Very Computer

this is a weird problem: I have a small network featuring 3 computers:

the subdomain for each computer is: ping.de

name     function
system        IP-address

A
server                                                             SuSE
5.3    IP: 192.168.0.1
B
workstation                                                    SuSE
5.3    IP: 192.168.0.2
C          IBM Thinkpad with 3com PCMCIA card     SuSE 6.3    IP:
192.168.0.3

A exports some directories as follows

/mnt/armnet1 *.ping.de (rw)
/mnt/armnet2 *.ping.de (rw)

B exports some  directories as follows

/home/anubis *.ping.de (rw)
/home/sheos *.ping.de (rw)

C exports one directory as follows:

/home/thies *.ping.de (rw)

/etc/hosts is setup correctly on all machines,
portmap AND rpc.nfsd AND rpc.mountd are started at boot-time. Every
machine can be pinged or fingered or telneted etc. by name OR IP - no
difference! The network seems to be working fine.

The problems:

1) A exports corretly to B (and vice versa), but A refuses to export to
C - it does not matter if I use the subdomain "shortcut" or enter a long
list of IP-addresses in /etc/exports (on maschine A) - it just says
"Blocked attempt of C to mount...".

2) B exports correctly to A and C. (no problem here :))

3) C exports to A and B (no error reported), but the directories seem to
be empty! (all UIDs are equally set for all users on all machines).

What am I doing wrong? showmount -e <HOST> and rpcinfo -p <HOST> give
correct answers / equal answers. I am totally clueless. Why does A
export to B but refuses to export to C? Why does C export to A and B,
but the directories are empty (however, a mount on A or B shows correct
entries for the exported directory on C)?

It would be great if someone could give me a hint!

THX,

Frederik.

The fact that showmount -e <server> and rpcinfo -p <server>
from *client* show expected info indicates basic stuff ok .

Are the hosts.allow/deny set right ... unlikely but portmap
and nfsd and (I'm guessing) mountd use the tcp wrapper lib.
man portmap describes it , but not the other two.
The fact that rpcinfo and showmount work from the client imply
that the portmap is allowed, so I dont understand why the others
wont unless you have specifically allowed the portmapper.
Perhaps try with the hosts.deny empty and hosts.allow set to
all for a quick test (check man 5 hosts_access).

Are the group ids the same on the boxes ?

I guess the othe question is the permissions on the mounted dirs
on the server, and whether you use root_squash.

Hope you fix it soon,

Steve Houseman

--

currently  steve.houseman at * net