Managing and using network connectivity on a Ubuntu system

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Counting printed pages on a network printer

In my company I have a printer connected to a PC with Lubuntu and this PC is connected to internal network. I would like to make the printer accessible via this PC, however, not just make it a shared ...
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interface device name em1 to eth0 linux 14.04 lts

I Have installed Linux 14.04 lts. I am getting interface device name as em1 and eth0.I want to rename it as eth0 and eth1.
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Make internet app available only within VPN?

I am not sure if I expressed myself clear enough in the question. Just managed to set up PPTP on my server and I want to know how can I make a website be accessible only from VPN clients. I have ...
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OpenVpn bridge problem - Server behind NAT - Client can ping server, default GW but nothing else

first of all, yes I have been searching.. The issue is with setting up OpenVPN in bridged mode on ubuntu Server 12.04. It generally works, I can connect, I get an IP and can ping the OpenVPN server ...
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19 views

Wifi doesn't work on Ubuntu 14.04 anymore!

I've been struggling with my wifi for a week now. Since we changed router and provider(O2 box 6431), the connection doesn't work on Ubuntu anymore, yet it does work on windows (and also on ubuntu with ...
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Problems connecting to my school's wifi.

So I have a lenovo yoga 2 pro with Ubuntu 14.04 installed, and so far I have had to blacklist ideapad_laptop to unblock my wifi adapter. Now I'm having a hard time connecting to my school's secure ...
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Wifi is connected, but after a while ping to access point doesn't work. (Ubuntu 14.04 LTS)

I have an Asus G55V laptop on which I installed Ubuntu 12.04 LTS and which I upgraded to 12.04 LTS last summer. I have the laptop for almost 2 years and so far I had no wireless connection issues ...
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Error fetching interface information: Device not found

Running 14.04 on VMWare player, I am trying to configure a new Ethernet device eth1 through editing /etc/network/interfaces. I have configured a device for eth0, and that is working properly. Here ...
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loading “explicit” iptables rules on boot or interface up

I'like to load iptables rules on boot or interface going up on Ubuntu. Made a search on StackExchange and other places and looks like the most commonly agreed approach is either use ...
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Wifi Intel Centrino N-2230 not working on Dell Inspiron 17r SE on Ubuntu 14.04 LTS

I had to reinstall my Ubuntu system because it was not working properly so I did with a USB installation and I kept my old /home. The Wifi was working good on my 14.10 system and even in Live CD but ...
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Linux Ubuntu with two Interfaces

I'm trying to get NOGOTOFAIL to work with testing Android and I'm trying to follow the walkthrough. The part I get stuck is here: Run nogotofail on a Linux machine with two network interfaces. This ...
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networking Lubuntu to win7

I have tried to get my head around Linux before and would like to try again. I have installed Lubuntu on an a old P4 pc to use as a backup/NAS for a Win7 PC. I have installed it with 3 IDE drives and ...
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Why wireless driver doesn't work

There's a problem with wireless that the ifconfig doesn't show any wlan interface. I made sure that the interface is up by using : ifconfig wlan0 up and the result was something like : wlan0: ...
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23 views

large network latency on localhohst

I have a laptop, which I want to optimize for voip applications. I experience the problem that applications connecting to localhost suffer from large delays. Basically nothing happens for about 2-3 ...
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16 views

ownCloud on Ubuntu 14.04 - ban mechanism?

I have a question regarding ownCloud 7.0.4 with Ubuntu 14.04 Sometimes when I upload or download larger files (like > 300 MB) to ownCloud i get disconnected from server. It looks like my IP gets ...
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Ubuntu 14.04 D-link Dns323

I've been trying to connect to my dns323. I use to have it connected through my wireless router but i moved and no longer have internet but still want to be able to connect to my hard drives in the ...
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19 views

Ubuntu installed on Vmware cannot get access to internet

I installed Ubuntu 14.04 on Vmware, the host machine is Windows 7. However, I cannot get access to internet from Ubuntu. I am not clear how to identify the cause and fix it? Thank you for the help.
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ARP flux how to solve

I have a server with 2 NICs having an IP address in the same subnet, this is what my /etc/network/interfaces looks like: auto eth0 iface eth0 inet static address 192.168.2.155 gateway ...
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Wifi connection deauthenticated by router

I use ubuntu 14.04 and I have an Acer V3-571G laptop. I have an O2 Box 6431 modem which I have received from O2. My wifi connection works fine except when I restart ubuntu or laptop. Next time it does ...
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24 views

use eth0 and wlan0 at same time

I have a Raspberry pi and I have connected it to my laptop via LAN cable in order to remote it, on the other side I want to use my WiFi to use internet. When I connect to both of them one of them ...
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how route between virtual machines in one system

i have one system that works like a gateway . but i want before packets come into my network by this gateway packets be processed by some function , so i want to install 4 virtual machines in my ...
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67 views

Installing the driver for TP-LINK TL-WN727N on Ubuntu 14.04

I am new to Ubuntu and I have problems with my Ubuntu 14.04. I plugged my wifi adapter but it did not work so I guess I need to install the driver manually but I don't know how to do it. I currently ...
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wondershaper doesn't work for redirected traffic

I'm trying to prioritize my network so small packages get through quicker so latency-dependent applications don't get unusable when downloading/watching videos. I want to use one pc(with one nic) ...
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Wi-Fi connecting problem

I am using a USB dongle with AR9374 chip set on it. The Problem is, I can't get it connected to a AP. I have tried to create a wpa_supplicant.conf file in /etc/wpa_supplicant.conf but doesn't work. ...
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Bind9 and Name Collison

I have setup BIND9 as a DNS server for my home network so I can reach other machines via their hostnames. All hosts are on a private network with the domain name hive.local, each reach the global ...
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wicd on ubuntu 14.04 takes too long to connect to wifi

During install of ubuntu 14.04 LTS from a mini.iso I inadvertently managed to change the number of seconds required for connecting to wifi. How do I, post installation-wise, change the number of ...
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IPv6 connectivity drops after 12 hours

I have a VM running Ubuntu Server 12.04.5 LTS. For the last few days the server looses IPv6-connectivity 12 hours after the network restarts. If i restart the network with sudo /etc/init.d/networking ...
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monitor network connectivity faults?

