Configurar redes de forma manual en Linux

Editar estos archivos:

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-/etc/network/interfaces:
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auto lo
iface lo inet loopback

iface eth0 inet static
address 152.74.25.148
netmask 255.255.255.0
network 152.74.25.0
gateway 152.74.25.1
broadcast 152.74.25.255
auto eth0


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-/etc/resolv.conf:
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nameserver 152.74.16.14
nameserver 152.74.16.12

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y finalmente reiniciar la configuracion de red con:
/etc/init.d/networking restart