canonicalize SMB_INFO_ALLOCATION in the same was as
187 SMB_FS_FULL_SIZE_INFORMATION (bug 564).
188 o Add script to generate *msg files.
189 o Add Dutch SWAT translation file.
190 o Make sure to call get_user_groups() with the full winbindd
191 name for a user if he/she has one (bug 406).
192 o Fix up error code returns from Samba4 tester. Ensure invalid
193 paths are validated the same way.
194 o Allow Samba3 to pass the Samba4 RAW-READ tests.
195 o Refuse to configure if --with-expsam=$BACKEND was used but no
196 libraries were found for $BACKEND.
197 o Move sysquotas autoconf tests to a separate file.
198 o Match W2K w.r.t. writelock and writeclose. Samba4 torture
200 o Make sure that the files that contain the static_init_$subsystem;
201 macro get recompiled after configure by removing the object
203 o Ensure canceling a blocking lock returns the correct error
205 o Match Samba 2.2 behavior; make ACB_NORMAL the default ACB value.
206 o Updated Japanese welcome file in SWAT.
207 o Fix to nt-time <-> unix-time functions reversible.
208 o Ensure that winbindd uses the the escaped DN when querying
210 o Fix portability issues when compiling (bug 505, 550)
211 o Compile fix for tdbbackup when Samba needs to override
212 non-C99 compliant implementations of snprintf().
213 o Use @PICSUFFIX@ instead of .po in Makefile.in (bug 574).
214 o Make sure we break out of samsync loop on error.
215 o Ensure error code path doesn't free unmalloc()'d memory
217 o Add configure test for krb5_keytab_entry keyblock vs key
220 o Modified testparm so that all output so all debug output goes
221 to stderr, and all file processing goes to stdout.
222 o Fix error return code for BUFFER_TOO_SMALL in smbcacls
224 o Fix "NULL dest in safe_strcpy()" log message by ensuring that
225 we have a devmode before copying a string to the devicename.
226 o Support mapping REALM.COM\user to a local user account (without
227 running winbindd) for compatibility with 2.2.x release.
228 o Ensure we don't use mmap() on blacklisted systems.
229 o fixed a number of bugs and memory leaks in the AIX
231 o Call initgroups() in SWAT before becomming the user so that
232 secondary group permissions can be used when writing to
234 o Fix signing problems when reverse connecting back to a
235 client for printer notify
236 o Fix signing problems caused by a miss-sequence bug.
237 o Missing map in errormap for ERROR_MORE_DATA -> ERRDOS, ERRmoredata.
238 Fixes NEXUS tools running on Win9x clients (bug 64).
239 o Don't leave the domain field uninitialized in cli_lsa.c if some
240 SID could not be mapped.
241 o Fix segfault in mount.cifs helper when there is no options
242 specified during mount.
243 o Change the \n after the password prompt to go to tty instead
245 o Stop net -P from prompting for machine account password (bug 451).
246 o Change in behavior to Not only change the effective uid but also
247 the real uid when becoming unprivileged.
248 o Cope with Exchange 5.5 cleartext pop password auth.
249 o New files for support of initshutdown pipe. Win2k doesn't
250 respond properly to all requests on the winreg pipe, so we need
251 to handle this new pipe (bug 534).
252 o Added more va_copy() checks in configure.in.
253 o Include fixes for libsmbclient build problems.
254 o Missing UNIX -> DOS codepage conversion in lanman.c.
255 o Allow DFMS-S filenames can now have arbitrary case (bug 667).
256 o Parameterize the listen backlog in smbd and make it larger by
257 default. A backlog of 5 is way too small these days.
258 o Check for an invalid fid before dereferencing the fsp pointer
260 o Remove invalid memory frees and return codes in pdb_ldap.c.
261 o Prompt for password when invoking --set-auth-user and no
263 o Bind the nmbd sending socket to the 'socket address'.
264 o Re-order link command for smbd, rpcclient and smbpasswd to ensure
265 $LDFLAGS occurs before any library specification (bug 661).
266 o Fix large number of printf() calls for 64-bit size_t.
267 o Fix AC_CHECK_MEMBER so that SLES8 does correctly finds the
268 keyblock in the krb5 structs.
269 o Remove #include <compat.h> in hopes to avoid problems with
271 o Correct winbindd build problems on HP-UX 11.
