1 WHATS NEW IN Samba 3.0.0
3 ==============================
5 This is the third 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) Remove Perl module dependencies in generated RedHat 8/9 RPMS.
92 2) Update mount helper to take synonyms for file_mode and
93 dir_mode (fmask and dmask).
94 3) Fix portability bug with log2pcaphex.
95 4) Use different algorithm to generate codepages source code which
96 allows to take gaps into account thus making unnecessary
97 extended [index] = value, syntax in to_ucs2 array (bug 380).
98 5) Fix comment strings to 43 bytes as per spec.
99 6) Fix pam_winbind compile bug on FreeBSD (bug 261).
100 7) Support for in-memory keytabs, which are needed to make heimdal
101 work properly. MIT does not support them, so this check will be
102 used to decide whether to use them. (partial fix for bug 372).
103 8) Disable RC4-HMAC on broken heimdal setups. (remainder of bug
105 9) Correct bug in smbclient that resulted in errors when untarring
106 long filenames (bug 308).
107 10) Improve autoconf checks for PAM header files and libs.
108 11) Added fast path to convert_string() when dealing with
109 ASCII->ASCII, UCS2-LE->ASCII, and ASCII->UCS2-LE with
111 12) Quiet debug messages when we don't find a module and it is not
112 a critical error (bug 375).
113 13) Fix UNIX passwd sync properly.
114 14) Fix more transitive trust issues in winbindd (bug 305).
115 15) Ensure that winbindd functions with 'disable netbios = yes'
116 16) Store the real short domain name in secrets.tdb as soon as we
117 know it. Also display an error message when joining an AD
118 domain and the 'workgroup' parameter has not been specified.
119 17) Return 0 DFS links instead of -1 when dfs support is not enabled.
120 18) Update LDAP schema for Netscape DS 4.x and Novell eDirectory 8.7
121 19) Ensure that name types can be specified using name#type notation
122 in the 'net' command (bug 73).
123 20) Add retry looks to ADS sequence number and domain SID lookups
125 21) use a variant of alloc_sub_basic() for string lists such as
126 'valid users', 'write list', and 'read list' (bug 397).
127 22) Fix seg fault when winbindd receives an error from the AD server
128 in response to an LDAP search (bug 282).
129 23) Update findsmb to use the new syntax for smbclient and nmblookup.
130 24) Fix bug that prevented variables from being used in explicitly
131 defined path in [homes].
132 25) Only set SIDs when they're returned by the MySQL query
134 26) Include support for NTLMv2 key exchange.
135 27) Revert default for 'client ntlmv2 auth' to off (bug 359).
136 28) Fix crash in winbindd when the trust account password gets
137 changed underneath us via 'net rpc changetrustpw' (bug 382).
138 29) Use djb-algorithm string hash - faster than the tdb one we
139 used to use. Does not change on disk format or hashing location.
140 30) Implements some kind of improved AFS support for Samba on
141 Linux with OpenAFS 1.2.10. './configure --with-fake-kaserver'
142 assumes that you have OpenAFS on your machine.
143 31) When enumerating dfs shares loop from 0 to lp_numservices() instead
144 of relying on lp_servicename(n) to return an empty string for
145 invalid service numbers (bug 403).
146 32) Fix crash bug in 'net rpc samdump' (bug 334).
147 33) Fix crash bug in WINS NSS module (bug 299).
148 34) Fix a few minor compile errors on HP-UX.
155 1) Add levels 261 and 262 to search. Found using Samba4 tester.
156 2) Correct bad error return code in session setup reply
157 3) Fix bug where smbd returned DOS error codes from SMBsearch
158 even when NT1 protocol was negotiated.
159 4) Implement SMBexit properly.
160 5) Return group lists from a Samba PDC to a Windows 9x/ME box
161 in implementing user level access control (bug 314).
162 6) Prevent SWAT from crashing when adding shares (bug 254)
163 7) Fix various documentation issues (bugs 304 & 214)
164 8) Fix wins server listing in SWAT (bug 197)
165 9) Fix problem in rpcclient that caused enumerating printer
166 drivers to report failure (bug 294).
167 10) Use kerberos 5 authentication in our client code whenever possible
168 11) Fix schannel bug that caused Active Directory DC's to downgrade our
169 machine account to an NT member.
170 12) Implement missing SAMR_REMOVE_USER_FOREIGN_DOMAIN call (bug 252).
