Managing and using network connectivity on a Ubuntu system

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Why did I loose my internet connection after installing a VPN client?

I installed the VPN client to connect to my company's network, the Cisco AnyConnect SSL VPN client. Everything went fine, I was able to install it correctly, connect to the server, was prompted for ...
2
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1answer
1k views

Disable wireless if wired connection available in XBMC

My HTPC has a wireless and a wired connection. When I start ubuntu both get an IP-adress. I don't see any inherent problem with this, but XBMC seems to default to the wireless, even if the wired is ...
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1answer
432 views

How to Install network drivers on Dell Iinspiron 5420 with Ubuntu 10.04?

I followed this to install network driver How to install network drivers in Dell Inspiron 5420? but it show me this error $sudo make make -C /lib/modules/2.6.32-38-generic/build ...
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1answer
60k views

What is the loopback device and how do I use it?

What are loopback and localhost? Why do they exist, what are they used for, and how would I use them?
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2answers
5k views

HPLIP or CUPS cannot Find Network Printers?

I have been searching for an answer for days now, thought it was time to ask! I have just setup my first ubuntu server, everything is working perfect. I have internet connection, I can ping every ...
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1answer
4k views

unable to connect to internet — networking config not set up

I have a recent install of ubuntu server (all command line) and at the time of the install I was not connected to the internet. when entering sudo apt-get update I get a bunch of messages saying ...
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1answer
393 views

wireless doesn't work after update

I've installed Ubuntu 12.04 on a new Compaq cq58 laptop. After installing Ubuntu wifi dind't work, but following instructions on the forum I could install the drivers and make it work....now after ...
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1answer
88 views

Is there a utility to show total up/download quantity of a process

In bash I can run time $(curl -L ...|bash) to find out the total time this script takes. Is there a way to get similar total information about the up/download traffic it generated? Note that ...
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1answer
3k views

How to figure out which wireless driver I need?

I posted this question on SuperUser and was told to look up the specs for [my] specific wireless card and see if there is a Linux driver for it.... Essentially I have an issue with my wireless ...
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1answer
381 views

Ubuntu 12.04: Google Cloud Print Credentials Error

I am currently running Ubuntu 12.04 and for a while before I have been using Google Cloud Print to print things from my Netbook running Windows 7 Starter to ubuntu printer. Lately I have noticed that ...
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1answer
747 views

usb0 makes for an extremely slow boot

I got a brand new Lenovo Thinkpad T530 from my work recently, with xubuntu installed on it. It's extremely snappy, apart from booting. The moment it's slow (~2 minutes) is between entering my password ...
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3answers
4k views

How do i make ubuntu request a specific ip address from a dhcp server?

So here's the deal. My router assigns ip addresses starting from 192.168.0.50. I have a couple of computers running ubuntu which i want the router to assign 192.168.0.50 and 192.168.0.51 every time ...
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1answer
3k views

12.10: ethernet device is not created on boot

I have a problem with my wired interface - an appropriate device for it is just not created at boot. What is strange about it is that it never gets enabled on boot, but is always created after a ...
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5answers
31k views

How to setup a static IP for network-manager in Virtual Box on Ubuntu Server

Hi there is anyone familiar with the non-gui version of ubuntus network Manager? I'd like to set up a static IP with it in virtualbox without touching the file /etc/network/interfaces. IP: ...
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2answers
548 views

Why can't I connect to the internet via wired connection

I've just resurrected an older PC to use as my linux box. Before Installing Ubuntu I verified that the PC could connect to the internet. I installed Ubuntu and am now not able to connect to the ...
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2answers
2k views

Can't see new ubuntu server

I recently set up an old desktop with ubuntu sever 12.04 32 bit. After finishing the installation and logging into the server, I tried to access it from other computers (both windows and ubuntu) on ...
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1answer
267 views

How to mention a folder in a network?

I'm a returning user to Ubuntu, I've used it several years ago and now I'm getting back. I use calibre do manage my e-books collection, and I have a desktop running win7 and my notebook running ...
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1answer
1k views

Unable to mount O2 HiLink Huawei E3131 Ubunutu 12.10

When trying to connect to the internet with an Hilink Huawei E3131 I get Unable to mount O2 HiLink Error mounting /dev/sr0 at /media/gman/O2 HiLink: Command-line `mount -t "iso9660" -o ...
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4answers
39k views

How to make a home server using Ubuntu desktop?