272 o Lowercase netgroups lookups (bug 703).
273 o Use the actual size of the buffer in strftime instead of a made
274 up value which just happens to be less than sizeof(fstring).
276 o Add ldaplibs to pdbedit link line (bug 651).
277 o Fix crash bug in smbclient completion (bug 659).
278 o Fix packet length for browse list reply (bug 771).
279 o Fix coredump in cli_get_backup_list().
280 o Make sure that we expand %N (bug 612).
281 o Allow rpcclient adddriver command to specify printer driver
283 o Compile tdbdump by default.
284 o Apply patches to fix iconv detection for FreeBSD.
285 o Do not allow the 'guest account' to be added to a passdb backend
286 using smbpasswd or pdbedit (bug 624).
287 o Save LDFLAGS during iconv detection (bug 57).
288 o Run krb5 logins through the username map if the winbindd
289 lookup fails (bug 698).
290 o Add const for lp_set_name_resolve_order() to avoid compiler
292 o Add support for the %i macro in smb.conf to stand in for the for
293 the local IP address to which a client connected.
294 o Allow winbindd to match local accounts to domain SID when
295 'winbind trusted domains only = yes' (bug 680).
296 o Remove code in idmap_ldap that searches the user suffix and group
297 suffix. It's not needed and provides inconsistent functionality
298 from the tdb backend.
299 o Patch to handle munged dial string for Windows 200 TSE.
300 o Correct the "smbldap_open: cannot access when not root error"
301 messages when looking up group information (bug 281).
302 o Skip over the winbind separator when looking up a user.
303 This fixes the bug that prevented local users from
304 matching an AD user when not running winbindd (bug 698).
305 o Fix a problem with configure on *BSD systems. Make sure
306 we add -liconv etc to LDFLAGS.
307 o Fix core dump bug when "security = server" and the authentication
309 o Correct crash bug due to an empty munged dial string.
310 o Show files locked by a specific user (smbstatus -u 'user')
312 o Fix bug preventing print jobs from display in the queue
313 monitor used by Windows NT and later clients (bug 660).
314 o Fix several reported problems with point-n-print from
315 Windows 2000/XP clients due to a bug in the EnumPrinterDataEx()
316 reply (bug 338, 527 & 643).
317 o Fix a handful of potential memory leaks in the LDAP code used
318 by ldapsam[_compat] and the LDAP idmap backend.
319 o Fix for pdbedit error code returns (bug 763).
320 o Make sure we only enumerate group mapping entries (not
321 /etc/group) even when doing local aliases.
322 o Relax check on the pipe name in a dce/rpc bind response to work
323 around issues with establishing trusts to a Windows 2003 domain.
324 o Ensure we mangle names ending in '.' in hash2 mangling method.
325 o Correct parsing issues with munged dial string.
326 o Fix bugs in quota support for XFS.
327 o Add a cleaner method for applications that need to provide name->SID
328 mappings to do this via NSS rather than having to know the
329 winbindd pipe protocol.
330 o Adds a variant of the winbindd_getgroups() call called
331 winbindd_getusersids() that provides direct SID->SIDs listing of a
332 users supplementary groups. This is enough to allow non-Samba
333 applications to do ACL checking.
334 o Make sure we don't append the 'ldap suffix' when writing out the
335 'ldap XXX suffix' values in SWAT (bug 328).
336 o Fix renames across file systems.
337 o Ensure that items in a list of strings containing whitespace are
338 written out surrounded by single quotes. This means that both
339 double and single quotes are now used to surround strings in
341 o Enable SWAT to correctly determine if winbindd is running (bug
343 o Include WWW-Authenticate field in 401 response for bad auth
345 o Add support for NTLM2 (NTLMv2 session security).
346 o Add support for variable-length session keys.
347 o More privilege fixes for group enumeration in LDAP (bug 281).
348 o Use the dns name (or IP) as the originating client name when
349 using CUPS (bug 467).
350 o Fix various SMB signing bugs.
351 o Fix ACL propagation on a DFS root (bug 263).
352 o Disable NTLM2 for RPC pipes.
353 o Allow the client to specify the NTLM2 flags got NTLMSSP
355 o Change the name of the job passed off to cups from "Test Page" to
356 "smbprn.00000033 Test Page" so that we can get the smb jobid back.
357 This allow users to delete jobs with cups printing backend (partial
359 o Fix build of winbindd with static pdb modules.
