Managing and using network connectivity on a Ubuntu system

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Recent patches broke dhclient?

Running 16.04.01 LTS recently upgraded from 15.10. System is a home firewall with enp1s0 as LAN interface statically assigned and enp2s0 is WAN interface using DHCP, connected to modem. Ran apt-get ...
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7 views

How to measure internet traffic usage per month? [duplicate]

I need a way to measure my internet usage per month in order to be able to select the optimal plan from my mobile network operator because I will need to work on the move connected to 4g network ...
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0answers
129 views

Wifi issuse, first time user

I finally built a PC of my own and I created a duel booting system (Windows 8 and Ubuntu). Windows 8 works flawlessly but Ubuntu is the most infuriating thing I've ever dealt with. I can't access the ...
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6 views

Establish a DSL connection using “pppoeconf” failed

I want to establish an DSL connection to a new server, which is of OS: Ubuntu 14.04 Desktop. When I want to configure the network connection using "sudo pppoeconf", I got the following message: "...
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1answer
15 views

maas fails in deploying a node

I have a physical server with ubunut 14.04 and maas 1.8.2 on it with access to Internet. There is a node connected to maas server through a switch. Common configurations for maas's NICs has been taken ...
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18 views

Connection through wireless adapter is lost every few minutes, need to re-connect

Background. Internet through wireless adapter worked fine on 14.04 LTS. Problems started after a fresh install of 16.04 LTS. Installed the driver r8188eu using these instructions. This solved the ...
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4 views

Atheros AR9285 won't connect to WPA2

weird issue I've been running into and been researching and kind of come up with zilch. So basically using a cheap netbook I got from Aldi i got a few years ago, I loaded Lubuntu 16.04, which needed a ...
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2answers
58k views

How to use host names rather than ip addresses on home network?

I've a small home network up and running and managed to set up ssh. Can anyone tell me what I need to do to refer to one computer on the network from another by host name rather than IP address (which ...
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1answer
1k views

How do I use MAAS and Juju with an existing DHCP server?

I found some information about installing ubuntu with MaaS and JuJu, and I would like to try it out however I am not finding any information on how to take in to account a DHCP server already in the ...
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17 views

static mapping between ipv6 address and MAC (equivalent to static arp in ipv4) [on hold]

I want to define in static mapping between ipv6 address and MAC address.(something similar to static arp in ipv4). (i need to do this because my ubuntu machine is connected by lan to interface that ...
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1answer
15 views

How to install TP-LINK Archer T4U driver?

I bought the wireless adapter to use with a computer without internet access but I can't figure out how to install it with just a USB with the driver on it. I've read a few articles on how to install ...
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6answers
7k views

OpenVPN connecting but no internet access on Ubuntu 14.04

I'm trying to connect to a VPN using OpenVPN. I tried using network-manager with OpenVPN plugin and tried too in terminal with ovpn.conf file. Everything connects (it says connection established) in ...
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1answer
20 views

must to do modprob -v rtl8188ee every time i start linux

Good afternoon, I'm having a wi-fi problem: my wi-fi signal was poor so I tried to install ndiwrapper to install windows drivers. It did not work so I purged ndiswrapper after uninstall the windows ...
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4answers
9k views

can't access SAMBA shares on UBUNTU-server from other computers

Installed UBUNTU-server 12.04 and configured /etc/samba/smb.conf as: #======================= Global Settings ======================= [global] workgroup = HEMMA server string = %h server (Samba, ...
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27 views

WiFi not working after latest Ubuntu software update

I have a Dell laptop running Ubuntu 14.04 LTS I purchased it new about a month ago. This morning I got a popup about a Software Update available, so I updated, and now the wifi is not working at all. ...
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13 views

Problem with Coovachilli and Routing

I have network like this: My Net Diagram I wanna deploy captive portal on my private VLANs. The local ip address of Ubuntu server is 192.168.100.1 on eth1 and ip address of L3 switch gateway is ...
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3answers
7k views

Unable to connect to internet on hyper v Ubuntu 14.04

I have set up Ubuntu 14.04 on hyper-v in Windows 8.1. I also have an external network switch linked to Ethernet. The internet and LAN works fine on my host windows 8.1 PC. But I am not able to use ...
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11 views

RTL8187L Wireless Adapter Problem , Internet Doesn't Work on Ubuntu 14.04

I had Ubuntu 14.04 And i have Recently bought ALPHA Wifi (AWUS036H) network Adapter Here's the problem Firstly i don't have a setup file for my ubuntu and i don't know how to install it secondly : ...
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16 views

I can't see Wifi networks. I have realtek wireless card, model: RTL8723BE

I have tried reinstalling rtlwifi-new-dkms Wifi problems with rtl8723be in Ubuntu 14.04 But I still can't see the available WiFi networks: No WiFi networks appearing
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1answer
8k views

How do I get the ath9k driver of backports-3.12-8 installed on Xubuntu 13.10?