171 13) Implement automatic generation of include/version.h
172 14) Include initial version of smbldap-tool scripts for the Samba
174 15) Implement numerous fixes for multi-byte character strings.
175 16) Enable 'unix extensions' parameter by default.
176 17) Make sure we set the SID type when falling back to the rid
178 18) Correct linking problems with pam_smbpass (bug 327).
179 19) Add SYSV defines for Irix and Solaris to ensure the 'printing'
180 parameter default to the correct value (bug 230)
181 20) Fix recursion bug in alloc_string_sub() (bug 289, et. al.)
182 21) Ensure that 'make install' includes the static and shared
183 versions of the libsmbclient libraries.
184 22) Add CP850 and CP437 internal character set support (bug 150).
185 23) Add support to examples/LDAP/convertSambaAccount for generating
186 LDIF modify files instead of just add (303).
187 24) Fix support for -W option in smbclient (bug 39)
188 25) Remove 'ldap trust ids' parameter since it could not be supported
189 by the current architecture.
190 26) Don't crash when no argument is given to -T in smbclient (bug 345).
191 27) Ensure smbadduser contains the same paths for the smbpasswd file
192 as the other Samba tools (bug 290).
193 28) Port of 'available = no' fix for [homes] from SAMBA_2_2 cvs tree.
194 29) Add sanity checks to DeletePrinterData[Ex]() and ensure that the
195 modified printer is written to disk.
196 30) Force winbindd to periodically update the trusted domain cache.
197 31) Remove outdated import/export script to convert an smbpasswd file
198 to and from and LDAP directory. Use the pdbedit tool instead.
199 32) Ensure that %U substitution is restored on next valid packet
203 Changes since 3.0beta3
204 ######################
206 1) Various memory leak fixes.
207 2) Provide full support for SMB signing (server and client)
208 3) Check for broken getgrouplist() in glibc.
209 4) Don't get stuck in an infinite loop listing directories
210 recursively if the server returns an empty directory name
212 5) Idle LDAP connections after 150 seconds.
213 6) Patched make uninstallmodules (bug 236).
214 7) Fix bug that caused smbd to return incomplete directory listings
215 when UNIX files contained MS wildcard characters.
216 8) Quiet default debug messages in command line tools.
217 9) Fixes to avoid panics on invalid multi-byte strings.
218 10) Fix error messages when creating a new smbpasswd file (bug 198).
219 11) Implemented better detection routines in autoconf scripts for
220 locating ads support on the host OS.
221 12) Fix bug that caused libraries in /usr/local/lib to be ignored
223 13) Ensure winbindd_ads uses the correct realm or domain name when
224 connecting to trusted DC.
225 14) Ensure a correct prototype is created for snprintf() (bug 187)
226 15) Stop files being created on read-only shares in some circumstances.
227 16) Fix wbinfo -p (bug 251)
228 17) Support schannel on any tcp/ip connection if necessary
229 18) Correct bug in user_in_list() so that it works with winbind groups
231 19) Ensure the schannel bind credentials default to the domain
232 of the destination host.
233 20) Default password expiration time in account_pol.tdb to never
234 expire. Remove any existing account_pol.tdb file to reset
235 the new default policy (bug 184).
236 21) Add buttons to SWAT to change the view of smb.conf (bug 212)
237 22) Fix incorrect checks that determine whether or not the 'add user
238 script' has been set.
239 23) More cleanup for internal character set conversions.
240 24) Fixes for multi-byte strings in stat cache code.
241 25) Ensure that the net command honors the 'workgroup' parameter
242 in smb.conf when not overridden from the command line.
243 26) Add gss-spnego support to the ntlm_auth tool.
244 27) Add vfs_default_quota VFS module.
245 28) Added server support for NT quota interfaces.
246 29) Prevent Krb5 replay attacks by adding a replay_cache.
247 30) Fix problems with winbindd and transitive trusts in AD domains.
248 31) Added -S to client tools for setting SMB signing options on the
250 32) Fix bug causing the 'passwd change program' to be called as the
251 connected user and not root.
252 33) Fixed data corruption bug in byte-range locking (e.g. affected MS Excel).
253 34) Support winbindd on FreeBSD is possible.
254 35) Look at only the first OID in the security blob sent in the session
255 setup request to determine the token type.
