Managing and using network connectivity on a Ubuntu system

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How to perform detail packet capture on Ubuntu firewall?

I've routed internet traffic of my other systems on this ubuntu linux system where I have configured packet forwarding. but still I am unable to get internet on other systems. Hence I want to ...
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Remote Desktop server that runs on single desktop

I want to be able to remotely connect to a friend's computer when he needs help and control his desktop. Chrome Remote Desktop is too slow because of the use of Google's servers instead of directly ...
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1answer
9 views

What Type of Network Connection for IP for Nautlus

I am using LTS 14. I am trying to figure out how to Network a device. I don't know what kind of network it is for a location of: 10.10.10.254 with a username/password. Does anyone know what type it ...
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2answers
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How do I configure proxy on Ubuntu 14.04?

I've installed Ubuntu 14.04, and with I've setup broadband connection, windows 7 allow all internet access, but Ubuntu 14.04 some application access via internet, I can't access Firefox browser and ...
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Ubuntu 14.04 - scanimage - invalid argument

It seems my Brother MFC-9120-CN is not detected whenever I want to scan an image. The printer works fine, however. The device is directly connected in my local network. ➜ ~ scanimage -L device ...
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ASUS X550C wifi

There is a lot of similar problems, but this one is a bit different. I have no phy0: Wireless LAN Ubuntu: 14.04.1 sudo rfkill list all 0: asus-wlan: Wireless LAN Soft blocked: no Hard ...
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No wifi after fresh 14.04 install

I've installed a fresh version of 14.04 over my last install. Now I'm unable to connect to any wifi network as there is no wifi network option available under networking.
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24 views

wifi wont connect ubuntu 14.04

I know there are so many questions answered on this topic already. I've been researching for a few days now. but none seem to work or are for different drivers. please help me fix this issue. I ...
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1answer
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Can my network use Ubuntu Openstack?

I have a small network of computers, I am migrating from Arch Linux to Ubuntu's OpenStack Platform for usability reasons. The reason I am asking is because of the following: Installing Ubuntu ...
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Network connection problem in ubuntu 14.10

I have just installed Ubuntu 14.10 but not getting Internet connection. Our Internet connection is based on broadband connection provided by our college as a WiFi mode. I saw this on another forum ...
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1answer
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Wireless Parental Computer Control

I have recently convinced my brother to join the Linux side. He has 4 kids and wants to me to connect his desktop with their systems for monitoring purposes. What would be the best way for him to find ...
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1answer
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Route subnet requests from wlan0 to eth0 on Ubuntu 14.04

My raspberry pi is connected via Ethernet to my Ubuntu 14.04 machine (192.168.1.0/24 on eth0). This machine is connected to the Internet through a Fritz Box WLAN Router (192.168.0.0/24 on wlan0). The ...
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Does Ubuntu with Linux 3.5 having TX RX ring buffers or BQL

My uname -a command outputs: Linux Davinci001 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux So, does NICs with Ubuntu machine is working ...
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Ubuntu File Sharing via Samba: cannot add files to share folder: claims permission denied. Any suggestions?

I am a newbie to Ubuntu. Apologies if this has been asked before: I did try to do some research, and between many websites and trying to find it on here, I haven't had much luck. I'm sorry if I ...
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19 views

Error connecting Qt Cretaor to Raspberry Pi using ssh

I have generated a image for the raspberry pi board using buildroot 2014.11, but while connecting Qt Creator via ssh to raspberry pi board it shows the following error. Connecting to host… SSH ...
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Intermittent and very poor wifi connection on Ubuntu 14.04

I have a brand new desktop PC with Ubuntu 14.04 OS. The Wifi (Using dongle, Mobile Broadband) connection is extremely poor and intermittent. Please suggest solution to fix the issue. Thanks. I was ...
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1answer
39 views

Ubuntu 12.04 no wlan0 interface

I installed Ubuntu 12.04 on an Acer e5-571-31KM. Dmesg and lspci output indicate a wireless Network adapter was found, but according to ifconfig there is no wlan0 interface. Unfortunately I have no ...
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network isuses stays conected but if i use transmition or steam to download somthing internet stops working

If I use transmission or steam to download somthing steam will say not conected and transmition stops download and says unknown and all net functions stop bit it stays conected but this only happens ...
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Does ubuntu wifi sharing process support samsung Galaxy Tab 2 10.1?

