1 WHATS NEW IN Samba 3.0.0 RC2
3 ==============================
5 This is the second release candidate snapshot of Samba 3.0.0. A release
6 candidate implies that the code is very close to a final release, remember
7 that this is still a non-production release intended for testing purposes.
10 The purpose of this release candidate is to get wider testing of the major
11 new pieces of code in the current Samba 3.0 development tree.
12 Please refer to the section on "Known Issues" for more details.
18 1) Active Directory support. Samba 3.0 is now able to
19 join a ADS realm as a member server and authenticate
20 users using LDAP/Kerberos.
22 2) Unicode support. Samba will now negotiate UNICODE on the wire and
23 internally there is now a much better infrastructure for multi-byte
24 and UNICODE character sets.
26 3) New authentication system. The internal authentication system has
27 been almost completely rewritten. Most of the changes are internal,
28 but the new auth system is also very configurable.
30 4) New default filename mangling system.
32 5) A new "net" command has been added. It is somewhat similar to
33 the "net" command in windows. Eventually we plan to replace
34 numerous other utilities (such as smbpasswd) with subcommands
37 6) Samba now negotiates NT-style status32 codes on the wire. This
38 improves error handling a lot.
40 7) Better Windows 2000/XP/2003 printing support including publishing
41 printer attributes in active directory.
43 8) New loadable module support for passdb backends and
46 9) New default dual-daemon winbindd support for better performance.
48 10) Support for migrating from a Windows NT 4.0 domain to a Samba
49 domain and maintaining user, group and domain SIDs.
51 11) Support for establishing trust relationships with Windows NT 4.0
54 12) Initial support for a distributed Winbind architecture using
55 an LDAP directory for storing SID to uid/gid mappings.
57 13) Major updates to the Samba documentation tree.
59 14) Full support for client and server SMB signing to ensure
60 compatibility with default Windows 2003 security settings.
62 Plus lots of other improvements!
65 Additional Documentation
66 ------------------------
68 Please refer to Samba documentation tree (included in the docs/
69 subdirectory) for extensive explanations of installing, configuring
70 and maintaining Samba 3.0 servers and clients. It is advised to
71 begin with the Samba-HOWTO-Collection for overviews and specific
72 tasks (the current book is up to approximately 400 pages) and to
73 refer to the various man pages for information on individual options.
75 We are very glad to be able to include the second edition of
76 "Using Samba" by Jay Ts, Robert Eckstein, and David Collier-Brown
77 (O'Reilly & Associates) in this release. The book is available
78 on-line at http://samba.org/samba/docs/ and is included with
79 the Samba Web Administration Tool (SWAT). Thanks to the authors and
80 publisher for making "Using Samba" under the GNU Free Documentation
84 ######################################################################
88 Please refer to the CVS log for the SAMBA_3_0 branch for complete
91 1) Add levels 261 and 262 to search. Found using Samba4 tester.
92 2) Correct bad error return code in session setup reply
93 3) Fix bug where smbd returned DOS error codes from SMBsearch
94 even when NT1 protocol was negotiated.
95 4) Implement SMBexit properly.
96 5) Return group lists from a Samba PDC to a Windows 9x/ME box
97 in implementing user level access control (bug 314).
98 6) Prevent SWAT from crashing when adding shares (bug 254)
99 7) Fix various documentation issues (bugs 304 & 214)
100 8) Fix wins server listing in SWAT (bug 197)
101 9) Fix problem in rpcclient that caused enumerating printer
102 drivers to report failure (bug 294).
103 10) Use kerberos 5 authentication in our client code whenever possible
104 11) Fix schannel bug that caused Active Directory DC's to downgrade our
105 machine account to an NT member.
106 12) Implement missing SAMR_REMOVE_USER_FOREIGN_DOMAIN call (bug 252).
107 13) Implement automatic generation of include/version.h
108 14) Include initial version of smbldap-tool scripts for the Samba
110 15) Implement numerous fixes for multi-byte character strings.
111 16) Enable 'unix extensions' parameter by default.
112 17) Make sure we set the SID type when falling back to the rid
114 18) Correct linking problems with pam_smbpass (bug 327).
115 19) Add SYSV defines for Irix and Solaris to ensure the 'printing'
116 parameter default to the correct value (bug 230)
117 20) Fix recursion bug in alloc_string_sub() (bug 289, et. al.)
