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)
136 ----------------------
138 Parameter Name Action
139 -------------- ------
140 hide local users Removed
141 mangled map Deprecated
142 mangled stack Removed
143 passwd chat timeout New
148 o Change the interface for init_unistr2 to not take a length
149 but a flags field. We were assuming that
150 2*strlen(mb_string) == length of ucs2-le string. (bug 480).
151 o Allow d_printf() to handle strings with escaped quotation
152 marks since the msg file includes the escape character (bug 489).
153 o Fix bad html table row termination in SWAT wizard code (bug 413).
154 o Fix to parse the level-2 strings.
155 o Fix for "valid users = %S" in [homes]. Fix read/write
157 o Change AC_CHECK_LIB_EXT to prepend libraries instead of append.
158 This is the same way AC_CHECK_LIB works (bug 508).
159 o Testparm output fixes for clarity.
160 o Fix broken wins hook functionality -- i18n bug (bug 528).
161 o Take care of condition where DOS and NT error codes must differ.
162 o Default to using only built-in charsets when a working iconv
163 implementation cannot be located.
164 o Wrap internals of sys_setgroups() so the sys_XX() call can
165 be done unconditionally (bug 550).
166 o Remove duplicate smbspool link on SWAT's front page (bug 541).
167 o Save and restore CFLAGS before/after AC_PROG_CC. Ensures that
168 --enable-debug=[yes|no] works correctly.
169 o Allow ^C to interrupt smbpasswd if using our getpass
170 (e.g. smbpasswd command).
171 o Support signing only on RPC's (bug 167).
172 o Correct bug that prevented Excel 2000 clients from opening
173 files marked as read-only.
174 o Portability fix bugs 546 - 549).
175 o Explicitly initialize the value of AR for vendor makes that don't
176 do this (e.g. HPUX 11). (bug 552).
177 o More i18n fixes for SWAT (bug 413).
178 o Change the cwd before the postexec script to ensure that a
180 o Correct double free that caused winbindd to crash when a DC
181 is rebooted (bug 437).
182 o Fix incorrect mode sum (bug 562).
183 o Canonicalize SMB_INFO_ALLOCATION in the same was as
184 SMB_FS_FULL_SIZE_INFORMATION (bug 564).
185 o Add script to generate *msg files.
186 o Add Dutch SWAT translation file.
187 o Make sure to call get_user_groups() with the full winbindd
188 name for a user if he/she has one (bug 406).
189 o Fix up error code returns from Samba4 tester. Ensure invalid
190 paths are validated the same way.
191 o Allow Samba3 to pass the Samba4 RAW-READ tests.
192 o Refuse to configure if --with-expsam=$BACKEND was used but no
193 libraries were found for $BACKEND.
194 o Move sysquotas autoconf tests to a separate file.
195 o Match W2K w.r.t. writelock and writeclose. Samba4 torture
197 o Make sure that the files that contain the static_init_$subsystem;
198 macro get recompiled after configure by removing the object
200 o Ensure canceling a blocking lock returns the correct error
202 o Match Samba 2.2 behavior; make ACB_NORMAL the default ACB value.
203 o Updated Japanese welcome file in SWAT.
204 o Fix to nt-time <-> unix-time functions reversible.
205 o Ensure that winbindd uses the the escaped DN when querying
207 o Fix portability issues when compiling (bug 505, 550)
208 o Compile fix for tdbbackup when Samba needs to override
209 non-C99 compliant implementations of snprintf().
210 o Use @PICSUFFIX@ instead of .po in Makefile.in (bug 574).
211 o Make sure we break out of samsync loop on error.
212 o Ensure error code path doesn't free unmalloc()'d memory
214 o Add configure test for krb5_keytab_entry keyblock vs key
217 o Modified testparm so that all output so all debug output goes
218 to stderr, and all file processing goes to stdout.
219 o Fix error return code for BUFFER_TOO_SMALL in smbcacls
221 o Fix "NULL dest in safe_strcpy()" log message by ensuring that
222 we have a devmode before copying a string to the devicename.
