cmFileFSPassword is a read-write display string holding the FTP password paired with cmFileFSUsername for authenticating to the remote file server, and the description notes it always reads back as '****' to avoid exposing the plaintext value over SNMP. An administrator sets it once when configuring file-server access and relies on the masked readback purely to confirm a value has been set, not to verify its contents. For example, after setting cmFileFSPassword the operator would test an actual file transfer to confirm the credential works, since a GET will only ever show asterisks.