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samba-mirror/WHATSNEW.txt
Jelmer Vernooij 950a6d980a Add smbget utility, a simple wget-like utility that uses libsmbclient. 
Supports recursive downloads and resume, progress indication and shows
estimated time remaining.
(This used to be commit 82bd1b45a4)
2004-01-07 00:43:52 +00:00

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WHATS NEW IN Samba 3.0.2pre1
January XX, 2004
===============================
This is a preview release of the Samba 3.0.2 code base and is
provided for testing only. This release is *not* intended for
production servers. Use at your own risk.
There have been several bug fixes since the 3.0.1 release that
we feel are important to make available to the Samba community
for wider testings. See the "Changes" section for details on
exact updates.
######################################################################
Changes
#######
Changes since 3.0.1
----------------------
Please refer to the CVS log for the SAMBA_3_0 branch for complete
details. The list of changes per contributor are as follows:
Parameter Name Action
-------------- ------
ldap replication sleep New
Commits
-------
o Jeremy Allison <jra@samba.org>
* Tidy up of NTLMSSP code.
* Fixes for SMB signing errors
* BUG 815: Workaround NT4 bug to support plaintext
password logins and UNICODE.
o Petri Asikainen <paca@sci.fi>
* BUG 330, 387:Fix single valued attribute updates when
working with Novell NDS.
o Andrew Bartlet <abartlet@samba.org>
* Correctly handle per-pipe NTLMSSP inside a NULL session.
* Fix segfault in gencache
* Fix early free() of encrypted_session_key.
* Change DC lookup routines to more carefully separate
DNS names (realms) from NetBIOS domain names.
* Add new sid_to_dn() utility function for internal winbindd use.
* Refactor cli_ds_enum_domain_trusts().
* BUG 707: Implement range retrieval of ADS attributes (based on
work from Volker <vl@samba.org> and Guenther Deschner
<gd@suse.com>).
* Automatically initialize the signing engine if a session key is
available.
* BUG 916: Do not perform a + -> ' ' substitution for squid URL
encoded strings, only form input in SWAT.
* Ensure Samba resets the NTLMSSP state for new negotiate packets.
* Add 2-byte alignments in net_samlogon() queries to parse odd-length
plain text passwords.
* Allow Windows groups with no members in winbindd.
* Allow normal authentication in the absence of a server
generated session key.
* More optimizations for looking up UNIX group lists.
* Clean up error codes and return values for pam_winbindd
and winbindd PAM interface.
* Fix restring return values in ntlm_auth tool.
o Dmitry Butskoj <buc@odusz.elektra.ru>
* Fix for special files being hidden from admins.
o Gerald (Jerry) Carter <jerry@samba.org>
* Fix bug in the lanman session key generation. Caused
"decode_pw: incorrect password length" error messages.
* Save the right case for the located user name in
fill_sam_account(). Fixes %U/%u expansion for win9x clients.
* BUG 897: Add well known rid for pre win2k compatible access
group.
* BUG 887: Correct typo in delete user script example.
* Use short lived TALLOC_CTX* for allocating printer objects
from the print handle cache.
* BUG 912: Fix check for HAVE_MEMORY_KEYTAB.
o Guenther Deschner <gd@suse.com>
* Install smbwrapper.so should be put into the $(libdir)
and not $(bindir).
* Add the capability to specify the new user password
for "net ads password" on the command line.
* Correctly detect AFS headers on SuSE.
o James Flemer <jflemer@uvm.edu>
* Fix AIX compile bug by linking HAVE_ATTR_LIST to HAVE_SYS_ATTRIBUTES_H.
o Volker Lendecke <vl@samba.org>
* BUG 583: Ensure that user names always contain the short version
of the domain name.
* Fix our parsing of the LDAP uri.
* Don't show the 'afs username map' in the SWAT basic view.
* Fix SMB signing issues in relation to failed NTLMSSP logins.
* BUG 924: Fix return codes in smbtorture harness.
* Always lower-case usernames before handing it to AFS code.
o Jianliang Lu <j.lu@tiesse.com>
* Ensure we delete the group mapping before calling the delete
group script.
* Define well known RID for managing the "Power Users" group.
o Stefan Metzmacher <metze@metzemix.de>
* Implement LDAP rebind sleep patch.
