Release Announcements
=====================
-This is the first release candidate of Samba 4.4. This is *not*
+This is the first preview release of Samba 4.5. 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/.
-Samba 4.4 will be the next version of the Samba suite.
+Samba 4.5 will be the next version of the Samba suite.
UPGRADING
NEW FEATURES/CHANGES
====================
-Asynchronous flush requests
----------------------------
+Support for LDAP_SERVER_NOTIFICATION_OID
+----------------------------------------
-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.
+The ldap server has support for the LDAP_SERVER_NOTIFICATION_OID
+control. This can be used to monitor the active directory database
+for changes.
-s3: smbd
---------
+VLV - Virtual List View
+-----------------------
-Remove '--with-aio-support' configure option. We no longer would ever prefer
-POSIX-RT aio, use pthread_aio instead.
+The VLV Control allows applications to page the LDAP directory in the
+way you might expect a live phone book application to operate, without
+first downloading the entire directory.
-samba-tool sites
-----------------
-
-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).
-
-samba-tool domain demote
-------------------------
-
-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.
-
-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.
-
-pdbedit
--------
-
-Add '--set-nt-hash' option to pdbedit to update user password from nt-hash
-hexstring. 'pdbedit -vw' shows also password hashes.
-
-smbstatus
----------
-
-'smbstatus' was enhanced to show the state of signing and encryption for
-sessions and shares.
-
-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.
-
-s4-rpc_server
--------------
-
-Add a GnuTLS based backupkey implementation.
-
-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.
+DRS Replication for the AD DC
+-----------------------------
-vfs_offline
------------
+DRS Replication in Samba 4.5 is now much more efficient in handling
+linked attributes, particularly in large domains with over 1000 group
+memberships or other links.
-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).
+Replication is also much more reliable in the handling of tree
+renames, such as the rename of an organizational unit containing many
+users. Extensive tests have been added to ensure this code remains
+reliable, particularly in the case of conflicts between objects added
+with the same name on different servers.
-KCC
----
+Schema updates are also handled much more reliably.
-The Samba KCC has been improved, but is still disabled by default.
+replPropertyMetaData Changes
+----------------------------
-DNS
----
+During the development of the DRS replication, tests showed that Samba
+stores the replPropertyMetaData object incorrectly. To address this,
+be aware that dbcheck will now detect and offer to fix all objects in
+the domain for this error.
-There were several improvements concerning the Samba DNS server.
+Linked attributes on deleted objects
+------------------------------------
-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.
+In Active Directory, an object that has been tombstoned or recycled
+has no linked attributes. However, Samba incorrectly maintained such
+links, slowing replication and run-time performance. dbcheck now
+offers to remove such links, and they are no longer kept after the
+object is tombstoned or recycled.
-* Public CTDB header files are no longer installed, since Samba and
- CTDB are built from within the same source tree.
+Improved AD DC performance
+--------------------------
-* CTDB_DBDIR can now be set to tmpfs[:<tmpfs-options>]
+Many other improvements have been made to our LDAP database layer in
+the AD DC, to improve performance, both during samba-tool domain
+provision and at runtime.
- 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.
+Other dbcheck improvements
+--------------------------
-* 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.
+ - samba-tool dbcheck can now find and fix a missing or corrupted
+ 'deleted objects' container.
+ - BUG 11433: samba-dbcheck no longer offers to resort auxiliary class values
+ in objectClass as these were then re-sorted at the next dbcheck indefinitely.
-* New event script 05.system allows various system resources to be
- monitored
+Tombstone Reanimation
+---------------------
- 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.
+Samba now supports tombstone reanimation, a feature in the AD DC
+allowing tombstones, that is objects which have been deleted, to be
+restored with the original SID and GUID still in place.
- 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.
+Multiple DNS Forwarders on the AD DC
+------------------------------------
-* The 62.cnfs eventscript has been removed. To get a similar effect
- just do something like this:
+Multiple DNS forwarders are now supported on the AD DC, allowing
+samba to fall back between two different DNS servers for forwarded queries.
- mmaddcallback ctdb-disable-on-quorumLoss \
- --command /usr/bin/ctdb \
- --event quorumLoss --parms "disable"
+Password quality plugin support in the AD DC
+--------------------------------------------
- mmaddcallback ctdb-enable-on-quorumReached \
- --command /usr/bin/ctdb \
- --event quorumReached --parms "enable"
+The check password script now operates correctly in the AD DC (this
+was silently ignored in past releases)
-* The CTDB tunable parameter EventScriptTimeoutCount has been renamed
- to MonitorTimeoutCount
+pwdLastSet is now correctly honoured
+------------------------------------
- It has only ever been used to limit timed-out monitor events.
+BUG 9654: the pwdLastSet attribute is now correctly handled (this previously
+permitted passwords that next expire).
- Configurations containing CTDB_SET_EventScriptTimeoutCount=<n> will
- cause CTDB to fail at startup. Useful messages will be logged.
+net ads dns unregister
+----------------------
-* The commandline option "-n all" to CTDB tool has been removed.
+It is now possible to remove the DNS entries created with 'net ads register'
+with the matching 'net ads unregister' command.
- 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.
+only user and username parameters
+---------------------------------
+These two parameters have long been deprecated and superseded by
+"valid users" and "invalid users".
smb.conf changes
----------------
Parameter Name Description Default
-------------- ----------- -------
- aio max threads New 100
- ldap page size Changed default 1000
-
+ only user Removed
+ username Removed
KNOWN ISSUES
============
git.samba.org / ambi / samba-autobuild / .git / blobdiff