360 o Retrieve the correct ACL group bits if the file has an ACL
362 o Implement "net rpc group members": Get members of a domain group
363 in human-readable format.
364 o Add MacOSX (Darwin) specific charset module code.
365 o Use samr_dispinfo(level == 1) for enumerating domain users so we
366 can include the full name in gecos field (bug 587).
367 o Add support for winbind's NSS library on FeeeBSD 5.1 (bug 797).
368 o Implement 'net rpc group list [global|local|builtin]*' for a
369 select listing of the respective user databases.
370 o Don't automatically set NT status code flag unless client tells
372 o Add 'net status [sessions|shares] [parseable]'.
373 o Don't mistake pre-existing UNIX jobs for smb jobs (remainder of
375 o Add 'Replicator' and 'RAS Servers' to list of builtin SIDs
377 o Fix inverted logic in hosts allow/deny checks caused by s/strcmp/strequal/
379 o Implement correct version SamrRemoveSidForeignDomain() (bug 252).
380 o Fix typo in 'hash' mangling algorithm.
381 o Support munged dial for ldapsam (bug 800).
382 o Fix process_incoming_data() to return the number of bytes handled this
383 call whether we have a complete PDU or not; fixes bug with multiple
384 PDU request rpc's broken over SMBwriteX calls each.
385 o Fix incorrect smb flags2 for connections to pre-NT servers (causes
386 smbclient to fail to OS2 for example) (bug 821).
387 o Update version string in smbldap-tools Makefile to 0.8.2.
388 o Correct a problem with "net rpc vampire" mis-parsing the
389 alias member info reply.
390 o Ensure the ${libdir} is created by the installclientlib script.
391 o Fix detection of Windows 2003 client architecture in the smb.conf
393 o Ensure that smbd calls the add user script for a missing UNIX
394 user on kerberos auth call (bug 445).
395 o Fix bugs in hosts allow/deny when using a mismatched
396 network/netmask pair.
397 o Protect alloc_sub_basic() from crashing when the source string
398 is NULL (partial work on bug 687).
399 o Fix spinlocks on IRIX.
400 o Corrected some bad destination paths when running "configure
402 o Add packaging files for Fedora Core 1.
403 o Correct bug in SWAT install script for non-english languages.
404 o Support character set ISO-8859-1 internally (bug 558).
405 o Fixed more LDAP access errors when looking up group mappings
407 o Fix UNISTR2 length bug in LsaQueryInfo(3) that caused SID
408 resolution to fail on local files on on domain members
410 o Fix uninitialized variable in passdb.c.
411 o Fix formal parameter type in get_static() in nsswitch/wins.c.
412 o Fix problem mounting directories when mount.cifs is installed
413 with the setuid bit on.
414 o Fix bug that prevent --mandir from overriding the defaults
415 given in the --with-fhs macro.
416 o Fix bug in in-memory Kerberos keytab detection routines
420 ######################################################################
422 =======================================
423 The original 3.0.0 release notes follow
424 =======================================
430 1) Active Directory support. Samba 3.0 is now able to
431 join a ADS realm as a member server and authenticate
432 users using LDAP/Kerberos.
434 2) Unicode support. Samba will now negotiate UNICODE on the wire
435 and internally there is now a much better infrastructure for
436 multi-byte and UNICODE character sets.
438 3) New authentication system. The internal authentication system
439 has been almost completely rewritten. Most of the changes are
440 internal, but the new auth system is also very configurable.
442 4) New default filename mangling system.
444 5) A new "net" command has been added. It is somewhat similar to
445 the "net" command in windows. Eventually we plan to replace
446 numerous other utilities (such as smbpasswd) with subcommands
449 6) Samba now negotiates NT-style status32 codes on the wire. This
450 improves error handling a lot.
452 7) Better Windows 2000/XP/2003 printing support including publishing
453 printer attributes in active directory.
455 8) New loadable module support for passdb backends and character
458 9) New default dual-daemon winbindd support for better performance.
460 10) Support for migrating from a Windows NT 4.0 domain to a Samba
461 domain and maintaining user, group and domain SIDs.
463 11) Support for establishing trust relationships with Windows NT 4.0
466 12) Initial support for a distributed Winbind architecture using
467 an LDAP directory for storing SID to uid/gid mappings.
469 13) Major updates to the Samba documentation tree.
