Managing and using network connectivity on a Ubuntu system

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Hostname keeps being reverted

I'm struggling with a strange problem on a Ubuntu 14.04.1 LTS VM running on Azure. My hostname keeps getting reverted to something related to my Azure Deployment. In short: hostname output != ...
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4 views

Setting up a Tracker with Opentracker

I'm trying to run my tracker for the first time. I'd followed the instructions on (https://erdgeist.org/arts/software/opentracker/) and when I run ./opentracker it seems to be working (no error or ...
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1answer
21 views

Sharing folders in NTFS partitions in a network with SMB

I have a computer on my office with Ubuntu 14.04 and a laptop with the same configuration. I would like to share a folder I have in the office computer inside the network. I went to this folder and ...
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1answer
23 views

Configuring two internet connections

First, I'm know there's lots of topics about this kind of problem but I can't found a solution to my specific problem. In my setup I have a Linux server with three interfaces: ethLAN for LAN with IP ...
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ubuntu 12.04 LTS dell inspiron 3137 - wifi issue rectified but wifi data card not working anymore

I installed Ubuntu 12.04 LTS on my new Dell Inspiron 3137. Initially when I inserted the wifi data card (its a Tata Photon Max Wifi Data card), it connected as wired connection and I could access the ...
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Need help adding a remote storage ubuntu 13.10

Im trying to root my droid bionic and im having trouble creating a remote storage. Every time i tap connect i get back a window saying "Network Error. There is a problem in your network connection ...
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8 views

Server losing pppoe connection?

Hello, From a couple of days ago, I am experiencing strange behavior with by Ubuntu Server box. I have it conf as a gateway, with two nics and a pppoe connection to ISP. Everything works fine, until ...
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1answer
8 views

Samba Sharing on Mapped Share

So I'm trying to do something that may not be possible. I am running Ubuntu Server 14.04 with the latest samba. I have a Windows 2008 Storage Server Nas with a shared drive, that I mount in fstab in ...
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VPN fails to connect automatically?

Ubuntu 14.04 Desktop x64 I have a laptop that I need to connect to my VPN server(openvpn). The VPN is marked "allow all users to connect" and all of my wifi connections are marked "automatically ...
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2answers
41 views

Wireless connection is very slow

I installed Kubuntu on my new HP-15 laptop that I just got. Initially the wireless connection was working well, but about two days ago I noticed a decline in the speed of the wireless connection. When ...
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Ubuntu 14.04 - Network problems (wireless and DNS)

I have seen a very similar problem on post: Cannot resolve dns on 12.10 install but with no clear answer and my problem is related to Ubuntu 14.04, another particularity is that this problem started ...
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Monitor network traffic usage per user by terminal?

Can you offer me some tools with which i can monitor traffic usage per user in WiFi/Ethernet network per user? And also will be good if i can see PC's name.
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Default adapter for Internet connection

I would like to ask, how can I solve my situation. We use this laptop with (X)Ubuntu 14.04 at work. At certain situations, we need to be connected to the Internet through 3G USB Modem and at the same ...
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17 views

vino-server: local connection works but not remote connection

I would like to remotely take control over ma grandma's PC, where I installed lubundu 14.04.1. This is not a duplicate of this other question (I want to avoid teamviewer + see below). I configured ...
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1answer
21 views

static ip in NetworkManager but ifconfig does not show the ip (ubuntustudio 14.04)

i am running ubuntustudio 14.04. I have a development setup where my pc has 2 NICs one of which connects to the internet and acquires dhcp ip from the router, while the other (eth1) is used to ...
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12 views

Transmission remote access to web interface

To start off I would like to mention that my SSH access from outside of my lan works, so I know how to portforward and that seems to work. However, I can't seem to get access to the transmission ...
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1answer
25 views

WiFi interface doesn't come up

All of sudden, my builtin Wifi interface on the laptop (HP Pavilion dv7, running Ubuntu 12.04, kernel 3.2.0-64-generic) won't come up. # ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr ...
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How to tunnel all traffic through openconnect

