Managing and using network connectivity on a Ubuntu system

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vpnc - How can I determine my group name and password?

I have downloaded network-manager-vpnc, and I want to know how I can determine what my VPN's group name and password is. I have a Windows machine that I can successfully VPN to - can I figure out the ...
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1answer
58 views

Ubuntu 15.10 5G WIFI issues

I currently have a dual-booted computer running Windows and Ubuntu. I also have the option of connecting to a 2.4Ghz and 5G network in both the Windows and Ubuntu menus. However, while 5G works in ...
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1answer
41 views

Cannot ping to my router

This is my first time here and I am having trouble to ping to my router from Ubuntu 14.04. I have usb N300 WiFi USB Adapter. This is the result of route -n: Destination Gateway Genmask ...
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No wireless Ubuntu 14.04 and unclaimed network controller

So I've just installed Ubuntu 14.04LTS completely overwriting what was previously Windows 10 (wireless was working fine on pre-installed windows). Now only Ethernet is working fine but I am not able ...
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26 views

Apache2 runs but is not working on Ubuntu VM!

I set up apache2 on an Ubuntu 14.04.03 VM. This is a VM hosted on a university server and I can only SSH to it (from my office/home computer). Apache seems to be running OK when I run this command: ...
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Whole network part of my ubuntu system doesn't work

I had some troubles with wifi-connection - it dropped stadly every several hours; I had to reconnect every time. Trying to solve this problem I found this solution ...
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26 views

Problems adding an interface to resolv.conf

I'm having problems with my network, and it it just with Ubuntu. If I do: ping www.google.com ping: unkown host www.google.com But: ping 64.233.198.147 Gives me ping. Info: Ubuntu 15.10 ...
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1answer
23 views

Connect two subnets so that they can see each other

I've got 3 machines (virtual) : A client, a server, and a destination. (All running ubuntu 14.04). The client and server are interconnected via a subnet, and have the ips 10.10.100.4 and 10.10.100.2 ...
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External HDD connected to router. How to use it as Ubuntu home directory?

I have a computer without USB, using Ubuntu (latest version). I have a router with a place to insert usb stick or external usb harddisk (to use it on the network). The computer is connected with this ...
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1answer
20 views

Ubuntu 14- no internet connections at all

I'm booting Ubuntu in WMware Workstation while using Win7, my laptop has internet connection in windows, but when I go to Ubuntu, it does not reckognize any connections. I searched the answers online, ...
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187 views

Nethogs → creating socket failed while establishing local IP - are you root?

Following update of my Kubuntu, I'm not able to monitor my network consumption using nethogs: sudo nethogs enp1s0 creating socket failed while establishing local IP - are you root? Kernel $ uname ...
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Access network shared printer from wine command prompt

I have connect a shared printer in my ubuntu desktop and I have installed wine 1.6. I ran a vb application in wine and I want to print the output txt file of the vb application. Printer is shared in ...
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internet works fine for few minutes but stop after a minute

I just installed Kubuntu on y HP pavillon 15-p088ca and everything was all right since my Internet stopped responding. I tried to ping localhost : everyting was fine, try ping google.com : nothing... ...
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58 views

Ethernet and Wireless stop working after upgrading fresh install (14.04) [duplicate]

I put a fresh install of 14.04 on an Acer ES1-331. I was able to get a wired connection, but not WiFi, so I updated and upgraded using a terminal. After restarting, not only was WiFi still not ...
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How do I match technology to wake on lan from other services and applications

This is not a duplicate question, though it is closely related and I need more clarification. Just to be clear this is on 14.04, and verified with the reseller and manufacturer that all new devices ...
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20 views

Change maximum number of Virtual interfaces in Kernel

I am running Ubuntu server 14.04.3. I have smcroute installed - Version 0.95, Build 130523. When I attempt to start the daemon I get the error message: ERRO: addVIF, out of VIF space;, this happens ...
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1answer
104 views