I downloaded the 3.12-8 kernel files linux-headers-all.deb, linux-headers-generic_i368.deb; linux-image-generic_i386.deb from kernel.org and installed them via: dpkg -i *.deb Now I'm trying to ...
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10 views

Wired connection - recconecting

I'm using Ubuntu 16.04. To the internet I'm connected with adapter RJ45 => USB-C. Sometimes I just lose connection and it automatically reconnects me to the WiFi (if enabled). When I re-plug USB-C it ...
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4 views

Apache2 LAN configuration not working

I'm trying to set up a virtualhost in Apache2 on my Ubuntu 14.04 headless server. I would like to view the new sites index page and the default apache index page from the browser on my iPad. The new ...
0
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1answer
19 views

Asking remotely a computer to wake another via WOL [on hold]

I understand Wake on Lan can not work if you're trying to wake a computer from outside the network. Currently, on a very far observatory, there's this computer (let's call it "server") shutting off ...
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4 views

Node in MAAS FAILED_COMMISSIONING

I am trying to add a node to the maas cluster. Maas controller is able to wake the node and start commissioning. But it fails at the end and shows the error FAILED_COMMISSIONING. Here is the log from /...
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0answers
16 views

WiFi not working after a recent update [duplicate]

I have an asus laptop and i'm runnning Ubuntu 15.10 alongside Windows 10 . A few days ago an update pop-ed up which required me to restart the system . After i restarted it my wifi was not working (it ...
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+150

no web page can be opened when wifi ap created and connected by android phone

I want to create a WiFi Access Point (AP) with hostapd and dnsmasq on my USB wireless network adapter--9271 Atheros using the Internet connected to my router through my eth0 adapter. lsusb Bus 003 ...
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1answer
29k views

Installing the driver for TP-LINK TL-WN727N on Ubuntu 14.04

I am new to Ubuntu and I have problems with my Ubuntu 14.04. I plugged my wifi adapter but it did not work so I guess I need to install the driver manually but I don't know how to do it. I currently ...
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2 views

Ubuntu Server DC with Samba server 4.4.5 forwarder question

So I've decided to set up a DC via Samba 4 @ my 16.04 Ubuntu server . Question is - since my domain name is SAME as a hosted website domain name somwhere in the WWW (let's call it askubuntu.com) and ...
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8 views

Ethernet not detected

I have Lenovo Ideapad Y700. Even though i have connected my ethernet. In my network menu Wired connections does not appear. Also I have a dual boot.So whenever i switch from ubuntu to windows. even ...
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1answer
362 views

extreme slow wifi on ubuntu 16.04

I have a brand new hp stream 11-r001nd, and I installed ubuntu 16.04 on it since I'm very satisfied with ubuntu (14.04) on my desktop pc. Everything works perfectly out of the box, except for my ...
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20 views

My wireless (BCM43142) won't work

14.04 was getting along with the wireless card until today and I tried many things to fix it but got myself into a mess where I felt reinstalling completely was the best option. I installed 16.04 ...
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2answers
5k views

Installing new network driver ubuntu server 14.10

Ok first of all I was trying to connect my server to my router and set up my apache2 server so my server could be viewable online. But in my attempts to connect, I found that I have no eth0 ...
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2answers
34k views

How to install and configure a TFTP server on 14.04

I've been trying to build a TFTP server on a fresh Ubuntu 14.04 build for a number of weeks using articles that I've found on-line, but all my attempts seem to fail as the TFTP server that I've ...
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1answer
18 views

One network adapter is responding for all the others

All network traffic to 192.168.1.66 & 192.168.1.53, is going to the enp3s0. The only way to have each adapter independent is to put them on different subnets.(e.g. 192.168.2.20, 192.168.1.20) ...
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0answers
9 views

How can I fix the error below with Huawei E303 Modem not showing in /dev/tty list?

