I recently commented one of my servers with UBUNTU SERVER 18 has presented me with a failure at the level of the motherboard a capacitor and as a more practical solution I have removed the hard drive and I have placed it on another computer, when starting the system all I seem to walk without problems but my network configuration is not activated. When doing ifconfig only gives me results from the network what
$ ifconfig
lo Link encap:Bucle local
Direc. inet:127.0.0.1 Másc:255.0.0.0
Dirección inet6: ::1/128 Alcance:Anfitrión
ACTIVO BUCLE FUNCIONANDO MTU:65536 Métrica:1
Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0
Paquetes TX:0 errores:0 perdidos:0 overruns:0 carrier:0
colisiones:0 long.colaTX:0
Bytes RX:0 (0 KB) TX bytes:0 (0 KB)
By doing ip addr this happens
$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
4: enp0s18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether 00:13:8f:8f:e8:97 brd ff:ff:ff:ff:ff:ff
inet 186.92.108.80/19 brd 186.92.127.255 scope global enp0s18
valid_lft forever preferred_lft forever
inet6 fe80::213:8fff:fe8f:e897/64 scope link
valid_lft forever preferred_lft forever
I have temporarily requested doing this:
$ sudo ifconfig enp0s18 up
$ sudo dhclient enp0s18
And it works temporarily because when restarting the server everything remains as it was before, that is to say I have to repeat the step that I described previously, I already made update and upgrade motivated to that I am in another pc not where the system was installed. I would like to know how I can make the configuration look like this without the need for me to activate the network manually.