NFS setting error in Ubuntu 8.10

[loody]

Hi:

2009/11/3 Tom H <tomh0665 at gmail.com>:
> On Mon, Nov 2, 2009 at 11:23 PM, Tom H <tomh0665 at gmail.com> wrote:
>
>> On Sun, Nov 1, 2009 at 9:49 AM, loody <miloody at gmail.com> wrote:
>
>>> I sudo apt-get install nfs-kernel-server, nfs-user-server and nfs-common.
>>> After config /etc/exports as I need, I execute "nfs-kernel-server
>>> restart", but I cannot see any message show out.
>>> then I execute "showmount -e localhost" and I cannot see any files shared out.
>
>>> below are my outputs:
>>> # /etc/init.d/nfs-kernel-server restart
>>> # showmount -e localhost
>>> portmap getport: RPC: Success
>>> #
>
>>> if I execute "nfs-user-server restart", I can see my sharing folders as below:
>>> # /etc/init.d/nfs-user-server restart
>>> Stopping NFS servers: mountd nfsd.
>>> Starting NFS servers: nfsd mountd.
>>> # showmount -e localhost
>>> Export list for localhost:
>>> /media/test_NFS      *
>>> #
>
>>> but I cannot mount it from another Ubuntu.
>>> my questions are:
>>> 1. what is difference between "nfs-kernel-server" and "nfs-user-server"?
>>> 2. why my nfs-kernel-server doesn't show anything? did I miss something?
>>> 3. are there any additional commands or packages can help me to find
>>> out what's wrong?
>
>> 1. nfs-user-server runs in user-space. It was replaced by unfs in
>> Jaunty. It is less reliable and is limited to nfsv2. It also has other
>> limitations when compared to nfs-kernel-server but I have forgotten
>> them.
>
>> 2. I am surprised that you are able to install them both. I thought
>> that they were incompatible. I would uninstall nfs-user-server, set up
>> nfs-kernel-server again, and make sure that all the relevant services
>> are running (if you want to use nfs-kernel-server). With
>> nfs-user-server, you might need to force an nfsv2 mount on your
>> client.
>
>> 3. "rpcinfo -p nfs_server" and "nmap -n -sT nfs_server"
>
> Forgot, on nfs_server, "netstat -ntulp"
>
I remove all the nfs package and reinstall them.
it works right now :)
but I find the NFS file accessing is pretty slow.
Is there any setting or packages can help me accelerate the speed?
appreciate your help,
miloody