I have two computers Comp A and Comp B
Comp A has CentOS 5.5 (64 bit)
and Comp B has openfiler 2.999.1 (64 bit)

I am comparing the values of /etc/sysconfig/network-scripts/ifcfg-eth0 in both machines
values are listed below



comp A
======

# nVidia Corporation MCP61 Ethernet
DEVICE=eth0
BOOTPROTO=none
HWADDR=00:141:26:0F:6E
ONBOOT=yes
DHCP_HOSTNAME=racnode2
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
IPADDR=192.168.1.152
NETMASK=255.255.255.0
GATEWAY=192.168.1.1

Comp B
======
# Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller
DEVICE=eth0
BOOTPROTO=none
HWADDR=00:24:E8:13:6F:EB
IPADDR=192.168.1.195
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
ONBOOT=yes
IPV6INIT=no
PEERDNS=yes
DHCP_HOSTNAME=openfiler1
TYPE=Ethernet
USERCTL=no


For some reason unknown to me
Comp A is able to ping www.yahoo.com
and Comp B is unable to ping www.yahoo.com


I am able to ping Comp A from Comp B and vice versa


Please help

Well the config looks OK, but that's not really veryuseufl compared to the actual running state. post the output of "ifconfig -a" and "route -n"

Are both interfaces actually up? Can you ping each other? Do you have DNS servers configured?

Check that Comp B can resolve www.yahoo.com, if not then check your resolver settings.

Also mention what error message you're getting while pinging yahoo from Comp B?

Some other website helped me

The file resolv.conf on COMP A had the entry
nameserver <Gateway ip address >

create a same file on COMP B with the same entry

and Comp B also started pinging (resolving the names to ip addresses)
for www.google.com and www.yahoo.com etc etc

So - Issue is now resolved

Good, then please Mark the thread as solved (option is under Thread Tools on top menu), if you think it has so.