-What's new in Samba 4 alpha5
-============================
+Release Announcements
+=====================
+
+This is the second release candidate of Samba 4.0. 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 4.0 will be the next version of the Samba suite and incorporates
+all the technology found in both the Samba4 series and the
+stable 3.x series. The primary additional features over Samba 3.6 are
+support for the Active Directory logon protocols used by Windows 2000
+and above.
-Samba 4 is the ambitious next version of the Samba suite that is being
-developed in parallel to the stable 3.0 series. The main emphasis in
-this branch is support for the Active Directory logon protocols used
-by Windows 2000 and above.
+This release contains the best of all of Samba's
+technology parts, both a file server (that you can reasonably expect
+to upgrade existing Samba 3.x releases to) and the AD domain
+controller work previously known as 'samba4'.
-Samba4 alpha5 follows on from the alpha release series we have been
-publishing since September 2007
+If you are upgrading, or looking to develop, test or deploy Samba 4.0
+releases candidates, you should backup all configuration and data.
-WARNINGS
-========
-Samba4 alpha5 is not a final Samba release. That is more a reference
-to Samba4's lack of the features we expect you will need than a
-statement of code quality, but clearly it hasn't seen a broad
-deployment yet. If you were to upgrade Samba3 (or indeed Windows) to
-Samba4, you would find many things work, but that other key features
-you may have relied on simply are not there yet.
+UPGRADING
+=========
-For example, while Samba 3.0 is an excellent member of a Active
-Directory domain, Samba4 is happier as a domain controller, and it is
-in this role where it has seen deployment into production.
+Users upgrading from Samba 3.x domain controllers and wanting to use
+Samba 4.0 as an AD DC should use the 'samba-tool domain
+classicupgrade' command. See the wiki for more details:
+https://wiki.samba.org/index.php/Samba4/samba3upgrade/HOWTO.
-Samba4 is subjected to an awesome battery of tests on an
-automated basis, we have found Samba4 to be very stable in it's
-behaviour. We have to recommend against upgrading production servers
-from Samba 3 to Samba 4 at this stage, because there may be the features on
-which you may rely that are not present, or the mapping of
-your configuration and user database may not be complete.
+Users upgrading from Samba 4.0 alpha and beta releases since alpha15
+should run 'samba-tool dbcheck --cross-ncs --fix' before re-starting
+Samba. Users upgrading from earlier alpha releases should contact the
+team for advice.
+
+Users upgrading an AD DC from any previous release should run
+'samba-tool ntacl sysvolreset' to re-sync ACLs on the sysvol share
+with those matching the GPOs in LDAP and the defaults from an initial
+provision. This will set an underlying POSIX ACL if required (eg not
+using the NTVFS file server).
+
+If you used the BIND9_FLATFILE or BIND9_DLZ features,
+you'll have to add '-dns' to the 'server services' option,
+as the internal dns server (SAMBA_INTERNAL) is the default now.
-If you are upgrading, or looking to develop, test or deploy Samba4, you should
-backup all configuration and data.
NEW FEATURES
============
-Samba4 supports the server-side of the Active Directory logon environment
-used by Windows 2000 and later, so we can do full domain join
-and domain logon operations with these clients.
+Samba 4.0 supports the server-side of the Active Directory logon
+environment used by Windows 2000 and later, so we can do full domain
+join and domain logon operations with these clients.
Our Domain Controller (DC) implementation includes our own built-in
LDAP server and Kerberos Key Distribution Center (KDC) as well as the
the infamous Kerberos PAC, and include it with the Kerberos tickets we
issue.
-The new VFS features in Samba 4 adapts the filesystem on the server to
-match the Windows client semantics, allowing Samba 4 to better match
-windows behaviour and application expectations. This includes file
-annotation information (in streams) and NT ACLs in particular. The
-VFS is backed with an extensive automated test suite.
-
-A new scripting interface has been added to Samba 4, allowing
-Python programs to interface to Samba's internals.
