When a system is installed with CentOS 6 minimal version, it's network is not configured initially and has to be manually taken care of. There are two ways of going about this: DHCP vi /etc/sysconfig/network-scripts/ifcfg-eth0 ONBOOT = yes NM_CONTROLLED = no BOOTPROTO = dhcp vi /etc/sysconfig/network [Hostname is needed to be specified for DHCP to work] NETWORKING = yes HOSTNAME = vi /etc/resolv.conf [Optional] search [ex: lab1.mycompany.com finance.mycompany.net abc.mycmp.com] nameserver Once all the above steps are done, restart the networking service: /etc/init.d/network restart [For troubleshooting] You can also consider using "dhclient eth0" to obtain an ip address for eth0 from dhcp server. Static IP Address vi /etc/sysconfig/network-scripts/ifcfg-eth0 ONBOOT = yes NM_CONTROLLED = no BOOTPROTO = none IPADDR = NETMASK = [for a /24 network it will be 255.255.255.0] GATEWAY = [Optional] USERCTL = yes/no [Opt...
My musings on Cloud, Networking and various technologies