-What's new in Samba 4 alpha17
-=============================
-
-Samba 4.0 will be the next version of the Samba suite and incorporates
-all the technology found in both the Samba4 alpha series and the
-stable 3.x series. The primary additional features over Samba 3.6 are
-support for the Active Directory logon protocols used by Windows 2000
-and above.
-
-WARNINGS
-========
-
-Samba4 alpha17 is not a final Samba release, however we are now making
-good progress towards a Samba 4.0 release, of which this is a preview.
-Be aware the this release contains both the technology of Samba 3.6
-(that you can reasonably expect to upgrade existing Samba 3.x releases
-to) and the AD domain controller work previously known as 'samba4'.
-
-While binaries for the stable file server are provided in this
-release, for a stable, supported file server, Samba3 domain or AD
-domain member installation, please run a Samba 3.x release, as we are
-still bedding down the new single build system.
-
-Samba4 is subjected to an awesome battery of tests on an automated
-basis, we have found Samba 4.0 to be very stable in it's behavior.
-However, we still recommend against upgrading production servers from
-Samba 3.x release to Samba 4.0 alpha at this stage.
-
-If you are upgrading, or looking to develop, test or deploy Samba 4.0
-alpha releases, you should backup all configuration and data.
-
-NEW FEATURES
-============
+Release Announcements
+=====================
-Samba 4.0 alpha supports the server-side of the Active Directory logon
-environment used by Windows 2000 and later, so we can do full domain
-join and domain logon operations with these clients.
+This is the first release candidate of Samba 4.4. This is *not*
+intended for production environments and is designed for testing
+purposes only. Please report any defects via the Samba bug reporting
+system at https://bugzilla.samba.org/.
-Our Domain Controller (DC) implementation includes our own built-in
-LDAP server and Kerberos Key Distribution Center (KDC) as well as the
-Samba3-like logon services provided over CIFS. We correctly generate
-the infamous Kerberos PAC, and include it with the Kerberos tickets we
-issue.
+Samba 4.4 will be the next version of the Samba suite.
-Samba 4.0 alpha ships with two distinct file servers. The file server
-from the Samba 3.x series is 'smbd', and works with the binaries users
-would expect from that series (nmbd, winbindd, smbpasswd).
-Samba 4.0 also ships with a new file server, which is tuned to match
-the requirements of an AD domain controller. Users should not use the
-file server in the 'samba' binary for non-DC related tasks.
+UPGRADING
+=========
-A new scripting interface has been added to Samba 4, allowing Python
-programs to interface to Samba's internals, and many tools and
-internal workings of the DC code is now implemented in python.
+Nothing special.
-CHANGES SINCE alpha16
-=====================
+NEW FEATURES/CHANGES
+====================
-For a list of changes since alpha 15, please see the git log.
+Asynchronous flush requests
+---------------------------
-$ git clone git://git.samba.org/samba.git
-$ cd samba.git
-$ git log release-4-0-0alpha16..release-4-0-0alpha17
+Flush requests from SMB2/3 clients are handled asynchronously and do
+not block the processing of other requests. Note that 'strict sync'
+has to be set to 'yes' for Samba to honor flush requests from SMB
+clients.
-Some major user-visible changes include:
+s3: smbd
+--------
-samba-tool dbcheck
-------------------
+Remove '--with-aio-support' configure option. We no longer would ever prefer
+POSIX-RT aio, use pthread_aio instead.
-We now have an fsck-like tool for Samba's internal sam.ldb database.
-Run samba-tool dbcheck after installation to check your database for
-self-consistency. Any database created with a previous Samba4 alpha
-will have a very large number of consistency errors, which this tool
-can fix.
+samba-tool sites
+----------------
-See also the -H option to point dbcheck at a different database to the
-default, and the --fix and --yes options to make changes and to not
-prompt about those changes.
+The 'samba-tool sites' subcommand can now be run against another server by
+specifying an LDB URL using the '-H' option and not against the local database
+only (which is still the default when no URL is given).
-After upgrading Samba, it is suggested that you do the following:
+samba-tool domain demote
+------------------------
- - stop samba
- - take a backup copy of your sam.ldb and sam.ldb.d/* database files
- - run samba-tool dbcheck --cross-ncs --fix
- - use 'all' to say yes to fixing each type of error found
- - after it has finished, run dbcheck again to ensure it reports no
- errors
+Add '--remove-other-dead-server' option to 'samba-tool domain demote'
+subcommand. The new version of this tool now can remove another DC that is
+itself offline. The '--remove-other-dead-server' removes as many references
+to the DC as possible.
