flyingfisch@Office-OptiPlex-745:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:19:b9:46:1d:25
          inet6 addr: fe80::219:b9ff:fe46:1d25/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:744 (744.0 B)  TX bytes:8811 (8.8 KB)
          Interrupt:16

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:96 errors:0 dropped:0 overruns:0 frame:0
          TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:7584 (7.5 KB)  TX bytes:7584 (7.5 KB)

flyingfisch@Office-OptiPlex-745:~$ sudo ifconfig eth0 up
[sudo] password for flyingfisch:
flyingfisch@Office-OptiPlex-745:~$