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Configurar la red en ubuntu.

Tras estar probando con Bind9, servidores DHCP y demas, perdi mi configuracion de la tarjeta de red.

El sistema no me reconocia la interfaz eth0 => no tenia internet => problema.

Como a mi me da direcciones mi router, sabia que tenia que configurarla para que le asignaran una direccion de forma dinamica.

Al final, los pasos que segui fueron estos:

Configurar el archivo /etc/network/interfaces de la siguiente manera:

sudo gedit /etc/network/interfaces

escribir las siguientes lineas en el archivo:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp


Grabar los cambios y reiniciar la interfaz:

/etc/init.d/networking restart


En el caso de querer configurarla estaticamente, habria tenido que escribir las siguientes lineas en mi /etc/network/interfaces:


iface eth0 inet static
address 192.168.1.5
netmask 255.255.255.0
gateway 192.168.1.254

//LAS DIRECCIONES PUESTAS SON UN EJEMPLO
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