471 14) Full support for client and server SMB signing to ensure
472 compatibility with default Windows 2003 security settings.
474 15) Improvement of ACL mapping features based on code donated by
478 Plus lots of other improvements!
481 Additional Documentation
482 ------------------------
484 Please refer to Samba documentation tree (included in the docs/
485 subdirectory) for extensive explanations of installing, configuring
486 and maintaining Samba 3.0 servers and clients. It is advised to
487 begin with the Samba-HOWTO-Collection for overviews and specific
488 tasks (the current book is up to approximately 400 pages) and to
489 refer to the various man pages for information on individual options.
491 We are very glad to be able to include the second edition of
492 "Using Samba" by Jay Ts, Robert Eckstein, and David Collier-Brown
493 (O'Reilly & Associates) in this release. The book is available
494 on-line at http://samba.org/samba/docs/ and is included with
495 the Samba Web Administration Tool (SWAT). Thanks to the authors and
496 publisher for making "Using Samba" under the GNU Free Documentation
500 ######################################################################
501 Upgrading from a previous Samba 3.0 beta
502 ########################################
504 Beginning with Samba 3.0.0beta3, the RID allocation functions
505 have been moved into winbindd. Previously these were handled
506 by each passdb backend. This means that winbindd must be running
507 to automatically allocate RIDs for users and/or groups. Otherwise,
508 smbd will use the 2.2 algorithm for generating new RIDs.
510 If you are using 'passdb backend = tdbsam' with a previous Samba
511 3.0 beta release (or possibly alpha), it may be necessary to
512 move the RID_COUNTER entry from /usr/local/samba/private/passdb.tdb
513 to winbindd_idmap.tdb. To do this:
515 1) Ensure that winbindd_idmap.tdb exists (launch winbindd at least
517 2) build tdbtool by executing 'make tdbtool' in the source/tdb/
519 3) run: (note that 'tdb>' is the tool's prompt for input)
521 root# ./tdbtool /usr/local/samba/private/passdb.tdb
522 tdb> show RID_COUNTER
526 [000] 0A 52 00 00 .R.
528 tdb> move RID_COUNTER /usr/local/samba/var/locks/winbindd_idmap.tdb
532 If you are using 'passdb backend = ldapsam', it will be necessary to
533 store idmap entries in the LDAP directory as well (i.e. idmap backend
534 = ldap). Refer to the 'net idmap' command for more information on
535 migrating SID<->UNIX id mappings from one backend to another.
537 If the RID_COUNTER record does not exist, then these instructions are
538 unneccessary and the new RID_COUNTER record will be correctly generated
543 ########################
544 Upgrading from Samba 2.2
545 ########################
547 This section is provided to help administrators understand the details
548 involved with upgrading a Samba 2.2 server to Samba 3.0.
554 Many of the options to the GNU autoconf script have been modified
555 in the 3.0 release. The most noticeable are:
557 * removal of --with-tdbsam (is now included by default; see section
558 on passdb backends and authentication for more details)
560 * --with-ldapsam is now on used to provided backward compatible
561 parameters for LDAP enabled Samba 2.2 servers. Refer to the passdb
562 backend and authentication section for more details
564 * inclusion of non-standard passdb modules may be enabled using
565 --with-expsam. This includes an XML backend and a mysql backend.
567 * removal of --with-msdfs (is now enabled by default)
569 * removal of --with-ssl (no longer supported)
571 * --with-utmp now defaults to 'yes' on supported systems
573 * --with-sendfile-support is now enabled by default on supported
580 This section contains a brief listing of changes to smb.conf options
581 in the 3.0.0 release. Please refer to the smb.conf(5) man page for
582 complete descriptions of new or modified parameters.