118 21) Ensure that 'make install' includes the static and shared
119 versions of the libsmbclient libraries.
120 22) Add CP850 and CP437 internal character set support (bug 150).
121 23) Add support to examples/LDAP/convertSambaAccount for generating
122 LDIF modify files instead of just add (303).
123 24) Fix support for -W option in smbclient (bug 39)
124 25) Remove 'ldap trust ids' parameter since it could not be supported
125 by the current architecture.
126 26) Don't crash when no argument is given to -T in smbclient (bug 345).
127 27) Ensure smbadduser contains the same paths for the smbpasswd file
128 as the other Samba tools (bug 290).
129 28) Port of 'available = no' fix for [homes] from SAMBA_2_2 cvs tree.
130 29) Add sanity checks to DeletePrinterData[Ex]() and ensure that the
131 modified printer is written to disk.
132 30) Force winbindd to periodically update the trusted domain cache.
133 31) Remove outdated import/export script to convert an smbpasswd file
134 to and from and LDAP directory. Use the pdbedit tool instead.
135 32) Ensure that %U substitution is restored on next valid packet
139 Changes since 3.0beta3
140 ######################
142 1) Various memory leak fixes.
143 2) Provide full support for SMB signing (server and client)
144 3) Check for broken getgrouplist() in glibc.
145 4) Don't get stuck in an infinite loop listing directories
146 recursively if the server returns an empty directory name
148 5) Idle LDAP connections after 150 seconds.
149 6) Patched make uninstallmodules (bug 236).
150 7) Fix bug that caused smbd to return incomplete directory listings
151 when UNIX files contained MS wildcard characters.
152 8) Quiet default debug messages in command line tools.
153 9) Fixes to avoid panics on invalid multi-byte strings.
154 10) Fix error messages when creating a new smbpasswd file (bug 198).
155 11) Implemented better detection routines in autoconf scripts for
156 locating ads support on the host OS.
157 12) Fix bug that caused libraries in /usr/local/lib to be ignored
159 13) Ensure winbindd_ads uses the correct realm or domain name when
160 connecting to trusted DC.
161 14) Ensure a correct prototype is created for snprintf() (bug 187)
162 15) Stop files being created on read-only shares in some circumstances.
163 16) Fix wbinfo -p (bug 251)
164 17) Support schannel on any tcp/ip connection if necessary
165 18) Correct bug in user_in_list() so that it works with winbind groups
167 19) Ensure the schannel bind credentials default to the domain
168 of the destination host.
169 20) Default password expiration time in account_pol.tdb to never
170 expire. Remove any existing account_pol.tdb file to reset
171 the new default policy (bug 184).
172 21) Add buttons to SWAT to change the view of smb.conf (bug 212)
173 22) Fix incorrect checks that determine whether or not the 'add user
174 script' has been set.
175 23) More cleanup for internal character set conversions.
176 24) Fixes for multi-byte strings in stat cache code.
177 25) Ensure that the net command honors the 'workgroup' parameter
178 in smb.conf when not overridden from the command line.
179 26) Add gss-spnego support to the ntlm_auth tool.
180 27) Add vfs_default_quota VFS module.
181 28) Added server support for NT quota interfaces.
182 29) Prevent Krb5 replay attacks by adding a replay_cache.
183 30) Fix problems with winbindd and transitive trusts in AD domains.
184 31) Added -S to client tools for setting SMB signing options on the
186 32) Fix bug causing the 'passwd change program' to be called as the
187 connected user and not root.
188 33) Fixed data corruption bug in byte-range locking (e.g. affected MS Excel).
189 34) Support winbindd on FreeBSD is possible.
190 35) Look at only the first OID in the security blob sent in the session
191 setup request to determine the token type.
192 36) Only push locks onto a blocking lock queue if the posix lock failed with
193 EACCES or EAGAIN (this means another lock conflicts). Else return an
194 error and don't queue the request.
195 37) Fix command line argument processing for smbtar.
196 38) Correct issue that caused smbd to return generic unix_user.<uid>
198 39) Default to algorithmic mapping when generating a rid for a group
200 40) Expand %g and %G in logon script, profile path, etc... during
201 a domain logon (bug 208).
