nfs mount problems

From: p cooper (pdconetwofour_numbers__at_yahoo.co.uk)
Date: 09/29/05 

Date: Thu, 29 Sep 2005 20:37:43 GMT

server
grenada / # cat /etc/exports |grep -v '#'
/var/www 192.168.0.0/24(rw)
grenada / #
                              
client
dads / # mount -t nfs 192.168.0.1:/var/www /mnt/GRENADA
mounts it
but
dads apache2 # mount -t nfs grenada:/var/www /mnt/GRENADA
mount: grenada:/var/www failed, reason given by server: Permission denied
dads apache2 #
             
even though
dads apache2 # ping grenada
PING grenada.home.nw(192.168.0.1) 56(84) bytes of data.
64 bytes from vexim (192.168.0.1): icmp_seq=1 ttl=64 time=0.506 ms
64 bytes from vexim (192.168.0.1): icmp_seq=2 ttl=64 time=0.494 ms
64 bytes from vexim (192.168.0.1): icmp_seq=3 ttl=64 time=0.484 ms

--- grenada.home.nw ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 0.484/0.494/0.506/0.027 ms
dads apache2 #

if the server /etc/exports is

grenada / # cat /etc/exports |grep -v '#'
/tmp 192.168.0.0/24(rw)
/home 192.168.0.0/24(rw)
grenada / #

 home mounts but tmp doesnt
[code]dads apache2 # mount -t nfs 192.168.0.1:/home /mnt/GRENADA
dads apache2 # umount /mnt/GRENADA/
dads apache2 # mount -t nfs 192.168.0.1:/tmp /mnt/GRENADA
mount: 192.168.0.1:/tmp failed, reason given by server: Permission denied
dads apache2 #
with the file persmissions

grenada / # ls -la |grep tmp
drwxrwxrwt 4 root root 940 Sep 28 11:15 tmp
grenada / # ls -la |grep home
drwxr-xr-x 5 root root 4096 Aug 26 09:19 home
grenada / # [/code]

why doesnt DNS lookup work within nfs ?
why cant I mount the /tmp directory ?

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