584 Removed Parameters (order alphabetically):
587 * alternate permissions
590 * code page directory
594 * force unknown acl user
599 * printer driver file
600 * printer driver location
608 New Parameters (new parameters have been grouped by function):
612 * abort shutdown script
615 User and Group Account Management
616 ---------------------------------
619 * add user to group script
620 * algorithmic rid base
621 * delete group script
622 * delete user from group script
624 * set primary group script
630 * passwd chat timeout
641 * paranoid server security
651 * hide unwriteable files
653 * kernel change notify
663 * max reported print jobs
665 UNICODE and Character Sets
666 --------------------------
672 SID to uid/gid Mappings
673 -----------------------
677 * winbind enable local accounts
678 * winbind trusted domains only
679 * template primary group
680 * enable rid algorithm
687 * ldap machine suffix
691 General Configuration
692 ---------------------
696 Modified Parameters (changes in behavior):
698 * encrypt passwords (enabled by default)
699 * mangling method (set to 'hash2' by default)
702 * restrict anonymous (integer value)
703 * security (new 'ads' value)
704 * strict locking (enabled by default)
705 * unix extensions (enabled by default)
706 * winbind cache time (increased to 5 minutes)
707 * winbind uid (deprecated in favor of 'idmap uid')
708 * winbind gid (deprecated in favor of 'idmap gid')
714 This section contains brief descriptions of any new databases
715 introduced in Samba 3.0. Please remember to backup your existing
716 ${lock directory}/*tdb before upgrading to Samba 3.0. Samba will
717 upgrade databases as they are opened (if necessary), but downgrading
718 from 3.0 to 2.2 is an unsupported path.
720 Name Description Backup?
721 ---- ----------- -------
722 account_policy User policy settings yes
723 gencache Generic caching db no
724 group_mapping Mapping table from Windows yes
725 groups/SID to unix groups
726 winbindd_idmap ID map table from SIDS to UNIX yes
728 namecache Name resolution cache entries no
729 netsamlogon_cache Cache of NET_USER_INFO_3 structure no
730 returned as part of a successful
731 net_sam_logon request
732 printing/*.tdb Cached output from 'lpq no
733 command' created on a per print
735 registry Read-only samba registry skeleton no
736 that provides support for exporting
737 various db tables via the winreg RPCs
743 The following issues are known changes in behavior between Samba 2.2 and
744 Samba 3.0 that may affect certain installations of Samba.
746 1) When operating as a member of a Windows domain, Samba 2.2 would
747 map any users authenticated by the remote DC to the 'guest account'
748 if a uid could not be obtained via the getpwnam() call. Samba 3.0
749 rejects the connection as NT_STATUS_LOGON_FAILURE. There is no
750 current work around to re-establish the 2.2 behavior.
752 2) When adding machines to a Samba 2.2 controlled domain, the
753 'add user script' was used to create the UNIX identity of the
754 machine trust account. Samba 3.0 introduces a new 'add machine
755 script' that must be specified for this purpose. Samba 3.0 will
756 not fall back to using the 'add user script' in the absence of
757 an 'add machine script'
760 ######################################################################
761 Passdb Backends and Authentication
762 ##################################
764 There have been a few new changes that Samba administrators should be
765 aware of when moving to Samba 3.0.
767 1) encrypted passwords have been enabled by default in order to
768 inter-operate better with out-of-the-box Windows client
769 installations. This does mean that either (a) a samba account
770 must be created for each user, or (b) 'encrypt passwords = no'
771 must be explicitly defined in smb.conf.
773 2) Inclusion of new 'security = ads' option for integration
774 with an Active Directory domain using the native Windows
775 Kerberos 5 and LDAP protocols.
777 MIT kerberos 1.3.1 supports the ARCFOUR-HMAC-MD5 encryption
778 type which is neccessary for servers on which the
779 administrator password has not been changed, or kerberos-enabled
780 SMB connections to servers that require Kerberos SMB signing.
781 Besides this one difference, either MIT or Heimdal Kerberos
782 distributions are usable by Samba 3.0.
785 Samba 3.0 also includes the possibility of setting up chains
786 of authentication methods (auth methods) and account storage
787 backends (passdb backend). Please refer to the smb.conf(5)
788 man page for details. While both parameters assume sane default
789 values, it is likely that you will need to understand what the
790 values actually mean in order to ensure Samba operates correctly.
792 The recommended passdb backends at this time are
794 * smbpasswd - 2.2 compatible flat file format
795 * tdbsam - attribute rich database intended as an smbpasswd
796 replacement for stand alone servers
797 * ldapsam - attribute rich account storage and retrieval
798 backend utilizing an LDAP directory.
799 * ldapsam_compat - a 2.2 backward compatible LDAP account
802 Certain functions of the smbpasswd(8) tool have been split between the
803 new smbpasswd(8) utility, the net(8) tool, and the new pdbedit(8)
804 utility. See the respective man pages for details.