:) Lately, I have been trying to share my internet to my android tab(Samsung Galaxy tab 2, 10.1) via Wifi hotspot. What I did: I have used KDE network manager to create a wifi(shared) profile with ...
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Ubuntu 14.04 Wired Network Connection does not work

Running Ubuntu 14.04 on my laptop I can connect to the internet wirelessly no problem but when I try to connect to the router via a lan cable I am unable to get a connection. It seems I am unable to ...
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1answer
23 views

find and connect to wireless camera

I've got an old wireless camera/baby monitor... (4 years old) Worked with an old windows machine that quit some time ago. On the old windows machine it connected via a wireless dongle and software ...
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1answer
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setting up a new wifi in ubuntu 14.04?

Are there any drivers required to setup wifi connectivity using a new router in ubuntu 14.04 like in windows we need extra drivers each and everything ?
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WPA2-Personal Wireless issues

I've been having a major struggle getting my machine connected to my personal network at home. Here is my current setup: I have a Lenovo5536 running Ubuntu server 14.04. I cannot use Ethernet to ...
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Howto: use Ubuntu 14.04 with radius to emulate an ISP

I have an old dual-core machine with Ubuntu 14.04 installed, i decided to make use of it to share internet access for a residence, but i want it on the ISP style, that means a DNS server to resolve ...
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dhcpd server not listening to second interface

I have a 12.04 server which is happily responding to dhcp requests on eth1 (172.16.1.1). Now I have set-up a second interface on eth2 (172.16.2.1). I can ping this interface all right and even ...
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14.04 connects but does not route

After loading Ubuntu 14.04 LTS onto a clean hard drive from a thumb drive with the ISO extracted image onto my HP Pavilion dv7-6b32us, it would connect wireless, but not route or access the internet ...
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How can I setup Ubuntu to act as a VPN router?

I have a PC with Ubuntu installed on it. The PC has two ethernet port, I would like to connect to the Cisco VPN server using eth0 and the other port(eth1) to connect to a switch. How can I setup to ...
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Kernel 3.18 causes pptp VPN to fail if UFW is enabled

Folks, I would like to submit a bug ("i think"), but i first wanted to check with this community to: see if it is really a bug, and not a feature or an ID10T error get your advice on what files i ...
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1answer
31 views

What are the IP addresses and port numbers for Ubuntu update sites?

I need the IP addresses and port numbers of the Ubuntu update sites to be able to perform updates on my systems as we can only open specific ports to specific IP addresses. Can anyone help? Thanks in ...
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1answer
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What could cause “Waiting for network configuration” + 2 minutes unskippable hanging at boot when no network interfaces are configured?

After installation of a bunch of unknown programs (the program causing the problem must have been in the long list of dependencies, /var/log/dpkg.log contains > 38000 entries for the relevant dates) ...
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How do I rectify this sharing error?