256 36) Only push locks onto a blocking lock queue if the posix lock failed with
257 EACCES or EAGAIN (this means another lock conflicts). Else return an
258 error and don't queue the request.
259 37) Fix command line argument processing for smbtar.
260 38) Correct issue that caused smbd to return generic unix_user.<uid>
262 39) Default to algorithmic mapping when generating a rid for a group
264 40) Expand %g and %G in logon script, profile path, etc... during
265 a domain logon (bug 208).
266 41) Make sure smbclient obeys '-s <config>'
267 42) Added win2k3 shadow copy operations to VFS interface.
268 43) Allow connections to samba domain member as SERVER\user (don't
269 always default to DOMAIN\user).
270 44) Remove checks in winbindd that caused it to attempt to use
271 non-transitive trust relationships.
272 45) Remove delays in winbindd caused by invalid DNS lookups.
273 46) Fix supplementary group memberships on systems with slightly
274 broken NSS implementations (bug 267).
275 47) Correct issue that prevented smbclient from viewing shares on
276 a win2k server when using a non-anonymous connection (bug 284).
277 48) Add --domain=DOMAIN_NAME to wbinfo for limiting operations like
278 'wbinfo -u' to a single domain. The '.' character represents
280 49) Fix group enumeration bug when using an LDAP directory for
281 storing group mappings.
282 50) Default to use NTLMv2 if available. Fallback to not use LM/NTLM
283 when the extended security capability bit is not set.
284 51) Fix crash in 'wbinfo -a' when using extended characters in the
286 52) Fix multi-byte strupper() panics (bug 205).
287 53) Add vfs_readonly VFS module.
288 54) Make sure to initialize the sambaNextUserRid and sambaNextGroupRid
289 attributes when using 'idmap backend = ldap' (bug 280).
290 55) Make sure that users shared between a Samba PDC and member
291 samba server are seen as domain users and not local users on the
293 56) Fix Query FS Info level 2.
294 57) Allow enumeration of users and groups by win9x "file server" (bug
296 58) Create symlinks during install for modules that support mutliple
298 59) More iconv detection fixes.
299 60) Fix path length error in vfs_recycle module (bug 291).
300 61) Added server support for the LSA_DS UUID on the \lsarpc pipe.
301 (server DsRoleGetPrimaryDomainInfo() is currently disabled).
302 62) Fix SMBseek and get/set position calls.
303 62) Fix SetFileInfo level 1.
304 63) Added tool to convert smbd log file to a pcap file (log2pcaphex).
308 Changes since 3.0beta2
309 ######################
311 1) Added fix for Japanese case names in statcache code;
312 these can change size on upper casing.
313 2) Correct issues with iconv detection in configure script
314 (support needed to find iconv libraries on FreeBSD).
315 3) Fix bug that caused a WINS server to be marked as dead
316 incorrectly (bug #190).
317 4) Removing additional deadlocks conditions that prevented
318 winbindd from running on a Samba PDC (used for trust
320 5) Add support for searching for Active Directory for
321 published printers (net ads printer search).
322 6) Separate UNIX username from DOMAIN\username in pipe
324 7) Auth modules now support returning NT_STATUS_NOT_IMPLEMENTED
325 for cases that they cannot handle.
326 8) Flush winbindd connection cache when the machine trust account
327 password is changed while a connection is open (bug #200).
328 9) Add support for 'OSVersion' server printer data string
329 (corrects problem with uploading printer drivers from
331 10) Numerous memory leak fixes.
332 11) LDAP fixes ("passdb backend = ldapsam" & "idmap backend = ldap"):
333 - Store domain SID in LDAP directory.
334 - store idmap information in existing entries (use sambaSID=...
335 if adding a new entry).
336 12) Fix incorrect usage of primary group SID when looking up user
338 13) Remove idmap_XX_to_XX calls from smbd. Move back to the the
339 winbind_XXX and local_XXX calls used in 2.2.
340 14) All uid/gid allocation must involve winbindd now (we do not
341 attempt to map unknown SIDs to a UNIX identify).
342 15) Add 'winbind trusted domains only' parameter to force a domain
343 member. The server to use matching users names from /etc/passwd
344 for its domain (needed for domain member of a Samba domain).
345 16) Rename 'idmap only' to 'enable rid algorithm' for better clarity
347 17) Add support for multi-byte statcache code (bug #185)
348 18) Fix open mode race condition.
