Release Notes for SMB Service

SMB Service is an easy-to-use file service management tool, allowing you to manage general settings related to the SMB/CIFS file sharing service. Through SMB Service, Windows, macOS, and Linux users can access your Synology NAS from the network once you have enabled the SMB service option in Control Panel.

Version: 4.10.18-0547


(2022-10-25)

Fixed Issues

  1. Fixed an issue where users could not join their computers to Synology Directory Server after updating OS to Windows 11 22H2.
  2. Fixed an issue where exporting system configuration backup file might fail.

Version: 4.10.18-0545


(2022-09-05)

Fixed Issues

  1. Minor bug fixes.

Version: 4.10.18-0542


(2022-08-10)

Compatibility & Installation

  1. SMB Service 4.10.18-0542 requires DSM 7.1.1 or above.

Fixed Issues

  1. Fixed an issue where enumerating the file list using Finder on Mac is slow if the device has joined an LDAP server on an external network.
  2. Fixed an issue where copying files to other directories in the same shared folder using Finder on Mac is slow.
  3. Fixed an issue where some files could not be copied, moved, or deleted via Windows File Explorer.
  4. Fixed an issue where disabled SMB Service was automatically enabled after updating DSM.
  5. Minor bug fixes.

Version: 4.10.18-0329


(2022-05-18)

Compatibility & Installation

  1. Updated to be compatible with DSM 7.0.1 Update 4. SMB 4.10.18-0329 requires DSM 7.0.1 Update 4 or above.

Version: 4.10.18-0434


(2022-04-27)

Compatibility & Installation

  1. Updated to be compatible with DSM 7.1 Update 1. SMB 4.10.18-0434 requires DSM 7.1 Update 1 or above.

Version: 4.10.18-0433


(2022-04-08)

Fixed Issues

  1. Fixed an issue where domain user privileges in nested domain groups may be abnormal.

Version: 4.10.18-0432


(2022-04-06)

Fixed Issues

  1. Fixed an issue where adding a Synology NAS with no volumes to a domain server and then creating a volume would make domain users unable to sign in to DSM.

Version: 4.10.18-0431


(2022-03-24)

Fixed Issues

  1. Fixed an issue where some files could not be read if asynchronous read has been enabled.
  2. Fixed an issue where compacting VHDX disks might fail when backing up via Windows Server Backup.
  3. Fixed an issue where using Adobe Bridge to rate color-tagged files on macOS might fail.
  4. Fixed a security vulnerability regarding Samba (CVE-2020-25717).

Version: 4.10.18-0327


(2022-02-24)

Fixed Issues

  1. Fixed an issue where domain users may be unable to connect to the SMB by using NTLM authentication when the Synology NAS is used as a domain server.
  2. Fixed an issue where searching through data on Synology NAS via Windows Explorer might cause SMB service to consume excessive memory.
  3. Fixed an issue where browsing photos stored on Synology NAS via Windows Photo Viewer might cause the application to shut down unexpectedly.
  4. Fixed an issue where searching via Windows Explorer failed to find items whose type was a folder.
  5. Fixed an issue where LDAP users could not sign in to SMB connections.
  6. Fixed an issue where enabling the "VFS module to convert Mac special characters" function might make Synology NAS files not modifiable.
  7. Fixed a security vulnerability regarding Samba (CVE-2020-25717).
  8. Minor bug fixes.

Version: 4.10.18-0417


(2022-02-17)

Compatibility & Installation

  1. SMB Service 4.10.18-0415 requires DSM 7.1 or versions above.

What's New

  1. Added the SMB aggregation portal function, which allows accessing shared folders on multiple Synology NAS via one single SMB portal on a personal computer. This function replaces the "MSDFS VFS module" function in SMB Advanced Settings.
  2. Added support in Advanced Settings for monitoring changes in subfolders within a directory.
  3. Added support in Advanced Settings for synchronizing data to the drive immediately upon receiving SMB client requests.
  4. Added support to log failed connections due to application privileges.

Fixed Issues

  1. Fixed an issue where connected shared folders on Windows became inaccessible after being restored via Snapshot Replication.
  2. Fixed an issue where enabling the "VFS module to convert Mac special characters" function might make Synology NAS files not modifiable.
  3. Fixed an issue where users could not create new folders or files inside folders that were found as results of Windows Explorer searches.
  4. Fixed an issue where searching via Windows Explorer failed to find items whose type was a folder.
  5. Fixed a security vulnerability regarding Samba (CVE-2021-20254).
  6. Minor bug fixes.

