Release Announcements
=====================
-This is the first preview release of Samba 4.6. 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 4.6 will be the next version of the Samba suite.
+Samba 4.10 will be the next version of the Samba suite.
UPGRADING
=========
-vfs_fruit option "fruit:resource" spelling correction
------------------------------------------------------
-Due to a spelling error in the vfs_fruit option parsing for the "fruit:resource"
-option, users who have set this option in their smb.conf were still using the
-default setting "fruit:resource = file" as the parser was looking for the string
-"fruit:ressource" (two "s").
+NEW FEATURES/CHANGES
+====================
-After upgrading to this Samba version 4.6, you MUST either remove the option
-from your smb.conf or set it to the default "fruit:resource = file", otherwise
-your macOS clients will not be able to access the resource fork data.
+GPO Improvements
+----------------
-This version Samba 4.6 accepts both the correct and incorrect spelling, but the
-next Samba version 4.7 will not accept the wrong spelling.
+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.
-Users who were using the wrong spelling "ressource" with two "s" can keep the
-setting, but are advised to switch to the correct spelling.
+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).
-ID Mapping
-----------
-We discovered that the majority of users have an invalid or incorrect
-ID mapping configuration. We implemented checks in the 'testparm' tool to
-validate the ID mapping configuration. You should run it and check if it prints
-any warnings or errors after upgrading! If it does you should fix them. See the
-'IDENTITY MAPPING CONSIDERATIONS' section in the smb.conf manpage.
-There are some ID mapping backends which are not allowed to be used for the
-default backend. Winbind will no longer start if an invalid backend is
-configured as the default backend.
+kdc prefork
+-----------
-To avoid problems in future we advise all users to run 'testparm' after
-changing the smb.conf file!
+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.
+prefork 'prefork children'
+--------------------------
-NEW FEATURES/CHANGES
-====================
+The default value for this smdb.conf parameter has been increased from 1 to
+4.
-Kerberos client encryption types
---------------------------------
-Some parts of Samba (most notably winbindd) perform Kerberos client
-operations based on a Samba-generated krb5.conf file. A new
-parameter, "kerberos encryption types" allows configuring the
-encryption types set in this file, thereby allowing the user to
-enforce strong or legacy encryption in Kerberos exchanges.
-
-The default value of "all" is compatible with previous behavior, allowing
-all encryption algorithms to be negotiated. Setting the parameter to "strong"
-only allows AES-based algorithms to be negotiated. Setting the parameter to
-"legacy" allows only RC4-HMAC-MD5 - the legacy algorithm for Active Directory.
-This can solves some corner cases of mixed environments with Server 2003R2 and
-newer DCs.
-
-Printing
---------
-Support for uploading printer drivers from newer Windows clients (Windows 10)
-has been added until our implementation of [MS-PAR] protocol is ready.
-Several issues with uploading different printing drivers have been addressed.
-
-The OS Version for the printing server has been increased to announce
-Windows Server 2003 R2 SP2. If a driver needs a newer version then you should
-check the smb.conf manpage for details.
-
-new option for owner inheritance
---------------------------------
-The "inherit owner" smb.conf parameter instructs smbd to set the
-owner of files to be the same as the parent directory's owner.
-Up until now, this parameter could be set to "yes" or "no".
-A new option, "unix only", enables this feature only for the UNIX owner
-of the file, not affecting the SID owner in the Windows NT ACL of the
-file. This can be used to emulate something very similar to folder quotas.
-
-Multi-process Netlogon support
-------------------------------
-
-The Netlogon server in the Samba AD DC can now run as multiple
-processes. The Netlogon server is a part of the AD DC that handles
-NTLM authentication on behalf of domain members, including file
-servers, NTLM-authenticated web servers and 802.1x gateways. The
-previous restriction to running as a single process has been removed,
-and it will now run in the same process model as the rest of the
-'samba' binary.
-
-As part of this change, the NETLOGON service will now run on a distinct
-TCP port, rather than being shared with all other RPC services (LSA,
-SAMR, DRSUAPI etc).