I am suffering poor connectivity when i work at home. Frequently I see write failed broken pipe and other errors indicating that Ive lost connection. I would like to complain to my service provider, ...
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Ubuntu 12.04 Wifi connects but data does not flow

I have installed a new router that is an ASUS N65U with a custom firmwware from Padavan. Every device in the house connects to it fine and has no problems except my main Ubuntu laptop. It does not ...
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29 views

How to access the router UI when it's IP address says “the webpage is not available”? Its not just plug and play as in windows?

I have some TPLink access points (and a travel router that can work as an access point), and want to configure them in order to extend my wifi signal. In windows I just plugged them into the ...
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Ubuntu 14.04.1 LTS has problems connecting to wifi network

It(could not connect to the wifi network) started occuring recently (maybe after some update) that system has problem with wifi connection. I have no idea what solves this but sometimes I have to ...
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WiFi not connecting with Atheros AR9285 Wireless card

Brand new to Ubuntu and I really am impressed on how much better it works compared to Windows OS. The only issue I am having is my WiFi sees my network but it doesn't connect. It connects perfectly ...
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Problems while creating wifi hotspot for Smartphones

Actually i wanted to enable a feature by which i want to make a wifi hotspot for my smart phones from my LAN connection of my laptop. So i tried to setup a it using ap-hotspot. But when i attempted to ...
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Simplescan can't find my network scanner

I've recently had to RMA my epson wf-4535 because it had leaking ink. Epson sent back a new wf-4630. I installed all the drivers from their website and printing works fine now. However, simplescan ...
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23 views

Wifi icon is not displayed

My networking status is on which is shown in first figure But the Networking icon i.e. the wifi icon is missing. How do I bring it back?
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Node Enlistment for the Canonical Distribution of Ubuntu Openstack

After following this installation guide and this more indepth installation guide, I have single functioning node which is both my region controller and a cluster controller (I will refer to this node ...
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25 views

hot-spot wifi with wifi

Sorry by my english Now i live in a big house and when i go to bathroom i cant connect with my wifi, so my question is... Can i extend the signal of my router if my laptop run like a router?? my ...
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Ubuntu PXE boot

I had done the deployment of Ubuntu on the network via WDS. for that I have used commands: wdsutil /set-server /bootprogram:boot\x86\pxelinux.com /architecture:x86 wdsutil /set-server ...
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Get wifi working Lenovo Thinkpad t440 on Ubuntu 12.04

I got an Lenovo Thinkpad t440 but I cannot get my wifi working with a fresh install. Which drivers should I need to download so I am able to run the wifi? I did an lshw -c network and I got an ...
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18 views

Wireless Connection drops every few days

My wireless connection drops every few days, and to fix it I usually have to restart the computer, connect via ethernet, run software update, restart my router, and then my computer reconnects. I ran ...
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84 views

Wifi drops out constantly after upgrade to xUbuntu 14.10

I upgraded yesterday from xUbuntu 14.04 to 14.10, because I hoped to have better bluetooth recognition. (I didn't). Before the upgrade Wifi would drop out seemingly randomly. More often, when there ...
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23 views

Are my standard Ubuntu open network ports at risk???

I am new to Ubuntu (I installed it just 4 days ago) and want to know something about network ports: which port is opened or closed? I read many answers about this field, but I am unable to ...
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What keeps ports 32003 and 25419 open on my Ubuntu 14?

I did a netstat on udp ports and found a service on port 32003 and one at 25419. What are they , how can I kill them at startup if they have no use?
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Internet and Trackpad don't work anymore (Ubuntu 14.04)

So, I just got a new laptop, and because of that I set aside my Ubuntu laptop for a few days. The last time I used it was Tuesday and it worked 100% perfectly. Flash forward to today, I just started ...
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54 views

Internet disappears after few minutes

I have a strange issue. I moved to another city with different Internet and now after being connected to Wi-fi for few minutes (~5) Internet stops working, but wi-fi is still connected. Disconnecting ...
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ip-forwarding issue

I'm trying with ip-forwarding on Ubuntu 14.04. I've read read this tutorial, but after configuring everything like in the tutorial, when I connect another device by an Ethernet cable, this second ...
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Traffic shaper: sfq external classifier not work as expected

Have a Ubuntu 14.04.1 LTS with 3.13.0-44-generic kernel. Also, have a traffic shaper rules: # Add discuiplines for DL device tc qdisc add dev $devDL root handle 1:0 htb default 12 # Add ...
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Define specific internet routing with Network Manager [duplicate]

I have a wireless internet that goes out to the Internet, but I have Ethernet set up for a private internal non-Internet-facing network. When I connect my Ethernet on this private static ...
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Wifi network with 2 phase authentication disconnects frequently on Ubuntu 14.04

My wifi network keeps disconnecting regularly in ubuntu. Moreover, connection speeds are also fluctuating in spite of me being stationary. The network connection is a two phase authentication ...
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Problems regarding the network manager with Wi-Fi networks

I am running Ubuntu 14.04.1 LTS 64-bit and our school uses a network with WPA2 Enterprise security and PEAP authentication without a certificate. The inner authentication method used is MSCHAPv2. In ...