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Re: Possible bug in nfs-common (Lenny != Squeeze)?



On Wed, Feb 9, 2011 at 9:37 AM, Mario Kleinsasser
<mario.kleinsasser+debian@gmail.com> wrote:
> On Tue, Feb 8, 2011 at 7:31 PM, Tom H <tomh0665@gmail.com> wrote:
>> On Tue, Feb 8, 2011 at 1:16 PM, Mario Kleinsasser
>> <mario.kleinsasser+debian@gmail.com> wrote:
>> >
>> > Currently I am facing the following problem. At work site we have an IBM
>> > mainframe (i6OS). We are using this mainframe as NFS server to share
>> > data
>> > between both worlds.
>> > Since the mainframe NFS supports v.4 we are using it because it is much
>> > easier to handle through firewalls (single port etc.)
>> > In this setup the Debian server (Lenny) is acting as NFS client that is
>> > working quite cool. No problem on mounting, reading, writing files....
>> > If I am using a fresh Squeeze installation, it is impossible to mount
>> > the
>> > NFS share. No chance.
>> > The NFS client gave me the information "Access denied".
>> > In /var/log/syslog I got the message that user xyz@domain is not
>> > mappable to
>> > a local user. I've read a lot about the domain thing from NFSv4 and also
>> > about idmapd etc.... (and tried a lot) but why it works with Lenny but
>> > not
>> > with Squeeze?
>> > This setup runs inside a VMWare Esxi environment so its easy to test the
>> > behavior. When I shutdown the Squeeze box and startup the Lenny box
>> > (same IP
>> > etc...), all is working without problems. The other way - no chance. I
>> > also
>> > read about some problems in the Debian bug tracker and a common
>> > workaround
>> > for some problems is to downgrade to the Lenny version of nfs-common,
>> > like
>> > bug #585085.
>> > My question: is anyone using Lenny and Squeeze as NFS v4 only client in
>> > parallel? I have not installed a "normal" NFSv4 server until know.... I
>> > hope
>> > anyone could give me a hint to solve this.
>> > For your information, both servers, Lenny and Squeeze are installed from
>> > scratch (net-installer) without any modifications afterwards. First
>> > thing
>> > I've tested after installation is to mount the NFS server share. I guess
>> > there has something changed in the nfs-common package because I have the
>> > same problem if I am using an Ubuntu 10.4. Should I file a bug with
>> > detailed
>> > informations?
>>
>> Squeeze defaults to nfsv4 so you have to synchronize the NFS domains
>> of the server or client or force an nfsv3 mount on the Squeeze box.
>>
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610953
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=609487

> thanks for information about the "known" bugs.
> I read forward and as I understand, with nfs4 we all must use domains.
> As i read we have to configure the domain settings correct and maybe we have
> to manage it to use nfs4 by different domains.
> (http://www.enterprisenetworkingplanet.com/netos/article.php/3644471/Implement-NFSv4-Domains-and-Authentication.htm).
> OK, sounds serious.
> But why is it working with Lenny? We have not changed anything on the
> mainframe. So the domains setting was and is still different......?

You're welcome.

Are you sure that Lenny's using nfsv4?


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