223 o Support mapping REALM.COM\user to a local user account (without
224 running winbindd) for compatibility with 2.2.x release.
225 o Ensure we don't use mmap() on blacklisted systems.
226 o fixed a number of bugs and memory leaks in the AIX
228 o Call initgroups() in SWAT before becomming the user so that
229 secondary group permissions can be used when writing to
231 o Fix signing problems when reverse connecting back to a
232 client for printer notify
233 o Fix signing problems caused by a miss-sequence bug.
234 o Missing map in errormap for ERROR_MORE_DATA -> ERRDOS, ERRmoredata.
235 Fixes NEXUS tools running on Win9x clients (bug 64).
236 o Don't leave the domain field uninitialized in cli_lsa.c if some
237 SID could not be mapped.
238 o Fix segfault in mount.cifs helper when there is no options
239 specified during mount.
240 o Change the \n after the password prompt to go to tty instead
242 o Stop net -P from prompting for machine account password (bug 451).
243 o Change in behavior to Not only change the effective uid but also
244 the real uid when becoming unprivileged.
245 o Cope with Exchange 5.5 cleartext pop password auth.
246 o New files for support of initshutdown pipe. Win2k doesn't
247 respond properly to all requests on the winreg pipe, so we need
248 to handle this new pipe (bug 534).
249 o Added more va_copy() checks in configure.in.
250 o Include fixes for libsmbclient build problems.
251 o Missing UNIX -> DOS codepage conversion in lanman.c.
252 o Allow DFMS-S filenames can now have arbitrary case (bug 667).
253 o Parameterize the listen backlog in smbd and make it larger by
254 default. A backlog of 5 is way too small these days.
255 o Check for an invalid fid before dereferencing the fsp pointer
257 o Remove invalid memory frees and return codes in pdb_ldap.c.
258 o Prompt for password when invoking --set-auth-user and no
260 o Bind the nmbd sending socket to the 'socket address'.
261 o Re-order link command for smbd, rpcclient and smbpasswd to ensure
262 $LDFLAGS occurs before any library specification (bug 661).
263 o Fix large number of printf() calls for 64-bit size_t.
264 o Fix AC_CHECK_MEMBER so that SLES8 does correctly finds the
265 keyblock in the krb5 structs.
266 o Remove #include <compat.h> in hopes to avoid problems with
268 o Correct winbindd build problems on HP-UX 11.
269 o Lowercase netgroups lookups (bug 703).
270 o Use the actual size of the buffer in strftime instead of a made
271 up value which just happens to be less than sizeof(fstring).
273 o Add ldaplibs to pdbedit link line (bug 651).
274 o Fix crash bug in smbclient completion (bug 659).
275 o Fix packet length for browse list reply (bug 771).
276 o Fix coredump in cli_get_backup_list().
277 o Make sure that we expand %N (bug 612).
278 o Allow rpcclient adddriver command to specify printer driver
280 o Compile tdbdump by default.
281 o Apply patches to fix iconv detection for FreeBSD.
282 o Do not allow the 'guest account' to be added to a passdb backend
283 using smbpasswd or pdbedit (bug 624).
284 o Save LDFLAGS during iconv detection (bug 57).
285 o Run krb5 logins through the username map if the winbindd
286 lookup fails (bug 698).
287 o Add const for lp_set_name_resolve_order() to avoid compiler
289 o Add support for the %i macro in smb.conf to stand in for the for
290 the local IP address to which a client connected.
291 o Allow winbindd to match local accounts to domain SID when
292 'winbind trusted domains only = yes' (bug 680).
293 o Remove code in idmap_ldap that searches the user suffix and group
294 suffix. It's not needed and provides inconsistent functionality
295 from the tdb backend.
296 o Patch to handle munged dial string for Windows 200 TSE.
297 o Correct the "smbldap_open: cannot access when not root error"
298 messages when looking up group information (bug 281).
299 o Skip over the winbind separator when looking up a user.
300 This fixes the bug that prevented local users from
301 matching an AD user when not running winbindd (bug 698).