I get this error when I use this command: dmesg | grep tty [ 0.000000] console [tty0] enabled [ 20.203778] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0 [ 20.203933] usb 1-1: ...
0
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1answer
21 views

How to configure GSM modem network type (EDGE/UMTS/Auto/etc) since Ubuntu 16.04?

I use USB Modem (Mobile Broadband) to connect to the internet. Prior to Ubuntu 16.04, there used to be a connection setting where you can set a Network-Type (aka gsm.network-type property) through ...
5
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1answer
3k views

How do I get the linksys WUSB6300 wireless adapter to work on linux

I've been using the Linksys USB6300 Adapter but when I switched to Ubuntu it stopped working since its only compatible with Windows. I've tried using ndiswrapper and although it says my windows driver ...
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0answers
9 views

Realtek RTL8188CU network adaptor crashing Network-Manager

This has only ever been a problem for Linux, but not windows which works completely fine. When booting into Ubuntu, and now Linux Mint, everything is fine and my connection strength is more than ...
0
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1answer
5k views

Chipset unkown - airmon-ng

root@ubuntu:~# airmon-ng Interface Chipset Driver mon0 Unknown iwlwifi - [phy0] mon1 Unknown iwlwifi - [phy0] mon2 Unknown iwlwifi - [phy0] wlan0 Unknown ...
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3answers
140k views

Command to get the hostname of remote server using IP address

I want to get the hostname of a remote server using the IP address using my Ubuntu. In Windows we can get using NBTSTAT but this doesn't work in Linux. Does anyone know how to do that?
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43 views

Can't connect to a specific wi-fi network

There are two wi-fi networks that I usually connect to, Network_A and Network_B. I can connect to Network_B without any problems. I had been able to connect to Network_A without a problem for over a ...
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0answers
8 views

set VPN access to network and hosts in local

I use Ubuntu 14.04 and I have problem with my VPN Network settings. I want to connect to my company by PP2P mode but when I connect by default settings I can connect to local hosts in my company (eg. ...
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0answers
20 views

Slow connection speed with Qualcomm Atheros QCA6174 in Ubuntu 16.04

I recently decided to dual boot my Acer VN7-571G-771E with Ubuntu 16.04, but I'm having problems with my wireless network. The connection seems to fade in and out: it varies from being comparable to ...
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14 views

Rebooted laptop doesn't connect to network with lid closed and connected to AC

I have several ubuntu 16.04 laptops that I manage remotely via landscape. When I reboot them they do not connect to the network until I open the lid. Some are wifi and some are wired ethernet. All ...
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1answer
28 views

Route IP range outside of VPN?

So I am somewhat more of a newb when it comes to routing IP ranges. My main problem is that I need to route a couple ranges outside of a VPN that I use. I've run into a few issues with this. I don't ...
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55 views

No wifi after restart in Ubuntu 16.04

After upgrading to 16.04, there is no wifi whenever I restart the system. My Wireless interface of Ubuntu is RT3290 Wireless 802.11n 1T/1R PCIe on iwconfig I got the following lo no ...
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6 views

Wifi keep disconnected after 5-6 seconds of connection

I own a lenovo g570 with wifi adapter "Qualcomm Atheros AR9285 Wireless Network Adapter(PCI-Express)" I installed ubuntu 16.04 on it. It was connected to same wifi- router during installation and ...
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0answers
8 views

wvdial invalid dial command

I am using a USB modem on my system running on ubuntu. When at home, I am able to comfortably connect to the internet using wvdial. But, at a certain remote location where the mobile signals are very ...
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0answers
18 views

16.04 in virtual environment does not detect wifi card

I have win10 - 64bit and installed ubuntu 16.04 under VMware workstation. after power on ubuntu and it does not detect wifi card. im using TP-link Archer T8E_V1 jj@ubuntu:~$lspci -vvnn |grep Network ...
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11 views

Ubuntu 16.04 wifi disconnects after 5 seconds [duplicate]

Just installed Ubuntu 16.04 and cant get to work with my wifi. No issues if i connect to my mobile via wifi hotspot but it throws a strange issue with our office wifi. I start ubuntu, connect to ...