349 19) Implement winbindd local account management functions. Refer to
350 the "Winbind Changes" section for details.
351 20) Move RID allocation functions into idmap backend.
352 21) Fix parsing error that prevented publishing printers from a
353 Samba server in an AD domain.
354 22) Revive NTLMSSP support for named pipes.
355 23) More SCHANNEL fixes.
356 24) Correct SMB signing with NTLMSSP.
357 25) Fix coherency bug in print handle/printer object caching code
358 that could cause XP clients to infinitely loop while updating
359 their local printer cache.
360 26) Make winbindd use its dual-daemon mode by default (use -Y to
361 start as a single process).
362 27) Add support to nmbd and winbindd for 'smbcontrol <pid>
364 28) Correct problem with smbtar when dealing with files > 8Gb
369 Changes since 3.0beta1
370 ######################
372 1) Rework our smb signing code again, this factors out some of
373 the common MAC calculation code, and now supports multiple
374 outstanding packets (bug #40).
375 2) Enforce 'client plaintext auth', 'client lanman auth' and 'client
377 3) Correct timestamp problem on 64-bit machines (bug #140).
378 4) Add extra debugging statements to winbindd for tracking down
380 5) Fix bug when aliased 'winbind uid/gid' parameters are used.
381 ('winbind uid/gid' are now replaced with 'idmap uid/gid').
382 6) Added an auth flag that indicates if we should be allowed
383 to fall back to NTLMSSP for SASL if krb5 fails.
384 7) Fixed the bug that forced us not to use the winbindd cache when
385 we have a primary ADS domain and a secondary (trusted) NT4
387 8) Use lp_realm() to find the default realm for 'net ads password'.
388 9) Removed editreg from standard build until it is portable..
389 10) Fix domain membership for servers not running winbindd.
390 11) Correct race condition in determining the high water mark
391 in the idmap backend (bug #181).
392 12) Set the user's primary unix group from usrmgr.exe (partial
394 13) Show comments when doing 'net group -l' (bug #3).
395 14) Add trivial extension to 'net' to dump current local idmap
396 and restore mappings as well.
397 15) Modify 'net rpc vampire' to add new and existing users to
398 both the idmap and the SAM. This code needs further testing.
399 16) Fix crash bug in ADS searches.
400 17) Build libnss_wins.so as part of nsswitch target (bug #160).
401 18) Make net rpc vampire return an error if the sam sync RPC
403 19) Fail to join an NT 4 domain as a BDC if a workstation account
404 using our name exists.
405 20) Fix various memory leaks in server and client code
406 21) Remove the short option to --set-auth-user for wbinfo (-A) to
407 prevent confusion with the -a option (bug #158).
408 22) Added new 'map acl inherit' parameter.
409 23) Removed unused 'privileges' code from group mapping database.
410 24) Don't segfault on empty passdb backend list (bug #136).
411 25) Fixed acl sorting algorithm for Windows 2000 clients.
412 26) Replace universal group cache with netsamlogon_cache
413 from APPLIANCE_HEAD branch.
414 27) Fix autoconf detection issues surrounding --with-ads=yes
415 but no Krb5 header files installed (bug #152).
416 28) Add LDAP lookup for domain sequence number in case we are
417 joined using NT4 protocols to a native mode AD domain.
418 29) Fix backend method selection for trusted NT 4 (or 2k
420 30) Fixed bug that caused us to enumerate domain local groups
421 from native mode AD domains other than our own.
422 31) Correct group enumeration for viewing in the Windows
423 security tab (bug #110).
424 32) Consolidate the DC location code.
425 33) Moved 'ads server' functionality into 'password server' for
426 backwards compatibility.
427 34) Fix winbindd_idmap tdb upgrades from a 2.2 installation.
428 ( if you installed beta1, be sure to
429 'mv idmap.tdb winbindd_idmap.tdb' ).
430 35) Fix pdb_ldap segfaults, and wrong default values for
432 36) Enable negative connection cache for winbindd's ADS backend
434 37) Enable address caching for active directory DC's so we don't
435 have to hit DNS so much.
436 38) Fix bug in idmap code that caused mapping to randomly be
438 39) Add tdb locking code to prevent race condition when adding a
439 new mapping to idmap.