* Revert to 2.2 quota code because of so many broken quota files
out there.
o <ndb@theghet.to>
* Allow an existing LDAP machine account to be re-used when
joining an AD domain.
o James Peach <jpeach@sgi.com>
* BUG 889: Change smbd to use pread/pwrite on platforms that
support these calls. Can lead to a significant speed increase.
o Tim Potter <tpot@samba.org>
* BUG 924: Fix typo in RW2 torture test.
o Richard Sharpe <shape@samba.org>
* Small fixes to torture.c to cleanup the error handling
and prevent crashes.
o J. Tournier <jerome.tournier@IDEALX.com>
* Small fixes for the smbldap-tool scripts.
o Jelmer Vernooij <jelmer@samba.org>
* Put functions for generating SQL queries in pdb_sql.c
* Add pgSQL backend (based on patch by Hamish Friedlander)
* BUG 908: Fix -s option to smbcontrol.
* Add smbget utility - a wget-clone for the SMB/CIFS protocol
Changes since 3.0.0
----------------------
Parameter Name Action
-------------- ------
hide local users Removed
mangled map Deprecated
mangled stack Removed
passwd chat timeout New
commits
-------
o Change the interface for init_unistr2 to not take a length
but a flags field. We were assuming that
2*strlen(mb_string) == length of ucs2-le string. (bug 480).
o Allow d_printf() to handle strings with escaped quotation
marks since the msg file includes the escape character (bug 489).
o Fix bad html table row termination in SWAT wizard code (bug 413).
o Fix to parse the level-2 strings.
o Fix for "valid users = %S" in [homes]. Fix read/write
list as well.
o Change AC_CHECK_LIB_EXT to prepend libraries instead of append.
This is the same way AC_CHECK_LIB works (bug 508).
o Testparm output fixes for clarity.
o Fix broken wins hook functionality -- i18n bug (bug 528).
o Take care of condition where DOS and NT error codes must differ.
o Default to using only built-in charsets when a working iconv
implementation cannot be located.
o Wrap internals of sys_setgroups() so the sys_XX() call can
be done unconditionally (bug 550).
o Remove duplicate smbspool link on SWAT's front page (bug 541).
o Save and restore CFLAGS before/after AC_PROG_CC. Ensures that
--enable-debug=[yes|no] works correctly.
o Allow ^C to interrupt smbpasswd if using our getpass
(e.g. smbpasswd command).
o Support signing only on RPC's (bug 167).
o Correct bug that prevented Excel 2000 clients from opening
files marked as read-only.
o Portability fix bugs 546 - 549).
o Explicitly initialize the value of AR for vendor makes that don't
do this (e.g. HPUX 11). (bug 552).
o More i18n fixes for SWAT (bug 413).
o Change the cwd before the postexec script to ensure that a
umount will succeed.
o Correct double free that caused winbindd to crash when a DC
is rebooted (bug 437).
o Fix incorrect mode sum (bug 562).
o Canonicalize SMB_INFO_ALLOCATION in the same was as
SMB_FS_FULL_SIZE_INFORMATION (bug 564).
o Add script to generate *msg files.
o Add Dutch SWAT translation file.
o Make sure to call get_user_groups() with the full winbindd
name for a user if he/she has one (bug 406).
o Fix up error code returns from Samba4 tester. Ensure invalid
paths are validated the same way.
o Allow Samba3 to pass the Samba4 RAW-READ tests.
o Refuse to configure if --with-expsam=$BACKEND was used but no
libraries were found for $BACKEND.
o Move sysquotas autoconf tests to a separate file.
o Match W2K w.r.t. writelock and writeclose. Samba4 torture
tester
o Make sure that the files that contain the static_init_$subsystem;
macro get recompiled after configure by removing the object
files.
o Ensure canceling a blocking lock returns the correct error
message.
o Match Samba 2.2 behavior; make ACB_NORMAL the default ACB value.
o Updated Japanese welcome file in SWAT.
o Fix to nt-time <-> unix-time functions reversible.
o Ensure that winbindd uses the the escaped DN when querying
an AD ldap server.
o Fix portability issues when compiling (bug 505, 550)
o Compile fix for tdbbackup when Samba needs to override
non-C99 compliant implementations of snprintf().
o Use @PICSUFFIX@ instead of .po in Makefile.in (bug 574).
o Make sure we break out of samsync loop on error.
o Ensure error code path doesn't free unmalloc()'d memory
(bug 628).
o Add configure test for krb5_keytab_entry keyblock vs key
member (bug 636).
o Fixed spinlocks.
o Modified testparm so that all output so all debug output goes
to stderr, and all file processing goes to stdout.
o Fix error return code for BUFFER_TOO_SMALL in smbcacls
and smbcquotas.
o Fix "NULL dest in safe_strcpy()" log message by ensuring that
we have a devmode before copying a string to the devicename.
o Support mapping REALM.COM\user to a local user account (without
running winbindd) for compatibility with 2.2.x release.
o Ensure we don't use mmap() on blacklisted systems.
o fixed a number of bugs and memory leaks in the AIX
winbindd shim
o Call initgroups() in SWAT before becomming the user so that
secondary group permissions can be used when writing to
smb.conf.
o Fix signing problems when reverse connecting back to a
client for printer notify
o Fix signing problems caused by a miss-sequence bug.
o Missing map in errormap for ERROR_MORE_DATA -> ERRDOS, ERRmoredata.
