NFS

Hi,

I have a PC (let its name to be AAA) on which I installed Debian Etch.
After boosting, this PC will mount a remote drive (via NFS) on its
/home. Everything went fine.

Here come a weird part. If I am at my desk, I can login AAA without any
problem. However, if I try remote login AAA, I keep getting "Permission
denied, please try again" when I type my password.

AAA is the second one which I setup. The first one is working without
any problem. I compared all exports, hosts, groups files in /etc in two
machines. They are the same.

Can someone tell me what would be a source of this problem? and how to
fix it?

Thanks,
tat

On 2 Aug 2006 07:48:26 -0700, "tat" <tuantran167@gmail.com> wrote:

>Hi,
>
>I have a PC (let its name to be AAA) on which I installed Debian Etch.
>After boosting, this PC will mount a remote drive (via NFS) on its
>/home. Everything went fine.
>
>Here come a weird part. If I am at my desk, I can login AAA without any
>problem. However, if I try remote login AAA, I keep getting "Permission
>denied, please try again" when I type my password.

I cannot visualise your problem precisely, so I offer a working example:

server example (deltree):

~$ cat /etc/exports
# See exports(5) for a description.
# This file contains a list of all directories exported to other computers.
# It is used by rpc.nfsd and rpc.mountd.

/home/share 192.168.1.0/24(sync,rw,no_root_squash)
/home/mirror 192.168.1.0/24(sync,ro)
#
/home/share 192.168.2.0/24(sync,rw,no_root_squash)
/home/mirror 192.168.2.0/24(sync,ro)
#
# export NFS mounted /usr for stinkpad laptop:
/home/hal/usr 192.168.1.30/32(sync,rw,no_root_squash)

client example (sempro):

~$ grep nfs /etc/fstab
deltree:/home/share /home/share nfs hard,intr
deltree:/home/mirror /home/mirror nfs noauto,user,hard,intr
peetoo:/home/install /home/install nfs noauto,user,hard,intr
peetoo:/home/public /home/public nfs noauto,user,hard,intr,exec

>AAA is the second one which I setup. The first one is working without
>any problem. I compared all exports, hosts, groups files in /etc in two
>machines. They are the same.

Did you run exportfs after setting up second box? Are they both
running same nfs version, is portmap running both boxen?

You might need to sniff lan (tcpdump, if lan is quiet enough) to see
what's going over the wire.

Grant.

Hi Grant,

Thanks very much for your reply. I got sidetrack until today. I spent
sometimes today to track down the problem. Now it worked. The problem
turned out to be
group permission that was set in sshd_config.

Thanks,
tat



Grant wrote:
> On 2 Aug 2006 07:48:26 -0700, "tat" <tuantran167@gmail.com> wrote:
>
> >Hi,
> >
> >I have a PC (let its name to be AAA) on which I installed Debian Etch.
> >After boosting, this PC will mount a remote drive (via NFS) on its
> >/home. Everything went fine.
> >
> >Here come a weird part. If I am at my desk, I can login AAA without any
> >problem. However, if I try remote login AAA, I keep getting "Permission
> >denied, please try again" when I type my password.
>
> I cannot visualise your problem precisely, so I offer a working example:
>
> server example (deltree):
>
> ~$ cat /etc/exports
> # See exports(5) for a description.
> # This file contains a list of all directories exported to other computers.
> # It is used by rpc.nfsd and rpc.mountd.
>
> /home/share 192.168.1.0/24(sync,rw,no_root_squash)
> /home/mirror 192.168.1.0/24(sync,ro)
> #
> /home/share 192.168.2.0/24(sync,rw,no_root_squash)
> /home/mirror 192.168.2.0/24(sync,ro)
> #
> # export NFS mounted /usr for stinkpad laptop:
> /home/hal/usr 192.168.1.30/32(sync,rw,no_root_squash)
>
> client example (sempro):
>
> ~$ grep nfs /etc/fstab
> deltree:/home/share /home/share nfs hard,intr
> deltree:/home/mirror /home/mirror nfs noauto,user,hard,intr
> peetoo:/home/install /home/install nfs noauto,user,hard,intr
> peetoo:/home/public /home/public nfs noauto,user,hard,intr,exec
>
> >AAA is the second one which I setup. The first one is working without
> >any problem. I compared all exports, hosts, groups files in /etc in two
> >machines. They are the same.
>
> Did you run exportfs after setting up second box? Are they both
> running same nfs version, is portmap running both boxen?
>
> You might need to sniff lan (tcpdump, if lan is quiet enough) to see
> what's going over the wire.
>
> Grant.