Windows Server Backup SMB1 vs SMB2

I am backing up the System State of a Domain Controller running Server 2012 R2 to a Synology NAS running Samba 3.6.9 (out of date, but it comes with the distribution).

When using SMB1 on the Synology NAS, the backup succeeds and authenticates as the user performing the backup (either the configured Domain User account with appropriate rights, or interactively with my account as a Domain Admin). However, when SMB2 is enabled on the Synology NAS, it appears as if the Computer Account, rather than the interactive Domain Admin account is attempting to read/write to the Samba share on the NAS.

From my understanding, Samba does not support adding Computer Accounts (COMPUTER$) to share security.

Why am I seeing this behavior difference from Windows Server? This also existed with Server 2012.

Trevor Seward

This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.