Fixes NEXUS tools running on Win9x clients (bug 64).
o Don't leave the domain field uninitialized in cli_lsa.c if some
SID could not be mapped.
o Fix segfault in mount.cifs helper when there is no options
specified during mount.
o Change the \n after the password prompt to go to tty instead
of stdout (bug 668).
o Stop net -P from prompting for machine account password (bug 451).
o Change in behavior to Not only change the effective uid but also
the real uid when becoming unprivileged.
o Cope with Exchange 5.5 cleartext pop password auth.
o New files for support of initshutdown pipe. Win2k doesn't
respond properly to all requests on the winreg pipe, so we need
to handle this new pipe (bug 534).
o Added more va_copy() checks in configure.in.
o Include fixes for libsmbclient build problems.
o Missing UNIX -> DOS codepage conversion in lanman.c.
o Allow DFMS-S filenames can now have arbitrary case (bug 667).
o Parameterize the listen backlog in smbd and make it larger by
default. A backlog of 5 is way too small these days.
o Check for an invalid fid before dereferencing the fsp pointer
(bug 696).
o Remove invalid memory frees and return codes in pdb_ldap.c.
o Prompt for password when invoking --set-auth-user and no
password is given.
o Bind the nmbd sending socket to the 'socket address'.
o Re-order link command for smbd, rpcclient and smbpasswd to ensure
$LDFLAGS occurs before any library specification (bug 661).
o Fix large number of printf() calls for 64-bit size_t.
o Fix AC_CHECK_MEMBER so that SLES8 does correctly finds the
keyblock in the krb5 structs.
o Remove #include <compat.h> in hopes to avoid problems with
apache header files.
o Correct winbindd build problems on HP-UX 11.
o Lowercase netgroups lookups (bug 703).
o Use the actual size of the buffer in strftime instead of a made
up value which just happens to be less than sizeof(fstring).
(bug 713).
o Add ldaplibs to pdbedit link line (bug 651).
o Fix crash bug in smbclient completion (bug 659).
o Fix packet length for browse list reply (bug 771).
o Fix coredump in cli_get_backup_list().
o Make sure that we expand %N (bug 612).
o Allow rpcclient adddriver command to specify printer driver
version (bug 514).
o Compile tdbdump by default.
o Apply patches to fix iconv detection for FreeBSD.
o Do not allow the 'guest account' to be added to a passdb backend
using smbpasswd or pdbedit (bug 624).
o Save LDFLAGS during iconv detection (bug 57).
o Run krb5 logins through the username map if the winbindd
lookup fails (bug 698).
o Add const for lp_set_name_resolve_order() to avoid compiler
warnings (bug 471).
o Add support for the %i macro in smb.conf to stand in for the for
the local IP address to which a client connected.
o Allow winbindd to match local accounts to domain SID when
'winbind trusted domains only = yes' (bug 680).
o Remove code in idmap_ldap that searches the user suffix and group
suffix. It's not needed and provides inconsistent functionality
from the tdb backend.
o Patch to handle munged dial string for Windows 200 TSE.
o Correct the "smbldap_open: cannot access when not root error"
messages when looking up group information (bug 281).
o Skip over the winbind separator when looking up a user.
This fixes the bug that prevented local users from
matching an AD user when not running winbindd (bug 698).
o Fix a problem with configure on *BSD systems. Make sure
we add -liconv etc to LDFLAGS.
o Fix core dump bug when "security = server" and the authentication
server goes away.
o Correct crash bug due to an empty munged dial string.
o Show files locked by a specific user (smbstatus -u 'user')
(bug 590).
o Fix bug preventing print jobs from display in the queue
monitor used by Windows NT and later clients (bug 660).
o Fix several reported problems with point-n-print from
Windows 2000/XP clients due to a bug in the EnumPrinterDataEx()
reply (bug 338, 527 & 643).
o Fix a handful of potential memory leaks in the LDAP code used
by ldapsam[_compat] and the LDAP idmap backend.
o Fix for pdbedit error code returns (bug 763).
o Make sure we only enumerate group mapping entries (not
/etc/group) even when doing local aliases.
