Release Announcements
=====================
-This is the first preview release of Samba 4.5. This is *not*
+This is the first preview release of Samba 4.10. 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 4.5 will be the next version of the Samba suite.
+Samba 4.10 will be the next version of the Samba suite.
UPGRADING
=========
-Nothing special.
-
NEW FEATURES/CHANGES
====================
-Support for LDAP_SERVER_NOTIFICATION_OID
-----------------------------------------
+GPO Improvements
+----------------
-The ldap server has support for the LDAP_SERVER_NOTIFICATION_OID
-control. This can be used to monitor the active directory database
-for changes.
+A new 'samba-tool gpo export' command has been added that can export a
+set of Group Policy Objects from a domain in a generalised XML format.
-KCC improvements for sparse network replication
------------------------------------------------
+A corresponding 'samba-tool gpo restore' command has been added to
+rebuild the Group Policy Objects from the XML after generalization.
+(The administrator needs to correct the values of XML entities between
+the backup and restore to account for the change in domain).
-The Samba KCC will now be the default knowledge consistency checker in
-Samba AD. Instead of using full mesh replication between every DC, the
-KCC will set up connections to optimize replication latency and cost
-(using site links to calculate the routes). This change should allow
-larger domains to function significantly better in terms of replication
-traffic and the time spent performing DRS replication.
+kdc prefork
+-----------
-VLV - Virtual List View
------------------------
+The KDC now supports the pre-fork process model and worker processes will be
+forked for the KDC when the pre-fork process model is selected for samba.
-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.
+prefork 'prefork children'
+--------------------------
-DRS Replication for the AD DC
------------------------------
+The default value for this smdb.conf parameter has been increased from 1 to
+4.
-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.
+netlogon prefork
+----------------
-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.
+DCERPC now supports pre-forked NETLOGON processes. The netlogon processes are
+pre-forked when the prefork process model is selected for samba.
-Schema updates are also handled much more reliably.
+Offline domain backups
+----------------------
-replPropertyMetaData Changes
-----------------------------
+The 'samba-tool domain backup' command has been extended with a new 'offline'
+option. This safely creates a backup of the local DC's database directly from
+disk. The main benefits of an offline backup are it's quicker, it stores more
+database details (for forensic purposes), and the samba process does not have
+to be running when the backup is made. Refer to the samba-tool help for more
+details on using this command.
-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.
+Group membership statistics
+---------------------------
-Linked attributes on deleted objects
-------------------------------------
+A new 'samba-tool group stats' command has been added. This provides summary
+information about how the users are spread across groups in your domain.
+The 'samba-tool group list --verbose' command has also been updated to include
+the number of users in each group.
-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.
+prefork process restart
+-----------------------
-Improved AD DC performance
---------------------------
+The pre-fork process model now restarts failed processes. The delay between
+restart attempts is controlled by the "prefork backoff increment" (default = 10)
+and "prefork maximum backoff" (default = 120) smbd.conf parameters. A linear
+back off strategy is used with "prefork backoff increment" added to the
+delay between restart attempts up until it reaches "prefork maximum backoff".
-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.
+Using the default sequence the restart delays (in seconds) are:
+ 0, 10, 20, ..., 120, 120, ...
-Other dbcheck improvements
---------------------------
+standard process model
+----------------------
- - 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.
+When using the standard process model samba forks a new process to handle ldap
+and netlogon connections. Samba now honours the 'max smbd processes' smb.conf
+parameter. The default value of 0, indicates there is no limit. The limit
+is applied individually to netlogon and ldap. When the process limit is
+exceeded Samba drops new connections immediately.
-Tombstone Reanimation
----------------------
+python3 support
+---------------
-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 version of python which is now the default for samba is python3.
+'configure' & 'make' will execute using python3. It is possible to still
+specify an additional python version with '--extra-python'
+e.g. '--extra-python=/usr/bin/python2'. It should be noted that support for
+this option will be deprecated in a future release.
-Multiple DNS Forwarders on the AD DC
-------------------------------------
+What if I need to build with python2? To build with python2 you *must* set
+the 'PYTHON' environent variable to override the python3 default for both
+'configure' and 'make' steps.
-Multiple DNS forwarders are now supported on the AD DC, allowing
-samba to fall back between two different DNS servers for forwarded queries.