807 ######################################################################
811 This section outlines the new features affecting Samba / LDAP
817 A new object class (sambaSamAccount) has been introduced to replace
818 the old sambaAccount. This change aids us in the renaming of attributes
819 to prevent clashes with attributes from other vendors. There is a
820 conversion script (examples/LDAP/convertSambaAccount) to modify and LDIF
821 file to the new schema.
825 $ ldapsearch .... -b "ou=people,dc=..." > old.ldif
826 $ convertSambaAccount <DOM SID> old.ldif new.ldif
828 The <DOM SID> can be obtained by running 'net getlocalsid <DOMAINNAME>'
829 on the Samba PDC as root.
831 The old sambaAccount schema may still be used by specifying the
832 "ldapsam_compat" passdb backend. However, the sambaAccount and
833 associated attributes have been moved to the historical section of
834 the schema file and must be uncommented before use if needed.
835 The 2.2 object class declaration for a sambaAccount has not changed
836 in the 3.0 samba.schema file.
838 Other new object classes and their uses include:
840 * sambaDomain - domain information used to allocate rids
841 for users and groups as necessary. The attributes are added
842 in 'ldap suffix' directory entry automatically if
843 an idmap uid/gid range has been set and the 'ldapsam'
844 passdb backend has been selected.
846 * sambaGroupMapping - an object representing the
847 relationship between a posixGroup and a Windows
848 group/SID. These entries are stored in the 'ldap
849 group suffix' and managed by the 'net groupmap' command.
851 * sambaUnixIdPool - created in the 'ldap idmap suffix' entry
852 automatically and contains the next available 'idmap uid' and
855 * sambaIdmapEntry - object storing a mapping between a
856 SID and a UNIX uid/gid. These objects are created by the
857 idmap_ldap module as needed.
859 * sambaSidEntry - object representing a SID alone, as a Structural
860 class on which to build the sambaIdmapEntry.
863 New Suffix for Searching
864 ------------------------
866 The following new smb.conf parameters have been added to aid in directing
867 certain LDAP queries when 'passdb backend = ldapsam://...' has been
870 * ldap suffix - used to search for user and computer accounts
871 * ldap user suffix - used to store user accounts
872 * ldap machine suffix - used to store machine trust accounts
873 * ldap group suffix - location of posixGroup/sambaGroupMapping entries
874 * ldap idmap suffix - location of sambaIdmapEntry objects
876 If an 'ldap suffix' is defined, it will be appended to all of the
877 remaining sub-suffix parameters. In this case, the order of the suffix
878 listings in smb.conf is important. Always place the 'ldap suffix' first
881 Due to a limitation in Samba's smb.conf parsing, you should not surround
882 the DN's with quotation marks.
888 Samba 3.0 supports an ldap backend for the idmap subsystem. The
889 following options would inform Samba that the idmap table should be
890 stored on the directory server onterose in the "ou=idmap,dc=plainjoe,
895 idmap backend = ldap:ldap://onterose/
896 ldap idmap suffix = ou=idmap,dc=plainjoe,dc=org
897 idmap uid = 40000-50000
898 idmap gid = 40000-50000
900 This configuration allows winbind installations on multiple servers to
901 share a uid/gid number space, thus avoiding the interoperability problems
902 with NFS that were present in Samba 2.2.
906 ######################################################################
907 Trust Relationships and a Samba Domain
908 ######################################
910 Samba 3.0.0beta2 is able to utilize winbindd as the means of
911 allocating uids and gids to trusted users and groups. More
912 information regarding Samba's support for establishing trust
913 relationships can be found in the Samba-HOWTO-Collection included
914 in the docs/ directory of this release.
916 First create your Samba PDC and ensure that everything is
917 working correctly before moving on the trusts.
919 To establish Samba as the trusting domain (named SAMBA) from a Windows NT
920 4.0 domain named WINDOWS:
922 1) create the trust account for SAMBA in "User Manager for Domains"
923 2) connect the trust from the Samba domain using
924 'net rpc trustdom establish GLASS'
926 To create a trustlationship with SAMBA as the trusted domain:
928 1) create the initial trust account for GLASS using
929 'smbpasswd -a -i GLASS'. You may need to create a UNIX
930 account for GLASS$ prior to this step (depending on your
931 local configuration).