o Relax check on the pipe name in a dce/rpc bind response to work
around issues with establishing trusts to a Windows 2003 domain.
o Ensure we mangle names ending in '.' in hash2 mangling method.
o Correct parsing issues with munged dial string.
o Fix bugs in quota support for XFS.
o Add a cleaner method for applications that need to provide name->SID
mappings to do this via NSS rather than having to know the
winbindd pipe protocol.
o Adds a variant of the winbindd_getgroups() call called
winbindd_getusersids() that provides direct SID->SIDs listing of a
users supplementary groups. This is enough to allow non-Samba
applications to do ACL checking.
o Make sure we don't append the 'ldap suffix' when writing out the
'ldap XXX suffix' values in SWAT (bug 328).
o Fix renames across file systems.
o Ensure that items in a list of strings containing whitespace are
written out surrounded by single quotes. This means that both
double and single quotes are now used to surround strings in
smb.conf (bug 481).
o Enable SWAT to correctly determine if winbindd is running (bug
398).
o Include WWW-Authenticate field in 401 response for bad auth
attempt (bug 629).
o Add support for NTLM2 (NTLMv2 session security).
o Add support for variable-length session keys.
o More privilege fixes for group enumeration in LDAP (bug 281).
o Use the dns name (or IP) as the originating client name when
using CUPS (bug 467).
o Fix various SMB signing bugs.
o Fix ACL propagation on a DFS root (bug 263).
o Disable NTLM2 for RPC pipes.
o Allow the client to specify the NTLM2 flags got NTLMSSP
authentication.
o Change the name of the job passed off to cups from "Test Page" to
"smbprn.00000033 Test Page" so that we can get the smb jobid back.
This allow users to delete jobs with cups printing backend (partial
work on bug 770).
o Fix build of winbindd with static pdb modules.
o Retrieve the correct ACL group bits if the file has an ACL
(bug 802).
o Implement "net rpc group members": Get members of a domain group
in human-readable format.
o Add MacOSX (Darwin) specific charset module code.
o Use samr_dispinfo(level == 1) for enumerating domain users so we
can include the full name in gecos field (bug 587).
o Add support for winbind's NSS library on FeeeBSD 5.1 (bug 797).
o Implement 'net rpc group list [global|local|builtin]*' for a
select listing of the respective user databases.
o Don't automatically set NT status code flag unless client tells
us it can cope.
o Add 'net status [sessions|shares] [parseable]'.
o Don't mistake pre-existing UNIX jobs for smb jobs (remainder of
bug 770).
o Add 'Replicator' and 'RAS Servers' to list of builtin SIDs
(bug 608).
o Fix inverted logic in hosts allow/deny checks caused by s/strcmp/strequal/
(bug 846).
o Implement correct version SamrRemoveSidForeignDomain() (bug 252).
o Fix typo in 'hash' mangling algorithm.
o Support munged dial for ldapsam (bug 800).
o Fix process_incoming_data() to return the number of bytes handled this
call whether we have a complete PDU or not; fixes bug with multiple
PDU request rpc's broken over SMBwriteX calls each.
o Fix incorrect smb flags2 for connections to pre-NT servers (causes
smbclient to fail to OS2 for example) (bug 821).
o Update version string in smbldap-tools Makefile to 0.8.2.
o Correct a problem with "net rpc vampire" mis-parsing the
alias member info reply.
o Ensure the ${libdir} is created by the installclientlib script.
o Fix detection of Windows 2003 client architecture in the smb.conf
%a variable.
o Ensure that smbd calls the add user script for a missing UNIX
user on kerberos auth call (bug 445).
o Fix bugs in hosts allow/deny when using a mismatched
network/netmask pair.
o Protect alloc_sub_basic() from crashing when the source string
is NULL (partial work on bug 687).
o Fix spinlocks on IRIX.
o Corrected some bad destination paths when running "configure
--with-fhs".
o Add packaging files for Fedora Core 1.
o Correct bug in SWAT install script for non-english languages.
o Support character set ISO-8859-1 internally (bug 558).
o Fixed more LDAP access errors when looking up group mappings
(bug 281).
o Fix UNISTR2 length bug in LsaQueryInfo(3) that caused SID
resolution to fail on local files on on domain members
(bug 875).
o Fix uninitialized variable in passdb.c.
o Fix formal parameter type in get_static() in nsswitch/wins.c.
o Fix problem mounting directories when mount.cifs is installed
with the setuid bit on.
o Fix bug that prevent --mandir from overriding the defaults
given in the --with-fhs macro.
o Fix bug in in-memory Kerberos keytab detection routines
in configure.in
######################################################################
=======================================
The original 3.0.0 release notes follow
=======================================
Major new features:
-------------------
1) Active Directory support. Samba 3.0 is now able to
join a ADS realm as a member server and authenticate
users using LDAP/Kerberos.
