4 This is the first release candidate of Samba 4.4. This is *not*
5 intended for production environments and is designed for testing
6 purposes only. Please report any defects via the Samba bug reporting
7 system at https://bugzilla.samba.org/.
9 Samba 4.4 will be the next version of the Samba suite.
21 Asynchronous flush requests
22 ---------------------------
24 Flush requests from SMB2/3 clients are handled asynchronously and do
25 not block the processing of other requests. Note that 'strict sync'
26 has to be set to 'yes' for Samba to honor flush requests from SMB
32 Remove '--with-aio-support' configure option. We no longer would ever prefer
33 POSIX-RT aio, use pthread_aio instead.
38 The 'samba-tool sites' subcommand can now be run against another server by
39 specifying an LDB URL using the '-H' option and not against the local database
40 only (which is still the default when no URL is given).
42 samba-tool domain demote
43 ------------------------
45 Add '--remove-other-dead-server' option to 'samba-tool domain demote'
46 subcommand. The new version of this tool now can remove another DC that is
47 itself offline. The '--remove-other-dead-server' removes as many references
48 to the DC as possible.
50 samba-tool drs clone-dc-database
51 --------------------------------
53 Replicate an initial clone of domain, but do not join it.
54 This is developed for debugging purposes, but not for setting up another DC.
59 Add '--set-nt-hash' option to pdbedit to update user password from nt-hash
60 hexstring. 'pdbedit -vw' shows also password hashes.
65 Add a GnuTLS based backupkey implementation.
70 Using the '--offline-logon' enables ntlm_auth to use cached passwords when the
73 Allow '--password' force a local password check for ntlm-server-1 mode.
78 A new VFS module called vfs_offline has been added to mark all files in the
79 share as offline. It can be useful for shares mounted on top of a remote file
80 system (either through a samba VFS module or via FUSE).
85 The Samba KCC has been improved, but is still disabled by default.
90 There were several improvements concerning the Samba DNS server.
95 There were some improvements in the Active Directory area.
100 The WINS nsswitch module has been rewritten to address memory issues and to
101 simplify the code. The module now uses libwbclient to do WINS queries. This
102 means that winbind needs to be running in order to resolve WINS names using
103 the nss_wins module. This does not affect smbd.
108 * CTDB now uses a newly implemented parallel database recovery scheme
109 that avoids deadlocks with smbd.
111 In certain circumstances CTDB and smbd could deadlock. The new
112 recovery implementation avoid this. It also provides improved
113 recovery performance.
115 * All files are now installed into and referred to by the paths
116 configured at build time. Therefore, CTDB will now work properly
117 when installed into the default location at /usr/local.
119 * Public CTDB header files are no longer installed, since Samba and
120 CTDB are built from within the same source tree.
122 * CTDB_DBDIR can now be set to tmpfs[:<tmpfs-options>]
124 This will cause volatile TDBs to be located in a tmpfs. This can
125 help to avoid performance problems associated with contention on the
126 disk where volatile TDBs are usually stored. See ctdbd.conf(5) for
129 * Configuration variable CTDB_NATGW_SLAVE_ONLY is no longer used.
130 Instead, nodes should be annotated with the "slave-only" option in
131 the CTDB NAT gateway nodes file. This file must be consistent
132 across nodes in a NAT gateway group. See ctdbd.conf(5) for more
135 * New event script 05.system allows various system resources to be
138 This can be helpful for explaining poor performance or unexpected
139 behaviour. New configuration variables are
140 CTDB_MONITOR_FILESYSTEM_USAGE, CTDB_MONITOR_MEMORY_USAGE and
141 CTDB_MONITOR_SWAP_USAGE. Default values cause warnings to be
142 logged. See the SYSTEM RESOURCE MONITORING CONFIGURATION in
143 ctdbd.conf(5) for more information.
145 The memory, swap and filesystem usage monitoring previously found in
146 00.ctdb and 40.fs_use is no longer available. Therefore,
147 configuration variables CTDB_CHECK_FS_USE, CTDB_MONITOR_FREE_MEMORY,
148 CTDB_MONITOR_FREE_MEMORY_WARN and CTDB_CHECK_SWAP_IS_NOT_USED are
151 * The 62.cnfs eventscript has been removed. To get a similar effect
152 just do something like this:
154 mmaddcallback ctdb-disable-on-quorumLoss \
155 --command /usr/bin/ctdb \
156 --event quorumLoss --parms "disable"
158 mmaddcallback ctdb-enable-on-quorumReached \
159 --command /usr/bin/ctdb \
160 --event quorumReached --parms "enable"
162 * The CTDB tunable parameter EventScriptTimeoutCount has been renamed
163 to MonitorTimeoutCount
165 It has only ever been used to limit timed-out monitor events.
167 Configurations containing CTDB_SET_EventScriptTimeoutCount=<n> will
168 cause CTDB to fail at startup. Useful messages will be logged.
170 * The commandline option "-n all" to CTDB tool has been removed.
172 The option was not uniformly implemented for all the commands.
173 Instead of command "ctdb ip -n all", use "ctdb ip all".
175 * All CTDB current manual pages are now correctly installed
184 Several public headers are not installed any longer. They are made for internal
185 use only. More public headers will very likely be removed in future releases.
187 The following headers are not installed any longer:
188 dlinklist.h, gen_ndr/epmapper.h, gen_ndr/mgmt.h, gen_ndr/ndr_atsvc_c.h,
189 gen_ndr/ndr_epmapper_c.h, gen_ndr/ndr_epmapper.h, gen_ndr/ndr_mgmt_c.h,
190 gen_ndr/ndr_mgmt.h,gensec.h, ldap_errors.h, ldap_message.h, ldap_ndr.h,
191 ldap-util.h, pytalloc.h, read_smb.h, registry.h, roles.h, samba_util.h,
192 smb2_constants.h, smb2_create_blob.h, smb2.h, smb2_lease.h, smb2_signing.h,
193 smb_cli.h, smb_cliraw.h, smb_common.h, smb_composite.h, smb_constants.h,
194 smb_raw.h, smb_raw_interfaces.h, smb_raw_signing.h, smb_raw_trans2.h,
195 smb_request.h, smb_seal.h, smb_signing.h, smb_unix_ext.h, smb_util.h,
196 torture.h, tstream_smbXcli_np.h.
198 vfs_smb_traffic_analyzer
199 ------------------------
201 The SMB traffic analyzer VFS module has been removed, because it is not
202 maintained any longer and not widely used.
207 The scannedonly VFS module has been removed, because it is not maintained
213 Parameter Name Description Default
214 -------------- ----------- -------
215 aio max threads New 100
216 ldap page size Changed default 1000
224 #######################################
225 Reporting bugs & Development Discussion
226 #######################################
228 Please discuss this release on the samba-technical mailing list or by
229 joining the #samba-technical IRC channel on irc.freenode.net.
231 If you do report problems then please try to send high quality
232 feedback. If you don't provide vital information to help us track down
233 the problem then you will probably be ignored. All bug reports should
234 be filed under the Samba 4.1 and newer product in the project's Bugzilla
235 database (https://bugzilla.samba.org/).
238 ======================================================================
239 == Our Code, Our Bugs, Our Responsibility.
241 ======================================================================