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

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How to know which network is connected?

How can I see using command-line whether I am connected to network using eth0, eth1 or wln0 etc? Well, to elaborate, I have a desktop sidebar which I installed using program "conky". This sidebar has ...
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2answers
104k 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 ...
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1answer
7k views

How to install Network Adapter Drivers for Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) Ubuntu 12.04 [duplicate]

How can I install drivers for 64-bit Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) for Ubuntu 12.04. I dual boot Windows7/Ubuntu 12.04 drivers work for 64-bit Windows 7. lspic ...
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1answer
1k views

Ethernet connection stopped working

I walked away from my computer for a few hours, restarted for some updates and afterwards the ethernet connection was no longer working.
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2answers
79 views

Is network configuration necessary for ethernet?

I am trying to connect my Ubuntu system to the internet using Ethernet cables. Do I need to change any settings from the defaults? Thanks.
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4answers
37k 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 ...
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2answers
572 views

Why does Ubuntu really slow down the rest of my home network?

I have a Ubuntu desktop and a Windows 7 desktop. The Windows 7 machine is connected via wireless adapter and the Ubuntu desktop is connected via Ethernet. The wireless adapter is capable of 300Mbps ...
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2answers
523 views

**Wired** network disconnects when laptop unplugged

I am using Xubuntu 12.04 with Network Manager on my HP 5310m Laptop and get a weird problem on wired network. When googling for answers, I found many people get the problem that wireless disconnects ...
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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 ...
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2answers
1k views

After upgrading from 11.10 to 12.04 I don't have ethernet connection, how to solve it?

I had a wired network connection that worked fine in Ubuntu 11.10. I upgraded to 12.04 and immediately after the upgrade was completed, the OS reported my cable unplugged. It was not unplugged and ...
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1answer
473 views

Trouble communicating with router DHCP?

my home network is has problems regarding linux computers, two ubuntu and two mint. I have had a look at the log files and searched the internet regarding the solution. I cannot find a whisker of a ...
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1answer
431 views

Ethernet cable isn't being detected in Ubuntu 12.04

I installed Ubuntu 12.04 smoothly. but for updation etc when I want to connect with my wired cable internet connection, find that all are same like the previous version and I put all ip address, dns ...
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1answer
913 views

Need to install ethernet firmware for Dell PowerEdge 2650 integrated BCM5703 NIC

I have a Dell Poweredge 2650 and I'm trying to install the ethernet firmware/driver. I found this page but I can't figure out how to install it. Their isn't a loader.conf and I would like to avoid ...
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2answers
5k 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 ...
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0answers
2k views

decreasing boot time on Ubuntu 12.04

I know it is just a luxury problem. But I would like to decrease the boot time of Ubuntu 12.04. Before it started up within 60 seconds, after tweaking a bit I keep it now constantly around 37 seconds. ...
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6answers
11k 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 ...
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1answer
4k 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 ...
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1answer
1k views

How to autoconnect to Ethernet network when restarting?

Firstly, I hope this hasn't been covered elsewhere, I have searched but haven't found this particular problem. I updated to 12.04 a while back and though I now thoroughly regret that decision, I'm ...
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2answers
2k views

How to block Internet for guest account?

How can I block or disable my Ethernet Internet connection, for the guest account only?
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1answer
5k 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 ...
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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 ...
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2answers
4k views

Ethernet connection for Realtek RTL8139/810x not working

I installed ubuntu recently and i cant connect to internet.... I never deal with linux before much but i cant connect to internet and it keeps giving notification wired connection disconnected Its ...
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1answer
534 views

How can i learn ethernet device buffer size on ubuntu 11.10

i wonder if i can learn ethernet buffer size.Almost all of us visit youtube or other video sites and if our connection limit is lower (i live in Turkey and fast internet is really )so when i want to ...
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3answers
3k views

Wired Network (eth0) disappears on a Lenovo Z570

I upgraded from Ubuntu 11.10 to 12.04 yesterday. I am running a BSNL Broadband DSL conenction. The wired network suddenly dissapears and the computer stops detecting the ethernet card after sometime. ...
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3answers
12k views

Ethernet conection not working Atheros AR8152 OS 12.04

I have instaled Ubuntu 12.04 but my network conection doesn't work and i know it's becouse of the drivers I've run $ lspci | grep Ethernet and this is the result 02:00.0 Ethernet controller: ...
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1answer
955 views

Problems with wired network on acer aspire 1410

The problem is the following: i can't establish a wired connection on Acer Aspire 1410 with Ubuntu 11.10 installed. Wireless connection works fine. But when i plug the network cable and disable wifi ...
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1answer
282 views

Ubuntu frontier DSL internet not working?

