NetworkManager is a set of co-operative tools that make networking simple and straightforward.

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3
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1answer
1k 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 ...
2
votes
1answer
376 views

DNS issues with Cisco VPN (vpnc) on 15.04

I'm having issues with DNS resolution of on-network servers. I can get them directly via IP address, however DNS lookup fails. Notes: I configured the VPN connection via NetworkManager. The ...
1
vote
1answer
105 views

How can I reinstall dnsmasq?

I accidentally removed dnsmasq from my computer by running rm /etc/init.d/dnsmasq I was working in root when I did it. I was trying to learn how to stop DHCP and just messed up. (Now I can't ...
1
vote
1answer
461 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 ...
0
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0answers
89 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) ...
4
votes
1answer
3k 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, ...
1
vote
1answer
41 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? ...
0
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0answers
53 views

Network conn problem when wifi and ethernet are active

I have ubuntu 15.04 64 bit , when the laptop is connected to the house's network using Wifi and ethernet at the same time I don't get network connection . But each one works alone . How can i get ...
0
votes
1answer
34 views

Networking indicator missing in Ubuntu 14.04

Networking indicator missing in Ubuntu 14.04 When I update my system and then restart, my system network indicator is not shown in unity panel. I try to edit: Exec=dbus-launch nm-applet in /etc/xdg/...
2
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0answers
2k views

IPSEC/L2TP Ubuntu Studio 14.04 (Strongswan)

My first question: Does Ubuntu support IPSEC/L2TP/PSK vpn CLIENT? My Second Question: Is there a front end "Network Manager" that supports IPSEC/L2TP and PSK? Background: In my endeavors I came ...
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0answers
1k views

How to configure IPSec VPN on Ubuntu 15.04

In order to connect to the VPN I only need a few configuration options: server.domain.name PSK user pass What is the proper way to configure an IPSec VPN connection on my Ubuntu 15.04? I installed ...
0
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0answers
238 views

Wifi keeps disconnecting in Ubuntu 14.04 LTS

I have a Lenovo Y-5070 Gaming Laptop which I purchased in December 2014. I have dual booted my laptop, Windows 8.1 alongside Ubuntu 14.04LTS. It came pre installed with Windows 8.1, but for project ...
0
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0answers
115 views

Create openvpn connection without saving Password

I'm trying to setup an openvpn connection to our production environment using networkmanager-openvpn on ubuntu 14.04. Yes, I know how to do it using sudo openvpn ...conf.openvpn. That's not what this ...
0
votes
2answers
524 views

Network Manager (as well as wicd) don't connect to Wifi

I experience an error on Ubuntu 14.04 Trusty Thar with my Wi-Fi. After installing Ubuntu some months ago, I did not have any problems. Just recently I followed this guide on what one should do after ...
0
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2answers
343 views

Obtaining automatic IP with network-manager fails, but static works with wicd

Update I've connected to my home router with wicd and a static IP. Thus, the problem seems to be that my laptop cannot get an IP address automatically. Hence, the main question now is: How can I get ...
2
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0answers
1k views

Wifi stops working randomly after a while on ubuntu 14.04LTS

I shifted from windows to ubuntu for first time on HP r-15 laptop and dual booted ubuntu 14.04 LTS with windows 8.1.But i am having problem with wifi.I can connect to wifi without any problem but ...
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0answers
151 views

Ubuntu 14.04 Server - Networking Disabled upon Reboot

I am a brand new user to ubuntu, so bear with me through this. I recently installed ubuntu 14.04 server on an old laptop to use as a media server. Installation went fine, upon rebooting though both ...
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0answers
170 views

System network services not compatible

There are several other older posts regarding this issue but suggested workarounds (most not fixes) are not resolving for me. I started with v12.04 and had the issue. I WAS able to access the ...
0
votes
1answer
739 views

Why do I get IP 10.42.0.1 when plugging in an Ethernet cable?

