Managing and using network connectivity on a Ubuntu system

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Cannot connect to local webserver

I can no longer connect to my local webserver With telnet. I get the message: "telnet: Unable to connect to remote host: No route to host", it used to work perfectly and i have not made any changes to ...
2
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0answers
95 views

Err occurred using ioctl to control my network card! [closed]

Recently I installed Ubuntu11.10 instead of the old one in my computer. But an odd bug occurred during I used the IOCTL to control my network card using the code like this: struct ifreq ifr; int ...
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2answers
295 views

ubuntu nic card issue

I am trying to install NIC r8168 and it shows everything installed ok. It is a brand new NIC and the lights wont come on when I plug in a ethernet. The NIC is that is not working is eth0. Why does it ...
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3answers
1k views

Ubuntu systematically losing wired connection

I'm working on 11.10 for few recent days, everything was working perfect until today. Updated ubuntu (some certs were updates as far as i remember) and from this time, wired network stops working ...
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3answers
4k views

How to connect MTS MBlaze

i have installed ubuntu 11.04 inside the windows xp. i have MTS Mblaze USB Modem. (my service provider is MTS MBlaze,india) i want to use Mblaze into ubuntu so that i did the following steps for make ...
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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.
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1answer
332 views

I don't want to manually turn on my wireless everytime computer starts up

How can I have this switched to ON automatically when I log in? When I startup my machine, that thing is switched OFF and I have to manually switch it ON before I can use the internet. I can't see ...
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1answer
4k views

How can I create an ad-hoc connection that looks like a wifi connection from a router?

I have a Vizio tablet (running a modified version of Android 2.3.2) which, for some reason or another, refuses to list Windows ad-hoc WiFi connections on it's WiFi connection screen. It can connect to ...
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2answers
8k views

Setting up a network between a host and guest virtual machine

(I'm running ubuntu server 12.04 on virtual box) I'm trying to transfer a file (scp) from my laptop to one of the directories of a virtual machine. I tried sharing folders, but that failed. I'm a bit ...
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2answers
3k views

How do I clear the SMB credential cache?

I used smbclient [...] -U once, and I entered some network credentials. Now when I browse the server with Thunar (xfce file manager), it remembers the credentials I entered. How can I make the ...
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2answers
1k views

How to install gopenvpn?

How do i install gopenvpn and configure it in ubuntu 11.10 x64? I managed to build it from source code, but when i start it i get the following No OpenVPN configuration files were found in ...
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2answers
301 views

Dual OS backup Windows and Linux, including filesharing

I would like to back up and store all my files in one place. I am quite tempted by a Western Digital my book live because of autobackup from Windows and the ability to access the files on the network ...
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2answers
2k views

How can I permanently disable the internal WiFi adapter?

I recently installed a Linksys Wireless-N Notebook Adapter w/Dual-Band (WPC600N), which is working nicely via the PCMCIA slot; however, I cannot find where to permanently disable the internal WiFi ...
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1answer
1k views

Ubuntu 11.10, Wireless Connection but no internet

Right after installing Ubuntu 11.10 using the wubi.exe file, I tried to surf the web in Ubuntu. My wireless connection is found without problem, but firefox doesn't manage to load any pages. Can ...
2
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1answer
1k views

gsm-ussd gives device busy or error (100)

I am using gsm-ussd to try and query my data balance from my 3G modem. When I issue the commands gsm-ussd -m /dev/ttyUSB0 '*188#' or gsm-ussd -m /dev/ttyUSB2 '*188#' I get either "Device or ...
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0answers
206 views

Wireless internet sharing stops working after client disconnects [closed]

I'm running Ubuntu 11.10 with the latest service packs, sharing an ether connection over wireless. Everything works fine, up to the point that the client (a laptop) sleeps or otherwise disconnects. ...
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2answers
21k views

How can I setup SSH so that it is restricted to my local network?

I'm trying to link my new laptop running 11.10 to my old laptop running 8.04 through my router using SSH. This question is asked and answered on ubuntuforums here: ...
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1answer
56 views

Bug or kludge in /etc/init.d/networking

There are some strange code: if ifup -a --exclude=lo; then log_action_end_msg $? else log_action_end_msg $? fi both variants have exactly same code: ...
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2answers
189 views

Statistical Network Usage Tools

I am looking for applications that can do an statistical network usage. I will be putting up a server with squid proxy and would like to know of a program that can show me what pages are visited more, ...
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1answer
261 views

My internet connection slows or dies unexpectedly

I installed Ubuntu 10.04 once again and I'm having some problems which I had before, but I have no idea how I solved them. On Windows, everything's working fine and I had no problems with this. My ...
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0answers
560 views

Cannot create or connect to ad-hoc network in ubuntu 11.10 [closed]

I have got sick of this problem trying to create an ad-hoc wireless network in ubuntu 11.10.Whenever i try creating a new ad-hoc network the network manager does not get connected to it and only shows ...
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1answer
526 views

Can't connect to wireless networks Intel Wireless

I'm a new Linux user and I cannot add or edit any network connections, nor is the system detecting any wireless networks. When I try to access additional hardware from system, it doesn't even open, So ...
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2answers
3k views

Problem detecting wireless networks on a Dell Inspiron 1420

my Dell inspiron 1420 running Ubuntu 11.10 [as of today] cannot detect any wireless networks [and I know there are some in range]. Perhaps a problem with the proprietary driver? How should I go about ...
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3answers
1k views

Network configuration problem

I am using Ubuntu 11.10. In my dorm I have to change network configuration and then if it is successful, I have to enter a user name and password for wired internet connection. Anyway, I had many ...
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1answer
115 views

How to connect to a serverside process on Ubuntu running in a VM?

