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

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1answer
8 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 ...
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12 views

Not detecting specific wireless network in Ubuntu 12.04?

I have Ubuntu 12.04 installed along with windows 8.1. I recently changed the wireless router at my home and following changes occured: Initially Ubuntu didn't detect my wireless network and but once ...
0
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1answer
15 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 ...
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1answer
19 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 ...
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3answers
29 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 ...
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2answers
55 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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1answer
21 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 ...
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2answers
24 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
35 views

Problem with network-manager. How to clean things up?

It is about a couple of weeks that my network manager it is very annoying to me. What happens is that it tries to connect to a known Wi-Fi network (no matter if with or without authentication) but it ...
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0answers
15 views

Gnome network settings - no connections tab

In ubuntu system>network the dialogue shows only General,DNS and Hosts. There is no Connections tab. How can I fix this?
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0answers
15 views

Connecting to a VPN only works from the login screen

I setup a new connection through network manager to my work's pptp VPN. When I'm logged into my account, when I select the VPN connection from the network manager applet it does nothing. The error I ...
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0answers
10 views

Can't connect to 802.1x Wifi, constantly asks for authentication

When I arrived at work last week my laptop suddenly kept getting asking for authentication to connect to the 802.1x WiFi. All other WiFi networks work fine. My other devices also connect to the 802.1x ...
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0answers
20 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 ...
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0answers
40 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 ...
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0answers
12 views

Network Start error

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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0answers
19 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 ...
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0answers
20 views

Duplicated wpa_supplicant after upgrade to 15.04?

I've noticed a weird behaviour after upgrading to Ubuntu 15.04. It seems like there are two devices connecting to my home WiFi network - and when a "wrong" one connects, the "real" one cannot connect ...
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0answers
22 views

Why does connecting to a WiFi network fix DNS settings on another network interface?

I use EasyTether for USB tether to my MBA running Ubuntu 15.04. The steps to do this used to be: easytether connect sudo dhclient easytether0 At some point (probably after the upgrade to 15.04, ...
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2answers
47 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, ...
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1answer
17 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 ...
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0answers
17 views

Why does my eth0 interface always shows the same inet addr in different LAN

Problem in my Ubuntu 14.04 is eth0 interface always shows the same inet address regardless of network in which I am and the name of the interface has also changed from eth0 to eth1 due to some unknown ...
0
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1answer
43 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 ...
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2answers
255 views

How to know what DNS am I using in Ubuntu 14.04

(A follow up to similar question for 12.04.) Prior to Ubuntu 12.04, you may see the active DNS in /etc/resolve.conf. In Ubuntu 12.04, NetworkManager no longer works with the file. You have to ...
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2answers
47 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
16 views

Nagios is not showing maps and hosts in web interface

After performing a system reboot, Nagios is not displaying hosts and maps options in the nagios web console. How can this be resolved?
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0answers
58 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, ...
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2answers
21 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 ...
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0answers
29 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 ...
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0answers
35 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" ...
1
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1answer
23 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
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1answer
16 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 ...
0
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0answers
20 views

I cant use my Mullvad VPN on ubuntu?

I have opened the mullvad client and put in my account number that they gave me. I have also paid through bitcoin for a vpn and on their website it says that it has been received but on the terminal ...
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0answers
14 views

Open NAT with ICS

I've been trying for days to achieve an open NAT with ICS ubuntu 14, It is open when I use windows 8 to bridge but I wish to move over to ubuntu but this is stopping me connecting to friends online ...
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0answers
47 views

How do I set a preference for 5GHz over 2.4GHz Wifi in Lubuntu 12.04?

The 5GHz network is less congested than the 2.4GHz. My first choice would be to have both networks available but prefer 5GHz. My second option is to disable 2.4GHz so b/g/n networks are unavailable. ...
0
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1answer
59 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
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1answer
16 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: ...
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1answer
28 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 ...
0
votes
1answer
13 views

Can someone make these VPN configuration instructions more clear to a layman?

I use a VPN service inside a virtual machine running Lubuntu. It's worked well for years, but recently something has changed and the connection speeds are crazy slow. I googled for solutions, and I ...
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0answers
40 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
20 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
38 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
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0answers
64 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
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0answers
51 views

Sharing wireless internet connection through wired access point

I'm not really competent in networking so some of this might be trivial and/or downright stupid but here I go. I have an access point (Netgear N150) that I use to create a WiFi network shared by ...
0
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0answers
22 views

Troubleshooting 2 network cards Ubuntu 10.04 ltsp server

I have run the installation twice in the past few hours. I already have both network cards installed, have checked resolv.conf,nm-network....conf,networkManager and /network/interfaces; all the ...
0
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0answers
6 views

Does the Linux Kernel support MobileIPv6 ?

I am working on MobileIPv6 and want to know if the Linux Kernel supports MobileIPv6 protocol? If yes, which version of the kernel? Also I want to know if there is a MobileIPv6 implementation similar ...
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0answers
44 views

Wifi not working for a Particular wifi network

[edit] I freshly installed ubuntu and my wifi stopped connecting to a specific wifi network. Similar to this problem : WIFI not working on one specific wifi network I can connect to any wifi network ...
0
votes
1answer
105 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 ...
1
vote
1answer
42 views

Spoofed MAC address - Internet disconnects

I have spoofed my ethernet MAC address using the "Edit Connections" option (available under the network) as well as by using macchanger. But I'm facing an issue of frequent disconnections, i.e. the ...
0
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1answer
49 views

Network Applet has disapeared after an update to 15.04 (unity interface)

I can't see if I'm logged on my wifi lan or internet lan since I update my ubuntu to 15.04 (I use Unity interface). I tried to update to kernel 4.0.3 but it changed nothing. The notification on the ...
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0answers
23 views

why my wired network often fails

my ubuntu version is 14.04, and I use manual ip address. eth0 Link encap:Ethernet HWaddr f8:bc:12:9b:a5:8d inet addr:192.168.9.30 Bcast:192.168.9.255 Mask:255.255.255.0 inet6 ...