Release Announcements
=====================
-This is the first preview release of Samba 4.6. This is *not*
+This is the first release candidate of Samba 4.8. 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 4.8 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.
+KDC GPO application
+-------------------
-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.
+Adds Group Policy support for the Samba kdc. Applies password policies
+(minimum/maximum password age, minimum password length, and password
+complexity) and kerberos policies (user/service ticket lifetime and
+renew lifetime).
-Users who were using the wrong spelling "ressource" with two "s" can keep the
-setting, but are advised to switch to the correct spelling.
+Adds the samba_gpoupdate script for applying and unapplying
+policy. Can be applied automatically by setting
-NEW FEATURES/CHANGES
-====================
+ 'server services = +gpoupdate'.
+
+Time Machine Support with vfs_fruit
+-----------------------------------
+
+Samba can be configured as a Time Machine target for Apple Mac devices
+through the vfs_fruit module. When enabling a share for Time Machine
+support the relevant Avahi records to support discovery will be published
+for installations that have been built against the Avahi client library.
+
+Shares can be designated as a Time Machine share with the following setting:
+
+ 'fruit:time machine = yes'
+
+Support for lower casing the MDNS Name
+--------------------------------------
+
+Allows the server name that is advertised through MDNS to be set to the
+hostname rather than the Samba NETBIOS name. This allows an administrator
+to make Samba registered MDNS records match the case of the hostname
+rather than being in all capitals.
+
+This can be set with the following settings:
+
+ 'mdns name = mdns'
+
+Encrypted secrets
+-----------------
+
+Attributes deemed to be sensitive are now encrypted on disk. The sensitive
+values are currently:
+ pekList
+ msDS-ExecuteScriptPassword
+ currentValue
+ dBCSPwd
+ initialAuthIncoming
+ initialAuthOutgoing
+ lmPwdHistory
+ ntPwdHistory
+ priorValue
+ supplementalCredentials
+ trustAuthIncoming
+ trustAuthOutgoing
+ unicodePwd
+ clearTextPassword
+
+This encryption is enabled by default on a new provision or join, it
+can be disabled at provision or join time with the new option
+'--plaintext-secrets'.
+
+However, an in-place upgrade will not encrypt the database.
+
+Once encrypted, it is not possible to do an in-place downgrade (eg to
+4.7) of the database. To obtain an unencrypted copy of the database a
+new DC join should be performed, specifying the '--plaintext-secrets'
+option.
-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 key file "encrypted_secrets.key" is created in the same directory
+as the database and should NEVER be disclosed. It is included by the
+samba_backup script.
-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.
+NT4-style replication based net commands removed
+------------------------------------------------
+The following commands and sub-commands have been removed from the
+"net" utility:
-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.
+net rpc samdump
+net rpc vampire ldif
+
+Also, replicating from a real NT4 domain with "net rpc vampire" and
+"net rpc vampire keytab" has been removed.
+
+The NT4-based commands were accidentially broken in 2013, and nobody
+noticed the breakage. So instead of fixing them including tests (which
+would have meant writing a server for the protocols, which we don't
+have) we decided to remove them.
+
+For the same reason, the "samsync", "samdeltas" and "database_redo"
+commands have been removed from rpcclient.
+
+"net rpc vampire keytab" from Active Directory domains continues to be
+supported.
+
+vfs_aio_linux module removed
+----------------------------
+
+The current Linux kernel aio does not match what Samba would
+do. Shipping code that uses it leads people to false
+assumptions. Samba implements async I/O based on threads by default,
+there is no special module required to see benefits of read and write
+request being sent do the disk in parallel.
+
+smbclient reparse point symlink parameters reversed
+---------------------------------------------------
+
+A bug in smbclient caused the 'symlink' command to reverse the
+meaning of the new name and link target parameters when creating a
+reparse point symlink against a Windows server. As this is a
+little used feature the ordering of these parameters has been
+reversed to match the parameter ordering of the UNIX extensions
+'symlink' command. The usage message for this command has also
+been improved to remove confusion.
+
+Winbind changes
+---------------
+
+The dependency to global list of trusted domains within
+the winbindd processes has been reduced a lot.
+
+The construction of that global list is not reliable and often
+incomplete in complex trust setups. In most situations the list is not needed
+any more for winbindd to operate correctly. E.g. for plain file serving via SMB
+using a simple idmap setup with autorid, tdb or ad. However some more complex
+setups require the list, e.g. if you specify idmap backends for specific
+domains. Some pam_winbind setups may also require the global list.
+
+If you have a setup that doesn't require the global list, you should set
+"winbind scan trusted domains = no".
REMOVED FEATURES
================
+The two commands 'net serverid list' and 'net serverid wipe' have been
+removed, because the file serverid.tdb is not used anymore.
+
+'net serverid list' can be replaced by listing all files in the
+subdirectory "msg.lock" of Samba's "lock directory". The unique id
+listed by 'net serverid list' is stored in every process' lockfile in
+"msg.lock".
+
+'net serverid wipe' is not necessary anymore. It was meant primarily
+for clustered environments, where the serverid.tdb file was not
+properly cleaned up after single node crashes. Nowadays smbd and
+winbind take care of cleaning up the msg.lock and msg.sock directories
+automatically.
+
smb.conf changes
================
- Parameter Name Description Default
- -------------- ----------- -------
- kerberos encryption types New all
- inherit owner New option
- fruit:resource Spelling correction
+ Parameter Name Description Default
+ -------------- ----------- -------
+ auth methods Removed
+ binddns dir New
+ client schannel Default changed/ yes
+ Deprecated
+ gpo update command New
+ ldap ssl ads Deprecated
+ map untrusted to domain Removed
+ oplock contention limit Removed
+ prefork children New 1
+ mdns name Added netbios
+ fruit:time machine Added false
+ profile acls Removed
+ use spnego Removed
+ server schannel Default changed/ yes
+ Deprecated
+ unicode Deprecated
+ winbind scan trusted domains New yes
+ winbind trusted domains only Removed
KNOWN ISSUES
============
-Currently none.
+https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.8#Release_blocking_bugs
+
#######################################
Reporting bugs & Development Discussion
git.samba.org / metze / samba / wip.git / blobdiff