Network configurations with minimal installation of Linux
Minimal installation of a linux distro in our case CentOS/RHEL/Scientific linux. is always a better idea as less packages means you are less prone to attacks & less machine overhead as well. But for that purpose you have to modify the network setting after the installation is done. For DHCP Open the file /etc/sysconfig/network-scripts/ifcfg-eth0 And add/modify the following lines as per your network config. BOOTPROTO="dhcp" ONBOOT="yes" After modifying ifcfg_eth0 will look like this. DEVICE="eth0" HWADDR="08:00:27:DB:77:F4" NM_CONTROLLED="yes" ONBOOT="yes" BOOTPROTO="dhcp" For static Open the file /etc/sysconfig/network-scripts/ifcfg-eth0 And add/modify the following lines as per your network config. IPADDR=10.11.16.101 BOOTPROTO=none NETMASK=255.255.255.0 GATEWAY=10.11.16.1 DNS1=10.11.16.2 DNS2=10.11.16.3 USERCTL=yes After modifying ifcfg_eth0 will look like this. DEVICE="eth0" HW