I need to connect through cisco VPN: anyconnect. I found few articles (example) describing how to do that using openconnect and network-manager-openconnect. I installed both, configured the VPN ...
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1answer
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How to connect my Wireless Epson WF-2540 to my laptop that is running Ubuntu 14.04 LTS OS

I downloaded Ubuntu 14.04 LTS OS on my laptop a couple of months ago. I just bought a Wireless Epson WF-2540 all in one (printer, scanner, fax, and copier) a week ago. I have the printer hooked up to ...
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WPA2 Enterprise not an option for WiFi security settings in Network Manager

I'm trying to connect to a WiFi network at my university, and WPA2 enterprise is not an option in my WiFi settings. Any ideas of what package to install for this option? I'm using Ubuntu 14.04, I ...
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2answers
21 views

Configure LXC with additional IP ubuntu 14.04

I'm still looking for answer on my question. I have a dedicated server with ubuntu server 14.04, and 2 public ip. I want to add 1 public ip per 1 lxc. I think i've tried everything and nothing helped ...
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23 views

Can't access second NIC

I have 2 NICs with the primary em1 the other is p3p1. It appears from ifconfig dmesg that both are up and working but I can't access p3p1 from my Java test application. No joy with ping either. ...
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2answers
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openstack: vms exchanging multicast on eth1 fail when one suffers IGMP timeout

I have two identical trusty VMs configured with dhcp for eth1. I installed mgen and configured the mgen scripts to have the two exchange 1 multicast message per second for 360 seconds. One VM stops ...
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How to manage network in packet and out packet?

Looking for solution for Ubuntu system, I had a Computer with 2 different internet connection and 2 IP address. One is static Ip address where second is dyanamic Ip address. Want to receive request ...
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1answer
21 views

Can I restore a backup on a different computer than it was made?

I am using the default backup software for Ubuntu 14.04(deja dup). It backs up weekly to a network location. I'm about to put a new hard drive in my laptop, and I would rather just install ubuntu and ...
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23 views

Multiple public IP addresses can be pinged on the VPS but not from outside

This is my /etc/network/interfaces: auto eth0 allow-hotplug eth0 iface eth0 inet static address xx.xxx.252.26 netmask 255.255.252.0 gateway 83.136.252.1 up ip addr add ...
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1answer
21 views

How to route inbound traffic on one interface to another interface in the same machine?

I have searched the forums, but can't find a solution that addresses my use-case exactly. I need to do this on a remote machine and so don't have a lot of latitude to get this wrong (and possibly lock ...
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1answer
18 views

wired network drops after few minutes / seconds

Recently I installed ubuntu 14.04 on my new laptop, lenovo L440. will doing the installation I used wifi. With a wifi everything works perfectly, the problem is when i plugged a lan cable. The OS ...
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Wired && Wireless not working, Fresh Install

I have just installed Ubuntu 14.04 onto my desktop. It has been unable to establish a connection to the network, it wont even connect. If I give it a manual IP address, then it says that it has ...
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25 views

Unable to use Internet (hosts unknown) after upgrade from 12.04 to 14.04 - DNS Resolv.conf problem

I upgraded my PC two days ago from 12.04 (desktop) to 14.04 (desktop). Since then, I am unable to surf on the internet. More exactly, I have the connection (wired) but not host resolving. I have ...
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1answer
75 views

How long is an ARP entry cached for?

