Managing and using network connectivity on a Ubuntu system

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11
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3answers
18k views

How do I connect to a server with thunar in Xubuntu?

In Ubuntu running Gnome 2 you were able to select "Connect to Server" from the Places menu and you would get a graphical connection to whatever server you connected to. Example: How can you do ...
11
votes
1answer
866 views

hp-probe find printer network or alternative

I am working in a environment where we have different network. One of them are used for printers (192.168.x.x) and 1 for wireless network (10.1.x.x). I need to add a printer HP C3505 (192.168.x.x) on ...
11
votes
7answers
95k views

How to configure proxy authentication to work with Ubuntu Software Center?

I have tried put in apt config Acquire::http::proxy, and in Network>Network proxy with and without user:password@server:port and using environment variables http_proxy and https_proxy. Nothing seems ...
11
votes
4answers
25k views

Editing network interfaces without system rebooting

I'd like to make some changes to my networking configuration by editing my /etc/network/interfaces file. What's the cleanest way to make changes to this file and have them take effect, without having ...
11
votes
2answers
4k views

How to configure an OpenVPN Client Router

I am attempting to set up an OpenVPN Router so that I may connect my tablet (wireless) and Blu-Ray (wired) to a paid VPN service in another country on Ubuntu 12.10. I have successfully done this using ...
10
votes
3answers
9k views

How do I find out the name of the SSID I'm connected to from the command line?

Neither iwconfig nor iwlist seem to be able to do this for me.
10
votes
2answers
19k views

Cannot connect to WPA2/WPA Enterprise (PEAP and MSCHAP)

I cannot connect to my campus Wi-Fi connection through Ubuntu 13.04 but I can do the same through Windows. [ 1293.944518] wlan0: authenticate with 00:1a:1e:d5:f0:30 [ 1293.953216] wlan0: send auth to ...
10
votes
2answers
7k views

How to disable/enable automatically connecting to WiFi?

Whenever I restart my WiFi router, Ubuntu tries to connect to my neighbours' WiFi networks. There's over 30 wireless networks in the area. Ubuntu prompts me for the password to all of those. This is ...
10
votes
5answers
11k views

Why does Skype suddenly fail to log in? Turns out, it's tor!

I am not sure if I'm looking at a network problem or a bug here. Since the update to 4.2.0.11 my Skype can't connect any more. My room-mate has the same problem. We're both on Ubuntu Raring Ringtail ...
10
votes
3answers
35k views

KVM Bridged Network Not Working

I just installed KVM on my Ubuntu Server according to this guide : https://help.ubuntu.com/community/KVM/Installation Then prepared a bridged network as shown in here : ...
10
votes
6answers
4k views

How to control an Ubuntu PC from another Ubuntu PC over Internet, using mobile broadband connections?

There are two Ubuntu PCs called A and B. A and B are connected to the Internet using two separated Internet connections. (In my case, two mobile broadband connections ppp0 x2 ) Each connection has a ...
10
votes
1answer
3k views

Automatically disable wifi (wireless) when wired?

What's the best way to automatically disable my Wifi/wireless connection whenever I plug in a wired Ethernet cable? I'd like it to be re-enabled when I later unplug the wire. Also, I sometimes like ...
10
votes
4answers
4k views

Why does my internet speed roughly *double* when switching from Ubuntu to Win XP?

From the same Ethernet-socket from the same machine (IBM Thinkpad X41) I get > 40 Mbps from Win XP ~ 18 Mbps from Ubuntu Apart from the fact that I'm officially paying for 50 Mbps and that for ...
10
votes
8answers
16k views

How to make my proxy settings change depending on the network I connect to?

My company's corporate network requires me to set a network proxy to access the net, but when I am anywhere else, I don't need it. The proxy settings in Ubuntu (System -> Preferences -> Proxy server) ...
10
votes
4answers
7k views

Wake from hibernate on ssh request

Is there a feature (or aptitude package) in Ubuntu 10.04 that will wake my computer up from standby when it gets an ssh (or other webrequest). I've been trying to put my computer in hibernate/standby ...
10
votes
4answers
7k views

How do I configure WiFi to log in to WPA at boot time, regardless of user being logged in?

