block root access to NFS mount

[Mark Haney]

Jeff Vian wrote:
> On Mon, 2006-09-11 at 14:28 -0400, Mark Haney wrote:
>   
>> Okay, here's a problem I'm running in to.  I have an NFS server that is 
>> controlled via NIS for which hosts access the NFS mounts.  I need to 
>> give root access to an NFS client host machine, but /not/ the NFS 
>> mounts.  Is there any way at all to control this, other than making the 
>> NFS mounts read only?
>>
>> (Yeah I know it's a strange question, but time is pressing and I don't 
>> have enough of it to google.)  Any help would be appreciated.
>>
>>     
>
> By default NFS maps root to nobody.  Only if the no_root_squash option
> is used when exported does root from the client have root privileges on
> the nfs filesystem.
>
> Often this also means that root may not even access the nfs filesystem
> at all.
>
> HTH
> "man exports" will give more info, specifically in in the User ID
> Mapping section.
>
>   
> Let me see if I understand you, if I don't have 'no_root_squash' in my 
> /etc/exports file for a particular NFS share, then if I am root on the 
> /client/ I cannot access that NFS mount?  If so, that's exactly what 
> I"m looking for.




-- 
Ceterum censeo, Carthago delenda est.

Mark Haney
Sr. Systems Administrator
ERC Broadband
(828) 350-2415