Managing and using network connectivity on a Ubuntu system

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2answers
293 views

Starting over and new to Ubuntu

We have been having repeated problems with our interent service and using windows xp & sp3 (users and premissions) I see no need for them. I started with computers long before windows. Every since ...
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2answers
1k views

Upon booting, wifi won't work until disabled and re-enabled

After booting Ubuntu 12.04 64 bit, I am not able to connect to Wifi, until I disconnect and reconnect. This has been happening for a while but I am finally getting tired of reconnecting after a boot, ...
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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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2answers
10k views

Can't connect to windows 7 ad-hoc network

Good day! I have installed ubuntu 12.04 on my laptop and I need to have network connection on it. Have a desktop PC, where I've created ad-hoc wi-fi network(Windows 7) and can't connect to it. So, ...
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1answer
351 views

Why does my Empathy work with wifi but not with wvdial on 12.04?

I really need help for this issue . My empathy works well when I'm online using WIFI .. but it does't work when I'm online using wvdial. . in ubuntu 11.10, empathy works great.. any ideas to fix ...
2
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1answer
7k views

Network-Manager restart impossible

~$ service network-manager restart stop: Rejected send message, 1 matched rules; type="method_call", sender=":1.77" (uid=1000 pid=10033 comm="stop network-manager ") ...
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votes
4answers
24k views

How do I set up file sharing between two Ubuntu laptops on my wireless network?

I have two laptops running Ubuntu 12.04. Both connect to the same WIFI network to access internet. How do I connect them to each other so that I can access files on one from another and vice versa? ...
0
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1answer
975 views

Are these dmesg gaps causing my 12.04 to boot up slowly?

I am having a really slow boot on ubuntu 12.04. Below is my dmesg log's major gaps: [3.704928] EXT4-fs (sda6): mounted filesystem with ordered data mode. Opts: (null) [26.933486] ...
2
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2answers
588 views

no wired or wireless networking on new install [closed]

This is a new install of Ubuntu. I ran 12.04 from a usb drive for a day or so, and had no issues outside of some latency that is more due to the lack of RAM on my aspire one D255e than to OS. I had ...
0
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1answer
54 views

How can I print a file using a printer connected to a different machine on the same LAN

What's the simplest/best way to print files from any local machine, using a printer connected to only one of them.
6
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1answer
5k views

Static IP configuration causing apt-get errors

I am getting errors when running apt-get update or when installing new packages. Although this only happens when the server configured for a static IP address. Changing the configuration back to ...
0
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1answer
313 views

Quickly and Python Twisted

I am creating a Quickly application that makes use of Python Twisted. When the user launches a window, I want to start the Twisted server I wrote. However, when I do this, it freezes the GUI, because ...
6
votes
1answer
4k views

Configuring the dnsmasq instance started by connection sharing in NetworkManager

I've got a laptop running Ubuntu 12.04 that is sharing its wifi connection to another machine through the eth0 interface using NetworkManager. This seems to be done by dnsmasq. Now I need to set up ...
1
vote
1answer
496 views

Upgraded from 11.10 to 12.04 now no network access

A few weeks ago I decided I should enter the Linux world and read that Ubuntu is the most widely used release. I installed version 11.10 and it worked perfectly. Just this past week I decided I would ...
1
vote
0answers
859 views

How do I set a system-wide proxy in Lubuntu (or LXDE)? [duplicate]

Possible Duplicate: How do I set systemwide proxy servers in Xubuntu, Lubuntu or Ubuntu Studio? In Ubuntu with Unity, we have an option to set a system wide proxy. When I tried Lubuntu ...
1
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2answers
72 views

Why is Update Manager non-responsive and why is my wireless off?

