root_squash is default in NFS server

surya_b4u · 08-07-2007, 07:06 AM

hi all

i'm newbie to redhatlinux

Q: why root_squash is default in nfs server?

plz answer to my question

Thankyou
suresh

w3bd3vil · 08-07-2007, 09:17 AM

root_squash - Requests from root clients are mapped to the nobody user and group ID so they will only have file privileges associated with other.

devendrakoli · 07-10-2010, 01:30 PM

Hi Suresh,

The normal behaviour of a user is that he can access his files on the NFS Server just as he would
access on a normal filesystem (ie local server & not NFS Server)

So it is not desirable that the root user on a client machine is also treated as root when
accessing files which are mounted by the NFS Server.

Hence uid 0 is normally mapped to a different ID ie nobody uid. This mode of operation is called
as root squashing

Regards,
Devendra Koli