In this tip we will see how to use the terminal to check information about your network adapters under Ubuntu. This may help you choose the correct driver to use with your wired or wireless network adapter.

Open the terminal (Ctrl+Alt+T) and run this command:

sudo lshw -C network

The output returened will be similar to this:

~$ sudo lshw -C network
       description: Ethernet interface
       product: 82540EM Gigabit Ethernet Controller
       vendor: Intel Corporation
       physical id: 3
       bus info: pci@0000:00:03.0
       logical name: eth1
       version: 02
       serial: 08:00:27:6c:82:fc
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm pcix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.21-k8-NAPI duplex=full firmware=N/A ip= latency=64 link=yes mingnt=255 multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:10 memory:f0000000-f001ffff ioport:d010(size=8)
       description: Wireless interface
       physical id: 1
       bus info: usb@1:2
       logical name: wlan0
       serial: 00:a1:b0:0b:7d:de
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rt2800usb driverversion=3.0.0-12-generic firmware=0.29 link=no multicast=yes wireless=IEEE 802.11bgn

Read carefully returned output to get precise information about your wired and wireless network adapters. The output may contain network adapter name, vendor, serial, capacity, etc.

[Note]: This tip is tested under Ubuntu 11.10 Oneiric Ocelot, but it is also functional on older versions of Ubuntu (11.04/10.10/10.04).

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