Version: 4.10.18-0326


(2022-02-15)

Important notes

  1. This update was recalled on February 16, 2022, because domain users may be unable to connect to the SMB by using NTLM authentication when the Synology NAS is used as a domain server. The issue is fixed in version 4.10.18-0327.

Version: 4.10.18-0316


(2021-10-21)

Fixed Issues

  1. Fixed an issue where domain users might not be able to sign in to SMB.

Version: 4.10.18-0315


(2021-09-28)

Fixed Issues

  1. Fixed an issue where incorrect time is displayed for indexed data on J and Value series when searching via Windows Search.
  2. Fixed an issue where backing up files from one Synology NAS to other servers using Veritas Backup Exec might fail.

Version: 4.10.18-0310


(2021-08-31)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where SMB authentication may fail for domain users after enabling SMB application privileges.
  2. Fixed an issue where using VFS module to convert Mac special characters may not work properly when converting invalid characters.
  3. Fixed an issue where downloading files via Windows might fail when the user has read-only access to the file.

Version: 4.10.18-0223


(2021-07-19)

Fixed Issues

  1. Fixed an issue where the full name of domain groups were not updated correctly.

Version: 4.10.18-0222


(2021-06-29)

Fixed Issues

  1. Fixed an issue where the domain administrator cannot properly create replication tasks in Snapshot Replication.
  2. Fixed an issue where open files via SMB may take longer.

Version: 4.10.18-0220


(2021-06-01)

What's New

  1. Modularized the SMB file service into a package.
  2. Separated NTLMv1 authentication into an independent option.
  3. Added support for cross-protocol locking between SMB and AFP.
  4. Allows users to enable or disable SMB transfer logs for permission changes, providing more flexible transfer logs.
  5. Enhanced the encryption performance by up to 10% on certain models with the x86 platform.
  6. In Windows File Explorer, users can now search for the files and their content in indexed folders.
  7. Added support for asynchronous read.
  8. The default minimum SMB protocol is changed from SMB1 to SMB2 after reinstalling DSM.
  9. Added support for logging failed SMB1 and NTLMv1 login attempts.

Compatibility and Installation

  1. If Transfer Log was disabled in DSM 6.2, it will be automatically enabled after the update. To better track and record data operations, "Delete" operations are automatically selected by default.

Version: 4.10.18-0547


(2022-10-25)

Fixed Issues

  1. Fixed an issue where users could not join their computers to Synology Directory Server after updating OS to Windows 11 22H2.
  2. Fixed an issue where exporting system configuration backup file might fail.

Version: 4.10.18-0545


(2022-09-05)

Fixed Issues

  1. Minor bug fixes.

Version: 4.10.18-0542


(2022-08-10)

Compatibility & Installation

  1. SMB Service 4.10.18-0542 requires DSM 7.1.1 or above.

Fixed Issues

  1. Fixed an issue where enumerating the file list using Finder on Mac is slow if the device has joined an LDAP server on an external network.
  2. Fixed an issue where copying files to other directories in the same shared folder using Finder on Mac is slow.
  3. Fixed an issue where some files could not be copied, moved, or deleted via Windows File Explorer.
  4. Fixed an issue where disabled SMB Service was automatically enabled after updating DSM.
  5. Minor bug fixes.

Version: 4.10.18-0329


(2022-05-18)

Compatibility & Installation

  1. Updated to be compatible with DSM 7.0.1 Update 4. SMB 4.10.18-0329 requires DSM 7.0.1 Update 4 or above.

Version: 4.10.18-0434


(2022-04-27)

Compatibility & Installation

  1. Updated to be compatible with DSM 7.1 Update 1. SMB 4.10.18-0434 requires DSM 7.1 Update 1 or above.

Version: 4.10.18-0433


(2022-04-08)

Fixed Issues

  1. Fixed an issue where domain user privileges in nested domain groups may be abnormal.

Version: 4.10.18-0432


(2022-04-06)

Fixed Issues

  1. Fixed an issue where adding a Synology NAS with no volumes to a domain server and then creating a volume would make domain users unable to sign in to DSM.

Version: 4.10.18-0431


(2022-03-24)

Fixed Issues

  1. Fixed an issue where some files could not be read if asynchronous read has been enabled.
  2. Fixed an issue where compacting VHDX disks might fail when backing up via Windows Server Backup.
  3. Fixed an issue where using Adobe Bridge to rate color-tagged files on macOS might fail.
  4. Fixed a security vulnerability regarding Samba (CVE-2020-25717).

