Instructions on how to bring up eth0 at boot time in Redhat-7.2 Linux.
Matthew Genelin 072803
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- Copy /etc/sysconfig/networking/ifcfg-lo to /etc/sysconfig/networking/ifcfg-eth0

- Edit (like with vi or pico) /etc/sysconfig/networking/ifcfg-eth0

Make it look like:

DEVICE=eth0
IPADDR=192.168.10.11
NETMASK=255.255.255.0
NETWORK=
BROADCAST=192.168.0.255
NAME=ethernet

- Delete these two files:
rm /etc/sysconfig/network-scripts/ifcfg-eth0
rm /etc/sysconfig/networkscripts/ifcfg-eth1

- Create a symbolic link for the file you just created in network-scripts. 
(e.g. The TARGET is the file you just created, the LINK NAME is in ~/network-scripts)

ln -s /etc/sysconfig/networking/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0

- Edit the /etc/resolv.conf file with vi or pico. (Choose your favorite)
	Make it look like:

nameserver 128.101.101.101
nameserver 209.98.98.98
search .

- NOTE: 128.101.101.101 is the University of Minnesota's name server. 209.98.98.98 is one that was provided by Honeycomb internet services.

- Edit the /etc/modules.conf file. Make it look similiar to:

alias eth0 tlan

(e.g. delete any entries that appear 'alias eth1 tlan'. This is the modules file that loads the kernel module, or driver, for the ethernet card. The cards in the Compaq Proliants work with the tlan 'module' or 'driver'.)

- Edit the /etc/sysconfig/network-scripts/ifup-routes file with vi or pico.
	Make it look like:

#!/bin/bash
TEXTDOMAIN=initscripts
#Added by mgenelin 072803 for default route on Charlie's network:
/sbin/route add default gw 192.168.10.1


(e.g. the first two lines are the typical shell script starting. I just added the comment and forced /sbin/route to be configured at 'ifup' time, when this script is called.)

- Try bringing the interface up with:
/sbin/ifup eth0

- Try to ping my favorite computer in the world, the Computer Science Department at the University of Minnesota:

ping www.cs.umn.edu

- Try to reboot the machine and see if the interface, nameservers and route come up. 

Good luck!

'Nuff Said 

---Matthew Genelin---