2) Unicode support. Samba will now negotiate UNICODE on the wire
and internally there is now a much better infrastructure for
multi-byte and UNICODE character sets.
3) New authentication system. The internal authentication system
has been almost completely rewritten. Most of the changes are
internal, but the new auth system is also very configurable.
4) New default filename mangling system.
5) A new "net" command has been added. It is somewhat similar to
the "net" command in windows. Eventually we plan to replace
numerous other utilities (such as smbpasswd) with subcommands
in "net".
6) Samba now negotiates NT-style status32 codes on the wire. This
improves error handling a lot.
7) Better Windows 2000/XP/2003 printing support including publishing
printer attributes in active directory.
8) New loadable module support for passdb backends and character
sets.
9) New default dual-daemon winbindd support for better performance.
10) Support for migrating from a Windows NT 4.0 domain to a Samba
domain and maintaining user, group and domain SIDs.
11) Support for establishing trust relationships with Windows NT 4.0
domain controllers.
12) Initial support for a distributed Winbind architecture using
an LDAP directory for storing SID to uid/gid mappings.
13) Major updates to the Samba documentation tree.
14) Full support for client and server SMB signing to ensure
compatibility with default Windows 2003 security settings.
15) Improvement of ACL mapping features based on code donated by
Andreas Grünbacher.
Plus lots of other improvements!
Additional Documentation
------------------------
Please refer to Samba documentation tree (included in the docs/
subdirectory) for extensive explanations of installing, configuring
and maintaining Samba 3.0 servers and clients. It is advised to
begin with the Samba-HOWTO-Collection for overviews and specific
tasks (the current book is up to approximately 400 pages) and to
refer to the various man pages for information on individual options.
We are very glad to be able to include the second edition of
"Using Samba" by Jay Ts, Robert Eckstein, and David Collier-Brown
(O'Reilly & Associates) in this release. The book is available
on-line at http://samba.org/samba/docs/ and is included with
the Samba Web Administration Tool (SWAT). Thanks to the authors and
publisher for making "Using Samba" under the GNU Free Documentation
License.
######################################################################
Upgrading from a previous Samba 3.0 beta
########################################
Beginning with Samba 3.0.0beta3, the RID allocation functions
have been moved into winbindd. Previously these were handled
by each passdb backend. This means that winbindd must be running
to automatically allocate RIDs for users and/or groups. Otherwise,
smbd will use the 2.2 algorithm for generating new RIDs.
If you are using 'passdb backend = tdbsam' with a previous Samba
3.0 beta release (or possibly alpha), it may be necessary to
move the RID_COUNTER entry from /usr/local/samba/private/passdb.tdb
to winbindd_idmap.tdb. To do this:
1) Ensure that winbindd_idmap.tdb exists (launch winbindd at least
once)
2) build tdbtool by executing 'make tdbtool' in the source/tdb/
directory
3) run: (note that 'tdb>' is the tool's prompt for input)
root# ./tdbtool /usr/local/samba/private/passdb.tdb
tdb> show RID_COUNTER
key 12 bytes
RID_COUNTER
data 4 bytes
[000] 0A 52 00 00 .R.
tdb> move RID_COUNTER /usr/local/samba/var/locks/winbindd_idmap.tdb
....
record moved
If you are using 'passdb backend = ldapsam', it will be necessary to
store idmap entries in the LDAP directory as well (i.e. idmap backend
= ldap). Refer to the 'net idmap' command for more information on
migrating SID<->UNIX id mappings from one backend to another.
If the RID_COUNTER record does not exist, then these instructions are
unneccessary and the new RID_COUNTER record will be correctly generated
if needed.
########################
Upgrading from Samba 2.2
########################
This section is provided to help administrators understand the details
involved with upgrading a Samba 2.2 server to Samba 3.0.
Building
--------
Many of the options to the GNU autoconf script have been modified
in the 3.0 release. The most noticeable are:
* removal of --with-tdbsam (is now included by default; see section
on passdb backends and authentication for more details)
* --with-ldapsam is now on used to provided backward compatible
parameters for LDAP enabled Samba 2.2 servers. Refer to the passdb
backend and authentication section for more details
* inclusion of non-standard passdb modules may be enabled using
--with-expsam. This includes an XML backend and a mysql backend.