440 40) Fix 'map to guest = bad user' when acting as a PDC supporting
442 41) Prevent deadlock issues when running winbindd on a Samba PDC
443 to handle allocating uids & gids for trusted users and groups
444 42) added LOCALE patch from Steve Langasek (bug #122).
445 43) Add the 'guest' passdb backend automatically to the end of
446 the 'passdb backend' list if 'guest account' has a valid
448 44) Remove samstrict_dc auth method. Rework 'samstrict' to only
449 handle our local names (or domain name if we are a PDC).
450 Move existing permissive 'sam' method to 'sam_ignoredomain'
451 and make 'samstrict' the new default 'sam' auth method.
452 45) Match Windows NT4/2k behavior when authenticating a user with
453 and unknown domain (default to our domain if we are a DC or
454 domain member; default to our local name if we are a
456 46) Fix Get_Pwnam() to always fall back to lookup 'user' if the
457 'DOMAIN\user' lookup fails. This matches 2.2. behavior.
458 47) Fix the trustdom_cache code to update the list of trusted
459 domains when operating as a domain member and not using
461 48) Remove 'nisplussam' passdb backend since it has suffered for
462 too long without a maintainer.
467 ######################################################################
468 Upgrading from a previous Samba 3.0 beta
469 ########################################
471 Beginning with Samba 3.0.0beta3, the RID allocation functions
472 have been moved into winbindd. Previously these were handled
473 by each passdb backend. This means that winbindd must be running
474 to automatically allocate RIDs for users and/or groups. Otherwise,
475 smbd will use the 2.2 algorithm for generating new RIDs.
477 If you are using 'passdb backend = tdbsam' with a previous Samba
478 3.0 beta release (or possibly alpha), it may be necessary to
479 move the RID_COUNTER entry from /usr/local/samba/private/passdb.tdb
480 to winbindd_idmap.tdb. To do this:
482 1) Ensure that winbindd_idmap.tdb exists (launch winbindd at least
484 2) build tdbtool by executing 'make tdbtool' in the source/tdb/
486 3) run: (note that 'tdb>' is the tool's prompt for input)
488 root# ./tdbtool /usr/local/samba/private/passdb.tdb
489 tdb> show RID_COUNTER
493 [000] 0A 52 00 00 .R.
495 tdb> move RID_COUNTER /usr/local/samba/var/locks/winbindd_idmap.tdb
499 If you are using 'passdb backend = ldapsam', it will be necessary to
500 store idmap entries in the LDAP directory as well (i.e. idmap backend
501 = ldap). Refer to the 'net idmap' command for more information on
502 migrating SID<->UNIX id mappings from one backend to another.
504 If the RID_COUNTER record does not exist, then these instructions are
505 unneccessary and the new RID_COUNTER record will be correctly generated
510 ########################
511 Upgrading from Samba 2.2
512 ########################
514 This section is provided to help administrators understand the details
515 involved with upgrading a Samba 2.2 server to Samba 3.0.
521 Many of the options to the GNU autoconf script have been modified
522 in the 3.0 release. The most noticeable are:
524 * removal of --with-tdbsam (is now included by default; see section
525 on passdb backends and authentication for more details)
527 * --with-ldapsam is now on used to provided backward compatible
528 parameters for LDAP enabled Samba 2.2 servers. Refer to the passdb
529 backend and authentication section for more details
531 * inclusion of non-standard passdb modules may be enabled using
532 --with-expsam. This includes an XML backend and a mysql backend.
534 * removal of --with-msdfs (is now enabled by default)
536 * removal of --with-ssl (no longer supported)
538 * --with-utmp now defaults to 'yes' on supported systems
540 * --with-sendfile-support is now enabled by default on supported
547 This section contains a brief listing of changes to smb.conf options
548 in the 3.0.0 release. Please refer to the smb.conf(5) man page for
549 complete descriptions of new or modified parameters.
