Managing and using network connectivity on a Ubuntu system

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can access my webserver only using local network

I have two web servers on an Ubuntu 14. Router forwarding to nginx on port 80 Router forwarding to rdeck on port 4441 - working well The port 4440 is working well from anywhere. But the port 80 ...
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5 views

problem with network manager (wireless related)

I am having problem with my wireless network for some period of time the network work fines but after some time it stop working ...trying to disconnect shows error device disconnect failed (4)did ...
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5 views

Intranet LAN networking for office PCS

I am a Newbie in Ubuntu. I have 8 new PCs installed with ubuntu 14.04, I am unable to do networking in them. I want to share files in all pcs ubuntu to ubuntu which includes sharing a drive and folder ...
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10 views

Local Network Places access in Dreamweaver 8

I just downloaded Ubuntu operating system for my work. I'm using Dreamweaver 8 for development. But i'm unable to access my local network places while working on Dreamweaver 8. Please guide me, how ...
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13 views

How to install spark in Ubuntu 12.04?

It shows error like file size is too large, I am using through my institution Internet connection its limited access. so I need help to how could install the spark??? My system is Ubuntu 12.04 ...
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9 views

Forward ports from local network ips to external network

I have server running Ubuntu Server 12.04. This server have two network carts. The first one is the industrial network. This network is visible only to the industrial devices connected to it and to ...
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9 views

Graphics problem while installing ubuntu

Respected Sir/Mam while i am going to install ubuntu my laptop giving a error after installation that my system is running in low graphics.i have a laptop having amd redeon graphics ...
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20 views

Install reliance Driver software in ubuntu 14.04

I'm Using Huawei ec 150 dongle. I need to install driver software It is quiet a big task for begineers in linux. So i took this matter over here. EDIT Output of lsusb Bus 001 Device 001: ID ...
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19 views

How to configure a network printer in Ubuntu 14.04

I have 2 printers on a home WiFi network that are accessed by 2 desktops running Windows. I have a new laptop on which I am learning/trying Ubuntu 14.04. How do I configure things to access these ...
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Wireless in virtualbox not working

I have Ubuntu 14.04 installed. I have enabled the USB nic in settings in Virtualbox manager but when I use lshw -C network it does not show the wireless nic Using lsusb shows this output: Bus 001 ...
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I removed network applet can't restore it after two appeared

I removed network applet can't restore it after two appeared running Ubuntu Studio 64 bit system.
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Internet not working (local network works) after upgrade to 14.04

I have an internet connection that works through a proxy that requires username & password. After online upgrade to 14.04 from 12.04, I am unable to connect to internet, pinging to popular sites ...
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I am not able to connect to wifi network

I had tried every code every idea every thing but I failed wireless driver Broadcom BCM43412, but when I checked pci-id it show not supported. my pci id is 14e4:4365 and chip id is BCM43142. I tried ...
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33 views

Wired connection cannot be established - no eth0

i am on ubuntu trusty 14.04, and i recently lost my wired ethernet connection for uknown reason. I get eth0 no such device and other related errors. I tried many solutions from other posts, and i ...
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6 views

Internet drops out when using shared hub or streaming media

Depending on the network I'm connected to my (wireless) internet will drop out every 30 seconds to every few hours. How often I drop out (seemingly) depends on the network, and the amount of traffic ...
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1answer
17 views

top like utility for network activity/ports by process

I'm looking for a utility to continuously monitor network traffic by process. Something like top but instead of focusing on CPU/memory, I would like to see TCP and UDP ports and throughput for the ...
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2answers
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MacMini (running Ubuntu 14.04) loses wlan connection when uploading larger files (several 100 mb) via ownCloud

I installed Ubuntu 14.04 on an old MacMini with the intention of running it as a homeserver. Additionally I installed ownCloud and tried to sync some files both from a laptop running elementaryOS and ...
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1answer
24 views

