Release Announcements
=====================
-This is the first release candidate of Samba 4.2. This is *not*
+This is the first preview release of Samba 4.6. 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 4.2 will be the next version of the Samba suite.
+Samba 4.6 will be the next version of the Samba suite.
UPGRADING
=========
-Read the "Winbindd/Netlogon improvements" section (below) carefully!
+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").
+
+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.
+
+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.
+
+Users who were using the wrong spelling "ressource" with two "s" can keep the
+setting, but are advised to switch to the correct spelling.
+
+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.
+To avoid problems in future we advise all users to run 'testparm' after
+changing the smb.conf file!
-NEW FEATURES
-============
+NEW FEATURES/CHANGES
+====================
+
+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 honours 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
+---------------------------
+
+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.
+
+On the server side, DNS names are now more strictly validated.
+
+
+CTDB changes
+------------
+
+* "ctdb event" is a new top-level command for interacting with event scripts
+
+ "ctdb event status" replaces "ctdb scriptstatus" - the latter is
+ maintained for backward compatibility but the output format has been
+ cleaned up
+
+ "ctdb event run" replaces "ctdb eventscript"
+
+ "ctdb event script enable" replaces "ctdb enablescript"
+
+ "ctdb event script disable" replaces "ctdb disablescript"
+
+ The new command "ctdb event script list" lists event scripts.
+
+* CTDB's back-end for running event scripts has been replaced by a
+ separate, long-running daemon ctdbd_eventd.
-Transparent File Compression
-============================
+* Running ctdb interactively will log to stderr
-Samba 4.2.0 adds support for the manipulation of file and folder
-compression flags on the Btrfs filesystem.
-With the Btrfs Samba VFS module enabled, SMB2+ compression flags can
-be set remotely from the Windows Explorer File->Properties->Advanced
-dialog. Files flagged for compression are transparently compressed
-and uncompressed when accessed or modified.
+* CTDB logs now include process id for each process
-Previous File Versions with Snapper
-===================================
+* CTDB tags log messages differently. Changes include:
-The newly added Snapper VFS module exposes snapshots managed by
-Snapper for use by Samba. This provides the ability for remote
-clients to access shadow-copies via Windows Explorer using the
-"previous versions" dialog.
+ 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
-Winbindd/Netlogon improvements
-==============================
+* The mapping between symbolic and numeric debug levels has changed
-The whole concept of maintaining the netlogon secure channel
-to (other) domain controllers is rewritten in order to maintain
-global state in a netlogon_creds_cli.tdb. This is the proper fix
-for a large number of bugs:
+ Configurations containing numeric debug levels should be updated.
+ Symbolic debug levels are recommended. See the DEBUG LEVEL section
+ of ctdb(7) for details.
- https://bugzilla.samba.org/show_bug.cgi?id=6563
- https://bugzilla.samba.org/show_bug.cgi?id=7944
- https://bugzilla.samba.org/show_bug.cgi?id=7945
- https://bugzilla.samba.org/show_bug.cgi?id=7568
- https://bugzilla.samba.org/show_bug.cgi?id=8599
+* Tunable IPAllocAlgorithm replaces LCP2PublicIPs, DeterministicIPs
-In addition a strong session key is required by default now,
-which means that communication to older servers or clients
-might be rejected by default.
+ See ctdb-tunables(7) for details
-For the client side we the following new options:
-"require strong key" (yes by default), "reject md5 servers" (no by default).
-E.g. for Samba 3.0.37 you need "require strong key = no" and
-for NT4 DCs you need "require strong key = no" and "client NTLMv2 auth = no",
+* CTDB's configuration tunables should be consistently set across a cluster
-On the server side (as domain controller) we have the following new options:
-"allow nt4 crypto" (no by default), "reject md5 client" (no by default).
-E.g. in order to allow Samba < 3.0.27 or NT4 members to work
-you need "allow nt4 crypto = yes"
+ This has always been the cases for most tunables but this fact is
+ now documented.
-winbindd does not list group memberships for display purposes
-(e.g. getent group <domain\<group>) anymore by default.
-The new default is "winbind expand groups = 0" now,
-the reason for this is the same as for "winbind enum users = no"
-and "winbind enum groups = no". Providing this information is not always
-reliably possible, e.g. if there're trusted domains.
+* CTDB ships with recovery lock helper call-outs for etcd and Ceph RADOS
-Please consult the smb.conf manpage for more details of this new options.
+ To build/install these, use the --enable-etcd-reclock and
+ --enable-ceph-reclock configure options.
-Larger IO sizes for SMB2/3 by default
-=====================================
-The default values for "smb2 max read", "smb2 max write" and "smb2 max trans"
-have been changed to 8388608 (8MiB) in order to match the default of
-Windows 2012R2.
+REMOVED FEATURES
+================
-######################################################################
-Changes
-#######
smb.conf changes
-----------------
+================
- Parameter Name Description Default
- -------------- ----------- -------
+ 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
- allow nt4 crypto New no
- neutralize nt4 emulation New no
- reject md5 client New no
- reject md5 servers New no
- require strong key New yes
- smb2 max read Changed default 8388608
- smb2 max write Changed default 8388608
- smb2 max trans Changed default 8388608
- winbind expand groups Changed default 0
KNOWN ISSUES
============
+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 4.2 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 / nivanova / samba-autobuild / .git / blobdiff