For a few months I have the problem on my Ubuntu 14.04 box that when I plug in my Ethernet cable into, I get the IP 10.42.0.1 assigned instead of getting an IP via DHCP. I can fix this problem ...
0
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2answers
572 views

In ubuntu 15.04 ,wired and wireless are not connected after running sudo apt-get purgr network-manager-gnome network manager

I run command sudo apt-get purge network-manager-gnome network-manager. After running that command wireless and wired networks are not connected to my laptop. And when I look into "system setting->...
0
votes
1answer
251 views

No OpenVPN option in new connection dialogue

I am having an issue in 15.04 with NetworkManager vpn connections. I have openvpn installed, but it does not show up in Unity as an available connection type. john@john-desktop:~$ lsb_release -drc ...
0
votes
1answer
118 views

Cannot connect to wired connection after clean install (both 14.02 LTS and 15.04)

I just built a new PC and successfully installed Ubuntu without any errors. However, I cannot seem to connect to a wired ethernet cable. The ethernet works, because I can plug it into a different ...
0
votes
1answer
26 views

Ask me before switching to a different WiFi network?

Currently in my lab, not all the WiFi APs are working properly. What happens is that my laptop switches to a not working WiFi every now and then. It's very inconvenient. Is it possible to configure ...
1
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3answers
162 views

Default entry for /etc/network/interfaces

I accidentally removed everything inside my laptop's /etc/network/interfaces file. Now it does not find any WiFi network/SSID I Tried to change to this but it still has problem: auto lo Iface lo ...
1
vote
3answers
395 views

Network (LAN) stops working randomly - reconnecting helps

I randomly have the problem on my 15.04 that the Internet connection via LAN stops working. This often happens directly after boot, but sometimes also just in the middle of a surfing session without ...
1
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0answers
57 views

Two browsers, two internet connections, eth0 and wlan0

I would like to use both eth0 and wlan0 at the same time in different browsers.(say eth0 for Firefox and wlan0 for Chrome). Requests to eth0 should be governed by a proxy server and the wlan0 should ...
1
vote
2answers
1k views

Can't connect to PPTP VPN server

I'm facing issues when trying to connect to a windows vpn server. On my win 8 I can connect without problem; when I go to my ubuntu I can't connect to the vpn. It is the same desktop, so the same ...
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0answers
48 views

wireless connection asking password for every connection fail

My system knows the password for a wireless ssid, and it is connected too. but whenever the wireless connection is disconnected it should always try connect to it, but after three or 4 attempts it is ...
0
votes
1answer
216 views

TCP retransmission to one server, only on ubuntu

Here is the situation: We have couple of computers in office but only two of them have issues connecting to our company website. Both runs ubuntu. It's always like this: I can connect to website 3-4 ...
4
votes
0answers
892 views

Network Start error [closed]

I use Ubuntu 14.10 desktop X64 and when I switch from single usermode to init3 mode I face no network connection so i use the command NetworkManger to start it but I get this error (...
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vote
0answers
389 views

Enable eth0 without plugging cable to connect to virtualbox bridge

I'm using Ubuntu 15.04 with NetworkManager. I have internet connection on wlan0(dhcp, 192.168.1.0/24) and static ip on eth0(local network, 192.168.124.1/24). On my virtual machine in VirtualBox i ...
1
vote
2answers
244 views

Minimal Display Manager sought

After getting a 3G modem for my laptop, I've started using Network Manager to manage my connections, and I quite like it. However, it is slightly annoying to have to be root to make any changes, ...
0
votes
1answer
25 views

Separate Ethernet card from Network Manager's management

I have Network Manager on my 14.04 laptop. It currently manages the networking. Unfortunately, I don't want Network Manager to manage the Ethernet card, eth0, and I just want it to handle the ...
0
votes
1answer
67 views

set static ip problem

I've tried to set this right for some hours, but when I restart service networking, I don't have any ip address at all. My /etc/network/interfaces look like this: auto lo iface lo inet loopback ...
9
votes
6answers
5k views

How to know what DNS am I using in Ubuntu from 14.04 onwards

(A follow up to similar question for 12.04.) Prior to Ubuntu 12.04, you may see the active DNS in /etc/resolv.conf. In Ubuntu 12.04, NetworkManager no longer works with the file. You have to directly ...
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2answers
2k views

How to reset Network Manager to default?