Can't connect wifi with Intel AC 7265 on Ubuntu 15.10, Asus ZenBook UX305

I've read some postings on similar topics but none of them resolved my issue. I bought my notebook 2 weeks ago. After first wifi problems it worked well for some days. But now, I get almost any ...
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1answer
28 views

why command telnet responds strange? [closed]

i pass network course university 4 years before,i have a question that is possible amateur ,please help me.. i have ubuntu on vmware.i use this command: telnet google.com 80 it responds: ...
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41 views

Unable to connect to proxy server

I am on my institute network. We have internet access both directly and via a proxy server. The proxy server provides significantly more speed than the direct access. The problem is that ubuntu ...
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41 views

Wifi doesn't work on Ubuntu 14.04 LTS [duplicate]

I have exactly the same problem of this question, however solution accepted as answer doesn't work. I also did all the commands in comment of that question but still no success. The strange fact is ...
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Ubuntu 14.04 does not see other Ubuntu 14.04 Samba share… but my Android phone does.

I have two Ubuntu 14.04 laptops at home. They are both running Samba. My Android phone is as well. I have one directory being shared out of each of my laptops. But neither laptop sees the other's ...
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11 views

Enter usb ethernet adapter not working

I have an Enter usb ethernet adapter. When I plug it into my system , which is running ubuntu 14.04, it is detected, but no ethernet connections are showing up. Result of various commands are as ...
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Reaver v1.4 WiFi Protected Setup Attack Tool

In my pc when I command as follow reaver -i wlan0 -b 24:C9:A1:0C:71:98 -vv It shows as follow [-] Failed to initialize interface 'wlan0' [-] Failed to recover WPA key [+] Nothing done, ...
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How to get the physical PCI Passthrough device ID from Ubuntu VM

The Ubuntu VM is connected with two PCI device. And lspci is providing me vendor id, sub vendor id, device id etc. But these values are same for both PCI driver. I want to differentiate them based ...
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How to get my usb netgear wifi adapter to work?

Despite looking through many forums with similar problems, I can't get my NETGEAR N600 Wireless Dual Band USB Adapter working. It says the driver is installed. (lsusb recognizes the device) $ lsusb ...
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Help with home server

The school I use to go to had a server with an account for every student. The school had hundreds of Windows XP computers running a Novell client to access the server. Each student had a user name and ...
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Ubuntu 15.10 with TL-WN822N v3 problem

just moved from Windows to Ubuntu and having weird problem with my TL-WN822N v3 USB adapter. after couple minutes he just disconnects from the internet, but the interface still showing that im ...
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20 views

PPTPD / VPN without forwarding all traffic

I have this setup: Ubuntu 14.04 on VirtualBox with 'pptpd' ( remoteip 192.168.200.0-16 ) 2x Windows 10 client computers I have followed this guide with success ...
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Thunar fails to reconnect broken ssh connection?

When I open an sftp connection to a server with Thunar, and this connection is broken for some reason (either the server kills it because of inactivity, or the connection is lost), then when I try to ...
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1answer
17 views

My wireless connection went down suddenly, and I cannot get it back

The other night the wireless connection suddenly quit working on my laptop running Ubuntu. I looked at the network settings, and nothing looked different or wrong. I rebooted the machine a couple ...
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2answers
123 views

WiFi failure in Ubuntu 14.04

My WiFi connection's been working fine for months and suddenly conked out. It's not the WiFi itself, as my phone and other machines can use it fine. It's my computer that can't connect to it (nor to ...
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1answer
26 views

How can I install Ubuntu on a new device that I made myself?

For example, I have a device that I made myself with chipsets and a new design. You can think it is like a tablet, but it is not, because I am doing other things with this device. I need to install ...
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WIFI not connecting asking password all time

I am unable to connect to my home WiFi network. I click connect to my WiFi it asks for password ,I have put correct password in the password dialog...after 5 to 6 second it again asks for password and ...
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Global Sensor Networks

Can someone tell me the detailed steps to install Global Sensor Networks(GSN) in Ubuntu 14.04 ? What all are the pre-requirements for this ? And please tell me how to install all of them and ...
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5answers
138 views

How do I terminate a 'Ping' without closing the command terminal window?

