Re: file :"/var/lib/nfs/rmtab"

[James Pearson <james-p@moving-picture.com>]

What version of nfs-utils are you running?

I've just tried (on a 2.6 kernel Fedora box):

mount -t nfsd nfsd /proc/fs/nfsd
/etc/init.d/nfs start

mount an exported file system on a client

edit /var/lib/nfs/rmtab and removed the line corresponding to the client

/etc/init.d/nfs stop
/etc/init.d/nfs start

Accessed the mount point on the client - no stale handle ...

... and the deleted line 'magically' reappears in /var/lib/nfs/rmtab

James Pearson

mehta kiran wrote:
> hi James , 
>         it did not help.
>         Enmtry in rmtab file is still used.
> thanks for ur reply,
>       kiran
> 
> --- James Pearson <james-p@moving-picture.com> wrote:
> 
> 
>>Did you do 'mount -t nfsd nfsd /proc/fs/nfsd' before
>>starting all the 
>>nfs daemons?
>>
>>James Pearson
>>
>>mehta kiran wrote:
>>
>>>I am using 2.6 kernel
>>>--- mehta kiran <kiranmehta1981@yahoo.com> wrote:
>>>
>>>
>>>
>>>>Hi , 
>>>>        if handle supplied by client is
>>
>>sufficient
>>
>>>>,
>>>>then why does the problem given below exists.
>>>>
>>>>1. export filesystem to client.
>>>>2. let client allow to mount it.
>>>>3. remove all entries from rmtab on server.
>>>>4. restart all nfs daemons.
>>>>5. Now if client access filesystem , it gets
>>>>  permission denied error.Client can access
>>>>  filesystem only after remounting it.
>>>>6. This show that mountd still uses rmtab to
>>>>  check if client had mounted filesystem or not.
>>>>  No entry in rmtab for a client means it has not
>>>>  mounted filesystem.
>>>>
>>>>thanks,
>>>>--kiran
>>>>
>>>>--- Paul Clements <paul.clements@steeleye.com>
>>>>wrote:
>>>>
>>>>
>>>>
>>>>>mehta kiran wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Isn't handle supplied by client
>>>>>>         enough to verify clients access to
>>>>>>         filesystem.?
>>>>>
>>>>>Yes, it should be. That's why in 2.6, the rmtab
>>>>
>>>>file
>>>>
>>>>
>>>>>is no longer relied 
>>>>>upon. Instead, there is a special filesystem,
>>>>>/proc/fs/nfsd, that allows 
>>>>>the kernel to communicate with mountd in order to
>>>>>authenticate 
>>>>>unrecognized clients automatically.
>>>>>
>>>>>--
>>>>>Paul
>>>>>
>>>>>
>>>>>
>>>>
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