Ethernet is a way of connecting computers together in a local area network or LAN.

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22
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2answers
90k views

How do I install drivers for the Atheros AR8161 Ethernet controller?

I have installed Ubuntu 12.04-64 bit on my Lenovo IdeaPad laptop, and the wired Ethernet (LAN) connection doesn't work. Running the lspci -vv | grep Atheros command from the terminal shows me I have ...
13
votes
6answers
9k views

Why is my Internet connection randomly dropping?

Ever since I have installed 12.04 (clean install not an upgrade), I have been having a drop in the Internet connection. The drop in the connection can be anything from 15 seconds to about 3 mins, and ...
12
votes
2answers
1k views

How to configure preferred network for internet?

I am connected to a LAN network and wireless network. Both provide access to internet. Sometimes when the internet on LAN is not working, the browser simply throws an exception instead of switching ...
11
votes
7answers
14k views

Two ethernet ports on motherboard. How can I get double the bandwidth?

Direct Question: My evga classified motherboard has two ethernet ports. I want to use them simultaneously to improve the speed of a remote connection. (Yay for programming remotely). How do I do ...
8
votes
5answers
10k views

What is the active MAC Address of my computer?

While looking to find the MAC Address of my computer as it appears to a wireless network, it was recommended that I run ifconfig. Having executed that command in the Terminal, I noticed that, unlike ...
7
votes
4answers
26k views

Wired connection not working Ubuntu 12.04

My connection was fine until now, but my wired connection is not working in Ubuntu 12.04. I have installed Ubuntu 12.04 along side Windows 7 partition and the connection works on Windows but not on ...
7
votes
1answer
2k views

Why does Ubuntu keep trying to connect to a WiFi network while plugged into an ethernet

My desk is situated at the edge of the range of a wireless signal which I use occasionally (when away from my desk) and is therefore saved in network manager. At my desk, however, I plug into the ...
6
votes
2answers
2k views

What should my MAC address be? (now shows 00:00:00:00:00:00)

I have three computers all wired into my router. The box I'm posting this from is running Ubuntu 11.10, and another machine is running Xubuntu 11.10 Both connected automatically when the ethernet ...
6
votes
5answers
14k views

When Ubuntu Server restarts eth0 Doesn't come back up

Every time I restart my Ubuntu Server 11.10 I can't ssh into it because ETH0 doesn't come up automatically. I never had this problem before upgrading to 11.10. I have to login to the server and start ...
5
votes
3answers
7k views

Ethernet problem in ubuntu 13.04

Can't wait till raring officially release, I decided to use daily-image of it. However, my ethernet is not working. cannot be selected and activated to retrieve DHCP from my LAN. It was working ...
5
votes
2answers
3k views

Installed Ubuntu 11.10, and networking constantly fails

I just installed Ocelot on my new machine (with an ASUS M5A99X EVO motherboard and on-board gigabit ethernet), and I asked it to download updates while it installed. The install took forever, the ...
5
votes
2answers
1k views

How to block Internet for guest account?

How can I block or disable my Ethernet Internet connection, for the guest account only?
4
votes
2answers
778 views

Why do Ethernet devices not show up in “/dev”?

Generally I have noticed that plugging in a new device in a Linux system causes a new entry to be listed in /dev (assuming you have the correct drivers). For example: When you plug in a new hard ...
4
votes
1answer
7k views

Ethernet not working (neither even detected) on Ubuntu 12.04

Ethernet is not being detected on my computer running Ubuntu 12.04 with LAMP. The last thing I remember doing is following this tutorial: ...
4
votes
1answer
2k views

How do I share my wireless connection via a wired cable?

Im trying to share the wireless from my netbook eeepc to my desktop computer that does not have any wifi, it can run internet through a cable connected to my internet router but im wondering if there ...
4
votes
2answers
4k views

Disable Ethernet permanently to speed up boot time

I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process ...
4
votes
1answer
7k views

Ubuntu 13.10 - Share wireless internet connection through Ethernet

Hi I want to share the wireless internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but I my ...
4
votes
2answers
1k views

How to sync files on 2 computers using an ethernet cable (offline)?

I have a laptop running Ubuntu 12.04 and a netbook running Ubuntu 12.10. I want to sync some folders from my laptop on my netbook, connecting them with an ethernet cable. Both computers are offline, ...
4
votes
0answers
7k views

12.04 does not detect eth0(Atheros AR8162 ) [duplicate]

Possible Duplicate: How do I get an Atheros AR8162 working? Installed 12.04 on dell inspiron 5420. WiFi is working however wired connection does not work. In fact I can't see eth0. Can I ...
3
votes
4answers
12k views

How do I get a Qualcomm Atheros Killer E2200 gigabit ethernet card working?