Static IP breaks Network connection

I am somewhat new to Linux. I am setting up a Web server and installed Ubuntu server 14.04 on an vSphere ESXi 5.5 host. I am connecting perfectly fine to the internet when using DHCP but when I apply ...
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How to get Wifi working on Ubuntu 14.04 (Macbook Pro Retina 15 inch - 2014)

I just downloaded Ubuntu 14.04 on my Macbook Pro Retina 15 inch 2014 version using usb. My problem is I can't get the Wifi working. No wifi connections would display on the wifi menu. I've tried ...
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36 views

Unstable wireless Ubuntu 14.04

The internet connection is relatively stable however it seems to drop every few minutes for 10-20 seconds. Panda Ultra Wireless N Unstable Connection ...
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12 views

Having problem with ethernet port Ubuntu 14.04

My Ethernet light keeps on blinking even after I shut down my laptop. I have dual booted Ubuntu 14.04 with windows 8.1. However, if I show down from windows the light goes off. But in the case of ...
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14 views

Desktop Shorcut to dial a Mobile 3g Connection

Like in Windows, is there any way to create a desktop shortcut to dial a mobile 3g connection (I'm using Mate DE)? I use default Network Manager.
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1answer
25 views

IP/PORT forward requests to another server

I have the following listening PORT:IP set up on my UBuntu server. 12.345.67.890:3636 It receives requests perfectly, however, I would now like to forward any requests to that IP:PORT to another ...
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Wifi not working…still

Upgraded to 14.04 from 12.04 (which was working fine). Now wifi will not connect most of the time. Sometimes when rebooted it connects but most of the time it will not. I have not changed anything ...
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1answer
19 views

Does driver exist for Trendnet AC1200 Dual Band Wireless adapter for Ubuntu 14.04 64bit?

I'm new to Ubuntu and was wondering if Ubuntu 14.04 64-bit drivers exist for the Trendnet AC1200 Dual Band Wireless USB 3.0 adapter. I tried searching the forums for my specific adapter, but no luck. ...
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1answer
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How do I connect 12.04 to 14.04 over a LAN?

I have 3 computers; 2 running 14.04 and one running 12.04. All work fine and have complete Internet access. I would like to be able to connect them via the network in such manner that my wife's Win7 ...
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Ethernet connection intermittently does not work in LTS 14.04

I have been having an intermittent issue with my ethernet connection my laptop. I am using Ubuntu 14.04 LTS 64 bit. I am running a Dell 15 7357. Below is the output from lspci -v for my ethernet ...
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9 views

Downsides of enabling access using WINS/Netbios from Windows

I'm setting up a Ubuntu server v14.04 and want to be able to access it using its hostname instead of IP from Windows. The solutions I have found are these: sudo gedit /etc/nsswitch.conf hosts: ...
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15 views

Excessive Power Consumption by ethernet socket

Recently I have been having problems with power consumption in Ubuntu, I am not exactly sure when this started but roughly about two weeks ago. Idle my laptop used about 9-10W of power, or at least it ...
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24 views

Wireless Drivers for Broadcom BCM 4321 (14e4:4329) will not stay connected to a wireless network [duplicate]

So, I'm not necessary new to Linux, I just never took the time to learn it, so please, bare with me. I just swapped out one of my wireless cards from one computer to another. This wireless card in ...
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Problem with Dell PowerEdge 1950 network interface

The 1950 has two Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet interfaces. When I have eth0 running and eth1 disabled, dhcp client kicks in, and the server is assigned an address and life ...
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Connecting to DSL on Asus K53SV

I have recently switched to Linux Mint 17. I've been unable to connect it to internet using DSL connection. The connection was working fine on another system, I had unplugged it and tried to access ...
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Ubuntu doesn't recognize my wireless USB adaptor

I need a little help as i am new to UBUNTU. My ubuntu is not recognizing my wireless USB adptor. I have already installed the drivers through WINDOWS WIRELESS DRIVERS. But it shows that no hardware is ...
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1answer
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Failover/ gateway issue. Help please

hope someone can help, this would be excellent. I’ve ubuntu DHCP server (10.04), which works great (many thanks to everyone who helped me in this excellent forum). This server has 2 cards, eth0 for ...
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7 views

