Hello,

I'm trying to better understand the nuances between NFS Export and POSIX permissions, and how the configuring of Export Client types (e.g., Root, Read Only, and Read Write Clients) might impact access to data.

If I have a NFS Export which has a Read Write Client configured (IP: 1.2.3.4) that is not connecting to the configured path as the path's owner or group member, could this Client still access the Export path with these read+write permissions? Also, if there are files maintained in the path that are chmod'ed to 640 (-rw-r-----), would the POSIX permissions be the authoritative permissions and block the ability for the Client to read content (given other users do not have the POSIX read permission), or would the fact that the client is a "Read Write Client" permit it to read/modify those files, even though the POSIX permissions would not technically permit that?

Thank you in advance for your help!