-There will be a lot of errors fixed, particularly related to
-bad/missing GUID values. This is due to a bug in previous releases
-that left many objects with bad GUID values. These can all be fixed
-using dbcheck with steps above.
+samba-tool drs clone-dc-database
+--------------------------------
+Replicate an initial clone of domain, but do not join it.
+This is developed for debugging purposes, but not for setting up another DC.
-New default paths
------------------
+pdbedit
+-------
-The configure options for paths have changed again, and the
---enable-fhs option has been reinstated. Packagers should attempt to
-first package Samba using:
+Add '--set-nt-hash' option to pdbedit to update user password from nt-hash
+hexstring. 'pdbedit -vw' shows also password hashes.
-./configure --enable-fhs --prefix=/usr --sysconfdir=/etc --localstatedir=/var
+smbstatus
+---------
-and only after examining the location Samba uses with these options
-should further changes be made. Existing packaging scripts are not
-expected to work unmodified, instead the Samba Team's aim is to
-simplify such scripts for the long term.
+'smbstatus' was enhanced to show the state of signing and encryption for
+sessions and shares.
-samba-tool domain samba3upgrade
--------------------------------
+smbget
+------
+The -u and -p options for user and password were replaced by the -U option that
+accepts username[%password] as in many other tools of the Samba suite.
+Similary, smbgetrc files do not accept username and password options any more,
+only a single "user" option which also accepts user%password combinations.
+The -P option was removed.
-The new samba-tool domain samba3upgrade command is a supported upgrade route from Samba
-3.x domain controllers to Samba 4.0 AD domain controllers. This
-provides a one-time migration of all users, domain members, passwords,
-groups, group members and account polcies.
+s4-rpc_server
+-------------
-This tool is still under development and may fail when presented with
-an inconsistant Samba3 database (such as many LDAP configurations).
-We hope to improve the error handling and recovery in these
-situations, so please provide feedback using the samba-technical
-mailing list.
+Add a GnuTLS based backupkey implementation.
-KNOWN ISSUES
-============
+ntlm_auth
+---------
+
+Using the '--offline-logon' enables ntlm_auth to use cached passwords when the
+DC is offline.
+
+Allow '--password' force a local password check for ntlm-server-1 mode.
+
+vfs_offline
+-----------
+
+A new VFS module called vfs_offline has been added to mark all files in the
+share as offline. It can be useful for shares mounted on top of a remote file
+system (either through a samba VFS module or via FUSE).
+
+KCC
+---
+
+The Samba KCC has been improved, but is still disabled by default.
+
+DNS
+---
+
+There were several improvements concerning the Samba DNS server.
+
+Active Directory
+----------------
+
+There were some improvements in the Active Directory area.
+
+WINS nsswitch module
+--------------------
+
+The WINS nsswitch module has been rewritten to address memory issues and to
+simplify the code. The module now uses libwbclient to do WINS queries. This
+means that winbind needs to be running in order to resolve WINS names using
+the nss_wins module. This does not affect smbd.
+
+CTDB changes
+------------
+
+* CTDB now uses a newly implemented parallel database recovery scheme
+ that avoids deadlocks with smbd.
+
+ In certain circumstances CTDB and smbd could deadlock. The new
+ recovery implementation avoid this. It also provides improved
+ recovery performance.
+
+* All files are now installed into and referred to by the paths
+ configured at build time. Therefore, CTDB will now work properly
+ when installed into the default location at /usr/local.
-- Installation on systems without a system iconv (and developer
- headers at compile time) is known to cause errors when dealing with
- non-ASCII characters.
+* Public CTDB header files are no longer installed, since Samba and
+ CTDB are built from within the same source tree.
-- In some situations, group members may not be upgraded by the
- samba-tool domain upgrade_from_s3 script
+* CTDB_DBDIR can now be set to tmpfs[:<tmpfs-options>]
-- The samba-tool domain join script will not join Windows 2000 domains.
+ This will cause volatile TDBs to be located in a tmpfs. This can
+ help to avoid performance problems associated with contention on the
+ disk where volatile TDBs are usually stored. See ctdbd.conf(5) for
+ more details.
-- Domain member support in the 'samba' binary is in it's infancy, and
- is not comparable to the support found in winbindd. As such, do not
- use the 'samba' binary (provided for the AD server) on a member
- server.
+* Configuration variable CTDB_NATGW_SLAVE_ONLY is no longer used.
+ Instead, nodes should be annotated with the "slave-only" option in
+ the CTDB NAT gateway nodes file. This file must be consistent
+ across nodes in a NAT gateway group. See ctdbd.conf(5) for more
+ details.