Version: 4.10.18-0327


(2022-02-24)

Fixed Issues

  1. Fixed an issue where domain users may be unable to connect to the SMB by using NTLM authentication when the Synology NAS is used as a domain server.
  2. Fixed an issue where searching through data on Synology NAS via Windows Explorer might cause SMB service to consume excessive memory.
  3. Fixed an issue where browsing photos stored on Synology NAS via Windows Photo Viewer might cause the application to shut down unexpectedly.
  4. Fixed an issue where searching via Windows Explorer failed to find items whose type was a folder.
  5. Fixed an issue where LDAP users could not sign in to SMB connections.
  6. Fixed an issue where enabling the "VFS module to convert Mac special characters" function might make Synology NAS files not modifiable.
  7. Fixed a security vulnerability regarding Samba (CVE-2020-25717).
  8. Minor bug fixes.

Version: 4.10.18-0417


(2022-02-17)

Compatibility & Installation

  1. SMB Service 4.10.18-0415 requires DSM 7.1 or versions above.

What's New

  1. Added the SMB aggregation portal function, which allows accessing shared folders on multiple Synology NAS via one single SMB portal on a personal computer. This function replaces the "MSDFS VFS module" function in SMB Advanced Settings.
  2. Added support in Advanced Settings for monitoring changes in subfolders within a directory.
  3. Added support in Advanced Settings for synchronizing data to the drive immediately upon receiving SMB client requests.
  4. Added support to log failed connections due to application privileges.

Fixed Issues

  1. Fixed an issue where connected shared folders on Windows became inaccessible after being restored via Snapshot Replication.
  2. Fixed an issue where enabling the "VFS module to convert Mac special characters" function might make Synology NAS files not modifiable.
  3. Fixed an issue where users could not create new folders or files inside folders that were found as results of Windows Explorer searches.
  4. Fixed an issue where searching via Windows Explorer failed to find items whose type was a folder.
  5. Fixed a security vulnerability regarding Samba (CVE-2021-20254).
  6. Minor bug fixes.

Version: 4.10.18-0326


(2022-02-15)

Important notes

  1. This update was recalled on February 16, 2022, because domain users may be unable to connect to the SMB by using NTLM authentication when the Synology NAS is used as a domain server. The issue is fixed in version 4.10.18-0327.

Version: 4.10.18-0316


(2021-10-21)

Fixed Issues

  1. Fixed an issue where domain users might not be able to sign in to SMB.

Version: 4.10.18-0315


(2021-09-28)

Fixed Issues

  1. Fixed an issue where incorrect time is displayed for indexed data on J and Value series when searching via Windows Search.
  2. Fixed an issue where backing up files from one Synology NAS to other servers using Veritas Backup Exec might fail.

Version: 4.10.18-0310


(2021-08-31)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where SMB authentication may fail for domain users after enabling SMB application privileges.
  2. Fixed an issue where using VFS module to convert Mac special characters may not work properly when converting invalid characters.
  3. Fixed an issue where downloading files via Windows might fail when the user has read-only access to the file.

Version: 4.10.18-0223


(2021-07-19)

Fixed Issues

  1. Fixed an issue where the full name of domain groups were not updated correctly.

Version: 4.10.18-0222


(2021-06-29)

Fixed Issues

  1. Fixed an issue where the domain administrator cannot properly create replication tasks in Snapshot Replication.
  2. Fixed an issue where open files via SMB may take longer.

Version: 4.10.18-0220


(2021-06-01)

What's New

  1. Modularized the SMB file service into a package.
  2. Separated NTLMv1 authentication into an independent option.
  3. Added support for cross-protocol locking between SMB and AFP.
  4. Allows users to enable or disable SMB transfer logs for permission changes, providing more flexible transfer logs.
  5. Enhanced the encryption performance by up to 10% on certain models with the x86 platform.
  6. In Windows File Explorer, users can now search for the files and their content in indexed folders.
  7. Added support for asynchronous read.
  8. The default minimum SMB protocol is changed from SMB1 to SMB2 after reinstalling DSM.
  9. Added support for logging failed SMB1 and NTLMv1 login attempts.

Compatibility and Installation

  1. If Transfer Log was disabled in DSM 6.2, it will be automatically enabled after the update. To better track and record data operations, "Delete" operations are automatically selected by default.