-
-new options for controlling TCP ports used for RPC services
------------------------------------------------------------
-
-The new 'rpc server port' option controls the default port used for
-RPC services other than Netlogon. The Netlogon server honors instead
-the 'rpc server port:netlogon' option. The default value for both
-these options is the first available port including or after 1024.
-
-Improve AD performance and replication improvements
----------------------------------------------------
-
-Samba's LDB and replication code continues to improve, particularly in
-respect to the handling of large numbers of linked attributes. We now
-respect an 'uptodateness vector' which will dramatically reduce the
-over-replication of links from new DCs. We have also made the parsing
-of on-disk linked attributes much more efficient.
-
-DNS improvements
+netlogon prefork
----------------
-The samba-tool dns subcommand is now much more robust and can delete
-records in a number of situations where it was not possible to do so
-in the past.
+DCERPC now supports pre-forked NETLOGON processes. The netlogon processes are
+pre-forked when the prefork process model is selected for samba.
-On the server side, DNS names are now more strictly validated.
+Offline domain backups
+----------------------
-CTDB 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.
-* "ctdb event" is a new top-level command for interacting with event scripts
+Group membership statistics
+---------------------------
- "ctdb event status" replaces "ctdb scriptstatus" - the latter is
- maintained for backward compatibility but the output format has been
- cleaned up
+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.
- "ctdb event run" replaces "ctdb eventscript"
+prefork process restart
+-----------------------
- "ctdb event script enable" replaces "ctdb enablescript"
+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".
- "ctdb event script disable" replaces "ctdb disablescript"
+Using the default sequence the restart delays (in seconds) are:
+ 0, 10, 20, ..., 120, 120, ...
- The new command "ctdb event script list" lists event scripts.
+standard process model
+----------------------
-* CTDB's back-end for running event scripts has been replaced by a
- separate, long-running daemon ctdbd_eventd.
+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.
-* Running ctdb interactively will log to stderr
+python3 support
+---------------
-* CTDB logs now include process id for each process
+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.
-* CTDB tags log messages differently. Changes include:
+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.
- ctdb-recoverd: Messages from CTDB's recovery daemon
- ctdb-recovery: Messages from CTDB database recovery
- ctdb-eventd: Messages from CTDB's event daemon
- ctdb-takeover: Messgaes from CTDB's public IP takeover subsystem
+ 'PYTHON=python2 ./configure.developer'
+&
+ 'PYTHON=python2 make'
-* The mapping between symbolic and numeric debug levels has changed
+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.
- Configurations containing numeric debug levels should be updated.
- Symbolic debug levels are recommended. See the DEBUG LEVEL section
- of ctdb(7) for details.
+JSON logging
+------------
-* Tunable IPAllocAlgorithm replaces LCP2PublicIPs, DeterministicIPs
+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
- See ctdb-tunables(7) for details
+ Logon Types:
+ 2 Interactive
+ 3 Network
+ 8 NetworkCleartext
-* CTDB's configuration tunables should be consistently set across a cluster
+The version number for Authentication messages is now 1.1, changed from 1.0
- This has always been the cases for most tunables but this fact is
- now documented.
+Password change messages now contain the Windows Event Id "eventId", the
+supported event Id's are:
+ 4723 Password changed
+ 4724 Password reset
-* CTDB ships with recovery lock helper call-outs for etcd and Ceph RADOS
+The version number for PasswordChange messages is now 1.1, changed from 1.0
- To build/install these, use the --enable-etcd-reclock and
- --enable-ceph-reclock configure options.
+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
-smb.conf changes
+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. " {"
+
+
+
+
+REMOVED FEATURES
================
- Parameter Name Description Default
- -------------- ----------- -------
- kerberos encryption types New all
- inherit owner New option
- fruit:resource Spelling correction
- lsa over netlogon New (deprecated) no
- rpc server port New 0
+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
+ -------------- ----------- -------
+ 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 / samba.git / blobdiff