* removal of --with-msdfs (is now enabled by default)
* removal of --with-ssl (no longer supported)
* --with-utmp now defaults to 'yes' on supported systems
* --with-sendfile-support is now enabled by default on supported
systems
Parameters
----------
This section contains a brief listing of changes to smb.conf options
in the 3.0.0 release. Please refer to the smb.conf(5) man page for
complete descriptions of new or modified parameters.
Removed Parameters (order alphabetically):
* admin log
* alternate permissions
* character set
* client codepage
* code page directory
* coding system
* domain admin group
* domain guest group
* force unknown acl user
* hide local users
* nt smb support
* postscript
* printer driver
* printer driver file
* printer driver location
* status
* strip dot
* total print jobs
* use rhosts
* valid chars
* vfs options
New Parameters (new parameters have been grouped by function):
Remote management
-----------------
* abort shutdown script
* shutdown script
User and Group Account Management
---------------------------------
* add group script
* add machine script
* add user to group script
* algorithmic rid base
* delete group script
* delete user from group script
* passdb backend
* set primary group script
Authentication
--------------
* auth methods
* realm
* passwd chat timeout
Protocol Options
----------------
* client lanman auth
* client NTLMv2 auth
* client schannel
* client signing
* client use spnego
* disable netbios
* ntlm auth
* paranoid server security
* server schannel
* server signing
* smb ports
* use spnego
File Service
------------
* get quota command
* hide special files
* hide unwriteable files
* hostname lookups
* kernel change notify
* mangle prefix
* map acl inherit
* msdfs proxy
* set quota command
* use sendfile
* vfs objects
Printing
--------
* max reported print jobs
UNICODE and Character Sets
--------------------------
* display charset
* dos charset
* unicode
* unix charset
SID to uid/gid Mappings
-----------------------
* idmap backend
* idmap gid
* idmap uid
* winbind enable local accounts
* winbind trusted domains only
* template primary group
* enable rid algorithm
LDAP
----
* ldap delete dn
* ldap group suffix
* ldap idmap suffix
* ldap machine suffix
* ldap passwd sync
* ldap user suffix
General Configuration
---------------------
* preload modules
* private dir
Modified Parameters (changes in behavior):
* encrypt passwords (enabled by default)
* mangling method (set to 'hash2' by default)
* passwd chat
* passwd program
* restrict anonymous (integer value)
* security (new 'ads' value)
* strict locking (enabled by default)
* unix extensions (enabled by default)
* winbind cache time (increased to 5 minutes)
* winbind uid (deprecated in favor of 'idmap uid')
* winbind gid (deprecated in favor of 'idmap gid')
Databases
---------
This section contains brief descriptions of any new databases
introduced in Samba 3.0. Please remember to backup your existing
${lock directory}/*tdb before upgrading to Samba 3.0. Samba will
upgrade databases as they are opened (if necessary), but downgrading
from 3.0 to 2.2 is an unsupported path.
Name Description Backup?
---- ----------- -------
account_policy User policy settings yes
gencache Generic caching db no
group_mapping Mapping table from Windows yes
groups/SID to unix groups
winbindd_idmap ID map table from SIDS to UNIX yes
uids/gids.
namecache Name resolution cache entries no
netsamlogon_cache Cache of NET_USER_INFO_3 structure no
returned as part of a successful
net_sam_logon request
printing/*.tdb Cached output from 'lpq no
command' created on a per print
service basis
registry Read-only samba registry skeleton no
that provides support for exporting
various db tables via the winreg RPCs
Changes in Behavior
-------------------
The following issues are known changes in behavior between Samba 2.2 and
Samba 3.0 that may affect certain installations of Samba.
1) When operating as a member of a Windows domain, Samba 2.2 would
map any users authenticated by the remote DC to the 'guest account'
if a uid could not be obtained via the getpwnam() call. Samba 3.0
rejects the connection as NT_STATUS_LOGON_FAILURE. There is no
current work around to re-establish the 2.2 behavior.
2) When adding machines to a Samba 2.2 controlled domain, the
'add user script' was used to create the UNIX identity of the
machine trust account. Samba 3.0 introduces a new 'add machine
script' that must be specified for this purpose. Samba 3.0 will
not fall back to using the 'add user script' in the absence of
an 'add machine script'
######################################################################
Passdb Backends and Authentication
##################################
There have been a few new changes that Samba administrators should be
aware of when moving to Samba 3.0.
1) encrypted passwords have been enabled by default in order to
inter-operate better with out-of-the-box Windows client
installations. This does mean that either (a) a samba account
must be created for each user, or (b) 'encrypt passwords = no'
must be explicitly defined in smb.conf.