-
-The Samba 4 architecture is based around an LDAP-like database that
-can use a range of modular backends. One of the backends supports
-standards compliant LDAP servers (including OpenLDAP), and we are
-working on modules to map between AD-like behaviours and this backend.
-We are aiming for Samba 4 to be powerful frontend to large
-directories.
-
-CHANGES SINCE Alpha4
-=====================
-
-In the time since Samba4 Alpha4 was released in June 2008, Samba has
-continued to evolve, but you may particularly notice these areas:
-
- LDAP backend support restored (issues preventing the use of the LDAP
- backend in alpha4 have been addressed).
+Samba 4.0.0rc2 ships with two distinct file servers. We now use the
+file server from the Samba 3.x series 'smbd' for all file serving by
+default.
+
+Samba 4.0 also ships with the 'NTVFS' file server. This file server
+is what was used in all previous releases of Samba 4.0, and is
+tuned to match the requirements of an AD domain controller. We
+continue to support this, not only to provide continuity to
+installations that have deployed it as part of an AD DC, but also as a
+running example of the NT-FSA architecture we expect to move smbd to in
+the longer term.
+
+For pure file server work, the binaries users would expect from that
+series (nmbd, winbindd, smbpasswd) continue to be available. When
+running an AD DC, you only need to run 'samba' (not
+nmbd/smbd/winbind), as the required services are co-coordinated by this
+master binary.
+
+As DNS is an integral part of Active Directory, we also provide two DNS
+solutions, a simple internal DNS server for 'out of the box' configurations
+and a more elaborate BIND plugin using the BIND DLZ mechanism in versions
+9.8 and 9.9. During the provision, you can select which backend to use.
+With the internal backend, your DNS server is good to go.
+If you chose the BIND_DLZ backend, a configuration file will be generated
+for bind to make it use this plugin, as well as a file explaining how to
+set up bind.
+
+To provide accurate timestamps to Windows clients, we integrate with
+the NTP project to provide secured NTP replies. To use you need to
+start ntpd and configure it with the 'restrict ... ms-sntp' and
+ntpsigndsocket options.
+
+Finally, a new scripting interface has been added to Samba 4, allowing
+Python programs to interface to Samba's internals, and many tools and
+internal workings of the DC code is now implemented in python.
+
+
+######################################################################
+Changes
+#######
+
+smb.conf changes
+----------------
+
+ Parameter Name Description Default
+ -------------- ----------- -------
+
+ allow dns updates New disabled
+ announce as Removed
+ announce version Removed
+ cldap port New 0
+ client max protocol New
+ client min protocol New
+ client signing Changed default default
+ dcerpc endpoint servers New
+ dgram port New 0
+ directory security mask Removed
+ display charset Removed
+ dns forwarder New
+ dns update command New
+ force security mode Removed
+ force directory security mode Removed
+ homedir map Changed default auto.home
+ kernel share modes New Yes
+ kpasswd port New 0
+ krb5 port New 0
+ max protocol Removed
+ min protocol Removed
+ nbt client socket address New 0.0.0.0
+ nbt port New 0
+ nsupdate command New
+ ntp signd socket directory New
+ ntvfs handler New
+ paranoid server security Removed
+ pid directory New
+ printer admin Removed
+ rndc command New
+ rpc big endian New No
+ samba kcc command New
+ security mask Removed
+ send spnego principal Removed
+ server max protocol New SMB3
+ server min protocol New LANMAN1
+ server role New auto
+ server services New
+ server signing Changed default default
+ share backend New
+ share modes Removed
+ smb2 max read Changed default 1048576
+ smb2 max write Changed default 1048576
+ smb2 max trans Changed default 1048576
+ socket address Removed
+ spn update command New
+ time offset Removed
+ tls cafile New
+ tls certfile New
+ tls crlfile New
+ tls dh params file New
+ tls enabled New No
+ tls keyfile New
+ unicode New Yes
+ web port New 0
+ winbindd privileged socket directory New
+ winbind sealed pipes New No
+ winbindd socket directory New
+
+
+CHANGES SINCE 4.0.0rc1
+======================
+
+o Michael Adam <obnox@samba.org>
+ * BUG 9173: Make the SMB2 compound request create/delete_on_close/
+ close work as Windows.