302 o Fix a problem with configure on *BSD systems. Make sure
303 we add -liconv etc to LDFLAGS.
304 o Fix core dump bug when "security = server" and the authentication
306 o Correct crash bug due to an empty munged dial string.
307 o Show files locked by a specific user (smbstatus -u 'user')
309 o Fix bug preventing print jobs from display in the queue
310 monitor used by Windows NT and later clients (bug 660).
311 o Fix several reported problems with point-n-print from
312 Windows 2000/XP clients due to a bug in the EnumPrinterDataEx()
313 reply (bug 338, 527 & 643).
314 o Fix a handful of potential memory leaks in the LDAP code used
315 by ldapsam[_compat] and the LDAP idmap backend.
316 o Fix for pdbedit error code returns (bug 763).
317 o Make sure we only enumerate group mapping entries (not
318 /etc/group) even when doing local aliases.
319 o Relax check on the pipe name in a dce/rpc bind response to work
320 around issues with establishing trusts to a Windows 2003 domain.
321 o Ensure we mangle names ending in '.' in hash2 mangling method.
322 o Correct parsing issues with munged dial string.
323 o Fix bugs in quota support for XFS.
324 o Add a cleaner method for applications that need to provide name->SID
325 mappings to do this via NSS rather than having to know the
326 winbindd pipe protocol.
327 o Adds a variant of the winbindd_getgroups() call called
328 winbindd_getusersids() that provides direct SID->SIDs listing of a
329 users supplementary groups. This is enough to allow non-Samba
330 applications to do ACL checking.
331 o Make sure we don't append the 'ldap suffix' when writing out the
332 'ldap XXX suffix' values in SWAT (bug 328).
333 o Fix renames across file systems.
334 o Ensure that items in a list of strings containing whitespace are
335 written out surrounded by single quotes. This means that both
336 double and single quotes are now used to surround strings in
338 o Enable SWAT to correctly determine if winbindd is running (bug
340 o Include WWW-Authenticate field in 401 response for bad auth
342 o Add support for NTLM2 (NTLMv2 session security).
343 o Add support for variable-length session keys.
344 o More privilege fixes for group enumeration in LDAP (bug 281).
345 o Use the dns name (or IP) as the originating client name when
346 using CUPS (bug 467).
347 o Fix various SMB signing bugs.
348 o Fix ACL propagation on a DFS root (bug 263).
349 o Disable NTLM2 for RPC pipes.
350 o Allow the client to specify the NTLM2 flags got NTLMSSP
352 o Change the name of the job passed off to cups from "Test Page" to
353 "smbprn.00000033 Test Page" so that we can get the smb jobid back.
354 This allow users to delete jobs with cups printing backend (partial
356 o Fix build of winbindd with static pdb modules.
357 o Retrieve the correct ACL group bits if the file has an ACL
359 o Implement "net rpc group members": Get members of a domain group
360 in human-readable format.
361 o Add MacOSX (Darwin) specific charset module code.
362 o Use samr_dispinfo(level == 1) for enumerating domain users so we
363 can include the full name in gecos field (bug 587).
364 o Add support for winbind's NSS library on FeeeBSD 5.1 (bug 797).
365 o Implement 'net rpc group list [global|local|builtin]*' for a
366 select listing of the respective user databases.
367 o Don't automatically set NT status code flag unless client tells
369 o Add 'net status [sessions|shares] [parseable]'.
370 o Don't mistake pre-existing UNIX jobs for smb jobs (remainder of
372 o Add 'Replicator' and 'RAS Servers' to list of builtin SIDs
374 o Fix inverted logic in hosts allow/deny checks caused by s/strcmp/strequal/
376 o Implement correct version SamrRemoveSidForeignDomain() (bug 252).
377 o Fix typo in 'hash' mangling algorithm.
378 o Support munged dial for ldapsam (bug 800).
379 o Fix process_incoming_data() to return the number of bytes handled this
380 call whether we have a complete PDU or not; fixes bug with multiple
381 PDU request rpc's broken over SMBwriteX calls each.
382 o Fix incorrect smb flags2 for connections to pre-NT servers (causes
383 smbclient to fail to OS2 for example) (bug 821).