I am running Ubuntu 11.10 in VirtualBox, on Windows 7. I'm trying to setup a serverside process like Apache on it. How do I configure VirtualBox to allow access to the Ubuntu server process from other ...
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2answers
2k views

Networking and wireless disabled on boot

On my Lenovo X121e running Ubuntu 11.10, I find that both Nerworking and Wireless are disabled in Network manager's menu every time I boot the system. This is a recent feature, it used to work.
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3answers
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Ubuntu 10.04, I cannot get my computer to connect to the internet

So at first I was unable to get my Belkin Surf & Share usb to install on my computer, so then I plugged my computer directly into my router and my computer won't acknowledge any connection. I know ...
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4answers
14k views

What are the significant differences between tracepath and traceroute?

I recently read a bit of an article on HowToGeek that has me scratching my head a little. I've got fairly little experience with Linux though, so forgive me if this is entry-level: "The tracepath ...
4
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1answer
645 views

LibreOffice can not save documents on shared SSH drive - all other applications can

I'm having a problem with Libre Office (all the applications). I can not save a file to any networked drive (using SSH to network). I keep getting a message that I do not have the necessary user ...
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2answers
2k views

Wired connection problem through router

I'm having trouble to connect my Ubuntu 11.10 to internet through ethernet. I installed a router to get Wi-Fi and now (by a wired connection) I can't have internet with ubuntu (but I can with Windows ...
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2answers
657 views

How to setup an alias for local facing interface

I'm trying to set an alias for an interface facing local network, but when i try to bring it up I receive this error: RTNETLINK answers: File exists Failed to bring up eth1:0. Here is my ...
0
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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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2answers
232 views

no internet with a Realtec RTL 8111/8168B chip set

I am new to Ubuntu 11.10 in fact have only used Windows. I am having difficulty getting internet working under Ubuntu. Hardware - ASUS 24" all in one computer with a Realtec RTL 8111/8168B PCI ...
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1answer
247 views

11.04 loses WAN but not LAN connectivity

At apparently decreasing intervals my 11.04 system loses WAN (outside internet) connectivity. Its hardware connection is via a wireless adapter which connects to the system via ethernet; thus the ...
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2answers
320 views

how to force download on one network and upload on another

lets say that i have an apache server running, and two network cards. each card is connected to a different network. C1 is connected to N1, which is an ADSL connection with the port 80 open (so i ...
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2answers
404 views

what software can i use to access SILC Networks?

i want to access a SILC network and all the infos from the official site are missing (site down?!?) EDIT: it seems the site is back up as of last week. Good thing that i got curious and checked it ...
0
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1answer
785 views

Share ppp0 internet connection via wireless modem

I have a wireless router / ADSL modem and a 3G card that I use to connect to the internet over PPP. I want to be able to share my internet connection (ppp0) to my laptop via the wireless router. So ...
11
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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 ...
0
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1answer
221 views

Problems compiling Wireshark from Source (SVN) during .calling /configure

Today I've tried to compile Wireshark locally (no make install) from SVN as I've done before. When I call .configure I receive an error, that the file gtk/doxygen.cfg.in was not available: ...
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2answers
4k views

Bridge/route a wireless connection

I was trying to follow this guide: https://help.ubuntu.com/community/EasyWirelessToWiredConnectionSharing but it does'nt seem to be upgraded. The dhcpd.conf file is in /etc/dhcp and not in /etc/dhcp3. ...
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2answers
714 views

How do i enable mobile networking by default?

I use a USB-Modem to connect to my PC to the Internet. But every time I connect it via USB, I have to enable mobile broadband via the networking applet on the task bar. I know it's not much work to do ...
2
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2answers
5k views

Network GUI Tools in 11.10+ (Whois, DNS Checker, Trace Route, etc…)

In older versions of Ubuntu there was this "Network Gui" program that had a whois option, Tracing, pinging and all the terminal commands for network but in GUI. If I can recall, I think it was before ...
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2answers
1k views

No mobile broadband connection on ubuntu 11.10

I installed ubuntu 11.10 and from start I have no mobile broadband in my network indicator. It used to work form live CD but when I installed it, mobile broadband wasn't listed at all. When I plug ...
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2answers
205 views

Making ubuntu try-able by other systems on the network using Network Boot?

I'm wondering if a ubuntu pc can act as a server to provide the ability to network boot ubuntu's live cd to other system(s) in the network. To make my question more clear: From Wikipedia's article ...
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3answers
5k views

How do I correctly install r8169 Network driver?

My network driver drops out within a short time of logging on. The situation is explained more readily in the following forums thread which has not been replied to as yet. ...
2
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1answer
453 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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1answer
1k views

How do I set up a network bridge?

I have a wireless connection through my laptop that I am attempting to bridge through an ethernet cable to my xbox. So far I have not found anything online that explains how to do this. Can anyone ...
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2answers
374 views

I want to synchronize accounts & desktops between the Ubuntus in my home

In my home we have a number of PCs, all running Ubuntu (except one which runs Mint). Is there a way to automatically synchronize the settings and home-directories of the computers. That way any ...
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2answers
1k views

How to make an internet server as firewall using ubuntu 11.10

i have one static broadband connection which is coming to my Ubuntu server with 2 lan cards, there are 10 more PC's to which i need to provide internet connection through Ubuntu server as well as i ...
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1answer
364 views

When both wired and wireless network connections are active, which one is used?

I imagine that most applications don't even notice that I have two network cards. They ask the kernel to open a socket and they're happy like that. Transparency is great. I'm left wondering: when I ...