sep 212012
 

Just installed my first CentOS 6.0 test server. In order to save bandwidth, I downloaded the minimal installation ISO which produced a Linux system that was able to boot correctly, but provided none of the standard system-config-… tools. So in order to continue installation, I had to setup IP information for the systems network card by manually editing files. This is a summary of the steps I followed.

Go to /etc/sysconfig/network-scripts/ and edit file ifcfg-eth0. Then, make sure you provide the following keys

DEVICE=eth0
HWADDR=00:1f:29:c3:22:16
BOOTPROTO=static
NM_CONTROLLED=yes
ONBOOT=yes
IPADDR=10.5.0.6
NETMASK=255.255.255.0

Open file /etc/sysconfig/network and add information for host name and default gateway like this :

NETWORKING=yes
HOSTNAME=barbara.shelman.int
GATEWAY=10.5.0.1

The DNS servers are defined in /etc/resolv.conf. Typically the file looks like this:

nameserver 10.5.1.1
nameserver 10.5.1.2

Network manager should pick up the changes immediately. In case it does not, restart the netwrok service like this :

/etc/init.d/network restart

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