Where can I find out how long ARP table entries are cached? I'm running 13.10. Can I get this on the command line?
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Wifi and ethernet networking stopped working in ubuntu 14.04

I have a System76 Kudu Professional version kudp1, it came with ubuntu 13.10 but I upgraded it to 14.04. After the last upgrade I did it stopped detecting ethernet and wifi networks. nm-tool output: ...
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1answer
13 views

Changing Order of Interfaces

Hoping someone can help me, what I'm wanting to do is change the order of my interfaces on Ubuntu 12.04LTS. We're running our Ubuntu server on a VMWare box with three virtual interfaces. I've read ...
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2answers
33 views

openstack: conifgure vm with static ip on eth1

I'm trying to create two trusty VMs with static IPs for eth1, but pings between the static addresses fail. Via havana dashboard, I created a network with a 10.16.1/24 subnet, disabled gateway, ...
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1answer
28 views

Ubuntu 14.04 Disable automatic network connection until after login

So I recently connected to my university's network for the first time using Ubuntu. After configuring it to correctly work with PEAP, it will now prompt me to login using my credentials on the login ...
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can't connect to the internet wlan and lan not working

I have installed a fresh copy of Ubuntu on Toshiba C655D-s5300 and couldn't get connected to internet. I have tried to follow the same direction with the previously asked questions of installing a ...
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0answers
16 views

Connect to wireless internet through terminal without external programs to set up a server [on hold]

Ok. Here's the deal. I have a computer that does display desktop, only terminal. So through terminal, I need to connect to the internet (Long story). I would like a single command if possible like: ...
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13 views

No Network device available on Ubuntu 14.04

All of a sudden after an update the Wireless icon shows no device detected, I was using WiFi at the time. So far have not been able to connect to any network. My network device info is: Product: ...
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6 views

Ubuntu 14.04 KVM guest issue with static IP address

I Have installed a KVM server and host in Ubuntu both with release 14.04. I did configured the server according to the wiki and it is working as expected. The issue I am having is that after ...
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31 views

my Dell wireless does not detect wifi in ubuntu 14.04 [on hold]

I am using Ubuntu 14.04 LTS and my laptop model is Dell inspiron 15(3521).it wifi works perfectly fine on windows and ubuntu easily detects and connects to ethernet.But it does not even show the ...
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13 views

How to enable or start network (wireless) services in ubuntu 12.04

I know there are loads fo questions similar to my question, but unfortunately none of there answer helped me anyway. I am a 100% newbie to ubuntu(linux) and am from windows enviroment. I liked ubuntu ...
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1answer
40 views

Wifi not working in ubuntu 14.04 all of a sudden

My wifi is not detecting any wifi connections although they are present. As soon as I start my system Network Disconnected notification shows up. But it happens to work sometime and it is quiet ...
0
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1answer
18 views

Wi-Fi connection in 13.10 [on hold]

I just installed Ubuntu on my Dell Inspiron and I cant get the wi-fi to connect. The app store said it's there but can't get to it. Is there something I'm missing?
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24 views

Realtek RTL8723be Wifi and Bluetooth 14.04

I just installed the OS on my laptop and at first wifi didn't work. After connecting to ethernet and updating everything, the wifi is working. But it disconnects here and there and requires me to ...
0
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1answer
32 views

14.04 Desktop: Static IP is acquired, ping works, DNS does not

My question is very similar to this one: Can ping but no DNS I have setup a static IP on my previous Ubuntu versions - 9.04 and 12.04 - without issue. I have used an identical means this time as ...
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1answer
50 views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

I've read through a large number of posts about iptables issues when using Linux as a router, but none could help me with the following: I am setting up a number of student workstations in our ...
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Installing Samsung network printer on Ubuntu 14.04

I am trying to install Samsung C410W printer on Ubuntu 14.04, however after 2 days of struggling any success. I tried to install it through "Add printer", through adding printer in CUPS and I tried ...
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Ubuntu crashes my network [on hold]

When I launch my new install of 14.04.1 the desktop freezes and within a few moments my entire home network locks up. Help? I have installed 14.04.1 Server on a AMD 64bit machine. Then installed ...
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1answer
31 views

Where does `resolvconf` gets the IPs of DNS servers from?

On a server machine, I have the /etc/network/interfaces file similar to: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet ...
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2answers
63 views

What do LISTEN and ports mean in netstat? [on hold]

I have been monitoring my system lately and I have found some strange things are running on my system. Can anyone please explain what they are and why same program use several processes? Output of ...