Managing and using network connectivity on a Ubuntu system

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Ubuntu 14.04 Server Cant Connect To Internet

Upgraded my server's software from Ubuntu 12.04 to Ubuntu 14.04 and now the server cannot access the internet. I can ping devices on my LAN, including my modem. When I try to ping any site on the ...
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79 views

Virtualbox - how to route sound from Ubuntu host to Windows guest?

Is it possible to route my audio output from my Ubuntu Host to my Windows 7 Guest in Viurtualbox? So it appears as a line input? I'm thinking of connecting windows to my PulseAudio server, but as far ...
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317 views

High number of ethernet errors. Tool for testing the ethernet card?

I have an Asus Sabertooth X79. I often get corrupted files. I checked the RAM, but memtest finds no errors. To avoid the possibility of disk errors, I tried copying the files to tmpfs. If I copy ...
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215 views

(32) Ad-Hoc mode is not supported by this device. - 13.10 on i5 NUC

Not sure if this is an Ubuntu issue or intel issue. Any insights will be appreciated. I have an intel NUC (D54250WYK) w/ intel 7260 wireless adapter and Ubuntu 13.10. I can connect to my local ...
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58 views

VM can't ping LAN name but sees it via nslookup

I am trying to connect to a network resource from my 10.04.4 VM (VMware Fusion) but the destination is unreachable by name. What is weird is that the name is visible in DNS: >nslookup my.name ...
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235 views

Juju bootstrap node can't access Ubuntu archives via MAAS

I am trying to install MAAS and Juju on VirtualBox. The network configuration of VirtualBox is set to NAT Network. Everything is just fine. I am able to PXE boot. But when I start juju bootstrap, ...
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74 views

Cannot change Wifi settings, stuck on WEP Security

I just started using Linux and as such do not have a proper knowledge of how to use the command line and all of those sorts of things, so please try to bear with me :). I have been able to connect to ...
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213 views

Installing Fritz Wireless USB Adapter

How do I install a Fritz USB wireless adapter on Ubuntu so I can access the internet? I have the software required, but I am not sure what to do next. Ubuntu version 13.04. Output of lsusb: ...
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394 views

Downloads kill WiFi

Just installed 12.10 fresh. Using a run-of-the-mill Netgear N router, and a Netgear WN111v2 USB dongle. THE PROBLEM: I attempt to install anything using update manager, software center, or via ...
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3k views

Playing Age of Empires II multiplayer in VirtualBox Over wi fi network

I installed Age of Empires II (Expansion) in VirtualBox (hosting Windows XP). It works great in single player mode. Unfortunately, I tried playing multiplayer via WI-FI which I created on my Ubuntu ...
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2k views

How can I configure a Canon Pixma MG5300 to print wirelessly?

How can I configure a printer to print wirelessly in ubuntu 12.04 ? I have a canon pixma mg 5300 series, and I am able to print correctly by usb (the drivers were installed). Now I'm trying to do it ...
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377 views

Why does WiFi work with WICD but not Network Manager

So my WiFi can connect with WICD, but not the default KDE network manager. I would like to know why. Do both these applications handle the connection differently? If so what would the difference be? ...
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33 views

Unable to NFS mount from Ubuntu 14.04.1 LTS against QNAP NAS

Note, this is a cross posting question in the QNAP NAS community here: http://forum.qnap.com/viewtopic.php?f=35&t=96526&p=427018#p427018 Any comments and suggestions, as well as pointers to ...
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33 views

Network problem: Chrome would not load sites that Firefox does

I am running a Ubuntu 13.04. I had both Chrome and Firefox installed, and the former does not load most websites. There is no proxy, and I have disabled the firewall. I connect to the internet ...
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21 views

Getting Ubuntu server to resolv new IP for a host name

I run a minecraft server on ubuntu 14.04 LTS on vm's using virtual box. In order for players to connect, their 'account' must be checked with Mojang, at sessionserver.mojang.com. The problem is, the ...
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100 views

Intel Centrino Advanced-N 6200 won't connect to WPA PSK or WPA PEAP. WEP and open works. 14.04LTS