384 o Update version string in smbldap-tools Makefile to 0.8.2.
385 o Correct a problem with "net rpc vampire" mis-parsing the
386 alias member info reply.
387 o Ensure the ${libdir} is created by the installclientlib script.
388 o Fix detection of Windows 2003 client architecture in the smb.conf
390 o Ensure that smbd calls the add user script for a missing UNIX
391 user on kerberos auth call (bug 445).
392 o Fix bugs in hosts allow/deny when using a mismatched
393 network/netmask pair.
394 o Protect alloc_sub_basic() from crashing when the source string
395 is NULL (partial work on bug 687).
396 o Fix spinlocks on IRIX.
397 o Corrected some bad destination paths when running "configure
399 o Add packaging files for Fedora Core 1.
400 o Correct bug in SWAT install script for non-english languages.
401 o Support character set ISO-8859-1 internally (bug 558).
402 o Fixed more LDAP access errors when looking up group mappings
404 o Fix UNISTR2 length bug in LsaQueryInfo(3) that caused SID
405 resolution to fail on local files on on domain members
407 o Fix uninitialized variable in passdb.c.
408 o Fix formal parameter type in get_static() in nsswitch/wins.c.
409 o Fix problem mounting directories when mount.cifs is installed
410 with the setuid bit on.
411 o Fix bug that prevent --mandir from overriding the defaults
412 given in the --with-fhs macro.
413 o Fix bug in in-memory Kerberos keytab detection routines
417 ######################################################################
419 =======================================
420 The original 3.0.0 release notes follow
421 =======================================
427 1) Active Directory support. Samba 3.0 is now able to
428 join a ADS realm as a member server and authenticate
429 users using LDAP/Kerberos.
431 2) Unicode support. Samba will now negotiate UNICODE on the wire
432 and internally there is now a much better infrastructure for
433 multi-byte and UNICODE character sets.
435 3) New authentication system. The internal authentication system
436 has been almost completely rewritten. Most of the changes are
437 internal, but the new auth system is also very configurable.
439 4) New default filename mangling system.
441 5) A new "net" command has been added. It is somewhat similar to
442 the "net" command in windows. Eventually we plan to replace
443 numerous other utilities (such as smbpasswd) with subcommands
446 6) Samba now negotiates NT-style status32 codes on the wire. This
447 improves error handling a lot.
449 7) Better Windows 2000/XP/2003 printing support including publishing
450 printer attributes in active directory.
452 8) New loadable module support for passdb backends and character
455 9) New default dual-daemon winbindd support for better performance.
457 10) Support for migrating from a Windows NT 4.0 domain to a Samba
458 domain and maintaining user, group and domain SIDs.
460 11) Support for establishing trust relationships with Windows NT 4.0
463 12) Initial support for a distributed Winbind architecture using
464 an LDAP directory for storing SID to uid/gid mappings.
466 13) Major updates to the Samba documentation tree.
468 14) Full support for client and server SMB signing to ensure
469 compatibility with default Windows 2003 security settings.
471 15) Improvement of ACL mapping features based on code donated by
475 Plus lots of other improvements!
478 Additional Documentation
479 ------------------------
481 Please refer to Samba documentation tree (included in the docs/
482 subdirectory) for extensive explanations of installing, configuring
483 and maintaining Samba 3.0 servers and clients. It is advised to
484 begin with the Samba-HOWTO-Collection for overviews and specific
485 tasks (the current book is up to approximately 400 pages) and to
486 refer to the various man pages for information on individual options.
488 We are very glad to be able to include the second edition of
489 "Using Samba" by Jay Ts, Robert Eckstein, and David Collier-Brown
490 (O'Reilly & Associates) in this release. The book is available
491 on-line at http://samba.org/samba/docs/ and is included with
492 the Samba Web Administration Tool (SWAT). Thanks to the authors and
493 publisher for making "Using Samba" under the GNU Free Documentation
497 ######################################################################
498 Upgrading from a previous Samba 3.0 beta
499 ########################################
501 Beginning with Samba 3.0.0beta3, the RID allocation functions
502 have been moved into winbindd. Previously these were handled
503 by each passdb backend. This means that winbindd must be running
504 to automatically allocate RIDs for users and/or groups. Otherwise,
505 smbd will use the 2.2 algorithm for generating new RIDs.