+ 'PYTHON=python2 ./configure.developer'
+&
+ 'PYTHON=python2 make'
-Password quality plugin support in the AD DC
---------------------------------------------
+Note: Support for python2 (with the exception of a build configured with
+ 'PYTHON=python2 ./configure --disable-python' and built with
+ 'PYTHON=python2 make' will be deprecated in the next release.
-The check password script now operates correctly in the AD DC (this
-was silently ignored in past releases)
+JSON logging
+------------
-pwdLastSet is now correctly honoured
-------------------------------------
+Authentication messages now contain the Windows Event Id "eventId" and logon
+type "logonType". The supported event codes and logon types are:
+ Event codes:
+ 4624 Successful logon
+ 4625 Unsuccessful logon
-BUG 9654: the pwdLastSet attribute is now correctly handled (this previously
-permitted passwords that next expire).
+ Logon Types:
+ 2 Interactive
+ 3 Network
+ 8 NetworkCleartext
-net ads dns unregister
-----------------------
+The version number for Authentication messages is now 1.1, changed from 1.0
-It is now possible to remove the DNS entries created with 'net ads register'
-with the matching 'net ads unregister' command.
+Password change messages now contain the Windows Event Id "eventId", the
+supported event Id's are:
+ 4723 Password changed
+ 4724 Password reset
-Samba-tool improvements
-------------------------
+The version number for PasswordChange messages is now 1.1, changed from 1.0
+
+Group membership change messages now contain the Windows Event Id "eventId",
+the supported event Id's are:
+ 4728 A member was added to a security enabled global group
+ 4729 A member was removed from a security enabled global group
+ 4732 A member was added to a security enabled local group
+ 4733 A member was removed from a security enabled local group
+ 4746 A member was added to a security disabled local group
+ 4747 A member was removed from a security disabled local group
+ 4751 A member was added to a security disabled global group
+ 4752 A member was removed from a security disabled global group
+ 4756 A member was added to a security enabled universal group
+ 4757 A member was removed from a security enabled universal group
+ 4761 A member was added to a security disabled universal group
+ 4762 A member was removed from a security disabled universal group
+
+
+The version number for GroupChange messages is now 1.1, changed from 1.0. Also
+A GroupChange message is generated when a new user is created to log that the
+user has been added to their primary group.
+
+The leading "JSON <message type>:" and source file prefix of the JSON formatted
+log entries has been removed to make the parsing of the JSON log messages
+easier. JSON log entries now start with 2 spaces followed by an opening brace
+i.e. " {"
-Running samba-tool on the command line should now be a lot snappier. The tool
-now only loads the code specific to the subcommand that you wish to run.
REMOVED FEATURES
================
-only user and username parameters
----------------------------------
-These two parameters have long been deprecated and superseded by
-"valid users" and "invalid users".
+MIT Kerberos build of the AD DC
+-------------------------------
+
+While not removed, the MIT Kerberos build of the Samba AD DC is still
+considered experimental. Because Samba will not issue security
+patches for this configuration, such builds now require the explicit
+configure option: --with-experimental-mit-ad-dc
+
+For further details see
+https://wiki.samba.org/index.php/Running_a_Samba_AD_DC_with_MIT_Kerberos_KDC
+
+samba_backup
+------------
+
+The samba_backup script has been removed. This has now been replaced by the
+'samba-tool domain backup offline' command.
smb.conf changes
-----------------
+================
- Parameter Name Description Default
- -------------- ----------- -------
- only user Removed
- username Removed
- kccsrv:samba_kcc Changed default true
+ Parameter Name Description Default
+ -------------- ----------- -------
+ prefork backoff increment Delay added to process restart 10 (seconds)
+ between attempts.
+ prefork maximum backoff Maximum delay for process between 120 (seconds)
+ process restart attempts
+ smbd search ask sharemode Name changed, old name was
+ "smbd:search ask sharemode"
+ smbd async dosmode Name changed, old name was
+ "smbd:async dosmode"
+ smbd max async dosmode Name changed, old name was
+ "smbd:max async dosmode"
+ smbd getinfo ask sharemode New: similar to "smbd search ask yes
+ sharemode" but for SMB getinfo
KNOWN ISSUES
============
-Currently none.
+https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.10#Release_blocking_bugs
+
#######################################
Reporting bugs & Development Discussion
git.samba.org / garming / samba-autobuild / .git / blobdiff