I have a Synology DiskStation providing file services to my home and lab networks. It works great as-is for SMB access, but NFS access was problematic because the automatic UID / GID generation didn't match the IDs used by my Linux systems. Since I already store Unix attributes in Active Directory, I needed the DiskStation to respect those.

I run Active Directory to manage my users and groups. Most of my servers run Linux, and I also run a Synology DiskStation that serves files via NFS and CIFS. To keep file permissions and ownership consistent, I assign static UID and GID values to my Active Directory users and groups. Rather than manually assigning UID and GID values, I created a PowerShell script to do it for me.