I bought a new computer, hoping to dual boot Win 8 and Ubuntu 13.04. I have successfully installed both OS, but in Ubuntu I have no connection to the internet, even though the ethernet cable is ...
3
votes
2answers
6k views

How can I install the Atheros AR8161 drivers without an internet connection?

Following this question How do I install drivers for the Atheros AR8161 Ethernet controller? To be able to compile I need some packages. Is there any "bundle" of the required packages ...
3
votes
2answers
5k views

How can I automate a root command after (not during) startup?

I'm using Ubuntu 12.04 LTS, but I need to run the following command: sudo dhclient after startup to acquire a stable ethernet connection. I am running dhclient during startup already, through the ...
3
votes
3answers
670 views

Is there any invariable hardware system identifier in Ubuntu/Linux

At the current I am using ethernet mac address to generate license for my program, but sometimes there is more than one ethernet card (wireless, modem, etc.). So I would like to use something else: ...
3
votes
1answer
1k views

Only Around 50MB/sec Max Network Transfer; had 70-100MB/s on Windows, Ubuntu reports Gigabit Speeds, Why?

I have two different computers, one a desktop, the other a laptop. Both have different network controllers in them (one Qualcomm Atheros, other Realtek). Both using the included driver. Both ...
3
votes
2answers
7k views

Intel I217LM ethernet controller not detected by Ubuntu 12.04LTS

My last installation of Ubuntu 12.04 on a machine using an ASUS Q87M-E motherboard with an Intel I217LM Ethernet controller has failed to detect the ethernet card. The only thing displayed by ...
3
votes
1answer
32k views

Trying to configure eth0 and eth1 but Failed to bring up eth1

Trying to do below on Ubuntu 12.04. Trying to configure eth0 and eth1, eth0 works fine, but failed to bring eth1. Below is the settings /etc/network/interfaces: auto eth0 eth1 iface eth0 inet ...
3
votes
4answers
2k views

Ubuntu 12.10 no network devices detected

I installed ubuntu 12.10 on my Dell Vostro 3460 and no network devices are detected (ethernet and wireless). when I run lspic, I see: 1:00.0 Network controller: Broadcom Corporation BCM43142 ...
3
votes
2answers
325 views

Which one consume less battery in Ubuntu (generally Linux) Ethernet cable or Wireless?

I am wondering when i want to connect to network, it is better use my wireless adapter or using cable (ethernet adapter), Which one consume less battery? Sometimes i saw that my battery life was more ...
3
votes
1answer
84 views

Audio over ethernet

I am not sure whether this is the right place for asking this question, but anyway I would like to give it a try. I want to transport audio over ethernet. I want to do a simple experiment with it. ...
3
votes
1answer
440 views

Dell M6700 ethernet (e1000e) not working in 13.04

I have 13.04 64-bit on my Dell M6700. Wired ethernet worked for a while, but now stopped working. As an extra information, the ethernet works through the docking station (port replicator), but not ...
3
votes
2answers
15k views

Ethernet card not detected on Ubuntu Server 12.04

My onboard ethernet isn't detected after a re-install of Server 12.04. For reasons I won't get into here, I had to put the server's drive into another machine to install Ubuntu, then swap back into ...
3
votes
1answer
3k views

My hardware MAC address is always 00:00:00:00:00:00 until I manually update 'eth0'. How can I fix this? [duplicate]

I am using Ubuntu 12.04. I use a wired connection. My network MAC address shows as 00:00:00:00:00:00. When I enter the commands below into a terminal window, it starts working again. sudo ifconfig ...
3
votes
2answers
3k views

How to 'unplumb' a network interface [closed]

I want to remove a un-use network interface on Ubuntu 11.10 desktop but failed. virbr0 Link encap:Ethernet HWaddr 16:13:97:0c:0f:4f UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 ...
3
votes
2answers
544 views

What is easiest solution for twisted cable connection between two PCs running Ubuntu

I plan to change OS on my other PC from Windows XP to Ubuntu and want to have access to it. Basically please imagine two PCs, each running Ubuntu 11.04 and connected together with twisted cable ...
3
votes
0answers
3k views