202 41) Make sure smbclient obeys '-s <config>'
203 42) Added win2k3 shadow copy operations to VFS interface.
204 43) Allow connections to samba domain member as SERVER\user (don't
205 always default to DOMAIN\user).
206 44) Remove checks in winbindd that caused it to attempt to use
207 non-transitive trust relationships.
208 45) Remove delays in winbindd caused by invalid DNS lookups.
209 46) Fix supplementary group memberships on systems with slightly
210 broken NSS implementations (bug 267).
211 47) Correct issue that prevented smbclient from viewing shares on
212 a win2k server when using a non-anonymous connection (bug 284).
213 48) Add --domain=DOMAIN_NAME to wbinfo for limiting operations like
214 'wbinfo -u' to a single domain. The '.' character represents
216 49) Fix group enumeration bug when using an LDAP directory for
217 storing group mappings.
218 50) Default to use NTLMv2 if available. Fallback to not use LM/NTLM
219 when the extended security capability bit is not set.
220 51) Fix crash in 'wbinfo -a' when using extended characters in the
222 52) Fix multi-byte strupper() panics (bug 205).
223 53) Add vfs_readonly VFS module.
224 54) Make sure to initialize the sambaNextUserRid and sambaNextGroupRid
225 attributes when using 'idmap backend = ldap' (bug 280).
226 55) Make sure that users shared between a Samba PDC and member
227 samba server are seen as domain users and not local users on the
229 56) Fix Query FS Info level 2.
230 57) Allow enumeration of users and groups by win9x "file server" (bug
232 58) Create symlinks during install for modules that support mutliple
234 59) More iconv detection fixes.
235 60) Fix path length error in vfs_recycle module (bug 291).
236 61) Added server support for the LSA_DS UUID on the \lsarpc pipe.
237 (server DsRoleGetPrimaryDomainInfo() is currently disabled).
238 62) Fix SMBseek and get/set position calls.
239 62) Fix SetFileInfo level 1.
240 63) Added tool to convert smbd log file to a pcap file (log2pcaphex).
244 Changes since 3.0beta2
245 ######################
247 1) Added fix for Japanese case names in statcache code;
248 these can change size on upper casing.
249 2) Correct issues with iconv detection in configure script
250 (support needed to find iconv libraries on FreeBSD).
251 3) Fix bug that caused a WINS server to be marked as dead
252 incorrectly (bug #190).
253 4) Removing additional deadlocks conditions that prevented
254 winbindd from running on a Samba PDC (used for trust
256 5) Add support for searching for Active Directory for
257 published printers (net ads printer search).
258 6) Separate UNIX username from DOMAIN\username in pipe
260 7) Auth modules now support returning NT_STATUS_NOT_IMPLEMENTED
261 for cases that they cannot handle.
262 8) Flush winbindd connection cache when the machine trust account
263 password is changed while a connection is open (bug #200).
264 9) Add support for 'OSVersion' server printer data string
265 (corrects problem with uploading printer drivers from
267 10) Numerous memory leak fixes.
268 11) LDAP fixes ("passdb backend = ldapsam" & "idmap backend = ldap"):
269 - Store domain SID in LDAP directory.
270 - store idmap information in existing entries (use sambaSID=...
271 if adding a new entry).
272 12) Fix incorrect usage of primary group SID when looking up user
274 13) Remove idmap_XX_to_XX calls from smbd. Move back to the the
275 winbind_XXX and local_XXX calls used in 2.2.
276 14) All uid/gid allocation must involve winbindd now (we do not
277 attempt to map unknown SIDs to a UNIX identify).
278 15) Add 'winbind trusted domains only' parameter to force a domain
279 member. The server to use matching users names from /etc/passwd
280 for its domain (needed for domain member of a Samba domain).
281 16) Rename 'idmap only' to 'enable rid algorithm' for better clarity
283 17) Add support for multi-byte statcache code (bug #185)
284 18) Fix open mode race condition.
285 19) Implement winbindd local account management functions. Refer to
286 the "Winbind Changes" section for details.
287 20) Move RID allocation functions into idmap backend.
288 21) Fix parsing error that prevented publishing printers from a
289 Samba server in an AD domain.
290 22) Revive NTLMSSP support for named pipes.
291 23) More SCHANNEL fixes.