507 If you are using 'passdb backend = tdbsam' with a previous Samba
508 3.0 beta release (or possibly alpha), it may be necessary to
509 move the RID_COUNTER entry from /usr/local/samba/private/passdb.tdb
510 to winbindd_idmap.tdb. To do this:
512 1) Ensure that winbindd_idmap.tdb exists (launch winbindd at least
514 2) build tdbtool by executing 'make tdbtool' in the source/tdb/
516 3) run: (note that 'tdb>' is the tool's prompt for input)
518 root# ./tdbtool /usr/local/samba/private/passdb.tdb
519 tdb> show RID_COUNTER
523 [000] 0A 52 00 00 .R.
525 tdb> move RID_COUNTER /usr/local/samba/var/locks/winbindd_idmap.tdb
529 If you are using 'passdb backend = ldapsam', it will be necessary to
530 store idmap entries in the LDAP directory as well (i.e. idmap backend
531 = ldap). Refer to the 'net idmap' command for more information on
532 migrating SID<->UNIX id mappings from one backend to another.
534 If the RID_COUNTER record does not exist, then these instructions are
535 unneccessary and the new RID_COUNTER record will be correctly generated
540 ########################
541 Upgrading from Samba 2.2
542 ########################
544 This section is provided to help administrators understand the details
545 involved with upgrading a Samba 2.2 server to Samba 3.0.
551 Many of the options to the GNU autoconf script have been modified
552 in the 3.0 release. The most noticeable are:
554 * removal of --with-tdbsam (is now included by default; see section
555 on passdb backends and authentication for more details)
557 * --with-ldapsam is now on used to provided backward compatible
558 parameters for LDAP enabled Samba 2.2 servers. Refer to the passdb
559 backend and authentication section for more details
561 * inclusion of non-standard passdb modules may be enabled using
562 --with-expsam. This includes an XML backend and a mysql backend.
564 * removal of --with-msdfs (is now enabled by default)
566 * removal of --with-ssl (no longer supported)
568 * --with-utmp now defaults to 'yes' on supported systems
570 * --with-sendfile-support is now enabled by default on supported
577 This section contains a brief listing of changes to smb.conf options
578 in the 3.0.0 release. Please refer to the smb.conf(5) man page for
579 complete descriptions of new or modified parameters.
581 Removed Parameters (order alphabetically):
584 * alternate permissions
587 * code page directory
591 * force unknown acl user
596 * printer driver file
597 * printer driver location
605 New Parameters (new parameters have been grouped by function):
609 * abort shutdown script
612 User and Group Account Management
613 ---------------------------------
616 * add user to group script
617 * algorithmic rid base
618 * delete group script
619 * delete user from group script
621 * set primary group script
627 * passwd chat timeout
638 * paranoid server security
648 * hide unwriteable files
650 * kernel change notify
660 * max reported print jobs
662 UNICODE and Character Sets
663 --------------------------
669 SID to uid/gid Mappings
670 -----------------------
674 * winbind enable local accounts
675 * winbind trusted domains only
676 * template primary group
677 * enable rid algorithm
684 * ldap machine suffix
688 General Configuration
689 ---------------------
693 Modified Parameters (changes in behavior):
695 * encrypt passwords (enabled by default)
696 * mangling method (set to 'hash2' by default)
699 * restrict anonymous (integer value)
700 * security (new 'ads' value)
701 * strict locking (enabled by default)
702 * unix extensions (enabled by default)
703 * winbind cache time (increased to 5 minutes)
704 * winbind uid (deprecated in favor of 'idmap uid')
705 * winbind gid (deprecated in favor of 'idmap gid')
711 This section contains brief descriptions of any new databases
712 introduced in Samba 3.0. Please remember to backup your existing
713 ${lock directory}/*tdb before upgrading to Samba 3.0. Samba will
714 upgrade databases as they are opened (if necessary), but downgrading
715 from 3.0 to 2.2 is an unsupported path.
