Managing and using network connectivity on a Ubuntu system

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6
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5answers
29k views

Cisco VPN not working

I want to connect to my university's Cisco VPN from home, but it always fails. Today I took my laptop to university to see if the IT guys could help (they couldn't) and it worked there so the ...
1
vote
1answer
68 views

Store home partition on and authenticate users with central server?

I am planning to roll out a handful of Ubuntu workstations. We have a Debian (samba) fileserver. I would like to offer a hot-desk situation whereby users could go to any of these ubuntu machines, log ...
1
vote
2answers
332 views

iptables sharing internet connection with restricted access

I am trying to configure an ubuntu server to share internet access from eth0 to client systems on eth1 however I only want to allow access in/out on port 1688 and also resolve host names while ...
1
vote
0answers
47 views

Ubuntu One hangs router sockets [duplicate]

Possible Duplicate: Ubuntu One Limit Concurrent Uploads / Downloads I have Ubuntu One for kde in 12.04 kubuntu. Every time I run it from scratch, e-mail and others stop working properly ...
0
votes
1answer
844 views

Huawei E682 modem not working in 12.04

I'm a user of Ubuntu in Kenya, I've a Huawei E682 modem. When I use it in Ubuntu 11.04 it connects without any problems to the Internet. But in Ubuntu 12.04 I can hardly connect to the Internet using ...
1
vote
1answer
518 views

STA wireless driver error [duplicate]

Possible Duplicate: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do? I've got this problem installing my wireless driver. Is keeps giving me theis message: ...
4
votes
0answers
3k views

Ubuntu 12.04 Wireless hotspot: Android stuck on obtaining ip address [closed]

I recently upgraded to 12.04 and was delighted to find a simple button to start a wireless hotspot in Settings > Networks. This is all well and good, however when I try and connect my android device ...
1
vote
1answer
310 views

Need firmware for my Broadcom 43xx wireless adapter [duplicate]

Possible Duplicate: How do you get the Broadcom BCM4306 wireless card working? Firmware missing for Broadcom 802.11b/g Adapter? Where do I get a wireless firmware (bcm43xx_microcode*.fm) ...
6
votes
5answers
12k views

How to detect a mobile device when it connects to a home wifi network?

What would be the best way to have a server recognize when a specific mobile device (cell phone, iPad, etc.) connects to the network (wirelessly, of course)? As an example situation, a person has ...
3
votes
1answer
2k views

Ubuntu 12.04 doesn't show wired connection, Windows 7 does [closed]

I have a wired connection in my student dorm room which doesn't come up in network-manager with 12.04. It does work with Windows 7 though, so it's not anything hardware related I would say. On a ...
3
votes
1answer
2k views

In /var/log/messages, how do you tell if a connection started or finished?

How can one differentiate between the start of a network connect and the end of one, from the logs listed in /var/log/messages? All the logs look identical.
1
vote
1answer
111 views

How do I connect to available networks from the command-line?

More accurately, how do I tell Ubuntu to obtain an address using DHCP for all the network interfaces it finds (which do not require a password)?
8
votes
1answer
34k views

Can not access Internet (DNS names do not resolve) after update today

I have been using Precise for a few weeks now for work with no problem. Today, I am not able to access any website using either wired or wireless connections. I installed the updates today which ...
0
votes
1answer
458 views

Why won't my computer connect to wireless?

Why can't I connect to the Internet wirelessly? I confirmed that all of my router information is correct and have tried this several times, but my computer still wont connect to the Internet via my ...
1
vote
1answer
2k views

RTL8190 wireless card unclaimed

I have recently installed Ubuntu and I'm having problems with my (RTL8190) card. I followed the steps listed here - Ubuntu Help: Troubleshooting Wireless. After using the command sudo lshw -C ...
8
votes
3answers
3k views

DNS sometimes works, but it is very slow.