When I use the 'Ping' command in a terminal window, how do I terminate the ping? I have pinged my router (192.168.1.1) and the results have displayed in the terminal window, but the program keeps ...
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Forwarding UDP data between two local interfaces

I have server which has 4 eth ports: - eth0: 192.168.226.55 (Internet connection, default one default route) - eth1: 10.8.8.1 (local network) - eth2: 192.168.225.129 (Internet connection) - eth3: ...
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How to put network back on panel

I use Xubuntu 14.04 but I removed accidently that thing on panel with two arrows where I edit my internet connections. How do I put it back there?
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44 views

Wired connection not working after recovery

I am using Ubuntu 15.10 and encountered some issues with wired connection. after using grub, using Ubuntu recovery option with networking enabled it messed up my wired connection settings. using: ...
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1answer
36 views

ethernet not working in Unbuntu 14.04 after I installed it along with windows 10

lspci -knn | grep -EA2 'Eth|Net' produces the following output in my system: 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I219-V [8086:15b8] (rev 31) Subsystem: ...
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1answer
28 views

I port scanned 80 and 443 and found them closed. Why can I still browse the internet?

I have been trying to figure out why I cannot SSH to my raspberry pi from my laptop outside the pi's network. I port scanned and found only port 22 open. I got stuck with that and still do not know ...
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1answer
54 views

Nothing displays for wifi connections

I just installed ubuntu to my external HDD. This is the first time ive ever used ubuntu. Up until now ive only used windows. My problem is that i can not get my wifi to work on ubuntu. It works on ...
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14 views

Windows 8.1 Network share fstab

Pulling my hair out on this one. I have been through tons of blogs but been unable to get things working. This is my first Linux system. Using Ubuntu 14.04. The Ubuntu system is set-up on my office ...
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1answer
29 views

Port forwarding Openstack landscape

I have install MAAS+OpenStack on My servers. At the end of install OpenStack Autopilot, I got adress to interface of Openstack Landscape: http://10.1.1.102/account/standalone/openstack How can I do ...
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2answers
91 views

Network unclaimed shown for network controller

I am facing difficulties connecting to wifi on my Lenovo Flex 3 1480 laptop on Ubuntu 14.04. It works fine on Windows. I am attaching wireless-info.txt that I got from : ...
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1answer
49 views

External ssh not working (port already forwarded)

I'm setting up my first home server from an old pc. I've installed Ubuntu Server 15.10. I've been trying and doing some research but I couldn't make the SSH work from an external computer, it always ...
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How can I use my laptop as a Bluetooth input device?

I just got a USB bluetooth dongle, and I'd like to use it to Connect my laptop to my Android tablet as a slave device. and Route input from my USB Xbox 360 controller to the bluetooth dongle. I ...
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34 views

DHCP IP address changes automatically

My Dell precision M4800, running Ubuntu 14.04 LTS, periodically changes its IP address. It looks like the DHCP lease expires and for some reason it gets a new IP adress instead of renewing the old ...
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D-link DWA-121 losing connection

My wireless connects and I can access the internet for a while but then I lose connectivity. The wireless icon still shows that I'm connected but I can't connect to anything. If I disconnect from the ...
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1answer
52 views

Mount a samba network drive from terminal without hardcoding a password

I know that the default command would look like this: sudo mount -t cifs -o username=YOUR_USERNAME,password=YOUR_PASSWORD,uid=YOUR_UBUNTU_USERNAME //networkNameOfRemoteComputer/path/to/my/folder ...
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How can I know how many devices there are in a single LAN and how I do know the IP of every each device?

Today, I learned in my classroom how to discover the IP of our device. That's easy, I just have to put ifconfig in the terminal, and this is what I get: eth0 Link encap:Ethernet HWaddr ...