Event ID 8257 — Windows to UNIX Password Synchronization Service -- Run-time Issues

Applies To: Windows Server 2008 R2

Windows to UNIX Password Synchronization Service -- Run-time Issues indicates the functionality of Windows to UNIX password synchronization operations.

When Password Synchronization is configured for Windows-to-UNIX synchronization, and a password is changed on a Windows-based computer running Password Synchronization, the Password Synchronization service determines whether the user's password is to be synchronized on UNIX computers. When the Password Synchronization service is operating normally, it encrypts the password and sends it to the Password Synchronization daemon on each computer with which the Windows-based computer is configured to be synchronized. The daemon then decrypts the password and changes the password on the UNIX host.

Event Details

Product: Windows Identity Management for UNIX
ID: 8257
Source: Microsoft-Windows-IDMU-PSync
Version: 6.0
Message: Error receiving data from a UNIX host. Error = %1


Retry the password change

A generic error occurred in the Password Synchronization service. Repeat the password change operation, and if that fails, restart the Windows-based computer on which Password Synchronization is installed.

Restarting the computer is typically required because the Password Synchronization dynamic link library (DLL) is loaded by the Local Security Authority Subsystem Service (LSASS) at system startup. Therefore, the effective method of reloading the Password Synchronization DLL is to restart LSASS, which is done by restarting the computer.

To restart the computer:

  • To restart the computer, click Start, click the arrow next to the Lock button, and then click Restart.


Retry Windows to UNIX password synchronization for failed user password changes to verify that it is operational. Password Synchronization is fully operational when the password synchronization succeeds, and operating under warning conditions if password synchronization fails for some passwords but succeeds for others.

If password synchronization succeeds for some passwords but fails for others, the Windows to UNIX Password Synchronization Service is likely fully operational, but there might be account- or computer-specific configuration problems preventing password changes from being synchronized on UNIX-based hosts.

Windows to UNIX Password Synchronization Service -- Run-time Issues

Identity Management for UNIX