Re: [vserver] Mounting NFS(v4) with vserver guest's own IP address

Herbert Poetzl wrote:
> On Tue, Jan 22, 2008 at 12:06:34PM +0100, Mark Hunting wrote:
>>
>> >> Hello list,
>> >>
>> >> I am using several vserver guests on a single machine. These vserver
>> >> guests must be able to access different NFSv4 exports on my NFS
>> server.
>> >> Normally I write in /etc/exports on my NFS server which clients (IP
>> >> addresses) have access to which NFS exports. But now the problem: the
>> >> vserver guests all use the host's primary IP address, not their 'own'
>> >> secondary one. All mounts are coming from the same IP address, so I
>> >> can't filter on IP address in my exports file.
>> >>
>> >> Is there a way to create the NFS mounts using a vserver guest's IP
>> >> address? I found the clientaddr option on the mount man page, but
>> that
>> >> doesn't do what I'm looking for unfortunately.
>> >>
>> >> I am using Debian Etch, kernel 2.6.18-5-amd64.
>> >>
>> >> Many thanks,
>> >> Mark
>> >>
>> >>
>> > fstab.remote may help you here..
>> >
>> > http://linux-vserver.org/Frequently_Asked_Questions#How_do_I_handle_NFS_mounts_within_in_a_guest.3F
>> >
>> >
>> > Cheers
>> > Martin
>> >
>> Thanks for your answer Martin. In fact I already use fstab.remote, but
>> how do I use it to create the NFS mount from the Vserver guest's IP
>> address? It now just uses the Vserver host's primary IP address.
>
> hmm, IIRC, the purpose of fstab.remote was to have something
> which is done from withing the guest's network namespace,
> so I would assume that it already uses the guest IPs, but
> maybe daniel can clarify here ...

Indeed, fstab.remote is mounted from within a chbind.

> anyway, you might want to use one of the pre-pre scripts and
> limit your networking to the guest ip you want to do the mount
> from (with chbind)

... which should mean that this wouldn't change anything.

> best,
> Herbert

-- 
Daniel Hokka Zakrisson