717 Name Description Backup?
718 ---- ----------- -------
719 account_policy User policy settings yes
720 gencache Generic caching db no
721 group_mapping Mapping table from Windows yes
722 groups/SID to unix groups
723 winbindd_idmap ID map table from SIDS to UNIX yes
725 namecache Name resolution cache entries no
726 netsamlogon_cache Cache of NET_USER_INFO_3 structure no
727 returned as part of a successful
728 net_sam_logon request
729 printing/*.tdb Cached output from 'lpq no
730 command' created on a per print
732 registry Read-only samba registry skeleton no
733 that provides support for exporting
734 various db tables via the winreg RPCs
740 The following issues are known changes in behavior between Samba 2.2 and
741 Samba 3.0 that may affect certain installations of Samba.
743 1) When operating as a member of a Windows domain, Samba 2.2 would
744 map any users authenticated by the remote DC to the 'guest account'
745 if a uid could not be obtained via the getpwnam() call. Samba 3.0
746 rejects the connection as NT_STATUS_LOGON_FAILURE. There is no
747 current work around to re-establish the 2.2 behavior.
749 2) When adding machines to a Samba 2.2 controlled domain, the
750 'add user script' was used to create the UNIX identity of the
751 machine trust account. Samba 3.0 introduces a new 'add machine
752 script' that must be specified for this purpose. Samba 3.0 will
753 not fall back to using the 'add user script' in the absence of
754 an 'add machine script'
757 ######################################################################
758 Passdb Backends and Authentication
759 ##################################
761 There have been a few new changes that Samba administrators should be
762 aware of when moving to Samba 3.0.
764 1) encrypted passwords have been enabled by default in order to
765 inter-operate better with out-of-the-box Windows client
766 installations. This does mean that either (a) a samba account
767 must be created for each user, or (b) 'encrypt passwords = no'
768 must be explicitly defined in smb.conf.
770 2) Inclusion of new 'security = ads' option for integration
771 with an Active Directory domain using the native Windows
772 Kerberos 5 and LDAP protocols.
774 MIT kerberos 1.3.1 supports the ARCFOUR-HMAC-MD5 encryption
775 type which is neccessary for servers on which the
776 administrator password has not been changed, or kerberos-enabled
777 SMB connections to servers that require Kerberos SMB signing.
778 Besides this one difference, either MIT or Heimdal Kerberos
779 distributions are usable by Samba 3.0.
782 Samba 3.0 also includes the possibility of setting up chains
783 of authentication methods (auth methods) and account storage
784 backends (passdb backend). Please refer to the smb.conf(5)
785 man page for details. While both parameters assume sane default
786 values, it is likely that you will need to understand what the
787 values actually mean in order to ensure Samba operates correctly.
789 The recommended passdb backends at this time are
791 * smbpasswd - 2.2 compatible flat file format
792 * tdbsam - attribute rich database intended as an smbpasswd
793 replacement for stand alone servers
794 * ldapsam - attribute rich account storage and retrieval
795 backend utilizing an LDAP directory.
796 * ldapsam_compat - a 2.2 backward compatible LDAP account
799 Certain functions of the smbpasswd(8) tool have been split between the
800 new smbpasswd(8) utility, the net(8) tool, and the new pdbedit(8)
801 utility. See the respective man pages for details.
804 ######################################################################
808 This section outlines the new features affecting Samba / LDAP
814 A new object class (sambaSamAccount) has been introduced to replace
815 the old sambaAccount. This change aids us in the renaming of attributes
816 to prevent clashes with attributes from other vendors. There is a
817 conversion script (examples/LDAP/convertSambaAccount) to modify and LDIF
818 file to the new schema.
822 $ ldapsearch .... -b "ou=people,dc=..." > old.ldif
823 $ convertSambaAccount <DOM SID> old.ldif new.ldif
825 The <DOM SID> can be obtained by running 'net getlocalsid <DOMAINNAME>'
826 on the Samba PDC as root.
