Managing and using network connectivity on a Ubuntu system

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1answer
194 views

Where to add the Pre-Shared Key for the Server Authentication with Network Manager for L2TP/IPSEC?

Previously, I was trying to figure out how to install the L2TP/IPSEC manager code. I guess Ubuntu/Canonical switched away from OpenSwan to StrongSwan, but didn't really announce it. So that was ...
1
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1answer
60 views

Wi-Fi connecting to other networks of the same name

I've been running Ubuntu 14.04 on a macbook air for about a year now, and I've recently been experiencing some strange behavior when it comes to my wireless connection. Let's assume my wireless ...
1
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2answers
26 views

Is there a way to view a list of previously joined networks? 14.04

From Windows Vista onward, previously joined networks are stored in the HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\NetworkList\Signatures\Unmanaged registry key. I am wondering if there is a ...
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0answers
68 views

Ubuntu 14.04 really slow wifi

I apologize if this has been asked before and I did find some related posts but none of them got me a solution. So I built a new desktop and my wifi on 14.04 seems to be really inconsistent (keeps ...
0
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1answer
26 views

I cannot get wifi working Dell Vostro 3550 running Ubuntu 14.04

I cannot get wifi working on my Dell Vostro 3550 running Ubuntu 14.04 does anyone know of a driver? Edit: Intel Corp Centrino Wireless-N 1030 [Rainbow Peak] [8086:008a] (rev 34
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1answer
34 views

How to disable network with crontab on ubuntu 14.04?

I am using Ubuntu 14.04 and try to disable network on scheduled time everyday. For example disable it at 5pm everyday. The first thing I tried is crontab as below: 0 17 * * * nmcli nm enable false ...
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0answers
101 views

How To fix a PPTP VPN client connection (Ubuntu on VirtualBox)

I have just installed Ubuntu 14.04 on VirtualBox and I'm trying to set up a VPN client. I have configured it with the same settings I use on a Mac and I am able to connect from that without any ...
2
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1answer
91 views

Ethernet link not detected in ubuntu 14.04 after update

Since I ran some update in the past week or so, I have not been able to get a wired connection. Specifically: Initially, during boot up, the ethernet link light is on As ubuntu boots up, the link ...
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0answers
15 views

Configuration file where set the interface which get ip address from dhcp

I'm running Ubuntu server 14.04 on a VM in VirtualBox. It has a nested DHCP which assign ip addresses to interfaces of the machine. The default behaviour is to assign ip address to eth0 interface. I ...
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0answers
29 views

Setting Up a Routing Table for a Router

I have two network interfaces on my server. They are: eth0 - 192.168.1.2/24 gateway 192.168.1.254 eth1 - 192.168.2.254/24 no gateway as this interface is the gateway for this subnet I want ...
0
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1answer
41 views

How to forward internet connection at eth2 to LAN at eth1?

I have two network cards/connections: eth2 is connected to the internet eth1 is connected to my LAN I want to allow the computers in the LAN on eth1 to access my internet connection on eth2. ...
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0answers
53 views

Ubuntu doesn't detect internal WiFI adapter

I was using WiFi in Ubuntu 14.04. But suddenly i could not see 'Enable WiFi' option. I tried ifconfig it did not show 'wlan0' or anything related to wireless. And I tried with lspci -nn It too did ...
0
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1answer
64 views

Unable to connect to network using terminal

I have been trying to install programs using terminal but every time I get this error: ccmb@ccmb-HP-Pro-3330-MT:~$ wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb ...
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0answers
45 views

problem about setting up unbound with dnscrypt

I tried to set up a local DNS service with unbound and dnscrypt . I set it up and works well . but when I 'm trying to change it to TCP request mode , it doesn't work . the content of unbound.conf : ...
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0answers
19 views

Ethernet Problem with

I am having problem with the lan connection, I have 2 OS windows 7 and Ubuntu 14.04. My lan/ethernet connection works well in windows 7, but in Ubuntu its not working properly.Ethernet connection in ...
0
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1answer
52 views

Can ping to other router subnet but cannot ping host to host

Using VMware, I set 2 hosts connected through a router. All 3 virtual computers run Ubuntu 14.10. Host A (eth2: 192.168.1.11/24) Router (eth2: 192.168.1.12/24) (eth3: 192.168.3.2/24) Host B (eth2: ...
1
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1answer
27 views

