Managing and using network connectivity on a Ubuntu system

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1answer
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Ubuntu 12.04 - USB3 issue with mobile broadband usb sticks

I am getting a very strange problem as regards the USB3 port of my laptop under ubuntu 12.04 (My laptop is a Dell Inspiron n14z). The laptop has two USB3 ports and one USB2 port. In order to get any ...
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0answers
208 views

Networking failing on both wired and wireless connections [closed]

Running 11.10 on a Lenovo B570, maybe a month old. When I try to connect to a network, wired or wireless, nm-applet does its normal "connecting" animation, but sort of "spasming" at the end of the ...
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5answers
3k views

How to block, deny or redirect an IP address or website domain

This question popped a couple of days ago and it is: How to block, deny or redirect an IP address or domain name to another IP or web domain without the use of a router or configuring a browser. ...
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2answers
3k views

How to setup a local network over the CAT5 cable?

I use Wifi to connect to the internet, and want to interconnect the two machines I am using so that it is easy to transfer files I can copy from one machine and use the same buffer on another ...
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1answer
1k views

Unstable wireless connection in Ubuntu 14.04

I have recently upgraded to 14.04, and I have realized that after certain periods of time from connecting to a wifi network, my computer suddenly disconnects and i have to disable and then enable wifi ...
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3answers
4k views

apt-get doesn't work behind a proxy

My company uses an HTTP proxy and our various Ubuntu 12.04 servers therefore need to be configured properly, namely by setting \etc\apt\apt.conf.d\80proxy to: Acquire::http::Proxy ...
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2answers
1k views

No mobile data on Nexus 4 Ubuntu Touch

I've installed 29/01/2014 Ubuntu Touch on my Nexus 4 (with .84 radio from Android 4.3). I can make/receive calls and connect to wifi but when I turn wifi off I see a 3G icon flash up two or three ...
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2answers
2k views

Unable to add nodes to MAAS Server running in VirtualBox

I have followed the tutorials here and here . My MAAS master server (running Ubuntu 12.04 server) is already set up in a VirtualBox VM. I have not installed DHCP on this server as I already have a ...
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3answers
3k views

In Wired Connection settings save option is getting grayed out

Each time I switch to manual configuration, of wired connection in Ubuntu 12.10, the save button gets grayed out. As soon as I start setting it in Manually, it gets grayed out.Please help ! One ...
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3answers
8k views

No Wireless connectivity after installing Ubuntu 12.10 on Windows 8

I am new to Ubuntu/Linux. I have installed the Ubuntu 12.10 version on Windows 8. After installation, there is no wireless connectivity. I have searched the forums and tried things that have worked ...
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5answers
7k views

Ubuntu 11.10 network speed [closed]

Just upgraded to 11.10 from 11.04 . My internet speed is VERY slow now. I did a speed test with two similar laptops. The one running windows has a download speed of 14Mb/s while the one running Ubuntu ...
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3answers
9k views

How to change the MAC address of pc? [duplicate]

I am currently using ubuntu 13.04 along With windows 7. But I want to change my MAC address of pc. Is there any way to change it.
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3answers
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How to use Airtel 4G LTE Dongle with Ubuntu?

I have recently installed Ubuntu 13.04 in my PC. Everything works fine except my Airtel 4G LTE dongle (Model MF825A). Ubuntu does not give any option to select 4G LTE when setting up a mobile ...
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1answer
902 views

Bypass Authenticated HTTP Proxy :Ubuntu

Is there any way to bypass authenticated http proxy to something like 127.0.0.1:port, so that we could use it any application, simply by filling out the proxy 127.0.0.1:port (which could be used for ...
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4answers
10k views

Qualcomm Atheros AR8172 Driver fix? (lenovo g500s)

Recently I took a lenovo g500s laptop. the product id is LENOVO_MT_20245. after the installation, it could not recognize LAN network adapter. After googling I found out that it has a Qualcomm Atheros ...
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1answer
4k views

atheros wireless ar9285 driver

I have been having problems with wireless on Ubuntu 10 and above, Mint 11 and above. The problem is in the driver for the wireless... I can see that there is no driver installed and yet it works but ...
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5answers
8k views

Can't connect to wireless on a Dell Latitude 620

I have just installed Ubuntu 11.10 on a Dell 620 Latitude. I am new to Linux and am not very techie. I cannot see how to connect to a wireless network. For the avoidance of doubt I cannot 'see' any ...
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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 ...
6
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1answer
881 views

Disable internet connection from terminal!