+
+
+o Jeremy Allison <jra@samba.org>
+ * BUG 9161: Re-add the vfs_Chdir() cache.
+ * BUG 9189: SMB2 Create doesn't return correct MAX ACCESS access mask in
+ blob.
+ * BUG 9213: Bad ASN.1 NegTokenInit packet can cause invalid free.
+
+
+o Christian Ambach <ambi@samba.org>
+ * BUG 9162: Fix the build of the GPFS VFS module.
+ * BUG 9197: Only do 'printing_subsystem_update' when printing is enabled.
+
+
+o Alexander Bokovoy <ab@samba.org>
+ * BUG 9157: Cleanup idmap_ldap build dependencies.
+
+
+o Ira Cooper <ira@samba.org>
+ * BUG 9162: Fix build on Illumos/Solaris using '--with-acl'.
+ * BUG 9173: Compound requests should continue processing.
+
+
+o Björn Jacke <bj@sernet.de>
+ * BUG 9162: Fix the build of the ACL VFS modules.
+ * BUG 9172: Fix reporting of gfs2 quotas.
+
+
+o Volker Lendecke <vl@samba.org>
+ * BUG 9217: CreateFile with FILE_DIRECTORY_FILE can create directories
+ on read-only shares.
+
+
+o Stefan Metzmacher <metze@samba.org>
+ * BUG 9173: Make the SMB2 compound request create/delete_on_close/
+ close work as Windows.
+ * BUG 9184: Fix receiving of UDP packets from 0 bytes.
+ * BUG 9191: Release the share mode lock before calling exit_server().
+ * BUG 9193: Fix usage of invalid memory in smb2_signing_check_pdu().
+ * BUG 9194: Disallow '--prefix=/usr' and '--prefix=/usr/local' without
+ '--enable-fhs'.
+ * BUG 9198: Fix RHEL-CTDB packaging.
+
+
+o Matthieu Patou <mat@matws.net>
+ * BUG 9199: Fix usage of "panic action".
+
+
+o Andreas Schneider <asn@samba.org>
+ * BUG 8632: Fix builtin forms order to match Windows again.
+ * BUG 9159: Fix generating idmap manpages.
+ * BUG 9218: Don't segfault if user specified ports out for range.
- SMB2 Support: The SMB2 server, while still disabled, has improved,
- and now supports SMB2 signing.
- OpenChange support: Updates have been made since alpha4 to better
- support OpenChange's use of Samba4's libraries.
-
- Faster ldb loading: A fix to avoid calling 'init_module' (which was
- not defined by Samba modules, but was by the C library) will fix
- some of the slowness in authentication.
-
- SWAT Remains Disabled: Due to a lack of developer time and without a
- long-term web developer to maintain it, the SWAT web UI remains been
- disabled (and would need to be rewritten in python in any case).
-
- GNU Make: To try and simplfy our build system, we rely on GNU Make
- to avoid autogenerating a massive single makefile.
+KNOWN ISSUES
+============
+- 'samba-tool domain classicupgrade' will fail when setting ACLs on
+ the GPO folders with NT_STATUS_INVALID_ONWER in the default
+ configuration. This happens if, as is typical a 'domain admins'
+ group (-512) is mapped in the passdb backend being upgraded. This
+ is because the group mapping to a GID only prevents Samba from
+ allocating a uid for that group. The uid is needed so the 'domain
+ admins' group can own the GPO file objects.
-These are just some of the highlights of the work done in the past few
-months. More details can be found in our GIT history.
