I can't seem to get the 'quota' command to work on SL4x.  I have the 
following line in /etc/hosts.allow

rquotad: .phy.anl.gov

I've tried it also with numeric networks.  Nada!  The home directories are
automounted via /etc/auto.home like so:

* -fstype=nfs4,rw,nosuid,nodev,exec     homes.phy.anl.gov:/&

homes exports the directories so:

/home @linux(rw,insecure,sync,fsid=0,no_subtree_check,no_root_squash)

I've also tried running rpc.rquotad manually.  It never hears any request
from the client.  So, I did an strace of the quota command:

strace quota -F rpc

The quota command seems to quit after opening /etc/mtab and reading /.
Here's the last bit of output from strace.

...
open("/etc/mtab", O_RDONLY)             = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=456, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0xb7df0000
read(4, "/dev/hda2 / ext3 rw 0 0\nnone /pr"..., 4096) = 456
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0xb7df0000, 4096)                = 0
exit_group(0)                           = ?
Process 3469 detached
[teh@chianti ~]$ 

Can someone help?

Ken