2) Inclusion of new 'security = ads' option for integration
with an Active Directory domain using the native Windows
Kerberos 5 and LDAP protocols.
MIT kerberos 1.3.1 supports the ARCFOUR-HMAC-MD5 encryption
type which is neccessary for servers on which the
administrator password has not been changed, or kerberos-enabled
SMB connections to servers that require Kerberos SMB signing.
Besides this one difference, either MIT or Heimdal Kerberos
distributions are usable by Samba 3.0.
Samba 3.0 also includes the possibility of setting up chains
of authentication methods (auth methods) and account storage
backends (passdb backend). Please refer to the smb.conf(5)
man page for details. While both parameters assume sane default
values, it is likely that you will need to understand what the
values actually mean in order to ensure Samba operates correctly.
The recommended passdb backends at this time are
* smbpasswd - 2.2 compatible flat file format
* tdbsam - attribute rich database intended as an smbpasswd
replacement for stand alone servers
* ldapsam - attribute rich account storage and retrieval
backend utilizing an LDAP directory.
* ldapsam_compat - a 2.2 backward compatible LDAP account
backend
Certain functions of the smbpasswd(8) tool have been split between the
new smbpasswd(8) utility, the net(8) tool, and the new pdbedit(8)
utility. See the respective man pages for details.
######################################################################
LDAP
####
This section outlines the new features affecting Samba / LDAP
integration.
New Schema
----------
A new object class (sambaSamAccount) has been introduced to replace
the old sambaAccount. This change aids us in the renaming of attributes
to prevent clashes with attributes from other vendors. There is a
conversion script (examples/LDAP/convertSambaAccount) to modify and LDIF
file to the new schema.
Example:
$ ldapsearch .... -b "ou=people,dc=..." > old.ldif
$ convertSambaAccount <DOM SID> old.ldif new.ldif
The <DOM SID> can be obtained by running 'net getlocalsid <DOMAINNAME>'
on the Samba PDC as root.
The old sambaAccount schema may still be used by specifying the
"ldapsam_compat" passdb backend. However, the sambaAccount and
associated attributes have been moved to the historical section of
the schema file and must be uncommented before use if needed.
The 2.2 object class declaration for a sambaAccount has not changed
in the 3.0 samba.schema file.
Other new object classes and their uses include:
* sambaDomain - domain information used to allocate rids
for users and groups as necessary. The attributes are added
in 'ldap suffix' directory entry automatically if
an idmap uid/gid range has been set and the 'ldapsam'
passdb backend has been selected.
* sambaGroupMapping - an object representing the
relationship between a posixGroup and a Windows
group/SID. These entries are stored in the 'ldap
group suffix' and managed by the 'net groupmap' command.
* sambaUnixIdPool - created in the 'ldap idmap suffix' entry
automatically and contains the next available 'idmap uid' and
'idmap gid'
* sambaIdmapEntry - object storing a mapping between a
SID and a UNIX uid/gid. These objects are created by the
idmap_ldap module as needed.
* sambaSidEntry - object representing a SID alone, as a Structural
class on which to build the sambaIdmapEntry.
New Suffix for Searching
------------------------
The following new smb.conf parameters have been added to aid in directing
certain LDAP queries when 'passdb backend = ldapsam://...' has been
specified.
* ldap suffix - used to search for user and computer accounts
* ldap user suffix - used to store user accounts
* ldap machine suffix - used to store machine trust accounts
* ldap group suffix - location of posixGroup/sambaGroupMapping entries
* ldap idmap suffix - location of sambaIdmapEntry objects
If an 'ldap suffix' is defined, it will be appended to all of the
remaining sub-suffix parameters. In this case, the order of the suffix
listings in smb.conf is important. Always place the 'ldap suffix' first
in the list.
Due to a limitation in Samba's smb.conf parsing, you should not surround
the DN's with quotation marks.
IdMap LDAP support
------------------
Samba 3.0 supports an ldap backend for the idmap subsystem. The
following options would inform Samba that the idmap table should be
stored on the directory server onterose in the "ou=idmap,dc=plainjoe,
dc=org" partition.
[global]
...
idmap backend = ldap:ldap://onterose/
ldap idmap suffix = ou=idmap,dc=plainjoe,dc=org
idmap uid = 40000-50000
idmap gid = 40000-50000
This configuration allows winbind installations on multiple servers to
share a uid/gid number space, thus avoiding the interoperability problems
with NFS that were present in Samba 2.2.
######################################################################
Trust Relationships and a Samba Domain
######################################
Samba 3.0.0beta2 is able to utilize winbindd as the means of
allocating uids and gids to trusted users and groups. More
information regarding Samba's support for establishing trust
relationships can be found in the Samba-HOWTO-Collection included
in the docs/ directory of this release.