292 24) Correct SMB signing with NTLMSSP.
293 25) Fix coherency bug in print handle/printer object caching code
294 that could cause XP clients to infinitely loop while updating
295 their local printer cache.
296 26) Make winbindd use its dual-daemon mode by default (use -Y to
297 start as a single process).
298 27) Add support to nmbd and winbindd for 'smbcontrol <pid>
300 28) Correct problem with smbtar when dealing with files > 8Gb
305 Changes since 3.0beta1
306 ######################
308 1) Rework our smb signing code again, this factors out some of
309 the common MAC calculation code, and now supports multiple
310 outstanding packets (bug #40).
311 2) Enforce 'client plaintext auth', 'client lanman auth' and 'client
313 3) Correct timestamp problem on 64-bit machines (bug #140).
314 4) Add extra debugging statements to winbindd for tracking down
316 5) Fix bug when aliased 'winbind uid/gid' parameters are used.
317 ('winbind uid/gid' are now replaced with 'idmap uid/gid').
318 6) Added an auth flag that indicates if we should be allowed
319 to fall back to NTLMSSP for SASL if krb5 fails.
320 7) Fixed the bug that forced us not to use the winbindd cache when
321 we have a primary ADS domain and a secondary (trusted) NT4
323 8) Use lp_realm() to find the default realm for 'net ads password'.
324 9) Removed editreg from standard build until it is portable..
325 10) Fix domain membership for servers not running winbindd.
326 11) Correct race condition in determining the high water mark
327 in the idmap backend (bug #181).
328 12) Set the user's primary unix group from usrmgr.exe (partial
330 13) Show comments when doing 'net group -l' (bug #3).
331 14) Add trivial extension to 'net' to dump current local idmap
332 and restore mappings as well.
333 15) Modify 'net rpc vampire' to add new and existing users to
334 both the idmap and the SAM. This code needs further testing.
335 16) Fix crash bug in ADS searches.
336 17) Build libnss_wins.so as part of nsswitch target (bug #160).
337 18) Make net rpc vampire return an error if the sam sync RPC
339 19) Fail to join an NT 4 domain as a BDC if a workstation account
340 using our name exists.
341 20) Fix various memory leaks in server and client code
342 21) Remove the short option to --set-auth-user for wbinfo (-A) to
343 prevent confusion with the -a option (bug #158).
344 22) Added new 'map acl inherit' parameter.
345 23) Removed unused 'privileges' code from group mapping database.
346 24) Don't segfault on empty passdb backend list (bug #136).
347 25) Fixed acl sorting algorithm for Windows 2000 clients.
348 26) Replace universal group cache with netsamlogon_cache
349 from APPLIANCE_HEAD branch.
350 27) Fix autoconf detection issues surrounding --with-ads=yes
351 but no Krb5 header files installed (bug #152).
352 28) Add LDAP lookup for domain sequence number in case we are
353 joined using NT4 protocols to a native mode AD domain.
354 29) Fix backend method selection for trusted NT 4 (or 2k
356 30) Fixed bug that caused us to enumerate domain local groups
357 from native mode AD domains other than our own.
358 31) Correct group enumeration for viewing in the Windows
359 security tab (bug #110).
360 32) Consolidate the DC location code.
361 33) Moved 'ads server' functionality into 'password server' for
362 backwards compatibility.
363 34) Fix winbindd_idmap tdb upgrades from a 2.2 installation.
364 ( if you installed beta1, be sure to
365 'mv idmap.tdb winbindd_idmap.tdb' ).
366 35) Fix pdb_ldap segfaults, and wrong default values for
368 36) Enable negative connection cache for winbindd's ADS backend
370 37) Enable address caching for active directory DC's so we don't
371 have to hit DNS so much.
372 38) Fix bug in idmap code that caused mapping to randomly be
374 39) Add tdb locking code to prevent race condition when adding a
375 new mapping to idmap.
376 40) Fix 'map to guest = bad user' when acting as a PDC supporting
378 41) Prevent deadlock issues when running winbindd on a Samba PDC
379 to handle allocating uids & gids for trusted users and groups
380 42) added LOCALE patch from Steve Langasek (bug #122).