-- There is no printing support in the 'samba' binary (use smbd instead)
+* New event script 05.system allows various system resources to be
+ monitored
-- There is no NetBIOS browsing support (network neighbourhood) in the
- 'samba' binary (use nmbd and smbd instead)
+ This can be helpful for explaining poor performance or unexpected
+ behaviour. New configuration variables are
+ CTDB_MONITOR_FILESYSTEM_USAGE, CTDB_MONITOR_MEMORY_USAGE and
+ CTDB_MONITOR_SWAP_USAGE. Default values cause warnings to be
+ logged. See the SYSTEM RESOURCE MONITORING CONFIGURATION in
+ ctdbd.conf(5) for more information.
-- Clock Synchronisation is critical. Many 'wrong password' errors are
- actually due to Kerberos objecting to a clock skew between client
- and server. (The NTP work in the previous alphas are partly to assist
- with this problem).
+ The memory, swap and filesystem usage monitoring previously found in
+ 00.ctdb and 40.fs_use is no longer available. Therefore,
+ configuration variables CTDB_CHECK_FS_USE, CTDB_MONITOR_FREE_MEMORY,
+ CTDB_MONITOR_FREE_MEMORY_WARN and CTDB_CHECK_SWAP_IS_NOT_USED are
+ now ignored.
-- The DRS replication code may fail. Please contact the team if you
- experience issues with DRS replication, as we have fixed many issues
- here in response to feedback from our production users.
+* The 62.cnfs eventscript has been removed. To get a similar effect
+ just do something like this:
-RUNNING Samba 4.0 as an AD DC
-=============================
+ mmaddcallback ctdb-disable-on-quorumLoss \
+ --command /usr/bin/ctdb \
+ --event quorumLoss --parms "disable"
-A short guide to setting up Samba 4 as an AD DC can be found on the wiki:
+ mmaddcallback ctdb-enable-on-quorumReached \
+ --command /usr/bin/ctdb \
+ --event quorumReached --parms "enable"
+
+* The CTDB tunable parameter EventScriptTimeoutCount has been renamed
+ to MonitorTimeoutCount
+
+ It has only ever been used to limit timed-out monitor events.
+
+ Configurations containing CTDB_SET_EventScriptTimeoutCount=<n> will
+ cause CTDB to fail at startup. Useful messages will be logged.
+
+* The commandline option "-n all" to CTDB tool has been removed.
+
+ The option was not uniformly implemented for all the commands.
+ Instead of command "ctdb ip -n all", use "ctdb ip all".
+
+* All CTDB current manual pages are now correctly installed
+
+
+REMOVED FEATURES
+================
+
+Public headers
+--------------
+
+Several public headers are not installed any longer. They are made for internal
+use only. More public headers will very likely be removed in future releases.
+
+The following headers are not installed any longer:
+dlinklist.h, gen_ndr/epmapper.h, gen_ndr/mgmt.h, gen_ndr/ndr_atsvc_c.h,
+gen_ndr/ndr_epmapper_c.h, gen_ndr/ndr_epmapper.h, gen_ndr/ndr_mgmt_c.h,
+gen_ndr/ndr_mgmt.h,gensec.h, ldap_errors.h, ldap_message.h, ldap_ndr.h,
+ldap-util.h, pytalloc.h, read_smb.h, registry.h, roles.h, samba_util.h,
+smb2_constants.h, smb2_create_blob.h, smb2.h, smb2_lease.h, smb2_signing.h,
+smb_cli.h, smb_cliraw.h, smb_common.h, smb_composite.h, smb_constants.h,
+smb_raw.h, smb_raw_interfaces.h, smb_raw_signing.h, smb_raw_trans2.h,
+smb_request.h, smb_seal.h, smb_signing.h, smb_unix_ext.h, smb_util.h,
+torture.h, tstream_smbXcli_np.h.
+
+vfs_smb_traffic_analyzer
+------------------------
+
+The SMB traffic analyzer VFS module has been removed, because it is not
+maintained any longer and not widely used.
+
+vfs_scannedonly
+---------------
+
+The scannedonly VFS module has been removed, because it is not maintained
+any longer.
+
+smb.conf changes
+----------------
+
+ Parameter Name Description Default
+ -------------- ----------- -------
+ aio max threads New 100
+ ldap page size Changed default 1000
+
+
+KNOWN ISSUES
+============
- http://wiki.samba.org/index.php/Samba4/HOWTO
+Currently none.
#######################################
Reporting bugs & Development Discussion
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. All bug reports should
-be filed under the Samba 4.0 product in the project's Bugzilla
+be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).
git.samba.org / samba.git / blobdiff