I am new in using Linux. The problem I'm having is with the update manager. I have it pinned to the launcher but when i left-click it does not respond. When i right-click it it responds by showing me ...
0
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1answer
1k views

Monitor Internet Usage on Ubuntu [duplicate]

Possible Duplicate: How can you monitor internet download usage? Any idea how one would monitor internet usage on a laptop to find out if any unauthorised program is making internet ...
7
votes
1answer
8k views

Ubuntu 12.04 recovery mode root shell has no internet connection

I'm debugging some things on my computer and I boot into recovery mode from the grub menu. Then it gives me a bunch of options on what to do next, and I select the one that drops it to a root shell. ...
3
votes
2answers
6k views

Bridging: Loosing WLAN network connection with 4addr on option - Why?

Question: For use with my Xen VM, I need to create a virtual network interface (vif) that is bridged to wlan0. If in /etc/network/interfaces I add auto xenbr0 iface xenbr0 inet dhcp And ...
6
votes
1answer
2k views

Block Ping from a specific IP

I am on a private LAN 192.168.1.0/24. My ip is 192.168.1.3, I want to block only ping requests from 192.168.1.2. I am running ubuntu 11.10. I found two links First tells how to block an IP but not ...
0
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2answers
723 views

Thinkpad x220 wireless network slows down after some time

I installed Ubuntu 12.04 LTS on my Thinkpad x220. When I connect to a wireless network, the network speed starts out normal. But after a certain period of time (say, 10 minutes), the network speed ...
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2answers
9k 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 ...
2
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1answer
5k views

Setting up a Network Printer

I have a Canon MP970 printer and I want to setup network printing and scanning on my laptop. I got it set up on my desktop (running Windows 8 Release Preview x64). How do I start?
3
votes
1answer
413 views

Resetting network adapter?

I'm running Ubuntu 12.04. I get a strong wireless signal throughout my house, and the wireless symbol in the upper-right-hand corner shows that it's connected. The problem is, occasionally I am unable ...
0
votes
1answer
963 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

How to set-up DSL dialer for Ubuntu 12.04 LTS

I have just installed Ubuntu 12.04 LTS and I'm unable to get my DSL dialer working properly. To set this up in Windows 7 I had to do following: Control Panel ---> Network and Intertnet Network and ...
0
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2answers
765 views

Connection to openVPN Access Server

we are using an openVPN Access Server and I would like to connect to it via the VPN network setting (network-manager-openvpn). I downloaded the client.ovpn and I can connect to the server via the ...
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votes
4answers
24k views

Ubuntu 12.04 network printing through Windows Samba server

I have to print through a Samba server sharing an HP printer. After upgrading to 12.04 I'm no longer able to get it to work. The printer is shared through a samba server and I need to provide logon ...
2
votes
1answer
239 views

What's the best way to get a file from one computer on my network to another?

I have a desktop, a laptop running ubuntu and an old box running ubuntu server with no gui or monitor. I need a reliable way to move files from the desktop and the laptop to the server. I am now ...
1
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2answers
3k views

static ip issue

I just installed ubuntu 12.04 and I'm trying to set up my internet access. I just have a wired connection so it should be quite simple. My computer has two interfaces, eth0 and eth1. I'm not sure ...
0
votes
1answer
199 views

Network connection problem

I am using ubuntu 11.10 LTS. when I switch on my lappy, the network connections i have created works fine, but after sometime (not always) they disappear and no connection lefts available for use. ...
2
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0answers
152 views

Problem enabling “networking” options GUI

From couple of days I'm facing this problem? When I turn on my system (I'm using ubuntu 12.04), I dont get various networking option's when I click the networking option (in top right corner of the ...
1
vote
1answer
757 views

How do I configure networking when using XEN on 12.04 Server

I'm following this guide, https://help.ubuntu.com/community/XenProposed, and I'd like to setup a static IP address, but I don't know how. I'm using 12.04 Server. This is the step I'm having trouble ...
9
votes
2answers
5k views

How do i find out which program is using internet and how much? [duplicate]

Possible Duplicate: How do I find out which process is eating up my bandwidth? Sometimes there are unusual Internet activity in my Computer. Modem's lights are always blinking and When I ...
2
votes
1answer
7k views

L2TP connection fails!

