Setup guide

QNAP NFS setup (QTS / QuTS hero)

Enable the NFS service, grant NFS host access to your subnet, and set the squash option. The export path is the odd part — read that bit.

1. Turn on NFS

Control Panel → Network & File Services → Win/Mac/NFS/WebDAV → NFS Service → tick Enable NFS. QNAP serves NFSv3 and v4 together; leave the versions alone.

2. Grant access to the shared folder

Control Panel → Privilege → Shared Folders → select the folder → Edit Shared Folder Permission → NFS host access (or: right-click the folder → NFS host access, depending on firmware):

• Add your subnet (e.g. 192.168.1.0/24) — or a single device IP — and tick it.
• Access right: read/write (read-only gives the share is read-only).
• Squash option: all_squash, with Anonymous UID/GID set to the user that owns the share’s files. Then the UID in the app is irrelevant and access denied goes away.
• QNAP’s NFS server allows non-privileged ports by default — if you see the server refused this device on a QNAP, suspect the host-access list first, not ports.

3. What to type in NFS Files

QNAP export paths are the fiddly bit. The real path is something like /share/CACHEDEV1_DATA/Public — tap Find Shared Folders in the app and pick from the list rather than guessing. (Many QNAP models also accept the short form /Public; if the long form fails, try the short one, and vice versa.)

Host: the NAS’s IP. Reserve it in the router’s DHCP so it doesn’t drift.

4. Check your work

Inspect Server on the server card: green Read/Write badges mean you’re done. Red Write with all_squash set means the anonymous UID doesn’t own the folder’s files — fix ownership in File Station (right-click → Properties) or match the anonymous UID to the owner.