I was thinking to make my Ubuntu desktop machine in file server for using it at home . I am having one old laptop . Could I use it as a file server so my other 4 system can download data or view data ...
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1answer
589 views

How can I use a script to change the static IP address?

How do I change the IP address of an interface from a script? I should say that I don't want to use ifconfig and also I don't want to edit the /etc/network/interfaces file manually. I need a script. ...
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1answer
16k views

How to set up a network printer. (shared with windows)

I have a freshly installed Ubuntu 12.04LTS and I wanted to use it to share an offline (wired) printer that is connected to the machine running ubuntu. I wanted to be able to print to this printer ...
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1answer
94 views

how do I assign multiple IP address when boot

Currently I directly type the following command to bind static ip for eth0 via normal user. $sudo ifconfig eth0:1 192.168.20.66 How do I run this command when boot Ubuntu without typing password? ...
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1answer
1k views

How do I enable my wireless card? (Dell Inspiron 9400 with Ubuntu 12.10) [duplicate]

Possible Duplicate: How to Install Broadcom / STA Wireless card (BCM43XX) I am at a complete loss as to what to do here, I spent hours trying to get my wireless card (Broadcom) to work, and ...
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1answer
306 views

Wired LAN works for 5 min and then stop working

Internet (wired) works fine in windows but In Ubuntu 12.10 it stop working after 5 min of starting Ubuntu although connection does not disconnect it shows connected even if its not working. My ...
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2answers
799 views

Desktop icon for network

Very new to Ubuntu 12.04 which I just installed on a laptop but I was wondering how I can get the folder in Browse Network to appear on my desktop and dock? Allowing me to be able to click on the ...
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1answer
2k views

Can't discover Wifi Network on my MACbook Air upon first reboot after installation

I recently installed Ubuntu 12.10 on my Macbook Air 2008. Installation went smoothly and I even managed to install other programs, and to navigate on the internet. After the first reboot I got a ...
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1answer
2k views

How do I change proxy settings automatically based on the network that I connect to?

I use my laptop at school and at home. However, internet access to each requires different proxy settings. I searched for a way to do this, but I couldn't find a solution, short of manually setting ...
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2answers
9k views

How do I set up a xen bridge?

I have been reading various pages on how to set up the network for xen. Unfortunately, none of them actually have a full example config. They clearly show what the xenbr0 section should look like, but ...
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0answers
71 views

How do I get the same Wi-Fi speed under Ubuntu as under Windows? [duplicate]

Possible Duplicate: 12.10 x64 - RTL8188CE - Intermittent/Slow Internet Connection I'm running Ubuntu 12.10 and Windows 8 on my laptop. In Windows, using wireless connection, average speed ...
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1answer
633 views

How do I troubleshoot an unstable Internet connection in Precise after trying to install package with synaptic?

I was trying to install packages with synaptic. The internet connection cut off, and now is extremely unstable. It is not a problem with the internet connection itself because now I am on Windows. ...
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1answer
2k views

Not able to understand and map output of /proc/net/tcp

The output of /proc/net/tcp on my ubuntu 12.10 is the following: sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ...
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2answers
1k views

Why doesn't the second “Wired connection” show up when USB-tethering with my Android phone?

I know how to tether via USB using Android to my Ubuntu 10.04 and this How to Tether Android Smartphone to Ubuntu Linux how-to is what I have been doing for the last couple of months (running fine). ...
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3answers
3k views

Can't connect to wireless on Ubuntu Server

I'm having some trouble connecting to a wireless network on Ubuntu Server 12.10. I have the driver installed with ndiswrapper, I can scan with iwlist wlan0 scan, and I'm trying to use wpa_supplicant ...
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2answers
398 views

Two different DNS on router and pc?

My default DNS on my router is set to DynDNS. If I set the router as default DNS on my pc, it would use DynDNS as the DNS. Then what if I set Google Public DNS as DNS on my pc, and DynDNS on my ...
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2answers
728 views

Why can I not access imgur.com and gravatar.com from Ubuntu but can do so from Windows?