551 Removed Parameters (order alphabetically):
554 * alternate permissions
557 * code page directory
561 * force unknown acl user
565 * printer driver file
566 * printer driver location
574 New Parameters (new parameters have been grouped by function):
578 * abort shutdown script
581 User and Group Account Management
582 ---------------------------------
585 * add user to group script
586 * algorithmic rid base
587 * delete group script
588 * delete user from group script
590 * set primary group script
606 * paranoid server security
616 * hide unwriteable files
618 * kernel change notify
628 * max reported print jobs
630 UNICODE and Character Sets
631 --------------------------
637 SID to uid/gid Mappings
638 -----------------------
642 * winbind enable local accounts
643 * winbind trusted domains only
644 * template primary group
645 * enable rid algorithm
652 * ldap machine suffix
656 General Configuration
657 ---------------------
661 Modified Parameters (changes in behavior):
663 * encrypt passwords (enabled by default)
664 * mangling method (set to 'hash2' by default)
667 * restrict anonymous (integer value)
668 * security (new 'ads' value)
669 * strict locking (enabled by default)
670 * unix extensions (enabled by default)
671 * winbind cache time (increased to 5 minutes)
672 * winbind uid (deprecated in favor of 'idmap uid')
673 * winbind gid (deprecated in favor of 'idmap gid')
679 This section contains brief descriptions of any new databases
680 introduced in Samba 3.0. Please remember to backup your existing
681 ${lock directory}/*tdb before upgrading to Samba 3.0. Samba will
682 upgrade databases as they are opened (if necessary), but downgrading
683 from 3.0 to 2.2 is an unsupported path.
685 Name Description Backup?
686 ---- ----------- -------
687 account_policy User policy settings yes
688 gencache Generic caching db no
689 group_mapping Mapping table from Windows yes
690 groups/SID to unix groups
691 winbindd_idmap ID map table from SIDS to UNIX yes
693 namecache Name resolution cache entries no
694 netsamlogon_cache Cache of NET_USER_INFO_3 structure no
695 returned as part of a successful
696 net_sam_logon request
697 printing/*.tdb Cached output from 'lpq no
698 command' created on a per print
700 registry Read-only samba registry skeleton no
701 that provides support for exporting
702 various db tables via the winreg RPCs
708 The following issues are known changes in behavior between Samba 2.2 and
709 Samba 3.0 that may affect certain installations of Samba.
711 1) When operating as a member of a Windows domain, Samba 2.2 would
712 map any users authenticated by the remote DC to the 'guest account'
713 if a uid could not be obtained via the getpwnam() call. Samba 3.0
714 rejects the connection as NT_STATUS_LOGON_FAILURE. There is no
715 current work around to re-establish the 2.2 behavior.
717 2) When adding machines to a Samba 2.2 controlled domain, the
718 'add user script' was used to create the UNIX identity of the
719 machine trust account. Samba 3.0 introduces a new 'add machine
720 script' that must be specified for this purpose. Samba 3.0 will
721 not fall back to using the 'add user script' in the absence of
722 an 'add machine script'
725 ######################################################################
726 Passdb Backends and Authentication
727 ##################################
729 There have been a few new changes that Samba administrators should be
730 aware of when moving to Samba 3.0.
732 1) encrypted passwords have been enabled by default in order to
733 inter-operate better with out-of-the-box Windows client
734 installations. This does mean that either (a) a samba account
735 must be created for each user, or (b) 'encrypt passwords = no'
736 must be explicitly defined in smb.conf.
738 2) Inclusion of new 'security = ads' option for integration
739 with an Active Directory domain using the native Windows
740 Kerberos 5 and LDAP protocols.
742 MIT kerberos 1.3.1 supports the ARCFOUR-HMAC-MD5 encryption
743 type which is neccessary for servers on which the
744 administrator password has not been changed, or kerberos-enabled
745 SMB connections to servers that require Kerberos SMB signing.
746 Besides this one difference, either MIT or Heimdal Kerberos
747 distributions are usable by Samba 3.0.
750 Samba 3.0 also includes the possibility of setting up chains
751 of authentication methods (auth methods) and account storage
752 backends (passdb backend). Please refer to the smb.conf(5)
753 man page for details. While both parameters assume sane default
754 values, it is likely that you will need to understand what the
755 values actually mean in order to ensure Samba operates correctly.
757 The recommended passdb backends at this time are
759 * smbpasswd - 2.2 compatible flat file format
760 * tdbsam - attribute rich database intended as an smbpasswd
761 replacement for stand alone servers
762 * ldapsam - attribute rich account storage and retrieval
763 backend utilizing an LDAP directory.
764 * ldapsam_compat - a 2.2 backward compatible LDAP account
767 Certain functions of the smbpasswd(8) tool have been split between the
768 new smbpasswd(8) utility, the net(8) tool, and the new pdbedit(8)
769 utility. See the respective man pages for details.