381 43) Add the 'guest' passdb backend automatically to the end of
382 the 'passdb backend' list if 'guest account' has a valid
384 44) Remove samstrict_dc auth method. Rework 'samstrict' to only
385 handle our local names (or domain name if we are a PDC).
386 Move existing permissive 'sam' method to 'sam_ignoredomain'
387 and make 'samstrict' the new default 'sam' auth method.
388 45) Match Windows NT4/2k behavior when authenticating a user with
389 and unknown domain (default to our domain if we are a DC or
390 domain member; default to our local name if we are a
392 46) Fix Get_Pwnam() to always fall back to lookup 'user' if the
393 'DOMAIN\user' lookup fails. This matches 2.2. behavior.
394 47) Fix the trustdom_cache code to update the list of trusted
395 domains when operating as a domain member and not using
397 48) Remove 'nisplussam' passdb backend since it has suffered for
398 too long without a maintainer.
403 ######################################################################
404 Upgrading from a previous Samba 3.0 beta
405 ########################################
407 Beginning with Samba 3.0.0beta3, the RID allocation functions
408 have been moved into winbindd. Previously these were handled
409 by each passdb backend. This means that winbindd must be running
410 to automatically allocate RIDs for users and/or groups. Otherwise,
411 smbd will use the 2.2 algorithm for generating new RIDs.
413 If you are using 'passdb backend = tdbsam' with a previous Samba
414 3.0 beta release (or possibly alpha), it may be necessary to
415 move the RID_COUNTER entry from /usr/local/samba/private/passdb.tdb
416 to winbindd_idmap.tdb. To do this:
418 1) Ensure that winbindd_idmap.tdb exists (launch winbindd at least
420 2) build tdbtool by executing 'make tdbtool' in the source/tdb/
422 3) run: (note that 'tdb>' is the tool's prompt for input)
424 root# ./tdbtool /usr/local/samba/private/passdb.tdb
425 tdb> show RID_COUNTER
429 [000] 0A 52 00 00 .R.
431 tdb> move RID_COUNTER /usr/local/samba/var/locks/winbindd_idmap.tdb
435 If you are using 'passdb backend = ldapsam', it will be necessary to
436 store idmap entries in the LDAP directory as well (i.e. idmap backend
437 = ldap). Refer to the 'net idmap' command for more information on
438 migrating SID<->UNIX id mappings from one backend to another.
440 If the RID_COUNTER record does not exist, then these instructions are
441 unneccessary and the new RID_COUNTER record will be correctly generated
446 ########################
447 Upgrading from Samba 2.2
448 ########################
450 This section is provided to help administrators understand the details
451 involved with upgrading a Samba 2.2 server to Samba 3.0.
457 Many of the options to the GNU autoconf script have been modified
458 in the 3.0 release. The most noticeable are:
460 * removal of --with-tdbsam (is now included by default; see section
461 on passdb backends and authentication for more details)
463 * --with-ldapsam is now on used to provided backward compatible
464 parameters for LDAP enabled Samba 2.2 servers. Refer to the passdb
465 backend and authentication section for more details
467 * inclusion of non-standard passdb modules may be enabled using
468 --with-expsam. This includes an XML backend and a mysql backend.
470 * removal of --with-msdfs (is now enabled by default)
472 * removal of --with-ssl (no longer supported)
474 * --with-utmp now defaults to 'yes' on supported systems
476 * --with-sendfile-support is now enabled by default on supported
483 This section contains a brief listing of changes to smb.conf options
484 in the 3.0.0 release. Please refer to the smb.conf(5) man page for
485 complete descriptions of new or modified parameters.