I recently installed ubuntu 11.10 on an older computer Pentium 4 dual 3.0 chips. Ubuntu installed and runs great, but cannot get the internet to work. Will not recognize either the ethernet card, or ...
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2answers
5k views

Davicom DM9601 USB LAN NIC Ubuntu 11.10 issue

I have a davicom dm9601 USB ethernet card. When I plug in the device, it is detected and drivers are loaded, but I can't connect to internet using it. It works perfectly on XP, other laptop but not ...
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2answers
2k views

Why does Ubuntu only detect one USB LAN adapters at a time?

I try to connect real switch with my computer for an exam preparation, for this purpose I need more than one LAN cards, and there is only one built in LAN card in my computer. So, to get more LAN ...
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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 ...
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3answers
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How do I install the ethernet drivers in ubuntu 10.04

I ran the command: ifconfig -a which gave this output, there is no eth0: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 ...
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1answer
597 views

On restart server Ethernet went down saying not configured!

i justy have configured my dhcp server with static ip. after configuration dhcp server & routers were working fine. but after restarting server network connectivity went off. there are two lan ...
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1answer
473 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 ...
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2answers
10k 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 ...
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1answer
782 views

Connecting to an Ubuntu Server using Ethernet cables but no internet connection

I administer about 6 computers at a school. The computers are very old -- they used to be running Windows 98 -- but they are still usable and are now running Ubuntu. I also have 2 more modern ...
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1answer
6k views

Set up eth0 network interface using DHCP in initramfs

I created my own initramfs script (based on live-initramfs) and I need set up network connection (using DHCP) to get remote file. So what do I need to add to initramfs hook file (ifconfig, ...
2
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1answer
6k 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 ...
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3answers
3k 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/ ...
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1answer
4k views

Wired connection not working (unplugged) help? [duplicate]

Possible Duplicate: Make Network Manager restart after dropped connection? I configured the pppoe connection in network manager it works perfectly fine when i start my computer after some ...
4
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3answers
980 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: ...
2
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1answer
3k views

Bridge Laptop's Ethernet to Wireless

The laptop wirelessly connects to my router, while the desktop is connected to the laptop with an ethernet wire. The desktop successfully can use the internet if I set the connection to be shared on ...
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0answers
259 views

How to get online on command line? [closed]

I have installed Ubuntu on VMware on my Mac OS X. I have installed VMware tools and had enabled network adaptor. But Ubuntu still could not get online. I try ifconfig, but I only get 127.0.0.1. I ...
0
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1answer
465 views

usb0 ethernet on 10.04.3 Server

I am installing Ubuntu 10.04.3 on IBM System x3400 M3 which is listed as certified for Ubuntu 10.04. I was unable to configure Broadcom netxtreme II Gigabit Ethernet Driver bnx2 during that point. ...
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1answer
443 views

Ethernet fails after a few minutes on ubuntu 10.10 — can't reactivate without restart

I just got a new Toshiba Satellite C650 and set it up to dual boot Ubuntu 10.10 and Windows 7. Ubuntu will be my primary OS, but I'm having a weird problem with wired ethernet: when plugged into my ...
0
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1answer
663 views

Ubuntu 11.10 disconnects me from internet (cable)

I'm connected to the Internet via router (wired) and Ubuntu disconnects me from it. I have to manually disconnect from my network (via panel in top-right corner) and connect again. I don't know why. ...
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2answers
4k 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 ...
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0answers
463 views

Bad ethernet connection in Ubuntu 11.10 [duplicate]

Possible Duplicate: Internet slow on Ubuntu but not windows I am using ubuntu 11.10 . If am connect to Internet by cable I have connection problems. Internet is always really slow and ...
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2answers
944 views

Server getting error after doing distro upgrade: tg3_stop_block timed out

im running ubuntu on a HP Server Blade ProLiant BL25p G1 after doing distro upgrade to oneiric im geting dpammed whit these messages on terminal. if i turn of the eth0 interface with sudo ifconfig ...
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2answers
1k views

wireless connects to internet but wired does not, both connect to gateway untangle firewall, what to do?

My home LAN is set up with fixed IP addresses and an Untangle gateway/firewall/DNS server with Internet access. One of my computers (Ubuntu 10.10) will connect to the Internet only through the ...
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2answers
2k views

Extremely slow internet wired connection in Asus x101h, Ubuntu 11.10

My ethernet connection is very slow (it was also with 11.04). It works fine with another PC with XP. Also, WIFI is OK in Ubuntu. I've checked several help pages, but nothing seems to work: The ...