772 ######################################################################
776 This section outlines the new features affecting Samba / LDAP
782 A new object class (sambaSamAccount) has been introduced to replace
783 the old sambaAccount. This change aids us in the renaming of attributes
784 to prevent clashes with attributes from other vendors. There is a
785 conversion script (examples/LDAP/convertSambaAccount) to modify and LDIF
786 file to the new schema.
790 $ ldapsearch .... -b "ou=people,dc=..." > old.ldif
791 $ convertSambaAccount <DOM SID> old.ldif new.ldif
793 The <DOM SID> can be obtained by running 'net getlocalsid <DOMAINNAME>'
794 on the Samba PDC as root.
796 The old sambaAccount schema may still be used by specifying the
797 "ldapsam_compat" passdb backend. However, the sambaAccount and
798 associated attributes have been moved to the historical section of
799 the schema file and must be uncommented before use if needed.
800 The 2.2 object class declaration for a sambaAccount has not changed
801 in the 3.0 samba.schema file.
803 Other new object classes and their uses include:
805 * sambaDomain - domain information used to allocate rids
806 for users and groups as necessary. The attributes are added
807 in 'ldap suffix' directory entry automatically if
808 an idmap uid/gid range has been set and the 'ldapsam'
809 passdb backend has been selected.
811 * sambaGroupMapping - an object representing the
812 relationship between a posixGroup and a Windows
813 group/SID. These entries are stored in the 'ldap
814 group suffix' and managed by the 'net groupmap' command.
816 * sambaUnixIdPool - created in the 'ldap idmap suffix' entry
817 automatically and contains the next available 'idmap uid' and
820 * sambaIdmapEntry - object storing a mapping between a
821 SID and a UNIX uid/gid. These objects are created by the
822 idmap_ldap module as needed.
824 * sambaSidEntry - object representing a SID alone, as a Structural
825 class on which to build the sambaIdmapEntry.
828 New Suffix for Searching
829 ------------------------
831 The following new smb.conf parameters have been added to aid in directing
832 certain LDAP queries when 'passdb backend = ldapsam://...' has been
835 * ldap suffix - used to search for user and computer accounts
836 * ldap user suffix - used to store user accounts
837 * ldap machine suffix - used to store machine trust accounts
838 * ldap group suffix - location of posixGroup/sambaGroupMapping entries
839 * ldap idmap suffix - location of sambaIdmapEntry objects
841 If an 'ldap suffix' is defined, it will be appended to all of the
842 remaining sub-suffix parameters. In this case, the order of the suffix
843 listings in smb.conf is important. Always place the 'ldap suffix' first
846 Due to a limitation in Samba's smb.conf parsing, you should not surround
847 the DN's with quotation marks.
853 Samba 3.0 supports an ldap backend for the idmap subsystem. The
854 following options would inform Samba that the idmap table should be
855 stored on the directory server onterose in the "ou=idmap,dc=plainjoe,
860 idmap backend = ldap:ldap://onterose/
861 ldap idmap suffix = ou=idmap,dc=plainjoe,dc=org
862 idmap uid = 40000-50000
863 idmap gid = 40000-50000
865 This configuration allows winbind installations on multiple servers to
866 share a uid/gid number space, thus avoiding the interoperability problems
867 with NFS that were present in Samba 2.2.
871 ######################################################################
872 Trust Relationships and a Samba Domain
873 ######################################
875 Samba 3.0.0beta2 is able to utilize winbindd as the means of
876 allocating uids and gids to trusted users and groups. More
877 information regarding Samba's support for establishing trust
878 relationships can be found in the Samba-HOWTO-Collection included
879 in the docs/ directory of this release.
881 First create your Samba PDC and ensure that everything is
882 working correctly before moving on the trusts.
884 To establish Samba as the trusting domain (named SAMBA) from a Windows NT
885 4.0 domain named WINDOWS:
887 1) create the trust account for SAMBA in "User Manager for Domains"
888 2) connect the trust from the Samba domain using
889 'net rpc trustdom establish GLASS'
891 To create a trustlationship with SAMBA as the trusted domain:
893 1) create the initial trust account for GLASS using
894 'smbpasswd -a -i GLASS'. You may need to create a UNIX
895 account for GLASS$ prior to this step (depending on your
896 local configuration).
