Samba is the Linux subsystem that allows it to work with SMB networking - i.e. Windows file sharing.
This is the first stable release of the Samba 4.5 release series.
NTLMv1 authentication disabled by default
In order to improve security we have changed the default value for the "ntlm auth" option from "yes" to "no". This may have impact on very old clients which doesn't support NTLMv2 yet. The primary user of NTLMv1 is MSCHAPv2 for VPNs and 802.1x. By default, Samba will only allow NTLMv2 via NTLMSSP now, as we have the following default "lanman auth = no", "ntlm auth = no" and "raw NTLMv2 auth = no".
Support for LDAP_SERVER_NOTIFICATION_OID
The ldap server has support for the LDAP_SERVER_NOTIFICATION_OID control. This can be used to monitor the Active Directory database for changes.
KCC improvements for sparse network replication
The Samba KCC will now be the default knowledge consistency checker in Samba AD. Instead of using full mesh replication between every DC, the KCC will set up connections to optimize replication latency and cost (using site links to calculate the routes). This change should allow larger domains to function significantly better in terms of replication traffic and the time spent performing DRS replication.
VLV - Virtual List View
The VLV Control allows applications to page the LDAP directory in the way you might expect a live phone book application to operate, without first downloading the entire directory.
DRS Replication for the AD DC
DRS Replication in Samba 4.5 is now much more efficient in handling linked attributes, particularly in large domains with over 1000 group memberships or other links. Replication is also much more reliable in the handling of tree renames, such as the rename of an organizational unit containing many users. Extensive tests have been added to ensure this code remains reliable, particularly in the case of conflicts between objects added with the same name on different servers. Schema updates are also handled much more reliably.
samba-tool drs replicate with new options
'samba-tool drs replicate' got two new options: The option '--local-online' will do the DsReplicaSync() via IRPC to the local dreplsrv service. The option '--async-op' will add DRSUAPI_DRS_ASYNC_OP to the DsReplicaSync(), which won't wait for the replication result.
replPropertyMetaData Changes
During the development of the DRS replication, tests showed that Samba stores the replPropertyMetaData object incorrectly. To address this, be aware that 'dbcheck' will now detect and offer to fix all objects in the domain for this error.
Linked attributes on deleted objects
In Active Directory, an object that has been tombstoned or recycled has no linked attributes. However, Samba incorrectly maintained such links, slowing replication and run-time performance. 'dbcheck' now offers to remove such links, and they are no longer kept after the object is tombstoned or recycled.
Improved AD DC performance
Many other improvements have been made to our LDAP database layer in the AD DC, to improve performance, both during 'samba-tool domain provision' and at runtime.
The GNOME Linux desktop is available in a new release.
The GNOME Project is proud to announce the release of GNOME 3.22, "Karlsruhe".
This release brings comprehensive Flatpak support. GNOME Software can install and update Flatpaks, GNOME Builder can create them, and the desktop provides portal implementations to enable sandboxed applications. Improvements to core GNOME applications include support for batch renaming in Files, sharing support in GNOME Photos, an updated look for GNOME Software, a redesigned keyboard settings panel, and many more.
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