Managing and using network connectivity on a Ubuntu system

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25 views

Packet redirection based upon traffic type

Overview : Is there anything like ufw or iptables that will accept a packet on a port, but then redirect that packet locally depending on the type of packet it is? More info : I have a web server ...
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33 views

Cannot connect to wifi rtl8273AE in ubuntu 15.04

i have already search and try all firmware, i have tried some unofficial firmware from drop box, it give me build erroe and git hub project onn these wifi driver give me signauture error. stock ...
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57 views

wireless not there on a aspire e 15

Bought an acer aspire e15. came with widows 7 or 8. Disabled the new boot and could see Ubuntu USB, installed but no wireless. LAN(wired) worked fine. Realized had put 32 bit, now 'trying' 14.4 64 ...
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37 views

Wifi disabled, have to turn off and turn on

Aye, i recently moved to Xubuntu 15.04 and from time to time when I wake up laptop from suspend wifi cannot connect. It says networking disabled. I tried turnig on option "Enable networking" but that ...
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8 views

What driver should I use for BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] [duplicate]

I installed Ubuntu on my Macair but wifi cannot be detected.My wireless device is Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03). I am wondering which kind of ...
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24 views

Port forwarding issue

i have successfully opened port 3306 for remote access to MySQL. i am trying to open another port (54321) to allow remote tcp/socket communication with a program. if used these commands: ufw allow ...
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15 views

Wireless and Bluetooth and external display not working

This morning when i connect mY HP Folio 9470M (Ubuntu 14.04 LTS installed) to my docking i see that i don't have external display. Later i see that Wlan switch is not working and bluetooth also. It ...
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41 views

Ubuntu 14.04 - issue opening Samba shared locations with Nautilus

As asked I'll try to clarify my issue. I've an Ubuntu 12.04 system (64Bit), on which I've some shared folders. I'll call this SYSTEM A. I'm able to access to these folders from other devices ...
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58 views

Ubuntu 14.04 detects Vodafone 3g dongle, but fails to connect

Earlier I used Ubuntu 12.04 where my Vodafone 3G Dongle (HUWAEI modem) used to connect seamlessly via network manager Mobile Broadband. Now I have upgraded my system and using Ubuntu 14.04, but ...
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14 views

IP Address of Shared WiFi Client

Rather than buy a wifi card or run a very long cable I dedicated an old netbook to share it's wifi connection with a PC via ethernet. Both machines are running 14.04. I had no problem setting it up ...
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25 views

WiFi disconnects in 15.04 on ralink driver

The WiFi will connect for about five minutes, and then disconnect. The only way to reconnect is to reboot the laptop. I have an HP pavilion and the WiFi info is: [103c:18ec] Kernel driver in use: ...
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14 views

How do I make “auto eth0” effective from boot of 14.04 headless server under virtualbox?

I have a Ubuntu 14.04 server guest running under a Win7 host. I want its eth0 interface to start without human intervention when the VM is started, but I always have to "ifdown eth0; ifup eth0". The ...
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12 views

Wireless Networks not detected

I've recently installed Ubuntu 15.04 on my PC, but cannot get the Internet to work properly. It's not detecting any wireless networks around. I was wondering if anyone knew how to solve this problem. ...
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22 views

additional address ip

When I would like to type the command-line sudo ifdown eth0:0, I get this result : ifdown: interface eth0:0 not configured knowing that I added eth0:0 in /etc/network/interfaces : auto eth0:0 iface ...
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100 views

Only my company website won't open on Ubuntu 14.04 LTS [closed]

Have Windows, Mac and Ubuntu 14.04 LTS in LAN. Company website stylecracker.com will open and work fine on all other OS except Ubuntu. It intermittently opens fine else it would crash; irrespective of ...
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30 views

Bridge external IP to the qemu standalone Virtual Machine

I'm having a very specific issue. To let You know what I'm up to, I will describe the whole infrastructure of my system. I've got a Ubuntu host machine on which I run up to 4 virtual Ubuntu ...
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18 views

How to find proxy settings used with MATE Terminal or via a web browser

I'm on a virtualized environment and it has no network manager, as the network settings are pre-defined. I would just like to see the network configuration, not modify it. MATE Terminal shows this ...
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22 views

