Samba 4.1.0

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News del 17 Ottobre 13 Autore: Gianplugged
Samba 4.1.0
Samba è un software open source che permette di ottenere interoperabilità tra Linux, Unix, Mac OS X e Windows.

Note di rilascio:

This is is the first stable release of Samba 4.1.

Samba 4.1 will be the next version of the Samba suite and includesall the technology found in both the Samba4 series and the stable 3.xseries. The primary additional features over Samba 3.6 aresupport for the Active Directory logon protocols used by Windows 2000and above.

Major enhancements in Samba 4.1.0 include:

Client tools support SMB2/3

Samba 4.1.0 contains the first release of our client toolsand client library that work over the new protocols SMB2 or SMB3.Note that SMB3 only works either to a Samba server version 4.0.0or above, or to a Windows Server running Windows 2012 or Windows 8.

The default protocol for smbclient and smbcacls is stillSMB1 (the NT1 protocol dialect). An SMB2 or SMB3 connectioncan be selected in one of two ways. The easiest way to testthe new protocol connection is to add the -mMAX_PROTOCOLcommand line switch to either smbclient or smbcacls.

For example, to connect using SMB3 with smbclient a userwould type:

smbclient //server/share -Uuser%password -mSMB3

Another example of connecting using SMB2 using smbcaclswould be:

smbcacls //server/share -Uuser%password -mSMB2 filename

Note that when connecting using SMB2 or SMB3 protocolsthe UNIX extensions are no longer available inside thesmbclient command set. This is due to UNIX extensionsnot yet being defined for the SMB2 or SMB3 protocols.

The second way to select SMB2 or SMB3 connections is toset the "client max protocol" parameter in the [global]section of your smb.conf.

Setting this parameter will cause all client connectionsfrom Samba and its client tools to offer the requestedmax protocol to a server on every connection request.

For example, to cause all client tools (including winbindd,rpcclient, and the libsmbclient library) to attempt use SMB3by default add the line:

client max protocol = SMB3

to the [global] section of your smb.conf. This has notbeen as widely tested as the -mPROTOCOL options, butis intended to work correctly in the final release of4.1.0.

Encrypted transport

Although Samba servers have supported encrypted transportconnections using the UNIX extensions for many years,selecting SMB3 transport allows encrypted transportconnections to Windows servers that support SMB3, aswell as Samba servers.

In order to enable this, add the "-e" option to thesmbclient command line.

For example, to connect to a Windows 2012 server overSMB3 and select an encrypted transport you would usethe following command line:

smbclient //Win2012Server/share -Uuser%password -mSMB3 -e

Directory database replication (AD DC mode)

Directory replication has been reworked in order to improve thecorrectness and efficiency.
As a net effect of it, replication with other domain controllers witha heavily modified schema is now possible (ie. Windows 2012 DCs orother Windows DC with exchange installed) and replication didn´t failanymore in such environments.

Server-Side Copy Support

Samba 4.1.0 adds support for server-side copy operations via the SMB2FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copysupport, such as Windows Server 2012, should experience considerableperformance improvements for file copy operations, as file data need nottraverse the network.
This feature is enabled by default on the smbd file server.

Btrfs Filesystem Integration

The Btrfs VFS module provided with Samba 4.1.0 further improves theperformance of server-side copy operations on shares backed by a Btrfsfilesystem. It does so by allowing multiple files to share the sameon-disk extents, avoiding the unnecessary duplication of source anddestination file data during a server-side copy operation.

This feature can be explicitly enabled on smbd shares backed by a Btrfsfilesystem with the smb.conf parameter:
vfs objects = btrfs


The Samba Web Administration Tool (SWAT) has been removed.Details why SWAT has been removed can be found on the samba-technical mailinglist:
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Categoria: Linux

Licenza: Open source

OS: Linux

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