I am having DNS problems since upgrading to Ubuntu 12.04 (Precise Pangolin) from Ubuntu 10.04 (Lucid Lynx) yesterday. DNS sometimes works, but it is very slow. I have read the blog post DNS in ...
1
vote
1answer
719 views

Broadcom NetXtreme BCM5721 Gigabit Ethernet unable to connect to Internet

I installed Ubuntu Server 12.04 on an IBM machine which has a Broadcom NetXtreme BCM5721 Gigabit Ethernet PCI Express card. I was able to connect to the Internet during and after the installation. I ...
0
votes
3answers
1k views

Bridged networking in KVM

I'm using ubuntu 10.04 with qemu-kvm installed. I bridged my eth0 to br0. My problem is that The host OS loses connection. Here is my interfaces file auto lo iface lo inet loopback auto eth0 ...
1
vote
0answers
700 views

My server cannot be reached from the Outside Internet, but works fine from the Internal Lan [closed]

I retired my old 1998 series Pentium II computer running Ubuntu 7 server and replaced it using Virtual Box on a much faster and newer PC. The only job of this server is to run an old school Mud ...
3
votes
2answers
2k views

Wireless shows up and keeps asking for password

I installed ubuntu for the first time (first time ever using linux) i used my friends wireless card to update but when i got home and put in my wireless card it asks me for a password i put in my ...
2
votes
2answers
5k views

Using the ZTE MF192 HSPA USB Modem with Network Manager in Ubuntu 12.04LTS

Has anyone been able to use the ZTE MF192 HSPA (Black) modem with Network Manager? If there's a way, please share with the rest of us.
1
vote
0answers
2k views

RTL8111/8168B not worked properly in 12.04 [closed]

Few days ago I install new version of Ubuntu (12.04 LTS) on my PC. This was clean install. I've next network integrated card and it's not work :(. Below information about my NIC: lspci -v 06:00.0 ...
2
votes
3answers
121 views

Finding all other workstations on the network

at my home I have both workstations directly use Ethernet cables to connect to router, and also a few laptops/mobile devices that connect to wifi. Is there a command in linux to see list of all ...
1
vote
2answers
34k views

How to use vsftpd to set up an FTP server and how to access that server from another computer? [duplicate]

Possible Duplicate: GUI FTP Server Recommendation This is my first attempt at using any Linux based system. This is also my first attempt at setting up an FTP server. I'm running Ubuntu ...
1
vote
1answer
195 views

How to dial modem without sudo

I am using ixconn as modem manager because it has many more features than the default network manager. But it cannot be used without root privileges (i.e., sudo). How can I use ixconn to dial my ...
0
votes
1answer
2k views

Network connection on Ubuntu 12.04: 20 seconds to load a web site

I am using Ubuntu 12.04 on a Dell E6520 with Intel® Core™ i5-2520M CPU @ 2.50GHz × 4. I use this version since the beta1. Without any troubles. I have enabled all the update repository (also ...
0
votes
1answer
2k views

How to get a HP Wi-Fi Touch Mouse X7000 working?

I recently bought a very expensive 60 Dollar wireless mouse. This mouse connects to a Wireless Network Card, Instead of using a USB Dongle. I can't get this to work in Ubuntu 12.04. And I don't want ...
1
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1answer
85 views

Multiple networks connected.Which is considered?

Suppose i am connected to two networks- DSL connection. 2.Mobile broadband. Which one will be considered as the base one and will be used?? Because both do get connected at the same time..!!
4
votes
1answer
611 views

How can I access local juju instances from other network hosts?

I'm running juju on a headless machine, and already have networking configured so the rest of the network can connect to lxc guests deployed using the br0 bridge. Unfortunately, Juju creates it's own ...
1
vote
1answer
837 views

Wi-fi internet speed for terminal is slow, internet speed on web browser is fast

I just installed a fresh install of 32-bit 12.04 LTS Pangolin today. When I tried to install a few applications, it was really slow. But when I download a .deb or .tar.gz file from on my web browser, ...
4
votes
3answers
2k views

Why does “ping” work, but “ping -R” fails?

Ping www.google.com works, but ping -R www.google.com fails. Why?
31
votes
5answers
138k views

How do I fix a “Wireless is disabled by hardware switch” error?