The connect automatically option is allowed for my wired "Wired connection 1". Disconnecting the connection works when I do it from the panel's Network -> Disconnect menu. But when I do that with ...
6
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3answers
1k views

Network bonding isn't working correctly

Hey guys I'm having trouble setting up Ubuntu Bonding, following this guide. My interfaces file looks like this: auto eth0 iface eth0 inet manual bond-master bond0 auto eth1 iface eth1 inet ...
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3answers
4k views

Check if IP is static or dynamic programmatically

I'm trying to determine whether my IP has been statically or dynamically assigned in Ubuntu 11.04 from within C. The closest I've come is examining /var/lib/dhcp/dhclient.leases, but that doesn't ...
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2answers
66k views

How to configure eth0 manually?

How to manually configure eth0 in Ubuntu? I don't have any DHCP server. Do I need IP address when I am just going to capture packets?
5
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1answer
2k views

DSL PPPoE connection not working?

I use a wired PPPoE connection to connect to the Internet. What I need to do on Windows to connect to it is put in static IP address, gateway, subnet mask and DNS servers for my LAN card. Next I have ...
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2answers
97 views

FTP to my Ubuntu machine kills my network

I'm having a problem transferring files between my Ubuntu server and other machines with FTP. Basically, if I initiate an FTP request from my Ubuntu to my Mac, it works fine. But if I make a request ...
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2answers
4k 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 ...
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6answers
23k views

Wireless Connected But No Internet Connection (Ubuntu 12.04)

I am using same network for 2 days and everything was normal. However, today even though it shows me as connected to the network, I do not have internet connection. If I use ethernet cable instead of ...
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1answer
2k views

UDP tuning ubuntu - how to?

I'm having some lags with my server running Ubuntu 10.04 on my UDP packets. What should I do to change the settings set for the UDP packets? I think the problem is there. On my ...
2
votes
1answer
827 views

Asus X550L Weak Wifi signal ubuntu 14.04

I'm new to Ubuntu OS. I've installed ubuntu 14.04 x64 on my ASUS X550LC laptop yesterday. The wifi signal is weak & getting disconnected sometimes. Searched all over the web but many site/forums ...
2
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2answers
648 views

Wireless doesn't reconnect after resuming on after the upgrade to Ubuntu 14.04 on my MacBook Pro.

I have a MacBook Pro with it dual-booting with Ubuntu 14.04 and Mac OS X, and a few days ago I upgraded Ubuntu from 13.10 to 14.04. When I suspend and then resume the system, wireless tries to ...
2
votes
1answer
372 views

No wlan after standby

since I use Ubuntu 13.10, I'm experiencing a bug: I activate standby I press any key to continue working on my laptop The computer is on again, but the wlan doesn't work. → The wlan network ...
2
votes
2answers
730 views

Ubuntu 12.10 Network Connection menu GUI doesnt work properly

Many a times I have seen When I click on network connection(besides volume icon), I am unable to select any options. When I hover over VPN connections, the list shows nothing. I have added many VPNs. ...
2
votes
1answer
7k views

How to install Netgear N-300 UAB adapter WNA3100 on Ubuntu 12.04

After a fresh install of Ubuntu 12.04, the first thing I'm trying to do, is to setup my wireless adapter. I can see it using lsusb: beer@beer-linux:~$ lsusb ... Bus 002 Device 006: ID 0846:9020 ...
2
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1answer
8k views

Network authentication not working

I just installed Ubuntu 12.04 and Im trying to connect it to my NAS. It connects fine to folders where there are not authentication needed. However, if I try to open a password protected folder it ...
2
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3answers
11k views

Ethernet conection not working Atheros AR8152 OS 12.04

I have instaled Ubuntu 12.04 but my network conection doesn't work and i know it's becouse of the drivers I've run $ lspci | grep Ethernet and this is the result 02:00.0 Ethernet controller: ...
2
votes
1answer
1k views