I have this strange problem, I am unable to access imgur.com from Ubuntu ! I have checked the /etc/hosts file, there seems to no entry related to imgur. I can access it from Windows(same connection). ...
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1answer
2k views

Slow file transfers through gigabit switch

I'm having problems with real slow file transfers across a network. I have 2 pc's running windows 7 and an ubuntu server attached to a Netgear gigabit switch (GS605) which is linked to a BT home hub ...
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1answer
1k views

Reverse SSH Tunnel Issue

I'm working on setting up an unattended Ubuntu PC with Ubuntu Server 12.04 Minimal, and since this PC will be placed in a remote location with no keyboard or screen (unattended), I need to have a ...
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1answer
576 views

OpenVPN struggling

I've got some problems with my OpenVPN setup. The Setup: -> Ubuntu Server 12.04 -> Two active NIC's: eth0 (default): 192.168.1.0/24 eth1: x.x.x.x (external ip) I've managed to get the routing to ...
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1answer
395 views

How to connect internet across a static IP network?

I'm using Ubuntu 10.04 but without internet at home. The reason I think is I have changed my network connections recently to static IP from DHCP because gnuradio needs static IP for accessing external ...
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2answers
694 views

What package should I install for driver of the Atheros AR8161 Ethernet Controller without net?

I've read in this Question that a new package exists for this driver. But I am confused. There are a lot of packages and I don't know which one do I need. I have a DellVostro-3460, Ubuntu 12.10, ...
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1answer
1k views

How to “prioritise” multiple network connections

I am currently using a mobile internet connection, however I wish to mount a drive via a wifi connection. However, whenever I do so, the mobile internet connection appears to be neglected in favour of ...
3
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1answer
2k views

Identical default gateway with different metric (0 and 100) Ubuntu 12.04 Desktop

I have recently started to configure my network using /etc/network/interfaces for a static IP address. For this I have added the following lines into the file: auto lo iface lo inet loopback auto ...
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0answers
327 views

How can I connect to Microsoft Direct Access?

My company has moved from Cisco VPN to Microsoft Direct Access. I was using network-manager-vpnc to connect from Ubuntu before. Can I use the same to connect to direct access? If not, how can I ...
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1answer
5k views

How to search for wireless networks?

I'm using Ubuntu 12.04. I tried with this sudo iwlist eth0 scan but this doesn't seem to work :(..It says "interface dosn't support scanning" What to do? Please help.. I can't access Internet on ...
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1answer
159 views

How to use wired and wireless interfaces simultaneously?

When creating any socket, we don't provide a device name (like eth0, or wlan0). On my laptop, I have a wired interface (eth) and a wireless interface (wlan). I want to run one process on each ...
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1answer
764 views

Configure a network card on public IP and Wifi usb dongle on LAN

I have an Ubuntu Server running on 12.04.1 LTS with the GUI installed too. My server has an internal gigabit ethernet card which is configured to serve a web app on a Public IP. At this point I did ...
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0answers
467 views

Incomplete system-wide proxy settings on Ubuntu 12.10 [duplicate]

Possible Duplicate: Where are the system-wide proxy server settings? The new: System Settings>Network>Network proxy does not allow me to configure the user and password for my proxy, and ...
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2answers
4k views

Internet Timeouts with TP-Link TL-WN821N v2 wireless usb stick

A short time after accessing the internet, the browser/download times out. Before the timeout, the internet works OK briefly; afterwards, the wireless is still connected with a strong signal, but ...
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2answers
2k views

How do I enable Compound TCP (CTCP)?

I would like to use Compound TCP in Ubuntu. The Wikipedia page says: In addition to Windows, CTCP was also ported to Linux [...] Since kernel version 2.6.17 the module has been incompatible and ...
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0answers
1k views

How to setup VLAN on same subnet as Ethernet [closed]

So this is what i'm trying to do: I have a physical NIC with dev name eth0 with ip 192.168.1.2 and gateway 192.168.1.1 and I want to setup a VLAN with ip 192.168.1.x and same gateway as eth0. ...