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Document the --backend-store-size option added to the samba-tool sub commands: * domain provision * domain join * domain dcpromo * drs clone-dc-database And the removal os the join subdomain option. Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Autobuild-User(master): Gary Lockyer <gary@samba.org> Autobuild-Date(master): Tue Jul 2 04:19:29 UTC 2019 on sn-devel-184
158 lines
5.2 KiB
Plaintext
158 lines
5.2 KiB
Plaintext
Release Announcements
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=====================
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This is the first preview release of Samba 4.11. This is *not*
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intended for production environments and is designed for testing
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purposes only. Please report any defects via the Samba bug reporting
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system at https://bugzilla.samba.org/.
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Samba 4.11 will be the next version of the Samba suite.
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UPGRADING
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=========
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NEW FEATURES/CHANGES
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====================
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Default samba process model
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---------------------------
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The default for the --model argument passed to the samba executable has changed
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from 'standard' to 'prefork'. This means a difference in the number of samba
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child processes that are created to handle client connections. The previous
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default would create a separate process for every LDAP or NETLOGON client
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connection. For a network with a lot of persistent client connections, this
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could result in significant memory overhead. Now, with the new default of
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'prefork', the LDAP, NETLOGON, and KDC services will create a fixed number of
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worker processes at startup and share the client connections amongst these
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workers. The number of worker processes can be configured by the 'prefork
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children' setting in the smb.conf (the default is 4).
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Authentication Logging.
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-----------------------
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Winbind now logs PAM_AUTH and NTLM_AUTH events, a new attribute "logonId" has
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been added to the Authentication JSON log messages. This contains a random
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logon id that is generated for each PAM_AUTH and NTLM_AUTH request and is passed
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to SamLogon, linking the windbind and SamLogon requests.
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The serviceDescription of the messages is set to "winbind", the authDescription
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is set to one of:
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"PASSDB, <command>, <pid>"
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"PAM_AUTH, <command>, <pid>"
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"NTLM_AUTH, <command>, <pid>"
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where:
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<command> is the name of the command makinmg the winbind request i.e. wbinfo
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<pid> is the process id of the requesting process.
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The version of the JSON Authentication messages has been changed to 1.2 from 1.1
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Reindex performance improvements
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--------------------------------
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The performance of samba-tool dbcheck --reindex has been improved, especially
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for large domains.
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LDAP referrals
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--------------
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The scheme of returned LDAP referrals now reflects the scheme of the original
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request, i.e. referrals received via ldap are prefixed with "ldap://"
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and those over ldaps are prefixed with "ldaps://"
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Previously all referrals were prefixed with "ldap://"
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Bind9 logging
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-------------
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It is now possible to log the duration of DNS operations performed by Bind9
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This should aid future diagnosis of performance issues, and could be used to
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monitor DNS performance. The logging is enabled by setting log level to
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"dns:10" in smb.conf
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The logs are currently Human readable text only, i.e. no JSON formatted output.
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Log lines are of the form:
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<function>: DNS timing: result: [<result>] duration: (<duration>)
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zone: [<zone>] name: [<name>] data: [<data>]
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durations are in microseconds.
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Default schema updated to 2012_R2
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-------------------------
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Default AD schema changed from 2008_R2 to 2012_R2. 2012_R2 functional level
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is not yet available. Older schemas can be used by provisioning with the
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'--base-schema' argument. Existing installations can be updated with the
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samba-tool command "domain schemaupgrade".
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Setting lmdb map size
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---------------------
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It is now possible to set the lmdb map size (The maximum permitted size for
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the database). "samba-tool" now accepts the "--backend-store-size"
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i.e. --backend-store-size=4Gb. If not specified it defaults to 8Gb.
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This option is avaiable for the following sub commands:
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* domain provision
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* domain join
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* domain dcpromo
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* drs clone-dc-database
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REMOVED FEATURES
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================
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Web server
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----------
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As a leftover from work related to the Samba Web Administration Tool (SWAT),
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Samba still supported a Python WSGI web server (which could still be turned on
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from the 'server services' smb.conf parameter). This service was unused and has
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now been removed from Samba.
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samba-tool join subdommain
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--------------------------
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The subdommain role has been removed from the join command. This option did
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not work and has no tests.
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smb.conf changes
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================
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Parameter Name Description Default
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-------------- ----------- -------
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web port Removed
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fruit:zero_file_id Changed default False
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KNOWN ISSUES
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============
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https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.11#Release_blocking_bugs
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#######################################
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Reporting bugs & Development Discussion
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#######################################
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Please discuss this release on the samba-technical mailing list or by
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joining the #samba-technical IRC channel on irc.freenode.net.
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If you do report problems then please try to send high quality
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feedback. If you don't provide vital information to help us track down
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the problem then you will probably be ignored. All bug reports should
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be filed under the Samba 4.1 and newer product in the project's Bugzilla
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database (https://bugzilla.samba.org/).
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======================================================================
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== Our Code, Our Bugs, Our Responsibility.
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== The Samba Team
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======================================================================
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