Creating a WPA2 Enterprise Connection On Ubuntu Touch

I've recently flashed ubuntu touch onto a nexus 7. Its great, but i can't get it to connect to the WPA2 Enterprise network that is the main source of internet in my university (specifically eduroam). ...
2
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1answer
39 views

spoofed mac address changes when trying to connect to network

So I need to spoof my mac address to access a network. I can spoof it fine with the ifconfig commands, but when I try to connect to the network it gets reset back to the default mac address. Changing ...
0
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1answer
27 views

vsftpd not responding to remote connections

I suspect this is me being dumb, but sometimes it takes someone else to tell you where! I have just revived a development/test LAMP server within the LAN, which was all configured fine last time I ...
0
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0answers
46 views

connecting to internet via lan port

Actually i have two operating systems operating on my laptop (Windows 8.1 and ubuntu 14.10). I cannot connect to internet via lan port. The network icon on the menu bar is not showing the "socket" ...
0
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0answers
53 views

OpenVPN: Public IP still visible when connected to vpn

I'm trying to use a vpn with a proxy using openvpn. I get to connect to the vpn, but my public ip is the same whether I'm connected to the vpn or not, and I don't really know why, but I guess it means ...
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0answers
21 views

softphone parameters for Asterisk connection

Two computers on the network, tleilax and doge. The tleilax box is a server running Asterisk for VoIP. The doge box is running Ubuntu 14.10. In order to connect to Asterisk, I must have certain ...
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0answers
27 views

netdev watchdog timeouts with realtek NICs

Having some problems here I've been searching all over for but am yet to find a working answer for. Notably, examples of this: Feb 16 09:10:37 trillian kernel: [45756.292178] ------------[ cut here ...
0
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2answers
63 views

14.10 - Wifi stopped working on two laptops, both with Atheros AR9285 network adapters

Yesterday morning, two laptops I'm currently using wouldn't connect to a wifi network anymore. One is my Eee PC 1015T on Xubuntu 14.10; the other one is an old Acer laptop on which I've recently (five ...
0
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1answer
26 views

Ubuntu no Internet after using EXPORT https proxy= commands

Yes, I'm a new Ubuntu user (several versions). I got "launchpad" errors and so I was trying to solve it with answers posted in this website. I found the following commands and after I ran them, I ...
0
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1answer
34 views

Cannot ping localhost when resolv.conf.d/head modified

I have observed this behaviour since about a week ago, and I don't think I have changed any related configurations. The problem is that when I run ping localhost, I get the following error: ping: ...
0
votes
1answer
60 views

iperf test - 10/100 router result the same as crossover on gigabit

Was testing my speeds between my Ubuntu Server 14.04 and Windows 8.1 laptop. Ubuntu server had recently had a new 10/100/1000 gigabit card installed, all up and running perfectly and showing ...
0
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1answer
33 views

WiFi is not connecting in Ubuntu 14.04, just asking for authentication multiple times

I am trying to connect with WiFi, and its just asking for passwords every 5 seconds. it was working fine previously, but after the kernel upgrade HWE WiFi is not able to connect, while Ethernet is ...
2
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0answers
74 views

DNS problems, IPv6 not working on ubuntu 14.04; windows or an ubuntu live cd works fine

Ubuntu 14.04 was working fine yesterday. I think I installed some routine updates. Today when I booted up my computer (a thinkpad x220 laptop) I could not get a wired internet connection (there were ...
0
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0answers
34 views

Unstable Network Connection in local network

I encounter serious network problems for a Cubietruck mini-PC in my local network: the connection within my local network is very unstable (I use a wired eth connection). Here are some network tests ...
0
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1answer
79 views

Wi-Fi connection problem with Qualcomm Atheros AR9285 adapter

I've switched my HP Pavilion dv6 from Windows 7 to Ubuntu 14.04.1 LTS several months ago and had no problems whatsoever connecting to the internet via wifi. However, about two days ago, connection ...
0
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0answers
31 views

eth0 on Ubuntu server w/ kubuntu not starting from a cold boot

Before starting, I am running Ubuntu server with kubuntu-desktop. I keep having this same re-occurring issue, and I can't use my previous solution, re-installing the OS. I have too many services ...
0
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1answer
25 views

Alfa AWUS036NH not showing up on Ubuntu 14.04

When I type lsusb I get this as a result: Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0bda:56ff Realtek ...
0
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1answer
40 views

Server stops working suddenly!