828 The old sambaAccount schema may still be used by specifying the
829 "ldapsam_compat" passdb backend. However, the sambaAccount and
830 associated attributes have been moved to the historical section of
831 the schema file and must be uncommented before use if needed.
832 The 2.2 object class declaration for a sambaAccount has not changed
833 in the 3.0 samba.schema file.
835 Other new object classes and their uses include:
837 * sambaDomain - domain information used to allocate rids
838 for users and groups as necessary. The attributes are added
839 in 'ldap suffix' directory entry automatically if
840 an idmap uid/gid range has been set and the 'ldapsam'
841 passdb backend has been selected.
843 * sambaGroupMapping - an object representing the
844 relationship between a posixGroup and a Windows
845 group/SID. These entries are stored in the 'ldap
846 group suffix' and managed by the 'net groupmap' command.
848 * sambaUnixIdPool - created in the 'ldap idmap suffix' entry
849 automatically and contains the next available 'idmap uid' and
852 * sambaIdmapEntry - object storing a mapping between a
853 SID and a UNIX uid/gid. These objects are created by the
854 idmap_ldap module as needed.
856 * sambaSidEntry - object representing a SID alone, as a Structural
857 class on which to build the sambaIdmapEntry.
860 New Suffix for Searching
861 ------------------------
863 The following new smb.conf parameters have been added to aid in directing
864 certain LDAP queries when 'passdb backend = ldapsam://...' has been
867 * ldap suffix - used to search for user and computer accounts
868 * ldap user suffix - used to store user accounts
869 * ldap machine suffix - used to store machine trust accounts
870 * ldap group suffix - location of posixGroup/sambaGroupMapping entries
871 * ldap idmap suffix - location of sambaIdmapEntry objects
873 If an 'ldap suffix' is defined, it will be appended to all of the
874 remaining sub-suffix parameters. In this case, the order of the suffix
875 listings in smb.conf is important. Always place the 'ldap suffix' first
878 Due to a limitation in Samba's smb.conf parsing, you should not surround
879 the DN's with quotation marks.
885 Samba 3.0 supports an ldap backend for the idmap subsystem. The
886 following options would inform Samba that the idmap table should be
887 stored on the directory server onterose in the "ou=idmap,dc=plainjoe,
892 idmap backend = ldap:ldap://onterose/
893 ldap idmap suffix = ou=idmap,dc=plainjoe,dc=org
894 idmap uid = 40000-50000
895 idmap gid = 40000-50000
897 This configuration allows winbind installations on multiple servers to
898 share a uid/gid number space, thus avoiding the interoperability problems
899 with NFS that were present in Samba 2.2.
903 ######################################################################
904 Trust Relationships and a Samba Domain
905 ######################################
907 Samba 3.0.0beta2 is able to utilize winbindd as the means of
908 allocating uids and gids to trusted users and groups. More
909 information regarding Samba's support for establishing trust
910 relationships can be found in the Samba-HOWTO-Collection included
911 in the docs/ directory of this release.
913 First create your Samba PDC and ensure that everything is
914 working correctly before moving on the trusts.
916 To establish Samba as the trusting domain (named SAMBA) from a Windows NT
917 4.0 domain named WINDOWS:
919 1) create the trust account for SAMBA in "User Manager for Domains"
920 2) connect the trust from the Samba domain using
921 'net rpc trustdom establish GLASS'
923 To create a trustlationship with SAMBA as the trusted domain:
925 1) create the initial trust account for GLASS using
926 'smbpasswd -a -i GLASS'. You may need to create a UNIX
927 account for GLASS$ prior to this step (depending on your
928 local configuration).
