Managing and using network connectivity on a Ubuntu system

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12
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1answer
27k views

what does mean dns-seach option in /etc/network/interfaces

can anybody describe me about dns-search directive in /etc/network/interfaces file: iface eth0 inet static address 192.168.3.3 netmask 255.255.255.0 gateway 192.168.3.1 dns-search ...
1
vote
1answer
353 views

Bluetooth DUN Connect with the command line?

I use my mobile (Samsung Corby GT-S3653) to connect to the internet and my mobile network gets automatically disconnected periodically when I'm using it for GPRS so I always have to click that ...
3
votes
1answer
296 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 ...
1
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0answers
3k views

How do I connect a Windows XP Pro and Ubuntu 12.04 together over the network

How do I connect a Windows XP Pro and Ubuntu 12.04 together over the network. I used the networking wizard in Windows to create a networking setup. I am not sure I did it right, so maybe someone can ...
1
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1answer
65 views

Wired Connection issue

I have recently installed Ubuntu 12.10 on my Lenovo G580 series had an issue with the ethernet this was solved after installing Atheros network driver. The laptop was working fine and able to do ...
2
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1answer
265 views

How can I monitor/control applications making network connections?

I found out about nethogs and iftop the other day, and ran them. I was surprised to see some applications running daemons I didn't know about. It's fine now that I know about them, but I'd like to be ...
0
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1answer
393 views

How to connect to WiFi using Realtek 8723e?

I have a Toshiba Satellite with Realtek 8723e 802.11n and running Ubuntu 12.04. I have installed the driver and all was well until this happened. It shows my network, but when I try to connect, it ...
1
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1answer
225 views

Deja Dup resolves host name incorrectly, adds ISP hostname

PROBLEM: I backup to an SSH server via Deja Dup. Recently I am recieving warnings that: my backups are for a computer called my_actual_hostname but the current computer is my_hostname.hawaii.rr.com. ...
1
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1answer
2k views

static ip address from XFCE GUI

I'm interested in the IOGear Universal Wi-Fi N Adapter as a wifi adapter. The fine manual states: Installation without WPS - Mac Step 1: Turn off your computer’s wireless connection (if applicable) ...
2
votes
1answer
988 views

Cisco AnyConnect VPN Client broke my internet

I was using the AnyConnect client when it froze and I had to do a hard reboot of my computer. Now I can't connect to the internet at all, with or without VPN. The Network Connections manager seems to ...
3
votes
1answer
592 views

Clone GIT from SAMBA network share

Has anybody successfully cloned GIT repository to Ubuntu from a SAMBA network share? I have access over file manager and can ls over command line, but cannot clone Also, in git cola, qgit and gitg I ...
2
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1answer
3k views

FortiClient VPN connected but no IP

I am on Ubuntu 12.04. I managed to install the FortiClient after lots of search and mainly by installing everything suggested on these pages : Fortinet SSL VPN Client and Ubuntu 12.04 Forticlient ...
3
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2answers
797 views

How to find the size of internal routing table efficiently?

I need to know how we can find the size of the kernel routing table. I have knowledge that the routing table is stored in /proc/net/route I am presently using wc to count the number of characters in ...
0
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2answers
3k views

How to troubleshoot ethernet port on laptop

I have a problem with my wired connection. To be more specific, my laptop doesn't seems to recognize that I have plugged in an ethernet cable. I tried to download new drivers for my ethernet card, ...
0
votes
1answer
185 views

how to install driver for atheros ar8161 in ubuntu 11.10

I am completely new in using ubuntu, studying painful and trying to find a way. most discussions are for ubuntu 12.10, so what packages should I install for this driver if I use 11.10?
5
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2answers
308 views

Xubuntu 12.10 : Can't add account to network application

When I try to add an account to Gwibber/Pidgin (which are not system apps), it sends me to the "System parameters". It is impossible for me to add account to this apps. Any idea where it can come from ...
1
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2answers
14k views

Can I use Wifi and cable (Ethernet) networking at same time?