487 Removed Parameters (order alphabetically):
490 * alternate permissions
493 * code page directory
497 * force unknown acl user
501 * printer driver file
502 * printer driver location
509 New Parameters (new parameters have been grouped by function):
513 * abort shutdown script
516 User and Group Account Management
517 ---------------------------------
520 * add user to group script
521 * algorithmic rid base
522 * delete group script
523 * delete user from group script
525 * set primary group script
541 * paranoid server security
551 * hide unwriteable files
553 * kernel change notify
563 * max reported print jobs
565 UNICODE and Character Sets
566 --------------------------
572 SID to uid/gid Mappings
573 -----------------------
577 * winbind enable local accounts
578 * winbind trusted domains only
579 * template primary group
580 * enable rid algorithm
587 * ldap machine suffix
591 General Configuration
592 ---------------------
596 Modified Parameters (changes in behavior):
598 * encrypt passwords (enabled by default)
599 * mangling method (set to 'hash2' by default)
602 * restrict anonymous (integer value)
603 * security (new 'ads' value)
604 * strict locking (enabled by default)
605 * unix extensions (enabled by default)
606 * winbind cache time (increased to 5 minutes)
607 * winbind uid (deprecated in favor of 'idmap uid')
608 * winbind gid (deprecated in favor of 'idmap gid')
614 This section contains brief descriptions of any new databases
615 introduced in Samba 3.0. Please remember to backup your existing
616 ${lock directory}/*tdb before upgrading to Samba 3.0. Samba will
617 upgrade databases as they are opened (if necessary), but downgrading
618 from 3.0 to 2.2 is an unsupported path.
620 Name Description Backup?
621 ---- ----------- -------
622 account_policy User policy settings yes
623 gencache Generic caching db no
624 group_mapping Mapping table from Windows yes
625 groups/SID to unix groups
626 winbindd_idmap ID map table from SIDS to UNIX yes
628 namecache Name resolution cache entries no
629 netsamlogon_cache Cache of NET_USER_INFO_3 structure no
630 returned as part of a successful
631 net_sam_logon request
632 printing/*.tdb Cached output from 'lpq no
633 command' created on a per print
635 registry Read-only samba registry skeleton no
636 that provides support for exporting
637 various db tables via the winreg RPCs
643 The following issues are known changes in behavior between Samba 2.2 and
644 Samba 3.0 that may affect certain installations of Samba.
646 1) When operating as a member of a Windows domain, Samba 2.2 would
647 map any users authenticated by the remote DC to the 'guest account'
648 if a uid could not be obtained via the getpwnam() call. Samba 3.0
649 rejects the connection as NT_STATUS_LOGON_FAILURE. There is no
650 current work around to re-establish the 2.2 behavior.
652 2) When adding machines to a Samba 2.2 controlled domain, the
653 'add user script' was used to create the UNIX identity of the
654 machine trust account. Samba 3.0 introduces a new 'add machine
655 script' that must be specified for this purpose. Samba 3.0 will
656 not fall back to using the 'add user script' in the absence of
657 an 'add machine script'
660 ######################################################################
661 Passdb Backends and Authentication
662 ##################################
664 There have been a few new changes that Samba administrators should be
665 aware of when moving to Samba 3.0.
667 1) encrypted passwords have been enabled by default in order to
668 inter-operate better with out-of-the-box Windows client
669 installations. This does mean that either (a) a samba account
670 must be created for each user, or (b) 'encrypt passwords = no'
671 must be explicitly defined in smb.conf.
673 2) Inclusion of new 'security = ads' option for integration
674 with an Active Directory domain using the native Windows
675 Kerberos 5 and LDAP protocols.
677 MIT kerberos 1.3.1 supports the ARCFOUR-HMAC-MD5 encryption
678 type which is neccessary for servers on which the
679 administrator password has not been changed, or kerberos-enabled
680 SMB connections to servers that require Kerberos SMB signing.
681 Besides this one difference, either MIT or Heimdal Kerberos
682 distributions are usable by Samba 3.0.
685 Samba 3.0 also includes the possibility of setting up chains
686 of authentication methods (auth methods) and account storage
687 backends (passdb backend). Please refer to the smb.conf(5)
688 man page for details. While both parameters assume sane default
689 values, it is likely that you will need to understand what the
690 values actually mean in order to ensure Samba operates correctly.
692 The recommended passdb backends at this time are
694 * smbpasswd - 2.2 compatible flat file format
695 * tdbsam - attribute rich database intended as an smbpasswd
696 replacement for stand alone servers
697 * ldapsam - attribute rich account storage and retrieval
698 backend utilizing an LDAP directory.
699 * ldapsam_compat - a 2.2 backward compatible LDAP account
702 Certain functions of the smbpasswd(8) tool have been split between the
703 new smbpasswd(8) utility, the net(8) tool, and the new pdbedit(8)
704 utility. See the respective man pages for details.