+ To work around this issue, remove the 'domain admins' group before
+ upgrade, as it will be re-created automatically. You will
+ of course need to fill in the group membership again. A future release
+ will make this automatic, or find some other workaround.
+- This release makes the s3fs file server the default, as this is the
+ file server combination we will use for the Samba 4.0 release.
-CHANGES
-=======
+- For similar reasons, sites with ACLs stored by the ntvfs file server
+ may wish to continue to use that file server implementation, as a
+ posix ACL will similarly not be set in this case.
-Those familiar with Samba 3 can find a list of user-visible changes
-since that release series in the NEWS file.
+- Replication of DNS data from one AD server to another may not work.
+ The DNS data used by the internal DNS server and bind9_dlz is stored
+ in an application partition in our directory. The replication of
+ this partition is not yet reliable.
-KNOWN ISSUES
-============
+- Replication may fail on FreeBSD due to getaddrinfo() rejecting names
+ containing _. A workaround will be in a future release.
-- Domain member support is in it's infancy, and is not comparable to
- the support found in Samba3.
+- samba_upgradeprovision should not be run when upgrading to this release
+ from a recent release. No important database format changes have
+ been made since alpha16.
-- There is no printing support in the current release.
+- Installation on systems without a system iconv (and developer
+ headers at compile time) is known to cause errors when dealing with
+ non-ASCII characters.
-- There is no NetBIOS browsing support in the current release
+- Domain member support in the 'samba' binary is in its infancy, and
+ is not comparable to the support found in winbindd. As such, do not
+ use the 'samba' binary (provided for the AD server) on a member
+ server.
-- The Samba4 port of the CTDB clustering support is not yet complete
+- There is no NetBIOS browsing support (network neighbourhood)
+ available for the AD domain controller. (Support in nmbd and smbd
+ for classic domains and member/standalone servers is unchanged).
- Clock Synchronisation is critical. Many 'wrong password' errors are
actually due to Kerberos objecting to a clock skew between client
- and server. (The NTP work in the previous alpha is partly to assist
+ and server. (The NTP work in the previous alphas are partly to assist
with this problem).
-- Samba4 alpha5 is currently only portable to recent Linux
- distributions. Work to return support for other Unix varients is
- expected during the next alpha cycle
+- The DRS replication code may fail. Please contact the team if you
+ experience issues with DRS replication, as we have fixed many issues
+ here in response to feedback from our production users.
+
+
+RUNNING Samba 4.0 as an AD DC
+=============================
+
+A short guide to setting up Samba 4 as an AD DC can be found on the wiki:
-- Samba4 alpha5 is incompatible with GnuTLS 2.0, found in Fedora 9 and
- recent Ubuntu releases. GnuTLS use may be disabled using the
- --disable-gnutls argument to ./configure. (otherwise 'make test' and
- LDAPS operations will hang).
+ http://wiki.samba.org/index.php/Samba4/HOWTO
-RUNNING Samba4
-==============
+#######################################
+Reporting bugs & Development Discussion
+#######################################
-A short guide to setting up Samba 4 can be found in the howto.txt file
-in root of the tarball.
+Please discuss this release on the samba-technical mailing list or by
+joining the #samba-technical IRC channel on irc.freenode.net.
-DEVELOPMENT and FEEDBACK
-========================
-Bugs can be filed at https://bugzilla.samba.org/ but please be aware
-that many features are simply not expected to work at this stage.
+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 4.0 product in the project's Bugzilla
+database (https://bugzilla.samba.org/).
-The Samba Wiki at http://wiki.samba.org should detail some of these
-development plans.
-Development and general discussion about Samba 4 happens mainly on
-the #samba-technical IRC channel (on irc.freenode.net) and
-the samba-technical mailing list (see http://lists.samba.org/ for
-details).
+======================================================================
+== Our Code, Our Bugs, Our Responsibility.
+== The Samba Team
+======================================================================