First create your Samba PDC and ensure that everything is
working correctly before moving on the trusts.
To establish Samba as the trusting domain (named SAMBA) from a Windows NT
4.0 domain named WINDOWS:
1) create the trust account for SAMBA in "User Manager for Domains"
2) connect the trust from the Samba domain using
'net rpc trustdom establish GLASS'
To create a trustlationship with SAMBA as the trusted domain:
1) create the initial trust account for GLASS using
'smbpasswd -a -i GLASS'. You may need to create a UNIX
account for GLASS$ prior to this step (depending on your
local configuration).
2) connect the trust from a WINDOWS DC using "User Manager
for Domains"
Now join winbindd on the Samba PDC to the SAMBA domain using
the normal steps for adding a Samba server to an NT4 domain:
(note that smbd & nmbd must be running at this point)
root# net rpc join -U root
Password: <enter root password from smbpasswd file here>
Start winbindd and test the join with 'wbinfo -t'.
Now test the trust relationship by connecting to the SAMBA DC
(e.g. POGO) as a user from the WINDOWS domain:
$ smbclient //pogo/netlogon -U Administrator -W WINDOWS
Password:
Now connect to the WINDOWS DC (e.g. CRYSTAL) as a Samba user:
$ smbclient //crystal/netlogon -U root -W WINDOWS
Password:
######################################################################
Changes in Winbind
##################
Beginning with Samba3.0.0beta3, winbindd has been given new account
manage functionality equivalent to the 'add user script' family of
smb.conf parameters. The idmap design has also been changed to
centralize control of foreign SID lookups and matching to UNIX
uids and gids.
Brief Description of Changes
----------------------------
1) The sid_to_uid() family of functions (smbd/uid.c) have been
reverted to the 2.2.x design. This means that when resolving a
SID to a UID or similar mapping:
a) First consult winbindd
b) perform a local lookup only if winbindd fails to
return a successful answer
There are some variations to this, but these two rules generally
apply.
2) All idmap lookups have been moved into winbindd. This means that
a server must run winbindd (and support NSS) in order to achieve
any mappings of SID to dynamically allocated UNIX ids. This was
a conscious design choice.
3) New functions have been added to winbindd to emulate the 'add user
script' family of smbd functions without requiring that external
scripts be defined. This functionality is controlled by the 'winbind
enable local accounts' smb.conf parameter (enabled by default).
However, this account management functionality is only supported
in a local tdb (winbindd_idmap.tdb). If these new UNIX accounts
must be shared among multiple Samba servers (such as a PDC and BDCs),
it will be necessary to define your own 'add user script', et. al.
programs that place the accounts/groups in some form of directory
such as NIS or LDAP. This requirement was deemed beyond the scope
of winbind's account management functions. Solutions for
distributing UNIX system information have been deployed and tested
for many years. We saw no need to reinvent the wheel.
4) A member of a Samba controlled domain running winbindd is now able
to map domain users directly onto existing UNIX accounts while still
automatically creating accounts for trusted users and groups. This
behavior is controlled by the 'winbind trusted domains only' smb.conf
parameter (disabled by default to provide 2.2.x winbind behavior).
5) Group mapping support is wrapped in the local_XX_to_XX() functions
in smbd/uid.c. The reason that group mappings are not included
in winbindd is because the purpose of Samba's group map is to
match any Windows SID with an existing UNIX group. These UNIX
groups can be created by winbindd (see next section), but the
SID<->gid mapping is retreived by smbd, not winbindd.
Examples
--------
* security = server running winbindd to allocate accounts on demand
* Samba PDC running winbindd to handle the automatic creation of UNIX
identities for machine trust accounts
* Automtically creating UNIX user and groups when migrating a Windows NT
4.0 PDC to a Samba PDC. Winbindd must be running when executing
'net rpc vampire' for this to work.
######################################################################
Known Issues
############
* There are several bugs currently logged against the 3.0 codebase
that affect the use of NT 4.0 GUI domain management tools when run
against a Samba 3.0 PDC. This bugs should be released in an early
3.0.x release.
Please refer to https://bugzilla.samba.org/ for a current list of bugs
filed against the Samba 3.0 codebase.
######################################################################
Reporting bugs & Development Discussion
#######################################
Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.
If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.
A new bugzilla installation has been established to help support the
Samba 3.0 community of users. This server, located at
https://bugzilla.samba.org/, has replaced the older jitterbug server
previously located at http://bugs.samba.org/.
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