I Guess I Don't Understand NFS As Well As I Thought

[Doug Hardie]

On 24 November 2012, at 12:32, Tim Daneliuk wrote:

> Can someone kindly explain what is going on here:
> 
> Machine A:  FreeBSD - was running 8, just upgraded to 9.1-PRE
>            (I don't recall seeing the behavior described below
>             in V8, but then, I don't think I ever tried it).
> 
> Machine B:  Linux Mint Desktop
> 
> - Machine A acts as an NFS server for Machine B.
> 
> - Machine A exports a particular directory like this:
> 
>   /usr/foo  -maproot=myid     -network ...
> 
> 
> - /usr/foo/bar is owned by root on Machine A and has files therein
>  owned as root:root with permissions of 600.
> 
> - If I access /usr/foo/bar/file1 from Machine B, I cannot read it
>  but - and this is the part I don't get - I CAN *rename* it.
> 
> What's going on?  Since /foo/bar/ is owned by root and everything
> in it is 600 root:root, I would not expect a remote access to allow
> things like renaming.  Clearly I am missing something here, but I
> don't get it.

What are the permissions on the directory /usr/foo/bar?