897 2) connect the trust from a WINDOWS DC using "User Manager
900 Now join winbindd on the Samba PDC to the SAMBA domain using
901 the normal steps for adding a Samba server to an NT4 domain:
902 (note that smbd & nmbd must be running at this point)
904 root# net rpc join -U root
905 Password: <enter root password from smbpasswd file here>
907 Start winbindd and test the join with 'wbinfo -t'.
909 Now test the trust relationship by connecting to the SAMBA DC
910 (e.g. POGO) as a user from the WINDOWS domain:
912 $ smbclient //pogo/netlogon -U Administrator -W WINDOWS
915 Now connect to the WINDOWS DC (e.g. CRYSTAL) as a Samba user:
917 $ smbclient //crystal/netlogon -U root -W WINDOWS
920 ######################################################################
924 Beginning with Samba3.0.0beta3, winbindd has been given new account
925 manage functionality equivalent to the 'add user script' family of
926 smb.conf parameters. The idmap design has also been changed to
927 centralize control of foreign SID lookups and matching to UNIX
931 Brief Description of Changes
932 ----------------------------
934 1) The sid_to_uid() family of functions (smbd/uid.c) have been
935 reverted to the 2.2.x design. This means that when resolving a
936 SID to a UID or similar mapping:
938 a) First consult winbindd
939 b) perform a local lookup only if winbindd fails to
940 return a successful answer
942 There are some variations to this, but these two rules generally
945 2) All idmap lookups have been moved into winbindd. This means that
946 a server must run winbindd (and support NSS) in order to achieve
947 any mappings of SID to dynamically allocated UNIX ids. This was
948 a conscious design choice.
950 3) New functions have been added to winbindd to emulate the 'add user
951 script' family of smbd functions without requiring that external
952 scripts be defined. This functionality is controlled by the 'winbind
953 enable local accounts' smb.conf parameter (enabled by default).
955 However, this account management functionality is only supported
956 in a local tdb (winbindd_idmap.tdb). If these new UNIX accounts
957 must be shared among multiple Samba servers (such as a PDC and BDCs),
958 it will be necessary to define your own 'add user script', et. al.
959 programs that place the accounts/groups in some form of directory
960 such as NIS or LDAP. This requirement was deemed beyond the scope
961 of winbind's account management functions. Solutions for
962 distributing UNIX system information have been deployed and tested
963 for many years. We saw no need to reinvent the wheel.
965 4) A member of a Samba controlled domain running winbindd is now able
966 to map domain users directly onto existing UNIX accounts while still
967 automatically creating accounts for trusted users and groups. This
968 behavior is controlled by the 'winbind trusted domains only' smb.conf
969 parameter (disabled by default to provide 2.2.x winbind behavior).
971 5) Group mapping support is wrapped in the local_XX_to_XX() functions
972 in smbd/uid.c. The reason that group mappings are not included
973 in winbindd is because the purpose of Samba's group map is to
974 match any Windows SID with an existing UNIX group. These UNIX
975 groups can be created by winbindd (see next section), but the
976 SID<->gid mapping is retreived by smbd, not winbindd.
982 * security = server running winbindd to allocate accounts on demand
984 * Samba PDC running winbindd to handle the automatic creation of UNIX
985 identities for machine trust accounts
987 * Automtically creating UNIX user and groups when migrating a Windows NT
988 4.0 PDC to a Samba PDC. Winbindd must be running when executing
989 'net rpc vampire' for this to work.
992 ######################################################################
996 * There are several bugs currently logged against the 3.0 codebase
997 that affect the use of NT 4.0 GUI domain management tools when run
998 against a Samba 3.0 PDC. This bugs should be released in an early
1001 Please refer to https://bugzilla.samba.org/ for a current list of bugs
1002 filed against the Samba 3.0 codebase.
1005 ######################################################################
1006 Reporting bugs & Development Discussion
1007 #######################################
1009 Please discuss this release on the samba-technical mailing list or by
1010 joining the #samba-technical IRC channel on irc.freenode.net.
1012 If you do report problems then please try to send high quality
1013 feedback. If you don't provide vital information to help us track down
1014 the problem then you will probably be ignored.
1016 A new bugzilla installation has been established to help support the
1017 Samba 3.0 community of users. This server, located at
1018 https://bugzilla.samba.org/, has replaced the older jitterbug server
1019 previously located at http://bugs.samba.org/.