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Release Announcements
=====================
This is the first preview release of Samba 4.11. 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 4.11 will be the next version of the Samba suite.
UPGRADING
=========
NEW FEATURES/CHANGES
====================
Default samba process model
---------------------------
The default for the --model argument passed to the samba executable has changed
from 'standard' to 'prefork'. This means a difference in the number of samba
child processes that are created to handle client connections. The previous
default would create a separate process for every LDAP or NETLOGON client
connection. For a network with a lot of persistent client connections, this
could result in significant memory overhead. Now, with the new default of
'prefork', the LDAP, NETLOGON, and KDC services will create a fixed number of
worker processes at startup and share the client connections amongst these
workers. The number of worker processes can be configured by the 'prefork
children' setting in the smb.conf (the default is 4).
Authentication Logging.
-----------------------
Winbind now logs PAM_AUTH and NTLM_AUTH events, a new attribute "logonId" has
been added to the Authentication JSON log messages. This contains a random
logon id that is generated for each PAM_AUTH and NTLM_AUTH request and is passed
to SamLogon, linking the windbind and SamLogon requests.
The serviceDescription of the messages is set to "winbind", the authDescription
is set to one of:
"PASSDB, <command>, <pid>"
"PAM_AUTH, <command>, <pid>"
"NTLM_AUTH, <command>, <pid>"
where:
<command> is the name of the command makinmg the winbind request i.e. wbinfo
<pid> is the process id of the requesting process.
The version of the JSON Authentication messages has been changed to 1.2 from 1.1
Reindex performance improvements
--------------------------------
The performance of samba-tool dbcheck --reindex has been improved, especially
for large domains.
LDAP referrals
--------------
The scheme of returned LDAP referrals now reflects the scheme of the original
request, i.e. referrals received via ldap are prefixed with "ldap://"
and those over ldaps are prefixed with "ldaps://"
Previously all referrals were prefixed with "ldap://"
Bind9 logging
-------------
It is now possible to log the duration of DNS operations performed by Bind9
This should aid future diagnosis of performance issues, and could be used to
monitor DNS performance. The logging is enabled by setting log level to
"dns:10" in smb.conf
The logs are currently Human readable text only, i.e. no JSON formatted output.
Log lines are of the form:
<function>: DNS timing: result: [<result>] duration: (<duration>)
zone: [<zone>] name: [<name>] data: [<data>]
durations are in microseconds.
Default schema updated to 2012_R2
-------------------------
Default AD schema changed from 2008_R2 to 2012_R2. 2012_R2 functional level
is not yet available. Older schemas can be used by provisioning with the
'--base-schema' argument. Existing installations can be updated with the
samba-tool command "domain schemaupgrade".
REMOVED FEATURES
================
Web server
----------
As a leftover from work related to the Samba Web Administration Tool (SWAT),
Samba still supported a Python WSGI web server (which could still be turned on
from the 'server services' smb.conf parameter). This service was unused and has
now been removed from Samba.
smb.conf changes
================
Parameter Name Description Default
-------------- ----------- -------
web port Removed
KNOWN ISSUES
============
https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.11#Release_blocking_bugs
#######################################
Reporting bugs & Development Discussion
#######################################
Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.
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 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).
======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================
|