I've had some difficulties with samba on a new installation. I right clicked on a folder and selected local network share. Samba installation succeeded, but the libpam-smbpass installation following ...
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2answers
25 views

ip_forward wont stay enabled after reboot

Using Ubuntu Server 14.04.1 LTS I've changed net.ipv4.ip_forward to 1 in /etc/sysctl.conf and when I run sudo sysctl -p it works no problem but after a reboot ip_forward is back to 0. After a reboot ...
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Change iface when internet is slow bash script

Need help with script that will change eth1 or eth2 ( to auto set different route ). I have eth0 that is shared to lan and two different gateways (routers), one on eth1 and second on eth2. For now ...
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1answer
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Looking for network surveillance tool

I sometimes use / test software that cannot be found in the apt tree. The software comes from all over the internet. When executing the software I create an extra user for this particular software and ...
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FCOE Interface Connectivity Issue

We are trying to initialize FCOE interface for EMC SAN (vnx7600) Connectivity using open FCOE utilis on Ubuntu 12.04.5 LTS with Broadcom (brcm 10gbe 4p 57840s-kbndc) network card. But we are able to ...
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How to set a mlppp server

i have two internet connections in my house and i was thinking of combining them to have better speed and reliability. My thought is to have each router in a lan, so 192.168.1.1 for eth 1 and ...
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Ubuntu server connecting to VPN

I'm trying to connect a computer running ubuntu-server to an L2TP/IPSec VPN server. However, the only information I can find is for the Desktop edition. I want to connect all my servers to one ...
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1answer
59 views

Connect Internet in ubuntu Laptop to linux mint Desktop - Has Crossover Cable

I need to share the wifi internet of my ubuntu laptop to my linux mint desktop , I have a cross over cable. ( Connecting desktop to router is not an option) I am able to ping my laptop from my ...
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Can't read permanent MAC address and adapter has no association?

I'm using a Rosewill RNX-n180ube USB wireless adapter on Ubuntu 12.04 64x. I've found two things to be strange that I want to fix. To start, when I put the connection down to use mac changer I get ...
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create range dhcp and give guest static IP adress

Hi i need some help with setting up my ip-addresses for my vm guest and im kinda lost here. To make it more clear for me lets say i have 10 ip-addresses (192.168.1.0 till 192.168.1.10) and i want to ...
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Problem with NIS configuration

I tried to configure NIS in a server and a client both running Ubuntu 14.04 following this guide and this official guide. After a reboot the client machine got locked with this message several times ...
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3answers
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openssh: Permission denied

I am new to ubuntu and just started to configure my first ubuntu server. The problem is with openssh. I made openssh server using tasksel. Forwarded port 22 on router to Server IP. In the local ...
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12 views

TL-WN881ND disconnects within a minute of use

New to ubuntu, need some help with wifi. I've gone through two TP-Link usb wifi adapters (AC600, 'archer', was never supported) and TL-WN727N (appears to have the newer chipset which is as of late ...
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wifi hacking commands not working, airmon-ng not working ? [on hold]

im using a dell inspiron 15r 5537 laptop with win 8.1 x64 .I have installed vmware workstation 10 and created a virtual machine for Backtrack r5 3 ubuntu..i am having trouble with the wireless card. ...
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2answers
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Is there an app which I can check the temperature of my PCI network card?

I have tried Hardinfo and sensors, but they don't look to meet what I'm looking for.
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Domain Name Server & hacking

I purchased an Apple desktop computer for my personal use. I am the only person who would be using it, & my primary use was for my own artwork & photo editing. This is my first computer & ...
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how to Set up a network in 14.04 in a VM

I have installed 14.04 Ubuntu in my VM, after log in, I cannot connect to internet. Neither WiFi nor Ethernet, tried all possibilities. PC configuration Dell inspiron, chipset Intel i5...
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Can't reach server on eth0 when connected to OpenVPN on tun0

I have a desktop (Utopic) and a home server (Trusty) connected to a home router. The router is set to forward some ports to the server. When I connect the server to an OpenVPN provider (on tun0 ...
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how to connect to gateway using Knoppix [on hold]

I have been trying to connect my pc to my router. When I ping it, I get "destination host unreachable". I've statically assigned ip. Included below are the results of my diagnosis. If anyone can ...
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Cant connect to other networks

I have a HP laptop running Ubuntu. I was able to connect to my home wireless network without any problems. When I tried using it at work, I couldn't connect. I can click on the network desired, but ...