This is what I have in my network menu. I've tried many workarounds from deleting entries to all that. Can you suggest any solutions?
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0answers
615 views

Can't get ethernet connection to work with 'Intel Corporation 82579LM Gigabit Network Connection (rev 04)' on Ubuntu 15.04

I am trying to get ethernet connection to work on a hp compaq 8200 elite sff computer, but with no success so far. When i plug in an ethernet cable, the network icon starts the searching animation, ...
0
votes
2answers
660 views

I can't connect to new router with same ssid

I have a problem with my wifi in Ubuntu (15.04). Recently, I have changed my wifi routers. Due to differents devices that was already configured, I have configured the new router with the same SSID ...
3
votes
0answers
73 views

Ubuntu 14.04 - Modify OpenVPN files manually

I am using a VPN (Private Tunnel) to download stuff / play games at dorms (ports are blocked, VPN allows me to bypass that). I also am trying to create a script in python that allows me to create new ...
0
votes
1answer
166 views

add additional ip in ubuntu 14.04

vi /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE="eth1" HWADDR="FA:16:XX:XX:XX:XX" BOOTPROTO="static" NM_CONTROLLED="no" ONBOOT="yes" TYPE="Ethernet" IPADDR="157.0.0.101" NETMASK="255.255....
1
vote
1answer
371 views

VPN - short read (-1): 'Message too long'

So I'm trying to use my VPN at a hotel wifi where I'm on a vacation, but for some reason I get this annoying problem. When I connect to my VPN in about a few seconds it breaks, and syslog shows: Jun ...
0
votes
1answer
73 views

Wifi keeps on dropping in Ubuntu 12.04?

I am using ubuntu 12.04 and I am having issues with my wifi. Every five the connection drops in my laptop(it shows that it is connected to the network but the internet connection is not there) and I ...
1
vote
1answer
561 views

I can't connect to wireless network

I was trying to connect to wi-fi with lubuntu but I could not, I don't know exactly what is the problem, I used nm-applet and that was the result: nm-applet ** (nm-applet:13926): WARNING **: ...
0
votes
1answer
132 views

wicd-curses errors on fresh default 14.04 install

I have a brand new fresh 14.04 ubuntu install but cannot get wicd-curses to run. I can use wicd-gtk but I need wicd-curses to work as well. ERROR ~ sudo wicd-curses [sudo] password for ry: ...
0
votes
1answer
367 views

How can I route between different network using multiple ethernet card?

I have two ethernet card in the PC, eth0 is connected to the local network(192.168.0.0/24), and the other is connected to the internet. I can reach all the devices which are connected to this ...
2
votes
1answer
490 views

ubuntu 14.04 VPN: <info> VPN plugin state changed: stopped (6)

I'm trying to connect with vpn to work I get the following: Jun 11 17:48:11 MYLAPTOP NetworkManager[1104]: <info> Starting VPN service 'vpnc'... Jun 11 17:48:11 MYLAPTOP NetworkManager[1104]: &...
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0answers
547 views

Network Manager: Failed to determine AP security information

When I isseu the following command: $ nmcli dev wifi connect apname # or $ nmcli dev wifi connect macaddress It throws the following error: Error: Failed to add/activate new connection: (32) ...
1
vote
2answers
135 views

Is there a way to force use of one particular DNS server among multiple listed?

Before pushing new configuration changes on our DNS servers, I like to test and verify on a 'test' server before applying the changes on our 'production' servers. So this is my deck network config : ...
2
votes
0answers
81 views

Vpn problems with Ubuntu 12.04 are driving me mad. What further issue(s) could be contributing? And how do I fix it?

I'm using Ubuntu 12.04 and have had to manually configure my vpn since the network manager just wont connect for unknown reasons. Additionally I cannot use openvpn or vpnc as I don't have assess to a ...
0
votes
1answer
259 views

Wireless is not working in Ubuntu 15.04

I have an Intel Centrino N-1030 [raindbow peak] wireless card in my Dell Laptop. I've used Ubuntu on this laptop since 13.04 (I think) and didn't had any kind of wireless issue. I have Ubuntu 15.04 ...