Telnet or ls etc delays in Red Hat Enterprise Linux WS release 3

Hi,

We have a home dir for users in a common machine  and in all machine we
just do a softlink to that central home dir.....

Ex:

ls -l /home
lrwxrwxrwx    1 root     root         31 Feb  3 16:21 pravink ->  
/net/surya/export1/home/pravink/
---
where
Surya is a remote home dir machine
---

Every time when we  try to telnet from remote host to this  host,it takes 
hell
lot of time to get logged in sometime it happens fast!!
But the local users login happens fast !!


I doubted that the host is taking some time to  resolve the remote hosts 
(since we it shoulg get automounted ) names ir..........But this host is 
able to resolve all other machine in a n/w.
'nslookup' from this machine proves the same !!

Also tried to put all hosts entry including home dir  machine in file  
"/etc/hosts"

But the problem persist :((


Is it a problem with n/w card or machine or something else ?

The machine conf:
--
#more /etc/redhat-release
Red Hat Enterprise Linux WS release 3 (Taroon)
--
# more /proc/meminfo
	total:    used:    free:  shared: buffers:  cached:
Mem:  1053544448 264192000 789352448        0 53137408 85479424
Swap: 2097405952        0 2097405952
MemTotal:      1028852 kB
MemFree:        770852 kB
MemShared:           0 kB
[...]

# The n/w card is a D-Link DFE-538TX Fats Ethernet , for which 
hardware.redhat.com says that its supported
# dmesg | grep net
Initializing RT netlink socket
Initializing IPsec netlink socket
8139too Fast Ethernet driver 0.9.26
eth0: RealTek RTL8139 Fast Ethernet at 0xf8a10c00, 00:08:a1:5f:9e:f7, IRQ 9
8139too Fast Ethernet driver 0.9.26
eth0: RealTek RTL8139 Fast Ethernet at 0xf8a1ac00, 00:08:a1:5f:9e:f7, IRQ 9
[...]

# more /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.66GHz
stepping        : 9
cpu MHz         : 2666.803
cache size      : 512 KB
[...]

Sometimes the machine hangs if we give ls at remote dir
ex:
#ls -l /net/surya/export1/home
**Where surya is the remote machine


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