929 2) connect the trust from a WINDOWS DC using "User Manager
932 Now join winbindd on the Samba PDC to the SAMBA domain using
933 the normal steps for adding a Samba server to an NT4 domain:
934 (note that smbd & nmbd must be running at this point)
936 root# net rpc join -U root
937 Password: <enter root password from smbpasswd file here>
939 Start winbindd and test the join with 'wbinfo -t'.
941 Now test the trust relationship by connecting to the SAMBA DC
942 (e.g. POGO) as a user from the WINDOWS domain:
944 $ smbclient //pogo/netlogon -U Administrator -W WINDOWS
947 Now connect to the WINDOWS DC (e.g. CRYSTAL) as a Samba user:
949 $ smbclient //crystal/netlogon -U root -W WINDOWS
952 ######################################################################
956 Beginning with Samba3.0.0beta3, winbindd has been given new account
957 manage functionality equivalent to the 'add user script' family of
958 smb.conf parameters. The idmap design has also been changed to
959 centralize control of foreign SID lookups and matching to UNIX
963 Brief Description of Changes
964 ----------------------------
966 1) The sid_to_uid() family of functions (smbd/uid.c) have been
967 reverted to the 2.2.x design. This means that when resolving a
968 SID to a UID or similar mapping:
970 a) First consult winbindd
971 b) perform a local lookup only if winbindd fails to
972 return a successful answer
974 There are some variations to this, but these two rules generally
977 2) All idmap lookups have been moved into winbindd. This means that
978 a server must run winbindd (and support NSS) in order to achieve
979 any mappings of SID to dynamically allocated UNIX ids. This was
980 a conscious design choice.
982 3) New functions have been added to winbindd to emulate the 'add user
983 script' family of smbd functions without requiring that external
984 scripts be defined. This functionality is controlled by the 'winbind
985 enable local accounts' smb.conf parameter (enabled by default).
987 However, this account management functionality is only supported
988 in a local tdb (winbindd_idmap.tdb). If these new UNIX accounts
989 must be shared among multiple Samba servers (such as a PDC and BDCs),
990 it will be necessary to define your own 'add user script', et. al.
991 programs that place the accounts/groups in some form of directory
992 such as NIS or LDAP. This requirement was deemed beyond the scope
993 of winbind's account management functions. Solutions for
994 distributing UNIX system information have been deployed and tested
995 for many years. We saw no need to reinvent the wheel.
997 4) A member of a Samba controlled domain running winbindd is now able
998 to map domain users directly onto existing UNIX accounts while still
999 automatically creating accounts for trusted users and groups. This
1000 behavior is controlled by the 'winbind trusted domains only' smb.conf
1001 parameter (disabled by default to provide 2.2.x winbind behavior).
1003 5) Group mapping support is wrapped in the local_XX_to_XX() functions
1004 in smbd/uid.c. The reason that group mappings are not included
1005 in winbindd is because the purpose of Samba's group map is to
1006 match any Windows SID with an existing UNIX group. These UNIX
1007 groups can be created by winbindd (see next section), but the
1008 SID<->gid mapping is retreived by smbd, not winbindd.
1014 * security = server running winbindd to allocate accounts on demand
1016 * Samba PDC running winbindd to handle the automatic creation of UNIX
1017 identities for machine trust accounts
1019 * Automtically creating UNIX user and groups when migrating a Windows NT
1020 4.0 PDC to a Samba PDC. Winbindd must be running when executing
1021 'net rpc vampire' for this to work.
1024 ######################################################################
1028 * There are several bugs currently logged against the 3.0 codebase
1029 that affect the use of NT 4.0 GUI domain management tools when run
1030 against a Samba 3.0 PDC. This bugs should be released in an early
1033 Please refer to https://bugzilla.samba.org/ for a current list of bugs
1034 filed against the Samba 3.0 codebase.
1037 ######################################################################
1038 Reporting bugs & Development Discussion
1039 #######################################
1041 Please discuss this release on the samba-technical mailing list or by
1042 joining the #samba-technical IRC channel on irc.freenode.net.
1044 If you do report problems then please try to send high quality
1045 feedback. If you don't provide vital information to help us track down
1046 the problem then you will probably be ignored.
1048 A new bugzilla installation has been established to help support the
1049 Samba 3.0 community of users. This server, located at
1050 https://bugzilla.samba.org/, has replaced the older jitterbug server
1051 previously located at http://bugs.samba.org/.