I've installed l2tp-ipsec-vpn but when I try to connect to the vpn server I get error 500. Here are the logs: Jun 17 12:54:37.449 ipsec_setup: Stopping Openswan IPsec... Jun 17 12:54:38.858 Stopping ...
8
votes
4answers
25k views

How to make dhclient forget its last DHCP lease?

What I'm trying to achieve is to get cold-start, zero-state DHCP lease which means forcing dhclient through the full discovery and configuration process (DHCPDISCOVER–DHCPOFFER–DHCPREQUEST–DHCPACK as ...
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2answers
3k views

Connecting to multiple networks simultaneously?

Does connecting to multiple networks with different subnet in Ubuntu actually require some extra steps to work correctly? I have 2 network interfaces on my computer, one is wired nic and the other is ...
0
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1answer
262 views

Freezes during network activity [closed]

When I install some app from Software Center or just download Dropbox folder system begins to freeze: almost all running apps stop working and cursor freezes. How to recognize a problem? System: ...
2
votes
2answers
7k views

Connecting 2 ubuntu machines as a LAN

Hi i am trying to connect 2 ubuntu computers as a LAN. In my current setup I have: One machine running ubuntu 11.10 with Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet ...
1
vote
1answer
2k views

Unable to connect to wireless network on Dell Inspiron 1525 [duplicate]

Possible Duplicate: Wireless doesn't work on a Broadcom BCM4312 I have been using Ubuntu since 9.04 and am upgrading with every new version release. Recently I have upgraded my laptop ...
3
votes
2answers
3k views

testing dhcp server locally on one physical machine with virtual machine

I'm writing simple program to configure and monitor DHCP server on my Ubuntu 12.04. What I'm trying to achieve that my physical machine will be DHCP server and my VM (virtual machine) get one lease ...
0
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2answers
520 views

Setup LAN connection with Windows Guest

I want to setup a samba server on My Ubuntu host for My Windows Guest in Virtual Box. The Question is : How can I achieve this or Is it possible? Note: I am not trying to use the shared folder ...
4
votes
2answers
5k views

Server error (-5 - No address associated with hostname)

This seems to be a common problem with 12.04. I've done the searches and found various and sundry replies, but I've yet to find a solution to my situation. I've installed 12.04 32bit on a server box ...
0
votes
2answers
928 views

Network is only available in recovery mode

I am using Ubuntu 12.04, unity. If I boot regularly, there is no internet access. There is no network icon in the unity panel nor does the "network connections" program show anything. However, if I ...
4
votes
3answers
20k views

How to install Intrusion Detection system in Ubuntu 12.04

Basically i m looking for some Intrusion Detection system.... so i find snort is one of them , soi i need step by step configuration to install snort & some snort web-based monitoring tool ...
2
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0answers
266 views

My wireless network does not connect [closed]

I have just started using Ubuntu, and have always been using windows, so I am a bit of a newbee here. I installed the 12.04 Precise Pangoline version the other day, and everything seem to work fine, ...
4
votes
8answers
14k views

WI-FI doesn't work (Hard Blocked)

Yesterday I installed Ubuntu 12.04 for the first time (I've always been a Windows user) as I was at the office and I had the Ethernet connected. At home I only use WI-FI. When I started Ubuntu it ...
0
votes
2answers
467 views

New install 12.04 64bit dual NIC's, both DHCP, no route until one card disabled [closed]

Fresh install on Asus P7T deluxe. Which has twin NIC's onboard. Both cards have cables attached to a switch with IP's from DHCP and a valid route to the internet. Internet connectivity fails until ...
4
votes
2answers
3k views

Awesome WM Does not Search for Wifi Networks?

When I start Awesome WM, it works fine but it does not start the daemon/application that searches for and connects to wifi networks. How to make it do that both on startup as well as on demand since ...
16
votes
2answers
35k views

How to use host names rather than ip addresses on home network?

I've a small home network up and running and managed to set up ssh. Can anyone tell me what I need to do to refer to one computer on the network from another by host name rather than IP address (which ...