I just updated to Ubuntu 12.04 from 11.10 but soon after updating I was disappointed to see that Wireless is disabled by hardware switch. I can not click the button 'Enable wireless' which is ...
1
vote
1answer
414 views

Weird networking issue under 12.04

I am having problems with networking in the command line, specifically with the gem installer (I had similar issues yesterday but can't remember exactly what with). So, I am getting: ...
1
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1answer
3k views

Wired network connection fails after installing Ubuntu 12.04

Having installed 12.04 amd64 desktop from the alternative ISO (I'm using LVM on a RAID5 array), my networking fails after booting into the installed system. It works fine on the 12.04 Live CD and ...
7
votes
2answers
2k views

WIFI looses connection with AR9285 - have to disconnect / connect to regain internet?

I have a G73JW laptop using Ubuntu 12.04. It has an Atheros AR9285 card. While wifi seems to work fine most of the time, about every hour or two it will loose the connection to the internet. The ...
0
votes
1answer
1k views

Can i change the network section of my conky to support my wifi?

So I've been having fun with setting up my new conky which I downloaded recently (i'm running Ubuntu 12.04). I am having a problem with the section of the conky which measures network parameters. ...
1
vote
2answers
4k views

Why is Ubuntu unable to connect to my wireless router? [closed]

I have just installed the latest version of Ubuntu and I want to connect to the Internet using my wireless router. I tried using Ndiswrapper but I received errors. I also tried using suggestions in ...
1
vote
1answer
2k views

Find MAC address of a device connected to my computer

I have a "black-box device" (a credit card reader, to which some klutz lost the admin unlock card...) running an unknown, but primitive, operative system. I need to find it's MAC address. At my ...
1
vote
1answer
2k views

Why can't I connect to unsecure open wireless networks?

I have an open, unsecured router which I can connect to without any issues while in Windows. When I am in Ubuntu, if I click on my wireless manager to see all the networks, then it shows all the ...
10
votes
2answers
6k 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 ...
1
vote
1answer
8k views

How to make ad-hoc network connection? [duplicate]

I can't make ad-hoc from my netbook (Ubuntu 12.04). It has internet source from ethernet. I have tried making from network manager. But it always says 'Wireless Network Disconnected' and can't be ...
2
votes
1answer
930 views

How to share a tethered iPhone internet connection with virtualbox guest os (Win XP)

I mostly connect to the internet via a USB iPhone tethered connection (MyWi app). I have just installed Windows XP guest OS via Virtualbox. How do I connect the guest OS to the internet via my ...
1
vote
1answer
4k views

Facebook access problem, on Ubuntu only [closed]

I have a problem to open any facebook page, it is wierd because on the same computer on Windows 7 I can open facebook and on other devices connected to the same network. But if I connect my computer ...
1
vote
2answers
5k views

Adding a network folder to Clementine library

I have 2 machines running Ubuntu. One of them contains a music library on its windows partition. I can connect to that computer's music library via 'connect to server' and save that location as a ...
1
vote
2answers
1k views

Why is Mobile Broadband connection not shown in the Network Manager in 12.04?

I have created a Mobile Broadband connection using Bluetooth in Ubuntu 12.04 but it is missing in the network manager icon on the top panel of the desktop. How should I solve this problem? When I ...
0
votes
1answer
2k views

Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 ...
0
votes
1answer
1k views

Ubuntu 12.04 slows down wireless network

I am using Ubuntu 12.04 and my husband is using Windows 7. Ever since I installed Ubuntu, when my computer is on it slows down the entire network (when we are both connected wirelessly). We have ...
4
votes
2answers
10k views

Virtual interface shows up in ifconfig but no connections can be be made to it. What is wrong? [closed]

I have a VPS set up with Ubuntu 12.04 on it and am having trouble getting a second IP set up as a virtual interface. I've configured the interface as you can see from my /etc/networking/interfaces ...
1
vote
4answers
3k views

Ubuntu 12.04 and Hyper-V 2008 R2 SCVMM - Network cable unplugged [duplicate]

After attempting to install Ubuntu Desktop 32bit on our HyperV environment - which requires static IP addressing, Ubuntu thinks the network cable is unplugged. It's connected to the correct Team NIC ...
1
vote
1answer
1k views

IPv4 Address Sharing Issue? Trying to map IPv4 address from host OS to BT5 VM [closed]

I'm having a general networking issue in regards to my Backtrack 5 (x64) KDE VM in VirtualBox. The VM appears to be on a separate subnet, but for my purposes, I'd like to include the VM in the private ...