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 'smbstatus' was enhanced to show the state of signing and encryption for
70 The -u and -p options for user and password were replaced by the -U option that
71 accepts username[%password] as in many other tools of the Samba suite.
72 Similary, smbgetrc files do not accept username and password options any more,
73 only a single "user" option which also accepts user%password combinations.
74 The -P option was removed.
79 Add a GnuTLS based backupkey implementation.
84 Using the '--offline-logon' enables ntlm_auth to use cached passwords when the
87 Allow '--password' force a local password check for ntlm-server-1 mode.
92 A new VFS module called vfs_offline has been added to mark all files in the
93 share as offline. It can be useful for shares mounted on top of a remote file
94 system (either through a samba VFS module or via FUSE).
99 The Samba KCC has been improved, but is still disabled by default.
104 There were several improvements concerning the Samba DNS server.
109 There were some improvements in the Active Directory area.
114 The WINS nsswitch module has been rewritten to address memory issues and to
115 simplify the code. The module now uses libwbclient to do WINS queries. This
116 means that winbind needs to be running in order to resolve WINS names using
117 the nss_wins module. This does not affect smbd.
122 * CTDB now uses a newly implemented parallel database recovery scheme
123 that avoids deadlocks with smbd.
125 In certain circumstances CTDB and smbd could deadlock. The new
126 recovery implementation avoid this. It also provides improved
127 recovery performance.
129 * All files are now installed into and referred to by the paths
130 configured at build time. Therefore, CTDB will now work properly
131 when installed into the default location at /usr/local.
133 * Public CTDB header files are no longer installed, since Samba and
134 CTDB are built from within the same source tree.
136 * CTDB_DBDIR can now be set to tmpfs[:<tmpfs-options>]
138 This will cause volatile TDBs to be located in a tmpfs. This can
139 help to avoid performance problems associated with contention on the
140 disk where volatile TDBs are usually stored. See ctdbd.conf(5) for
143 * Configuration variable CTDB_NATGW_SLAVE_ONLY is no longer used.
144 Instead, nodes should be annotated with the "slave-only" option in
145 the CTDB NAT gateway nodes file. This file must be consistent
146 across nodes in a NAT gateway group. See ctdbd.conf(5) for more
149 * New event script 05.system allows various system resources to be
152 This can be helpful for explaining poor performance or unexpected
153 behaviour. New configuration variables are
154 CTDB_MONITOR_FILESYSTEM_USAGE, CTDB_MONITOR_MEMORY_USAGE and
155 CTDB_MONITOR_SWAP_USAGE. Default values cause warnings to be
156 logged. See the SYSTEM RESOURCE MONITORING CONFIGURATION in
157 ctdbd.conf(5) for more information.
159 The memory, swap and filesystem usage monitoring previously found in
160 00.ctdb and 40.fs_use is no longer available. Therefore,
161 configuration variables CTDB_CHECK_FS_USE, CTDB_MONITOR_FREE_MEMORY,
162 CTDB_MONITOR_FREE_MEMORY_WARN and CTDB_CHECK_SWAP_IS_NOT_USED are
165 * The 62.cnfs eventscript has been removed. To get a similar effect
166 just do something like this:
168 mmaddcallback ctdb-disable-on-quorumLoss \
169 --command /usr/bin/ctdb \
170 --event quorumLoss --parms "disable"
172 mmaddcallback ctdb-enable-on-quorumReached \
173 --command /usr/bin/ctdb \
174 --event quorumReached --parms "enable"
176 * The CTDB tunable parameter EventScriptTimeoutCount has been renamed
177 to MonitorTimeoutCount
179 It has only ever been used to limit timed-out monitor events.
181 Configurations containing CTDB_SET_EventScriptTimeoutCount=<n> will
182 cause CTDB to fail at startup. Useful messages will be logged.
184 * The commandline option "-n all" to CTDB tool has been removed.
186 The option was not uniformly implemented for all the commands.
187 Instead of command "ctdb ip -n all", use "ctdb ip all".
189 * All CTDB current manual pages are now correctly installed
198 Several public headers are not installed any longer. They are made for internal
199 use only. More public headers will very likely be removed in future releases.
201 The following headers are not installed any longer:
202 dlinklist.h, gen_ndr/epmapper.h, gen_ndr/mgmt.h, gen_ndr/ndr_atsvc_c.h,
203 gen_ndr/ndr_epmapper_c.h, gen_ndr/ndr_epmapper.h, gen_ndr/ndr_mgmt_c.h,
204 gen_ndr/ndr_mgmt.h,gensec.h, ldap_errors.h, ldap_message.h, ldap_ndr.h,
205 ldap-util.h, pytalloc.h, read_smb.h, registry.h, roles.h, samba_util.h,
206 smb2_constants.h, smb2_create_blob.h, smb2.h, smb2_lease.h, smb2_signing.h,
207 smb_cli.h, smb_cliraw.h, smb_common.h, smb_composite.h, smb_constants.h,
208 smb_raw.h, smb_raw_interfaces.h, smb_raw_signing.h, smb_raw_trans2.h,
209 smb_request.h, smb_seal.h, smb_signing.h, smb_unix_ext.h, smb_util.h,
210 torture.h, tstream_smbXcli_np.h.
212 vfs_smb_traffic_analyzer
213 ------------------------
215 The SMB traffic analyzer VFS module has been removed, because it is not
216 maintained any longer and not widely used.
221 The scannedonly VFS module has been removed, because it is not maintained
227 Parameter Name Description Default
228 -------------- ----------- -------
229 aio max threads New 100
230 ldap page size Changed default 1000
238 #######################################
239 Reporting bugs & Development Discussion
240 #######################################
242 Please discuss this release on the samba-technical mailing list or by
243 joining the #samba-technical IRC channel on irc.freenode.net.
245 If you do report problems then please try to send high quality
246 feedback. If you don't provide vital information to help us track down
247 the problem then you will probably be ignored. All bug reports should
248 be filed under the Samba 4.1 and newer product in the project's Bugzilla
249 database (https://bugzilla.samba.org/).
252 ======================================================================
253 == Our Code, Our Bugs, Our Responsibility.
255 ======================================================================