So i have a computer with ubuntu server 14.04 installed, And its connected to internet through LAN, The computer has LAMP installed. The computer is accessible through any other computer on the ...
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0answers
25 views

arp -a shows my router has the same mac as a phone?

I've just installed Ubuntu on my PC and I'm having a very strange issue which I haven't been able to find out much information on (most likely due to lack of understanding). Anyway, long story ...
2
votes
1answer
35 views

How can I configure the default transmission rate for 802.11 (“WiFi”)?

I need to lower the transmission rate of my IEEE 802.11g network interface controller to have acceptable an packet loss ratio (< 0.5 %), otherwise it becomes very high (> 50 % is typical, but it ...
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0answers
66 views

Configure private network within a Ubuntu 14.04 LTS KVM host

For learning purpose, I've got one low cost dedicated server to setup kvm host with Ubuntu 14.04 LTS. I'm completely new to this area. First of all I want to setup a private network within the host. ...
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2answers
47 views

What is MAC spoofing in the internet connections manager and does it have any benefit in terms of security? [closed]

What is MAC spoofing in the internet connections and does it have any benefit in terms of security? What is the purpose of cloning the mac or spoofing it? Does it help protect against hackers at ...
0
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2answers
48 views

Ubuntu 14.04 - Hp pavillion dv5-2239la Can´t load Webpages

I recently installed Ubuntu on my laptop, (Linux Mint 17.1 Cinnamon x64) Now, im conected to my router via an access point to amplify area on my house. Note: Ubuntu works well conected directly to ...
1
vote
1answer
90 views

Get IP Address of Machine from Hostname or Mac-address

Is that possible to get the IP address of my machine from the hostname or the machine's own mac address? If yes, how? If not, could you suggest an alternative way?
0
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0answers
28 views

Software update shows a stop sign and no wifi/ethernet connection. 14.04.1

On Ubuntu 14.04.1, have been for a while. Symptoms: Screen resolution is low and no internet connection. I have tried both wireless and cable. There is a no entry ...
0
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1answer
33 views

Problems with internet connection and mouse cursor Ubuntu 14.04

Hi I know there are some other questions concerning similar themes, but I cannot get a answer to my problems. I´ve searched all around the internet and cannot find an answer. I recently installed ...
0
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0answers
60 views

Wifi over USB adapter very slow and randomly disconnecting

As the title states my Wifi speed is very slow when using a USB adapter Ubuntu 14.04. I tried two different adapters, one with rtl8187 chip and one with rtl8191SU chip. The problem exists on both my ...
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0answers
67 views

How can I obtain stable ethernet connection using ubuntu 14.04 on Lenovo G780?

I am using Ubuntu 14.04 on a Lenovo G780 and he problem is that my Ethernet connection keeps dropping all the time. The Network manager tells me it is still connected, but neither can I load websites ...
0
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0answers
120 views

Extremely slow(ethernet) speed on Ubuntu 14.04 vs Windows 8.1 (dual boot)

I recently dual booted my laptop and installed Ubuntu 14.04 alongside Windows 8.1 after reading this post: http://everydaylinuxuser.com/2014/05/install-ubuntu-1404-alongside-windows.html Now, with ...
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0answers
16 views

Should I terminate SSL on the internal network

When our load balancing server makes a request for a server on the internal network, should I: - Terminate the SSL Connection - Keep the SSL Connection Our internal network is in a secure ...
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0answers
117 views

Ubuntu and the wi-fi

I'm not the first, and won't be the last, to be having wi-fi connection difficulties. My laptop is the Lenovo Notebook ThinkPad E550 and my version of Ubuntu is 14.04.1 LTS. It will connect to the ...
0
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0answers
52 views

/etc/network/interfaces suddendly stopped working

I'm experimenting problems with my ubuntu server 14.04 version. I'm only using this computer to access data from outside my home, it was working just fine but yesterday it refused to connect to ...
0
votes
1answer
46 views

Rogers or Rogered? [on hold]

I have recently switched to Rogers internet. I can connect to my wireless router, but it can not connect to the internet. I have searched for answers, but came up short. (Windows connected fine, ...
2
votes
3answers
105 views

Nslookup resolves search domain but ping does not (14.10) [duplicate]

At my company, many of our configuration scripts, etc use just the server name. For example, http://server rather than http://server.company.com. I have configured the search domain in the GUI Network ...