How do I set a system wide wireless WPA password that starts at boot time, allowing me to SSH in to the machine from outside, for example? I'm running mythbuntu. Until I log in, WiFi doesn't connect, ...
10
votes
3answers
7k views

Any way to restore connect to windows share as a different user?

When I upgraded to Ubuntu 13.04 the file manager lost the ability to connect to windows shares as a specific user(from 'connect to server') from the file manager. I could be connected to z share as ...
10
votes
1answer
2k views

How can you broadcast a network share (ftp/sftp/webdav) so that it shows up in nautilus for other users

Is there a way to broadcast a network file sharing server that is using a protocol like ftp, sftp, webdav, so that it shows up in naulilus under network:// . I once connected to network where I ...
10
votes
2answers
5k views

Extend Desktop to Monitor over LAN

I want to make use of an old laptop by extending my the desktop from my main PC onto the monitor of this other, old laptop over a LAN connection. I've looked into Xdmx/dmx, but the project seems to ...
10
votes
1answer
12k views

Networking with Multiple Nics

I have an Ubuntu 12.04 server with 4 Network adapters in it. I need to use each NIC for a separate function. Here is a description of my setup: etho = 10.234.0.2 netmask = 255.255.255.252 gw = ...
10
votes
2answers
372 views

Is it possible to store user's home directories remotely?

I work in a small office with 6 PCs and a server. I'm looking at installing Ubuntu on all of the computers, but I'd like users to be able to log in to any one of the computers and be able to access ...
10
votes
5answers
7k views

Transmission won't connect to any peers

After my upgrade from Ubuntu 12.04 LTS to 12.10, Transmission won't download from an anti-leech tracker (ALT). If I download a torrent via Magnet Link, everything works fine, but if I download from ...
10
votes
2answers
1k views

How to stop Network Manager from continually prompting for wireless password

How do you prevent Network Manager from continually prompting for wireless password when it tries to reconnect after the connection temporarily drops? Unlike this post, this happens for me without ...
9
votes
9answers
16k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
9
votes
3answers
27k views

What's the default /etc/network/interfaces?

I messed up my network configuration. Can anyone help me and copy the default /etc/network/interfaces?
9
votes
4answers
6k views

Name resolution on home LAN?

Is there an easy way to allow my other computers to resolve my hostname over the network without having them edit their hosts files or their DNS settings? Some of the computers are on Windows.
9
votes
8answers
39k views

How to check if Network Proxy is really applied?

I'm trying to set Network Proxy to use my LAN's internet connection to update packages. while the proxy settings works on my firefox, but the package manager still cannot connect to Internet. I have ...
9
votes
10answers
5k views

Can't browse the internet nor ping a host, but dig works

I am not able to browse any websites. Please take a look at the following error: karthick@karthick:~$ ping www.google.com ping: unknown host www.google.com Update ...
9
votes
2answers
1k views

Is it possible to auto-mount sshfs

Is it possible to auto-mount a remote FS using sshfs upon instantiating a proper VPN connection? Allow me to explain the scenario, I'm working remotely, to do that it helps if I can mount my home dir ...
9
votes
1answer
21k views

What are ICMP redirects and should they be blocked?

After enabling ufw and the Tiger security auditor, I see warnings saying: The system accepts ICMP redirection messages What are ICMP redirection messages? Should they be disabled for security ...
9
votes
5answers
3k views

How do I share files on my home network?

I would like to set up a home network with the various Ubuntu machines I have at my home. They are all running 10.04. It would have to be able to share files and maybe even chat. :) Any information ...
9
votes
2answers
539 views

Application with Output similar to the GUI output of “WireShark”

I know that WireShark allows live packet capturing as well as details being displayable in the GUI. Is there any similar program that operates on a CLI, rather than a GUI? This is intended for use ...
9
votes
3answers
4k views

configuring wireless on command line interface

Sometimes I boot into recovery kernel with CLI and networking for troubleshooting my laptop. So is there a way to connect to a wireless router or AP over command line? If it is possible what are the ...
9
votes
3answers
2k views

Is there a tool for validating /etc/network/interfaces files?

