From: Gunter Windau (gunter@mbfys.kun.nl)
Date: 04/01/93


From: gunter@mbfys.kun.nl (Gunter Windau)
Subject: Re: NFS: can it be write for root?
Date: Thu, 1 Apr 1993 10:41:07 GMT

gthomas@fraser.sfu.ca (Guy Thomas) writes:

>I have NFS mounted several directories from a NeXT to the Linux box.

>For ordinary users they write and read fine. I have tried to
>configure the mount so that root can write to the mounted directories
>as well

>mount -w host:/export/directory /mount/point

"-w" should not be needed as it's the default.

>In the /etc/exports file on the NeXT is

>/export/directory -rw=deer -access=linux-host -root=linux-host

On the Ultrix systems at the dept. here /etc/exports entries
look like this:

/home7 -r=0 severus avitus

"-r=0" means that users on hosts severus and avitus with uid=0 have root
privileges on the mounted filesystem. Default is "-r=2" which is the uid
for "nobody", so in effect no user has root privileges on the
filesystem.
But this is Bugtrix :-) and not NeXT, so it may behave differently.

>The mount does not seem to recognize that root can have access.
>Is this an artifact of the NeXT implementation of NFS or of the
>mount on Linux?

>Any hints welcome.

I suggest reading the manual page of exports(5)

G\"unter