Managing and using network connectivity on a Ubuntu system

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How to setup and save vlans on ethernet

I am trying to setup vlans on my eth0 network card. The following are the steps that I've taken: Install vlan with sudo apt-get install vlan Edit /etc/network/interfaces in vi by adding: auto ...
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33 views

Can not access the shared folder in Ubuntu 14.4 / Samba

I seems to be faced off with this issue for quite sometime now. I was able to access the shared folder without any issues when I use Ubuntu 12 LTS but after the upgrade to 14.4LTS only some PC's can ...
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12 views

Samsung printer on server - install and make it accessible

I seem to can not find any information on how to install a Samsung's SCX-3200 Multifunction device on Ubuntu server so it can be accessible from windows and linux computers on the network, so we do ...
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1answer
56 views

Why 169.254.0.0 appears by default in the routing table?

I defined a subnet on eth0 in /etc/network/interfaces with: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback auto eth0 iface eth0 inet static ...
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1answer
28 views

How to diagnose /etc/hosts file having no effect

Right now, on my Ubuntu 14.04 desktop, for testing purposes I've changed the /etc/hosts file to something very simple: 127.0.0.1 localhost 127.0.0.1 something However, this simple configuration ...
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57 views

Wifi connectivity issues in Ubuntu 14.04 [HP pavilion 15 series]

I am very much new to ubuntu and this communtiy and i recently installed Ubuntu 14.04 (alongside windows 10) on my newly purchased laptop(hp pavilion 15-ab032tx). There's some serious issues with the ...
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48 views

Making a wifi adapter RTL8192eu work on Ubuntu

I bought a wifi adapter for my raspberry pi, but I have problems making work on raspberry pi. I tested it on a PC running Ubuntu. It has exactly the same behavior, as follows: When inserted, lsusb ...
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1answer
42 views

Autostart script to notify me on connection issues

My network connection is sometimes not very stable and starts to drop packages or entirely break every now and then, which requires me to restart the network connection or sometimes temporarily unplug ...
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1answer
82 views

lan not working after reboot

I've installed Ubuntu 14.04 on my new notebook and I've got a problem with internet connectivity. When I boot the computer, everything works perfectly fine, but after rebooting using the button in the ...
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2answers
114 views

Transfer files between Ubuntu 15.04 and Windows 7 via Ethernet

I'm trying to get my backup files in a shared folder in my Win7 desktop back to my laptop running Lubuntu 15.04. The two pc's are connected directly via Ethernet, now I need to access the shared ...
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1answer
47 views

Is it possible to ripping a CD via another computer?

I have multiple computer on my local network. Some of it use Windows OS. On one of Windows system, it had one CD drive. I'm also have Ubuntu system on another computer. This's the scheme: ...
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33 views

LTSP Fat Client Swap

First of all, this is my first foray into Linux and it has been a pretty steep but fun learning curve. I run a small K12 education centre in Japan and have set up an Edubuntu server with 4 LTSP fat ...
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1answer
24 views

IPTables/UFW not allowing incoming connection

I have two Ubuntu 14.04 virtual servers. One has IPTables/UFW on and enabled. It also has Vesta Control Panel installed. The other server is running some gaming servers, it does not have iptables ...
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36 views

connect to PPTP VPN server

I have created a PPTP VPN server by following ubuntu's guide . Now i have my problem now is that my android phone could not connect to the pptp which i created.So i search and found this link for ...
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2answers
34 views

How to change priority interfaces

I have 3 network interfaces : lo, new0 and new1. I use the new1 to access the internet. My computer went nuts a few days ago and try to access the internet on lo. (localhost). When i ifconfig lo down ...
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2answers
26 views

Is there a way to access the WiFi connection through the shell?

Is there any way of seeing/manipulating connection represented by the WiFi symbol on the desktop? For example, programmatically connecting and disconnecting to a router.
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18 views

Change IP Tables via a website on a different server

Just wondering if there is a way to change IP Tables via another server. My plan is to make a service that only members of a forum can access via inputting their ip into a field and then some how ...
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1answer
39 views

How can I change ports on an Docker container?