707 ######################################################################
711 This section outlines the new features affecting Samba / LDAP
717 A new object class (sambaSamAccount) has been introduced to replace
718 the old sambaAccount. This change aids us in the renaming of attributes
719 to prevent clashes with attributes from other vendors. There is a
720 conversion script (examples/LDAP/convertSambaAccount) to modify and LDIF
721 file to the new schema.
725 $ ldapsearch .... -b "ou=people,dc=..." > old.ldif
726 $ convertSambaAccount <DOM SID> old.ldif new.ldif
728 The <DOM SID> can be obtained by running 'net getlocalsid <DOMAINNAME>'
729 on the Samba PDC as root.
731 The old sambaAccount schema may still be used by specifying the
732 "ldapsam_compat" passdb backend. However, the sambaAccount and
733 associated attributes have been moved to the historical section of
734 the schema file and must be uncommented before use if needed.
735 The 2.2 object class declaration for a sambaAccount has not changed
736 in the 3.0 samba.schema file.
738 Other new object classes and their uses include:
740 * sambaDomain - domain information used to allocate rids
741 for users and groups as necessary. The attributes are added
742 in 'ldap suffix' directory entry automatically if
743 an idmap uid/gid range has been set and the 'ldapsam'
744 passdb backend has been selected.
746 * sambaGroupMapping - an object representing the
747 relationship between a posixGroup and a Windows
748 group/SID. These entries are stored in the 'ldap
749 group suffix' and managed by the 'net groupmap' command.
751 * sambaUnixIdPool - created in the 'ldap idmap suffix' entry
752 automatically and contains the next available 'idmap uid' and
755 * sambaIdmapEntry - object storing a mapping between a
756 SID and a UNIX uid/gid. These objects are created by the
757 idmap_ldap module as needed.
759 * sambaSidEntry - object representing a SID alone, as a Structural
760 class on which to build the sambaIdmapEntry.
763 New Suffix for Searching
764 ------------------------
766 The following new smb.conf parameters have been added to aid in directing
767 certain LDAP queries when 'passdb backend = ldapsam://...' has been
770 * ldap suffix - used to search for user and computer accounts
771 * ldap user suffix - used to store user accounts
772 * ldap machine suffix - used to store machine trust accounts
773 * ldap group suffix - location of posixGroup/sambaGroupMapping entries
774 * ldap idmap suffix - location of sambaIdmapEntry objects
776 If an 'ldap suffix' is defined, it will be appended to all of the
777 remaining sub-suffix parameters. In this case, the order of the suffix
778 listings in smb.conf is important. Always place the 'ldap suffix' first
781 Due to a limitation in Samba's smb.conf parsing, you should not surround
782 the DN's with quotation marks.
788 Samba 3.0 supports an ldap backend for the idmap subsystem. The
789 following options would inform Samba that the idmap table should be
790 stored on the directory server onterose in the "ou=idmap,dc=plainjoe,
795 idmap backend = ldap:ldap://onterose/
796 ldap idmap suffix = ou=idmap,dc=plainjoe,dc=org
797 idmap uid = 40000-50000
798 idmap gid = 40000-50000
800 This configuration allows winbind installations on multiple servers to
801 share a uid/gid number space, thus avoiding the interoperability problems
802 with NFS that were present in Samba 2.2.
806 ######################################################################
807 Trust Relationships and a Samba Domain
808 ######################################
810 Samba 3.0.0beta2 is able to utilize winbindd as the means of
811 allocating uids and gids to trusted users and groups. More
812 information regarding Samba's support for establishing trust
813 relationships can be found in the Samba-HOWTO-Collection included
814 in the docs/ directory of this release.
816 First create your Samba PDC and ensure that everything is
817 working correctly before moving on the trusts.
819 To establish Samba as the trusting domain (named SAMBA) from a Windows NT
820 4.0 domain named WINDOWS:
822 1) create the trust account for SAMBA in "User Manager for Domains"
823 2) connect the trust from the Samba domain using
824 'net rpc trustdom establish GLASS'
826 To create a trustlationship with SAMBA as the trusted domain:
828 1) create the initial trust account for GLASS using
829 'smbpasswd -a -i GLASS'. You may need to create a UNIX
830 account for GLASS$ prior to this step (depending on your
831 local configuration).