I always like to test new config files before deploying them--with tools like apachectl configtest and named-checkconf. It's rare that mistakes crop up, but catching them before deployment ...
9
votes
4answers
17k views

Cannot connect to Samba share from Nautilus

I have Ubuntu 10.04 and I would like to connect to my Samba shares which are on a DLink DNS323. From Nautilus in "Places" -> "Network" I can easily navigate to the DND323 and see the available ...
9
votes
4answers
2k views

Enable networking without the gnome-applet

I've switched to XMonad as my window manager. Sometimes when I put my laptop to hibernate, it's hanging and won't shut down. I have to force it off by pressing the powerbutton for 5 seconds. After I ...
9
votes
2answers
7k views

Network load-balancing with Network Manager

Can i use Network Manager to connect to multiple networks so they can share the load?
9
votes
1answer
7k views

changing 127.0.1.1 back to 127.0.0.1 — will it break anything in Unity?

The /etc/hosts file defaults your hostname to 127.0.1.1 rather than 127.0.0.1 127.0.0.1 localhost 127.0.1.1 my_machine I've already found out why. But that was giving me problems testing some ...
9
votes
5answers
5k views

Bandwidth Aggregation with multiple 3G cards?

I have multiple 3G data Cards as well as a wired connection to the Internet. I can connect each of them separately and access the internet. Is there any way i can aggregate the bandwidth of these ...
9
votes
2answers
9k views

Slow shutdown due to modemmanager and .. nm-dispatcher.action?

My ubuntu is slow to shutdown, and the culprits seem to be modemmanager and something called nm-dispatcher.action. On shutdown I get a message on the terminal saying something like "asking all ...
9
votes
1answer
15k views

Network indicator disappeared in Lubuntu [closed]

I just upgraded to Lubuntu 14.04 from 13.10 successufully, via do-release-upgrade. But after reboot, I found that the network indicator has been disappeared, so I cannot switch different network ...
9
votes
1answer
3k views

What user-friendly VPN software is available?

Other than the Network Manager applet at the Natty panel, is there any other user-friendly VPN tool available. One which has a GUI and can be easily setup. Ref. question : ConnMan not detecting ...
9
votes
3answers
6k views

lspci and lshw show no network devices

Upgraded to Ocelot over the weekend. All had been working ok until I booted the computer this morning. Now I have no wired network connectivity through the integrated card. Networking icon shows ...
9
votes
4answers
1k views

How to direct Ubuntu to use USB connection for Internet

I posted yesterday regarding how to configure easytether on Ubuntu. I followed the steps and everything looks good from the terminal. But I am not able to connect to the Internet. Currently I am ...
9
votes
2answers
5k views

Connecting to VPN prevents access to normal web sites

I have Ubuntu 10.04 installed with OpenVPN, and when I connect to a VPN, http access to non VPN sites stops working, until I close the VPN connection. To be more specific, both Chrome and Firefox stop ...
9
votes
1answer
5k views

How to force Ubuntu to access the Internet ONLY through a VPN and disable it when disconnected?

Due to privacy issues I'd like Ubuntu to allow applications to send traffic to the Internet only when the VPN connection is established. The thing is that there are some applications like Skype or ...
8
votes
11answers
48k views

Wireless is disabled by hardware switch on Dell Inspiron 1750

I have a problem where Ubuntu (12.04) says there is a wireless network card, but it is disabled by a hardware switch. How do I turn it on? I checked the BIOS, and the wireless card is enabled there. ...
8
votes
4answers
12k views

Wireless disabled by hardware switch on an Asus X550V

I'm using Ubuntu 13.04 and I have ASUS X550V laptop. This is my rfkill list: 0: asus-wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: asus-bluetooth: Bluetooth Soft blocked: no ...
8
votes
6answers
21k views

Restarted computer during update; “the system network service is not compatible with this version”

Yesterday I upgraded my Ubuntu by SSH but before I finished it, I restarted my computer. I know that was not very smart. Anyway now I don't have internet connection, the WiFi or Ethernet is not ...
8
votes
3answers
6k views

Windows hostnames are not resolved

I know that similar questions has already been asked. However, as suggested in the answers to that question I have the winbind package installed and have wins in /etc/nsswitch.conf: hosts: ...