932 2) connect the trust from a WINDOWS DC using "User Manager
935 Now join winbindd on the Samba PDC to the SAMBA domain using
936 the normal steps for adding a Samba server to an NT4 domain:
937 (note that smbd & nmbd must be running at this point)
939 root# net rpc join -U root
940 Password: <enter root password from smbpasswd file here>
942 Start winbindd and test the join with 'wbinfo -t'.
944 Now test the trust relationship by connecting to the SAMBA DC
945 (e.g. POGO) as a user from the WINDOWS domain:
947 $ smbclient //pogo/netlogon -U Administrator -W WINDOWS
950 Now connect to the WINDOWS DC (e.g. CRYSTAL) as a Samba user:
952 $ smbclient //crystal/netlogon -U root -W WINDOWS
955 ######################################################################
959 Beginning with Samba3.0.0beta3, winbindd has been given new account
960 manage functionality equivalent to the 'add user script' family of
961 smb.conf parameters. The idmap design has also been changed to
962 centralize control of foreign SID lookups and matching to UNIX
966 Brief Description of Changes
967 ----------------------------
969 1) The sid_to_uid() family of functions (smbd/uid.c) have been
970 reverted to the 2.2.x design. This means that when resolving a
971 SID to a UID or similar mapping:
973 a) First consult winbindd
974 b) perform a local lookup only if winbindd fails to
975 return a successful answer
977 There are some variations to this, but these two rules generally
980 2) All idmap lookups have been moved into winbindd. This means that
981 a server must run winbindd (and support NSS) in order to achieve
982 any mappings of SID to dynamically allocated UNIX ids. This was
983 a conscious design choice.
985 3) New functions have been added to winbindd to emulate the 'add user
986 script' family of smbd functions without requiring that external
987 scripts be defined. This functionality is controlled by the 'winbind
988 enable local accounts' smb.conf parameter (enabled by default).
990 However, this account management functionality is only supported
991 in a local tdb (winbindd_idmap.tdb). If these new UNIX accounts
992 must be shared among multiple Samba servers (such as a PDC and BDCs),
993 it will be necessary to define your own 'add user script', et. al.
994 programs that place the accounts/groups in some form of directory
995 such as NIS or LDAP. This requirement was deemed beyond the scope
996 of winbind's account management functions. Solutions for
997 distributing UNIX system information have been deployed and tested
998 for many years. We saw no need to reinvent the wheel.
1000 4) A member of a Samba controlled domain running winbindd is now able
1001 to map domain users directly onto existing UNIX accounts while still
1002 automatically creating accounts for trusted users and groups. This
1003 behavior is controlled by the 'winbind trusted domains only' smb.conf
1004 parameter (disabled by default to provide 2.2.x winbind behavior).
1006 5) Group mapping support is wrapped in the local_XX_to_XX() functions
1007 in smbd/uid.c. The reason that group mappings are not included
1008 in winbindd is because the purpose of Samba's group map is to
1009 match any Windows SID with an existing UNIX group. These UNIX
1010 groups can be created by winbindd (see next section), but the
1011 SID<->gid mapping is retreived by smbd, not winbindd.
1017 * security = server running winbindd to allocate accounts on demand
1019 * Samba PDC running winbindd to handle the automatic creation of UNIX
1020 identities for machine trust accounts
1022 * Automtically creating UNIX user and groups when migrating a Windows NT
1023 4.0 PDC to a Samba PDC. Winbindd must be running when executing
1024 'net rpc vampire' for this to work.
1027 ######################################################################
1031 * There are several bugs currently logged against the 3.0 codebase
1032 that affect the use of NT 4.0 GUI domain management tools when run
1033 against a Samba 3.0 PDC. This bugs should be released in an early
1036 Please refer to https://bugzilla.samba.org/ for a current list of bugs
1037 filed against the Samba 3.0 codebase.
1040 ######################################################################
1041 Reporting bugs & Development Discussion
1042 #######################################
1044 Please discuss this release on the samba-technical mailing list or by
1045 joining the #samba-technical IRC channel on irc.freenode.net.
1047 If you do report problems then please try to send high quality
1048 feedback. If you don't provide vital information to help us track down
1049 the problem then you will probably be ignored.
1051 A new bugzilla installation has been established to help support the
1052 Samba 3.0 community of users. This server, located at
1053 https://bugzilla.samba.org/, has replaced the older jitterbug server
1054 previously located at http://bugs.samba.org/.