Cliffs: Can't get this to work with WPA PSK or WPA PEAP. Same laptop (Dell Latitude E6410) with a no-name USB Wifi dongle works fine connecting to the same networks. I realize this hardware is known ...
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72 views

Wired USB Ethernet Connection disconnecting sporadicly

first, I'm not a Linux Pro, so please forgive me if I write any nonsence :) So I have quite an unusual constellation. I'm running a Ubuntu 14.04 Virtual Machine on my Mac Pro using VMWare Fusion 6. ...
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66 views

ipv6 network unreachable

Some strange problem here, I have got an ipv6 address by DHCP, however, ping ipv6.google.com gets network unreachable. Other people in the same house using windows7 has ipv6 working fine. So, there ...
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56 views

LXC bridging with two NICs

I am setting up a server to host a number of LXC containers, for now just isolating web and db services. The server I am using has two NICs and I'd like to use one for host traffic and one for ...
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230 views

Ubuntu Server (14.04 LTS) System-Wide Socks5 Auth Proxy

I have recently switched to the server version of Ubuntu 14.04 LTS and am not aware of a way to apply a system-wide authentication socks5 proxy so that all traffic on that computer goes through the ...
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222 views

Problems with Wireless since upgrade to 14.04

My laptop is a Toshiba Satellite L750, which has a Qualcomm Atheros AR9285 Wireless Network Adapter in it. When I was running 13.10 it all worked perfectly fine, but ever since I upgraded to 14.04 - ...
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512 views

No internet connection after the upgrade from 12.04 to 14.04 LTS

Upgraded Ubuntu Desktop Server from 12.04 to 14.04 LTS and it can't connect to the internet after. I've also tried issuing apt-get update command but I'm get an error as below: Err ...
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30 views

Command line failing with https

I'm a bit new when it comes to networking. As a disclaimer, I installed Chrubuntu. The OS was able to connect fine, but it had an unrelated error and required an install and upgrade from 13.10 to ...
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132 views

Add a call function to modem-manager-gui

Modem Manager GUI is very helpful tool for EDGE/3G/4G modem specific functions control. I am using modem-manager-gui 0.0.16-2 with Ubuntu 14.04: It has very useful functions like SMS, USSD, ...
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26 views

Using interfaces file - device is not maintained

I need to set ethtool command at start-up because my router refuse to communicate until I set my LAN card to full duplex mode. I know how to do that using ethtool, but how to preserve changes after ...
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269 views

Unable to get Windows File Sharing (Samba) to Work Under Ubuntu

I would like to set up an Ubuntu machine, where I can store movies, series and music. I managed to get a working share running, setup to /srv/samba/share. I can access the share from my Windows ...
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98 views

Sharing internet connection with tablet over a proxy-server

I have a proxy-server at home and set up my ubuntu accordingly. All works fine. My setup is that you can only gain internet access over that proxy. Now I have setup a raspberry pi with an edimax ...
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122 views

Macvlan interfaces beyond first interface fail to connect.

I've been working on a project to build a set of macvlans on ubuntu. The process I'm using comes from here. In short, I run this set of commands to build and initialize an interface: ip link add link ...
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1k views

Wireless connection error for SOME networks

I have just installed Ubuntu 14.04 LTS and everything about wireless was ok until I come to work. 14.04 recognized & successfully connected to my home wireless network but it does not connect to ...
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787 views

kubuntu 14.04 - wireless connects but cannot ping or navigate

I just installed kubuntu 14.04. Wi-fi scans correctly the networks, connects correctly via WPA to the wifi network, but can't ping 8.8.8.8 or navigate. Any hints? Here follows a report: ########## ...
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28 views

Limit download speed if filesize 20mb

Is there a software like trickle lets say for example? That i can put as a proxy and lets say set it up so that if a filesize that i am downloading is over 20MB it will limit it to 2kb? I found ...
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202 views

Ap-hotspot fail

I've been trying to create an AP wireless network from a usb wifi transmitter. I have been using ap-hotspot to do so. It has got no further than this message on debug mode: Adding system startup for ...
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745 views

How do I set up a reverse dns on Ubuntu 12.04 VPS

As far as I can remember when setting up my VPS and mail server on it, I had configured the mail server correctly. However, a few of my clients get SMTP errors, host mx1.zonnet.nl[62.58.50.9] ...
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69 views

How to access Amazon EC2 instance from Ubuntu 13.10?

