Running minimal Cent OS 4.7

chickonlinux · 10-05-2010, 09:31 PM

I have a minimal Cent OS running for a special project. I cant seem to get the ethernet up and running although the PCI NIC seems to recognized by the OS.

What are the bare essential setting for getting an ethernet connection running ?

Im not worried about security as the machine is behind a firewall router so the firewall can get turned off.

All I have is a command line and no GUI for this installed OS.

Nemesiz · 10-06-2010, 03:03 AM

If you want to set ethernet you can use ifconfig and ip programs to do it.
To list all network devices - #cat /proc/net/dev
To list running netrowks - #ifconfig
To turn on - #ifconfig $device up
Turn off - #ifconfig $device down
To set settings (example) - #ifconfig eth0 192.168.0.4 netmask 255.255.255.0

To set default gateway - #ip route add default via IP_OF_GATEWAY dev DEFAULT_NETWORK_DEVICE
(example) #ip route add default via 192.168.0.1 dev eth0

DNS resolves file - /etc/resolv.conf

chickonlinux · 10-07-2010, 06:01 AM

What about iptables ? How do I make sure the nothing is getting blocked to and from the NIC ?

Quote:

Originally Posted by Nemesiz

If you want to set ethernet you can use ifconfig and ip programs to do it.
To list all network devices - #cat /proc/net/dev
To list running netrowks - #ifconfig
To turn on - #ifconfig $device up
Turn off - #ifconfig $device down
To set settings (example) - #ifconfig eth0 192.168.0.4 netmask 255.255.255.0

To set default gateway - #ip route add default via IP_OF_GATEWAY dev DEFAULT_NETWORK_DEVICE
(example) #ip route add default via 192.168.0.1 dev eth0

DNS resolves file - /etc/resolv.conf

sandebains · 10-10-2010, 03:43 AM

to view if the iptables rules are in place

# chkconfig --list | grep iptables

and

#iptables -L -v

this command gives you the details on rules, you need to run this under su

in order to clear/flush all the rules you can use

#iptables -F

I hope this info will help

jschiwal · 10-11-2010, 01:55 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being moved to linux-newbie so it can be merged with the original.