Configurar IP fixo e DNS no CentOS 6.x
via console em modo root vim /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet UUID=0cfe9c92-84e5-4e13-b027-1222e33d3fa3 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.77.130 PREFIX=24 GATEWAY=192.168.77.77 DNS1=8.8.8.8 DOMAIN=8.8.4.4
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