Can 'ping' but cannot 'traceroute' to WAN target

In a troubleshooting effort, I have the [mis]opportunity to expand my experience into the packet'y aspect of TCP networking. I am new at this - this is something I'd like to learn more about, ...
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1answer
20 views

Editing network interfaces

I've tried to add a few IPs to the system, although when I try to restart the network it fails. I assume it has something to do with the formatting of the file. Can anyone help? ...
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2answers
107 views

Wifi connection not working with Intel NUC + Wireless AC 7620

I am posting here with the hope to get help to solve the problems I have with my wifi connection on my Intel NUC with the Wireless AC 7620 on Ubuntu 15.04. I have copied below the output of the ...
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8 views

Why am I getting permission denied (error 3) in WinSCP when I'm the only user and it's my home server?

I just setup a Linux home server using this guide http://linuxhomeserverguide.com/ and I am now trying to write to my /var/www/html folder because I want to make a website. I forwarded port 80 and ...
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18 views

Installing RNDIS support via module installs

I'm trying to install RNDIS support for hardware I wrote that runs on Windows. I'm using Ubuntu 14 and I've tried to install the rndis_host.ko, usbnet.ko, and cdc_ether.ko modules but every time I try ...
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46 views

“Network error: Connection refused” in Putty when I'm trying to connect to my remote home Ubuntu server

I just set up a linux home server using http://linuxhomeserverguide.com/. I can connect to it from my desktop PC at home via putty using a local ip like 192.168.1.2 (just an example ip), but I want to ...
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1answer
80 views

How to enable Wifi connection in Ubuntu 14.04 LTS

I have installed Ubuntu 14.04 along with Windows 8.1. My Wifi is working in windows but not in Ubuntu. I gave the following command in the command terminal. nmcli nm RUNNING STATE ...
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34 views

Wifi card not recognised

iwconfig does not recognize wifi card, wifi card is enabled and i have all drivers. Manufacturer website informs broadcom 4313 wireless adapter. I have assured that the required drivers are ...
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427 views

how many ethernet cards ?

I want to use my computer as a router. So I checked how many ethernet card I have running : lspci | grep -i net. I got a single line ? Does it mean that I have only one "eth0" ethernet card ?
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23 views

Network Card Refused to change power state after resume from suspend in 14.04, worked fine in 12.04

The ethernet wouldn't work after resuming from suspend, this was not the case in 12.04 after upgrading to 14.04 it happens all the time. Looking at the dmesg output after coming out of suspense it ...
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23 views

Make specific network interface only for specific ip range

I have two network interfaces, one (eth0) is just simple gigabit ethernet which is the main connection of my computer (Ubuntu 14.04 LTS), however I have another - Apple usb-tethering connection (eth1) ...
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2answers
47 views

register DNS for connecting to my computer

I am using a PC at university and I need to set up a DNS name for it under the network of university such as: my-pc.dm.myuniversity.edu for accessing this computer via my laptop from home (through ...
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29 views

I have an OpenWRT VM connected to the WAN, how do I connect client VMs to the OpenWRT LAN using it as a gateway?

I'm trying to setup a lab in KVM on my Ubuntu Linux machine. My goal is to create a test lab in which I can test the configuration of my physical router for my home network, before moving it into ...
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1answer
39 views

Ubuntu 14.04 can't connect to wifi

I'm having difficulty connecting to my building's wifi network after I installed Ubuntu 14.04 on my Surface 1 Pro. Based on the "Network Connections", it looks like my network has the following ...
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1answer
40 views

networking disabled, cant re-enable

For some reason I seem to get disconnected from my wifi as noted by the nm-applet going to the disconnected icon. When I hover the mouse it says networking disabled. When I click on enable networking, ...
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50 views

Wash -i mon0 no output

I just swapped to Ubuntu 14.04 from Arch. I was installing some pentest tools from kali, the issue I'm having is when I run: sudo wash -i mon0 -c 6 It has no output I'm only shown: mass@Mass:~$ ...
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1answer
35 views

HP-Envy 4500 All-in-one printer appears to lose wireless connection

I am on 14.04 and successfully installed the HP-Envy 4500 All-in-one printer. It worked a treat printing via wireless / scanning etc. I don't print that often (probably a few pages every 3 weeks) , ...
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28 views