I created a docker container with also the command part -p :8080 so a random port from the host will route the requests to the port 8080 on the docker container --> 0.0.0.0:49153->8080/tcp I had ...
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1answer
61 views

Let Raspberry Pi connect to internet through Ubuntu in virtual machine

I have Ubuntu 12.04.5 LTS installed in a virtual machine in OS X. There's a Raspberry Pi connected to the same mac via direct ethernet wire. The mac is connected to the internet via wifi connection. ...
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45 views

Short realtek rtl8723be wifi range when using ubuntu 14.04 laptop

The range of wifi is very limited, less than 10 ft whereas the smart phones connected to the same router can operate at a distance of up 40 ft (apprx). This is a new HP laptop, bought with DOS ...
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1answer
27 views

WNA3100 Wifi usb adapter won't connect

I followed the guide here http://ubuntuforums.org/showthread.php?t=2221251 to install the drivers for my Netgear wifi usb adapter WNA3100. I managed to install the drivers correctly but before and ...
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1answer
31 views

Samba public share does not show up at “Network” in Windows, but is accessible

I have set up a Samba public share as follows: [global] workgroup = MYWORKGROUP netbios name = SHUTTLESERVER security = user map to guest = bad user dns proxy = no guest ...
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1answer
29 views

My Ubuntu cannot access to the Internet

My Ubuntu cannot access to the Internet whereas my virtual Windows machine on Virtual box, which is installed in my Ubuntu, can. Network configuration of that virtual machine is of type bridge of ...
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46 views

Step By Step : Making a server accessible worldwide

I am new to Ubuntu Server, and in general with servers, so consider me as a beginner... (But, I know how to use the terminal.) Note: I use a router, not a modem nor a broadband connection. The ...
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2answers
61 views

Ubuntu internet not working with lower Wi-Fi signal levels

Ubuntu 14.04.3 not accessing internet traffic when Wi-Fi signal is at 2 bars of strength or less. It connects to the router/modem combo, but no web pages can be downloaded in any browser (or any ...
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Wifi not connecting in windows 8.1 in the ubuntu 14.04 and windows 8.1 dual boot system

I am using a dual boot system with ubuntu 14.04LTS and windows 8.1 . I install ubuntu after installing windows. Then the bootloader problem occurs.Windows was not recognized in login. Then I install ...
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1answer
63 views

Unusual network activity is seen in Ubuntu's built-in System Monitor (14.04 LTS 64bit Spanish)

I detected some unusual networking activity on my PC. In System Monitor appears strange networking data-transfer, even when i close my web browser (Google Chrome 44.0.2403.130 64-bit) the activity ...
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2answers
52 views

How do I configure network interfaces after installing a basic command-line system?

I have installed a basic command-line system and didn't configure networking at setup time. Namely, I have booted from Lubuntu 14.04 Alternate CD, pressed F4 and selected 'Install a command-line ...
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1answer
44 views

change inet addr:192.168.2.2

wlan0 Link encap:Ethernet HWaddr 28:e3:47:81:6e:06 inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::2ae3:47ff:fe81:6e06/64 Scope:Link ...
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1answer
66 views

Recently installed ubuntu 14.04, and having issues with connecting to a wired connection

I've been trying to fix my problem through other solutions in other questions, but it's not been working. I'm kind of a linux noob, but i am aware that my system is recognizing the connection, but for ...
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1answer
42 views

Port 22 is always open

I configured a new Ubuntu Installation and set up the firewall. All incoming was denied and all outgoing was denied as well(with exception for port 8080, as I am behind a proxy). I then tried an ...
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1answer
38 views

Why did my Wifi stop working all of a sudden?

My wifi has stopped working since yesterday. It only starts working when I disable my connection and enable it again. Then it stops working after a couple of second again. Something is clearly really ...
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1answer
44 views

Using rsync to back up a remote computer through a reverse ssh link

I can rsync to my remote computer, but cannot rsync from my remote computer--it doesn't seem to exchange a file list in that direction, so it tries to transfer all of a huge number of files rather ...
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22 views

please after this my adapter turn off

sudo airmon-ng start wlan1 Found 3 processes that could cause trouble. If airodump-ng, aireplay-ng or airtun-ng stops working after a short period of time, you may want to kill (some of) them! PID ...
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48 views