I have an Amazon EC2 (Windows) instance which has been created for me and I have public DNS, public IP and the public key. I would like to RDP to this instance from Ubuntu 13.10. I have recently ...
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73 views

please tell me correct way to use usb_modeswitch in ubuntu saucy

I have one mobile router "hw0-2e". (https://www.nttdocomo.co.jp/product/data/hw02e/index.html )(japanese only) I want to use this by usb connection as my pc is desktop and no wifi. I know this one ...
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494 views

How to host a website using Ubuntu 13.04 on my local machine

How do I do a complete BIND9 DNS Server Configuration with a hostname? Thank You so much for this wonderful answer. Although the talk here had been more on the lines of setting up a home based server ...
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120 views

Add right click sharing to Ubuntu Server 13.10 running Gnome-shell 3.8?

New to Ubuntu but some limited experience with other distros. I was trying out Ubuntu Desktop 12.04 LTS and I was able to right click a folder and share it on my home network. I wasn't crazy about ...
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80 views

12.04 LTS not able connect to internet when installed, but could connect using LiveCD before installation

I met a strange problem. When I use LiveCD to install ubuntu 12.04 LTS, I was able to connect to Internet through wired connection, choosing "Try Ubuntu". But when I installed it, it could not ...
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190 views

ubuntu server/samba file sharing disconnection during use

I apologise in advance if i include needless information; Firstly my network is setup with ubuntu server 12.04 LTS -> netgear modem router -> ethernet cable -> belkin router as wireless access point ...
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336 views

Hostapd serves all webpages to Windows 7 client, not so XP or Android

I have installed hostapd and dnsmasq in a laptop running Linux Mint 15, as a wireless relay: Incoming from remote wifi router is through wlan0, pcmcia wifi card serving client machines is wlan1. This ...
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287 views

lshw and lspci cannot find ethernet device

I have an ASUS H87M-PLUS motherboard. This board comes (according to manual) with a Realtek 8111G ethernet device. In the BIOS, the ethernet device is enabled. Yet, linux does not find a single ...
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79 views

Why does “service networking stop” cause the screen to become blank?

I installed Ubuntu 13.10 and applied all the upgrades. When I run the following command: sudo service networking stop The screen turns blank. This happens both on physical hardware and on ...
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168 views

Unable to connect wifi and ethernet

I have installed Ubuntu on my Dell Latitude e6400 laptop. However, I am unable to connect either with Ethernet or wifi. There are no drivers detected under additional drivers. I enabled networking and ...
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35 views

Autentication throught digest proxy

and sometimes I need to download files (and do other things) throught the command line, I have always declared the enviroment variable http_proxy (https_proxy or ftp_proxy too) in that way: export ...
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43 views

Randomly losing connection but still in LAN

At work I am using ubuntu 12.04 on my laptop. Throughout the day I randomly lose connection to the internet, but I am still in the WLAN. Like, when I try to connect to google it will timeout and not ...
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439 views

Problem connecting to wifi (without network-manager)

Hi the question is simple. How can i use one wifi adapter to recieve info and also host it. (AKA A WIFI HOTSPOT WHILE USING WIFI) the masquarade algorithm allows for this in my case. And other ...
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117 views

How to forward port to shared wired connection?

I connect to my wireless network through NetworkManager. In addition I have another computer connected to the first one through ethernet. I'm using NetworkManager to share the wireless connection of ...
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125 views

found someone lurking in my LAN, not sure what to do next

I have DD WRT router with internal numbers all falling within 192.168.1.0/24. I was looking on my firewall records this morning and found someone at 10.10.109.100 got blocked from accessing port 5353 ...
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262 views

What is hogging my connection?

At times it seems like dozens, if not hundreds of root-owned HTTP connections spring up. This is not much of a problem on LAN or WLAN as each of them seems to transfer very little, but if I use GPRS ...
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2k views

Is there a program like NetStumbler for Ubuntu (to display the channels of local wifi networks)?

NetStumbler is a program that show the local wifi networks and the channel they use. This is useful if one needs to choose a somewhat free channel for one's wifi connection. But this is in Windows. ...