What is the risk of turning off mount-rootonly NFS option?
Applies to
- ONTAP 9
- NFSv3
Answer
- There are no risks, it just increases the allowed source ports range for NFS mount
- TR-4067
- NFS mounts generate a source port on the client.
- By default, ONTAP sets the range of allowed source ports between 1–1024 (-mount-rootonly).
- In some cases, this range of port numbers might not be large enough to accommodate the number of clients that are mounting.
- If more source port numbers are needed, set -mount-rootonly to Disabled and modify the firewall rules to accommodate that change.