Networking - Wired network works on Windows 8.1 but not on Ubuntu 15.04

I have dual booted Windows 8.1 and Ubuntu 15.04 on my asus xx130d laptop.The problem i'm facing is I am not able to access internet on Ubuntu though I can access it on windows. I have wired internet ...
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1answer
29 views

is it required to buy a wi fi router to access http://192.168.1.1? [closed]

I know this Question is not technically related to Ubunutu but let me explain my problem. I am planning to but a Wi-Fi modem+router recently. I was learning to access the setting and tried on my ...
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37 views

Randomly losing internet connection over both wi-fi and ethernet cable

I have a fresh XUbuntu 14.04 install connected to internet over TP-LINK WL-WR940N router. Randomly, every 30 minutes - 3 hours I get disconnected from the internet. During this time, my android ...
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22 views

Samba on Ubuntu Server 14.04 LTS is not visible in the local net anymore

I set up Samba on my Ubuntu Server, I could see the server from the two Windows PCs in my home and I could share files between the PCs. When I restarted the system, I could not see the server anymore. ...
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15 views

Internal Lan does not get reported by lspci / dmesg / etc

I have an Asus P8H61-MX USB3 motherboard which is supposed to have a Realtek® 8111F-VB-CG, 1 x Gigabit LAN Controller according to the specs. Unfortunately the internal LAN seems to not get found with ...
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10 views

Server error when i log in

Hello I'm having the next warning when I log in to my server: WARNING:root:Could not determine network interface speed, operation not permitted. Do you know how to solve it?
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42 views

wi fi not showing in newly installed ubuntu 14.04

I just installed ubuntu 14.04, but I found no wifi on it. I run command: lspci | grep "Network" and got the output : 03.00.0Network controller: MEDIATEC Corp. MT7630e 802.11bgn Wireless Network ...
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1answer
24 views

Leoxsys USB Wireless Adapter not detected in lspci

I bought a Leoxsys USB Wireless Adapter for my laptop (Kubuntu 15.04) and installed the required drivers. It can detect other wifi devices but I can't create a hotspot using it. The wireless adapter ...
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43 views

Bluetooth not working on Acer E3-111

I've got Ubuntu 14.04 running as the sole OS on the hard drive, with kernel version 3.13.0-61.100-generic. System Testing tells me it has a Qualcomm Atheros QCA9565/AR9565 Wireless Subsystem on-board. ...
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1answer
53 views

What is the WinE or Ubuntu version of doing this?

Add the following IP addresses to the "hosts" file on "C:\Windows\System32\drivers\etc": (Edit: I don't have the "hosts" file) 216.98.48.18 127.0.0.1 216.98.48.53 127.0.0.1 216.98.48.57 127.0.0.1 ...
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18 views

Ubuntu Server Network Authentication

I have a dual boot system. When I boot into Windows and I open Internet Explorer, I am asked for my user name and password credentials. Once I do that, I am granted access to the internet. When I ...
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1answer
45 views

How have I got a static IP address?

I'm having some difficulty with bridging in KVM, while trying to sort it out I have noticed something strange, My server has always had the IP address 192.168.1.140, this persists when i reboot, ...
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1answer
38 views

How to configure iptables file to allow only specific ipaddress on all port and deny all other ipaddress?

I require a configuration of iptables file which will allow me connection through only specific ip-address say 10.0.0.1 on all port ranging from 0-5555 and deny all other ip-addresses? I have tried ...
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9 views

net ISP balance

i am trying for sometime now to figure how to configure the [enter link description here][1] [1]: http://lstein.github.io/Net-ISP-Balance/ my ISPs are on eth1 and eth2. my LAN is on eth0. i have ...
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31 views

Ubuntu 14.04: Wifi always is “configuring,” never connects

I have a Lenovo 585G laptop with an Atheros wireless card, and a fresh install of Ubuntu 14.04 (installed alongside a Windows OS, if that's relevant). I cannot acquire a connection to my wireless ...
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17 views

Current version of Ubuntu Linux doesn't show wireless internet connections

I installed Ubuntu along side windows 7 ultimate. It installed fine and everything works except for the wireless connectivity. It doesn't even show an option for wireless connections. Could it not ...