14.04 LTS / Routing with 2 WAN Lines … on Dom-0 Xen host drives me nuts

Short note: Well I think I might have a solution but need to prove it first. Regarding the NAT on the Hardwarerouters to each WAN-line seem just to do NAT for its own subnet, so I will simply need ...
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7 views

Kubuntu host has no Ethernet, but Windows running on a VM Does

I have a Dell Latitude that I use for work, requiring me to run Windows. I've opted for Kubuntu and VMWare. I have the strange situation in which I can no longer connect to the internet (ping 8.8.8.8 ...
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1answer
37 views

How to set global proxy in ubuntu from configuration URL?

I am on a network which uses Automatic Proxy with authentication. I have been provided a configuration URL, configuring that in web browser I am able to surf web. How do I configure this type of ...
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1answer
72 views

unstable wifi on Lenovo z50-70 (Ubuntu 15.04)

I am using Ubuntu 15.04 on Lenovo Z50-70. My wifi is unstable, it gets disconnect again and again and asks for password. NOTE: the password I input is correct and other users on windows dont have any ...
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1answer
25 views

Why is the state of my NetworkManager changed when I unplug my iphone 4s?

Ubuntu 12.04. iPhone 4s, iOS 7.0 I never noticed that a mobile device could activate/deactivate the Network status of my computer, kind of a surprise .. So what's the point of this network change? ...
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15 views

Switch not detected ubuntu-server

I recently upgraded a server to ubuntu-server-14.04. It's a cluster host with a HP 24-port gigabyte switch connected through eth1 to other node systems. After the upgrade, it doesn't seem to detect ...
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40 views

unable to ping one from ethernet interface [on hold]

There are 2 ethernet interfaces for my Ubuntu server 11.04 which is eth0 and eth1. In that am able to ping eth0 but not eth1. Why is this? eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc ...
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28 views

Networking issues following suspend

I'm running a dual boot with ubuntu and windows on my HP laptop and I'm having trouble doing any sort of wireless networking after I suspend it. I cannot connect to wifi, I also seem to totally lose ...
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14 views

Skype 4.3.0.37-0ubuntu0.12.04.1 Periodically Freezes Ubuntu GNOME and Budgie Desktops

I'm using Ubuntu GNOME 15.04 with GNOME 3.14.4-0ubuntu1 installed. Skype is version 4.3.0.37-0ubuntu0.12.04.1 From time to time, whenever I have a network change or network restart (which happens a ...
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pptp tunnel stalling with qbittorrent

Sometimes i like to have an extra layer of anonymity when downloading files from p2p networks using the torrent protocol. I establish a pptp conection using Debian PPPD, have a look at the settings ...
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42 views

Wireless driver TP-LINK WN727N

I'm not so good at Ubuntu (v. 15.04) and I got the problem... I plugged my TP-LINK WN727N adapter, got drivers (from MediaTek) for it (inside - Ra-link 7601), then I cheching it's work: after ...
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2answers
32 views

Samba stopped working… wrong interface?

After a few days, my samba installation stopped working: the processes are running, testparm is ok, but seemingly it can't connect to the local interface properly (?). I've scanned forums for hours, ...
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20 views

Troubleshoot networking issues

I'm running Lubuntu on my laptop and raspbian on a raspberry pi. In the process of trying to share the wifi interconnection with my raspberry, over ethernet cable, I've messed up my network settings. ...
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18 views

Could not connect to internet on ubuntu (guest on workstation)

I have installed an Ubuntu Server 15.04 on VMware Workstation 10. My host is Windows 8. I have used bridge networking in VMware settings. Now i am not able to ping google.com. The DNS is working fine ...
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96 views

Route internet from built-in WiFi to USB WiFi adapter, which will be used as Access Point or WiFi Hotspot

My laptop is connected with internet using built-in WiFi card. I have another WiFi USB adapter. I want to create an Access point/WiFi hotspot on WiFi USB adapter. I would like to connect multiple ...
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1answer
30 views

Ubuntu server 14.04 internet connection problem

I installed Ubuntu server 14.04 on VMware workstation. I need to set IP manually so, network connection has set to Bridged on VMware. I followed the instructions on ...