832 2) connect the trust from a WINDOWS DC using "User Manager
835 Now join winbindd on the Samba PDC to the SAMBA domain using
836 the normal steps for adding a Samba server to an NT4 domain:
837 (note that smbd & nmbd must be running at this point)
839 root# net rpc join -U root
840 Password: <enter root password from smbpasswd file here>
842 Start winbindd and test the join with 'wbinfo -t'.
844 Now test the trust relationship by connecting to the SAMBA DC
845 (e.g. POGO) as a user from the WINDOWS domain:
847 $ smbclient //pogo/netlogon -U Administrator -W WINDOWS
850 Now connect to the WINDOWS DC (e.g. CRYSTAL) as a Samba user:
852 $ smbclient //crystal/netlogon -U root -W WINDOWS
855 ######################################################################
859 Beginning with Samba3.0.0beta3, winbindd has been given new account
860 manage functionality equivalent to the 'add user script' family of
861 smb.conf parameters. The idmap design has also been changed to
862 centralize control of foreign SID lookups and matching to UNIX
866 Brief Description of Changes
867 ----------------------------
869 1) The sid_to_uid() family of functions (smbd/uid.c) have been
870 reverted to the 2.2.x design. This means that when resolving a
871 SID to a UID or similar mapping:
873 a) First consult winbindd
874 b) perform a local lookup only if winbindd fails to
875 return a successful answer
877 There are some variations to this, but these two rules generally
880 2) All idmap lookups have been moved into winbindd. This means that
881 a server must run winbindd (and support NSS) in order to achieve
882 any mappings of SID to dynamically allocated UNIX ids. This was
883 a conscious design choice.
885 3) New functions have been added to winbindd to emulate the 'add user
886 script' family of smbd functions without requiring that external
887 scripts be defined. This functionality is controlled by the 'winbind
888 enable local accounts' smb.conf parameter (enabled by default).
890 However, this account management functionality is only supported
891 in a local tdb (winbindd_idmap.tdb). If these new UNIX accounts
892 must be shared among multiple Samba servers (such as a PDC and BDCs),
893 it will be necessary to define your own 'add user script', et. al.
894 programs that place the accounts/groups in some form of directory
895 such as NIS or LDAP. This requirement was deemed beyond the scope
896 of winbind's account management functions. Solutions for
897 distributing UNIX system information have been deployed and tested
898 for many years. We saw no need to reinvent the wheel.
900 4) A member of a Samba controlled domain running winbindd is now able
901 to map domain users directly onto existing UNIX accounts while still
902 automatically creating accounts for trusted users and groups. This
903 behavior is controlled by the 'winbind trusted domains only' smb.conf
904 parameter (disabled by default to provide 2.2.x winbind behavior).
906 5) Group mapping support is wrapped in the local_XX_to_XX() functions
907 in smbd/uid.c. The reason that group mappings are not included
908 in winbindd is because the purpose of Samba's group map is to
909 match any Windows SID with an existing UNIX group. These UNIX
910 groups can be created by winbindd (see next section), but the
911 SID<->gid mapping is retreived by smbd, not winbindd.
917 * security = server running winbindd to allocate accounts on demand
919 * Samba PDC running winbindd to handle the automatic creation of UNIX
920 identities for machine trust accounts
922 * Automtically creating UNIX user and groups when migrating a Windows NT
923 4.0 PDC to a Samba PDC. Winbindd must be running when executing
924 'net rpc vampire' for this to work.
927 ######################################################################
931 * The smbldap perl scripts for managing user entries in an LDAP
932 directory have not be updated to function with the Samba 3.0
933 schema changes. This (or an equivalent solution) work is planned
934 to be completed prior to the stable 3.0.0 release.
936 Please refer to https://bugzilla.samba.org/ for a current list of bugs
937 filed against the Samba 3.0 codebase.
940 ######################################################################
941 Reporting bugs & Development Discussion
942 #######################################
944 Please discuss this release on the samba-technical mailing list or by
945 joining the #samba-technical IRC channel on irc.freenode.net.
947 If you do report problems then please try to send high quality
948 feedback. If you don't provide vital information to help us track down
949 the problem then you will probably be ignored.
951 A new bugzilla installation has been established to help support the
952 Samba 3.0 community of users. This server, located at
953 https://bugzilla.samba.org/, will replace the existing jitterbug server
954 and the old http://bugs.samba.org now points to the new bugzilla server.