RTL8111/8168B Rev 06 Ethernet controller not working with AMD64 Kernels > 2.6

Like everyone else i'm also having trouble with the RTL8111 Ethernet controller. It's not working at all on Ubuntu x64 (tried with 12.04.03 and 13.10). This is my card: lspci -nnk | grep -i net -A2 ...
3
votes
1answer
213 views

wired network not working DELL 17R SE

Wired Network not working; it shows connected to network but I get no Internet access..! System DELL 17R SE Output of lspci -nnk | grep -iEA3 "(network|ethernet|wireless|broadcom)" lspci -nnk | grep ...
3
votes
1answer
1k views

Ubuntu 12.10 boot hangs at purple screen when integrated NIC (ethernet card) is enabled in BIOS

Here's my weird problem, with a UEFI Ubuntu 12.10 64 bits installation on an Inspiron 14z ultrabook with an integrated Atheros AR8162 ethernet card (NIC). If the AR8162 card is enabled in BIOS, ...
3
votes
0answers
782 views

Dell Vostro 1510 can't connect using wired connection

I recently dual-booted my system with Windows 7 and 12.04. I can't access Internet through wired connection, in spite of LAN cable in the socket. It says network cable unplugged, but I can access ...
3
votes
1answer
4k views

Ubuntu 12.04 wired ethernet not working and wireless not working, How do I fix it? [closed]

I am new to ubuntu. I recently installed the latest ubuntu for desktop from http://www.ubuntu.com/download. I was very excited to start using ubuntu until I booted the computer and saw that i couldn't ...
3
votes
1answer
754 views

Shape incoming traffic using tc (and IFB?) on a NAT ed interface [closed]

I have an Ubuntu machine acting as a router/Stateful Firewall/NAT for my internet connection. It has a couple of ethernet ports and a wireless network for my home network (eth5, eth7, eth10 and ...
2
votes
2answers
8k views

How do I get an Atheros AR8131 ethernet card working?

I have an Atheros AR8131 Ethernet card on a Lenovo b560 laptop. Sometime in the past, probably at some upgrade or other my wired connection stopped functioning. I know the card is ok because it works ...
2
votes
1answer
862 views

Why doesn't Ubuntu automatically disable wireless networking when a wired connection is active?

When I have Wireless enabled and plug in my Ethernet cable, the wireless connection stays active, even when the wireless and wired connections are through the same network. I'm aware of this question ...
2
votes
1answer
1k views

Ethernet dongle not working on a Lenovo Thinkpad X1 Carbon

I have recently bought a Thinkpad X1 Carbon, installed Ubuntu 12.10 and everything I need works like a charm - except for the Ethernet USB dongle. Searching Google hasn't brought up any solutions or ...
2
votes
1answer
297 views

How do I setup ethernet-only SSH?

On my pair of Ubuntu systems, a 3 MB file transfer via Nautilus 2.32 over SSH takes about 15 seconds between two computers with identical wireless cards 2 meters apart. Larger files take ...
2
votes
1answer
5k views

How to install (or troubleshoot) a USB 3.0 AX88179 Gigabit Ethernet adapter?

I have a USB 3.0 AX88179 based Gigabit Ethernet adapter and after searching online, I found many people reporting success with this device under Linux. The driver entered the mainline kernel on ...
2
votes
1answer
3k views

How do I get a StarTech USB 3.0 to Gigabit Ethernet Adapter working?

I bought a Startech USB 3.0 to Gigabit Ethernet Adapter and looking for linux drivers. I did google search and did not come up with anything. Startech.com has only windows drivers. Any help on ...
2
votes
2answers
228 views

What is the best way to trigger scripts or actions when the computer is disconnected from the network?

I am running 12.04 LTS. There are a number of shared resources that I use that are housed remotely on a local server. When disconnected from the network (on say a network, or router failure), I would ...
2
votes
1answer
4k views

How do I connect using ssh over a direct Ethernet connection?

I have a laptop, a desktop, and a spare 5' Ethernet cable that I can use to directly connect one to the other. The desktop freezes every few days or so, seemingly at random, and when it happens I want ...
2
votes
3answers
2k views

Dell inspiron 1545 wired and wireless do not work

When I realized my wireless wasn't working with ubuntu, I plugged my laptop in to try and figure out the problem online - only to find it doesn't work that way, either. The problem isn't my internet/ ...
2
votes
1answer
90 views

How do I use NAT in iptables

I have a domain set for my server, let's say example.com which is being forwarded by my router and is linked to my external IP 11.111.111.111 and it works fine if I ping the domain, or I do a lookup, ...