Only resolve DNS on VPN Server

I installed pptpd but my connection is too slow and i need use Google DNSes (8.8.8.8,8.8.4.4) on my Android without root for mobile network (not Wi-Fi). How can i configure my ubuntu server for just ...
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13 views

List usernames/machine name for display-less machine

I have a display-less machine (faulty VGA) I am trying to SSH to over my local network by doing something like ssh username@machinename.local as described in this solution. I know the password for ...
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12 views

No network traffic is being measured

I just completely cleaned my computer and installed Ubuntu 14.04. Before, I used ifstat under Ubuntu 12.04 to measure my network traffic in the command line. However, now that I installed ifstat under ...
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Drop connection if upload speed exceed specific value

I have a media server installed to my Ubuntu machine. I want to limit(really limit) incoming data to my server per connection for uploads and if specific bandwidth exceed, their connection will be ...
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25 views

Network Manager icon disapear 14.04

After installing hostapd in ubuntu 14.04. Network Manager icon disapears. Even after removing hostapd, still Network Manager icon is not appearing. During boot up, "Waiting up to 60 seconds to ...
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28 views

Private Internet Access (VPN) on Ubuntu 12.04

Has anyone used Exede Internet Service (ISP) with Private Internet Access (VPN) or any other VPN. I'm in rural OK area thinking of using Exede but they want 2 yr contract. You mention VPN and they ...
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23 views

Why does my wireless card appears in iwconfig as a eth interface?

I wanted to identify my wireless network interface name to check my wireless network card is installed properly or not . But i am getting something different. I'm used to seeing this: $ ...
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53 views

No internet after upgrading from 12.04 to 14.04.1

I have a Dell Latitude with Ethernet and Wireless (broadcomm) adapters. They were both working fine on 12.04. I upgraded to 14.04.1 via the Software Manager. Since then I am unable to connect to the ...
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1answer
25 views

how can I clear wrong typed wireless information?

I try to connect to a WPA2 wireless network detected by my wireless adapter and the default application for wireless connection under ubuntu 12.04. I typed some wrong information such as i should have ...
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How to EASY share files over a private network, between different OS's

I'm trying to finding a simple method for sharing my files on my home network. Instead of the usual network protocols, which often give me some trouble, I was thinking to something like a local ...
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1answer
22 views

Live host on network is masked in some way or its changing it's ip?

OVERVIEW: My professor runs some kind of live Ubuntu OS image on top of the classroom computer he uses to lecture then portals into his linux box located in his office. He has informed me his ...
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18 views

Intel Corporation Ethernet Connection does not start properly

I'm experiencing some problems when trying to connect my PC to the router through a switch. When the PC is directly connected to the router, everything works fine, Ubuntu (14.04) starts normally, and ...
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10 views

Wireless Lan RALINK RT5370 not working

I am new to Linux. Would appreciate if you can help me with the below problem. I have a wireless lan - RALINK. When I run the lsusb command, following is the output. Bus 001 Device 004: ID 148f:5370 ...
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Bluetooth turns on instead of WIFI

I have Dell inspiron laptop. And I recently installed 14.04. And whenever I press the hardware button provided for WiFi, bluetooth turns on. And I used command sudo service wireless start. this was ...
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15 views

Wired Connection is Disconnected on 12.10 ubuntu and wi-fi is working fine [on hold]

I am trying to connect my ULK Board through ehternet but it is not connecting. did some changes in NetworkManager.conf 1) managed=true( previously it was false) then restart Network manager but it ...
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14 views

Ubuntu 14.04 No Network Devices Detected

Quite new to Ubuntu and just upgraded from 12.04 to 14.04, the internet initially worked roughly 10 minutes and just stopped didn't enter anything in the terminal just was using web browser and lost ...