I am on an intranet that is not connected to the internet and a wifi router with connection to the Internet. When am connected to the router, I can browse the Internet but cannot browse my LAN with my ...
0
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2answers
188 views

Share internet (with same IP address)

I am currently housing in a place that allows only a limited number of devices connected to the internet. Problem: I have more devices than allowed. So I have one Ubuntu machine which is connected via ...
2
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0answers
85 views

Problem linking WLAN to Ethernet

So I've been trying to use a laptop who's wifi card doesn't work properly, by using a Lenovo V570 laptop with Ubuntu 12.04 to bridge the two networks. I changed my ethernet network to "Shared to other ...
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0answers
234 views

Why can't I connect to internet using WiFi?

I'm using HP Compaq NX9600. I installed Ubuntu last night and I only can connect to Internet by a wired connection. It doesn't let me choose a WiFi connection. How do I resolve the issue?
2
votes
1answer
670 views

How to make resource available to the network?

I have this Building Simulator application that uses Django. It simulates different actions in a building and you can query it to see what is the temperature inside etc. I set it up on my Ubuntu ...
2
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0answers
497 views

How do I route all my traffic that doesnt go through tor through a vpn?

I have a netbook running Ubuntu 12.10 32 bit acting as a wifi router based off this guide http://nims11.wordpress.com/2012/04/27/hostapd-the-linux-way-to-create-virtual-wifi-access-point/ I would ...
4
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1answer
147 views

Why is this single-word address being resolved? [closed]

I'm running Ubuntu 12.04. On my work network, there's a single-word address (let's call it foobar) that is responding to pings and HTTP requests, only from my machine. The address is not a TLD, just a ...
2
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0answers
763 views

Stateless auto configuration IPv6 in ubuntu 12.04

I have installed ubuntu 12.04. i heard that ethernet interface automatically get a link local address but in my ubuntu box it's not getting link local address. Command ifconfig -a output Link ...
1
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1answer
3k views

DNS suddenly broken in Ubuntu VirtualBox

My Ubuntu 12.04 VirtualBox (Windows 7 host) suddenly stopped connecting to remote servers unless I refer to them by their IP addresses. I'm looking for a way to fix this problem (or at least to ...
4
votes
1answer
683 views

DNS lookup ignores AAAA (IPv6) in favor of A (IPv4)

When I attempt resolve a name that is listed with both record types the OS returns the A record. A trace shows that the AAAA record is returned first followed by A but the application (Apache based ...
0
votes
1answer
521 views

Sharing internet between Mac mini (with Ubuntu) and Android

I have an old Mac mini on which I installed Ubuntu. It works quite fine except for few issues. One of the issues is as follows: I used this Mac Mini as a hot-spot for sharing ethernet -> wi-fi ...
0
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1answer
791 views

problem with my Lenovo G580 laptop

I have purchased Lenovo G580,on 26th January 2013. I installed Windows 7 and Ubuntu 12.04LTS (32bit), but in Ubuntu it was not detecting the network connection. Because of this I wanted to install ...
1
vote
1answer
489 views

Cannot set default gateway to specific LAN

Recently, I am trying to add a default gateway to my ubuntu machine to be able to send/receive packets from an another LAN through the router. However, everything I do the result is the following: ...
1
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2answers
76 views

Is there to tell if Ubuntu won't support certain printers?

My system can't find a driver for a Dell Photo 924 (I downloaded an executable installation app but it bombs). Also it can't seem to find my wireless network printer, a Canon MP560. Thanks for any ...
0
votes
1answer
66 views

Use wifi only when necessary

To optimise my laptops battery life I would like to make it so that wifi gets turned on only when there is a process running which needs a network access. For example when browser or transmission is ...
0
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1answer
131 views

What package is responsible for modem (not) working and how do I downgrade it after a broken update?

Suddenly my USB mobile broadband modem has stopped working and is completely unable to connect. I have done nothing, so it's surely some recent update of some network/modem related package (probably ...
5
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2answers
1k views

Is there a way to save username and password for print authentication?

I saw this this question and followed its answer, but the problem persists for me. Once I send a document to print, this dialog box (in figure) opens up and shows "Held for authentication". Then I ...
0
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2answers
1k views

Ubuntu 12.10 Slow Download Speed [duplicate]

I'm using ubuntu 12.10. Although system is quite fast, I have a very slow download speed. Can anyone help me to fix it? Thanks!
2
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1answer
4k views

What is the Ethernet driver in Ubuntu 12.10?