ConnMan not detecting already existing wireless network

Old title : Wireless connected, but no internet until I re-add network Every time I boot my Laptop, it doesn't connect to Internet. Although upon boot it does say "Connected to ", but when I try to ...
2
votes
2answers
680 views

How to enable Nautilus mounted remote shares in a file system dialog

I can see the remote share from nautilus and browse to it. I want to access that share from another application in this case, Eclipse - which is using the standard open file dialog. Is there a ...
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1answer
3k views

Network Manager Icon disappeared 14.04

So a couple of weeks ago my network manager icon stopped appearing; I still get automatically connected to my saved networks and the internet works fine, etc. If I go into System Settings and look at ...
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2answers
648 views

Adding Canon Pixma MX860 to Ubuntu 14.04

I have a Canon Pixma MX680 all-in-one hard-wired to my LAN. Trying to add a printer using Settings | Printer | Add Printer | Network Printer gave me a whole bunch of choices--Find Network Printer, ...
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1answer
200 views

how to give user server name instead of ip when connecting through SSH?

I have a virtualbox on which I have installed ubuntu 12.04. My host computer is Mac OS (mavericks). I did a SSH key copy to my remote (which is ubuntu server and I call it myubuntu). when I did ssh ...
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1answer
216 views

Cannot locate wireless networks on Acer Aspire M5 laptop

I just purchased an Acer Aspire M5-583P laptop and installed Ubuntu 14.04 on it (this is not the machine I am typing on now). Upon restart I am unable to connect to the internet and am not able to ...
1
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1answer
108 views

setting up apache2 webserver — differences between behaviour within my intranet and outside

I am new to apache2. I have an ubuntu 12.04.4 LTS machine in my home, and just installed apache2 on it. I wanted to set up a webserver running on a port other than port 80 (my router uses port 80). ...
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2answers
195 views

Setting a hotkey for connecting and disconnecting a network connection in KDE environment

Is there a way to set a hotkey for toggling connection through a network cable: Also if I have a command in command-line that can do this or a piece of C++ code that does this I can set a hotkey ...
1
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1answer
193 views

Ubuntu 12.04 LTS Network Icon Mistaken

After some diagonic processure, I've found that my wireless network has not yet resolved but my wired connection has mistaken the wrong icon. eth0 Link encap:Ethernet HWaddr 20:6a:8a:3f:70:90 ...
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2answers
341 views

Why my roommates' connection to the Internet is lost, when I'm connected to our router on Ubuntu?

We have 4 computers in our flat. When I'm starting to use Ubuntu and when I'm connected to our network, at least one of them has connection problems, that is, their connection status says that ...
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1answer
13k views

ubuntu on 14.04 hyper-v connection problem

I recently download the new disk of 13.04 of 32bit. I have Hyper-v on windows 8 64bit. I try to operate 13.04 on hyper-v but i can't connect to the network. I have already set at hyper-v manager that ...
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1answer
6k views

Toshiba Satellite C850, Wlan, rtl8188ce not working

I installed Ubuntu 12.04 onto a brand new Toshiba Satellite C850 64 bit laptop. Wlan does not work, Tries to connect, gives up after some time. $Windows7 works 100%. There appears to be a problem ...
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2answers
1k views

Networking 3 Virtual Machines

How do I set up a network with three virtual machines using Virtualbox and Ubuntu 12.04 32-bit so that they all run together?
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1answer
12k views

How do I share a folder on SAMBA?

I want to share my home folder with my Windows machine, but I have no idea how to share the folder. I can't find any up-to-date guides on Google, so how can I share my home directory?
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2answers
10k views

DHCP not working on new install

A new Kubuntu 12.04 install is not getting IP addresses from either the wired connection nor from any wireless connection. The cables / router ports / wifi adapter / access point are all known good ...
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1answer
1k views

No internet connection after update 12.04

I updated 12.04 and then not able to connect to internet via firefox or thunderbird email. It is a wired connection. ifconfig output: eth0 Link encap:Ethernet HWaddr 54:e6:fc:85:0b:63 ...