I have been asked by the IT people at my work to uninstall and reinstall my Ethernet driver in order to try and fix a connection problem. When looking in Software Centre, I find those packages when ...
1
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0answers
31 views

Bash Script to set “system wide” proxy settings [duplicate]

I am wondering if there is a command (or series of commands) that would do the same thing as network-network proxy-apply system wide. I believe I can export a variable, but I think that that button ...
0
votes
1answer
243 views

DNS Address For All Future Connections Ubuntu 12.10

I'm using Ubuntu 12.10 and usually use OpenDNS or DynDNS for each of my network connections. However it can be a inconvenient having to set the DNS address for each connection individually... Is ...
1
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2answers
237 views

What are the advantages and disadvantages of using WICD? [duplicate]

I've been wondering on what are the advantages and disadvantages of WICD Can somebody please tell me?
1
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1answer
6k views

Access Windows PC over network from command line [closed]

I am trying to access a Windows PC on my network from Ubuntu using the command line. My goal is to retrieve a few files from that Windows box. I don't have access to the Ubuntu GUI, all I can use is ...
0
votes
1answer
360 views

Wired internet isn't working

I would really appreciate help on this. Alright, so after searching for while on why Ubuntu wasn't connecting to the internet, someone told me that it may be the chip I had. The only information I ...
0
votes
1answer
2k views

Ubuntu 12.10 doesn’t recognize Wi-Fi but it’s been connected during installation

While installing Ubuntu I connected it to my WI-fi network. But as installation finished I couldn't connect to that same network again because Ubuntu doesn't see it. It does still see other networks ...
2
votes
1answer
179 views

No network on Ubuntu Server after changing the modem

I upgraded my Internet connection, and after changing the Modem my Ubuntu Server's eth0 doesn't come up. I looked at /etc/netwrork/interfaces, it looks all normal eth0 is set to auto and dhcp # The ...
1
vote
1answer
1k views

Why am I unable to connect to wireless networks?

Seems like a repeated question, but I am not able to find the answer within the question database, so I'll begin with what adapter I have: lspci | grep Network: 06:00.0 Network controller: Broadcom ...
3
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0answers
116 views

a strange issue with ping6 using the 2001:db8: address [duplicate]

I have 2 Ubuntu machines one acting as IPv6 wireless router (running hostap and radvd on wlan0) and the other is connected to that router. The router wlan0 interface has the address ...
4
votes
1answer
201 views

How to use PAM to restrict HTTP access for some users?

I've read that PAM can be used to restrict HTTP access for some users, but I can't figure out how to do it in Ubuntu 12.04. The /etc/security/time.conf man page contains this example: All users ...
4
votes
1answer
2k views

Destination unreachable with ping6 between two local machines

I have 2 Ubuntu machines one acting as IPv6 wireless router (running hostap and radvd on wlan0) and the other is connected to that router. the router wlan0 interface has the address 2001:db8:1:1::1/64 ...
12
votes
1answer
3k views

Nethogs ioctl failed while establishing local IP

When I typed sudo nethogs eth0 in terminal and tried to monitor my internet bandwidth, I got an error ioctl failed while establishing local IP for selected device eth0. You may specify the device on ...
0
votes
1answer
381 views

How can I make the network boot before mountall in 12.10?

How can I make the network boot service come up before mountall loads network shares in 12.10? Currently, mountall attempts to mount network shares before the network drivers are loaded during the ...
2
votes
1answer
639 views

Enabling TCP MD5 signatures in 12.04?

After running a NeXpose scan of one of my servers, I'm getting notice that TCP MD5 signatures may not be enabled. I've looked all over the net and from what I can see this feature should be enabled ...
0
votes
1answer
543 views

Connect WD TV Live Hub

I have a PC (pc1) running Ubuntu 12.10, connected to the router wirelessly. A WD TV live hub is connected to PC using a crossover ethernet cable. Configuration: Wired connection method: shared to ...