Managing and using network connectivity on a Ubuntu system

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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 ...
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1answer
31 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 ...
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0answers
54 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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61 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 ...
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106 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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15 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
111 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 ...
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47 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 ...
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3answers
85 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 ...
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25 views

Cannot connect to VPN Ubuntu 14.04 [duplicate]

I have installed vnpc and network-manager-gnome and have created a new vpn connection for my workplace with credentials I know are working for others. When I try and connect, I get an instant 'VPN ...
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2answers
92 views

USB tethering from Android speed limited

I am installing Ubuntu 14.10 on workstation. Since i have not wifi card, i am using my huawei mate to usb tethering. The phone is Android kitkat 4.4.2 Network-Manager set up connection correctly, ...
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21 views

How to fix ubuntu received two network cards with chip code conflicts [closed]

I have a server running Unbuntu. Onboard LAN: RT8168. Received normal LAN driver. But when I add a network card more. This network card is also RT8168 code. Then this network card, when reboot. Now ...
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1answer
91 views

How to permanently remove unused/unwanted access points appear in the network menu item Ubuntu 14.04

As shown in the image below, all the access points above the connected network are unused. I want to remove this unused entries from the menu indicator. And I have already tried the solution ...
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1answer
47 views

Ubuntu 14.04 does not detect my wireless network

So I've been using Ubuntu and I find one problem everyday, that is Ubuntu never detects my WiFi network whenever I switch it on. I need to either reboot my router / laptop to get it connected. The ...
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0answers
25 views

Can not connect to Wifi / no sound output ubuntu 14.04 [closed]

Pretty fresh to Ubuntu. After working fine for a month. Turned it on and shows no network devices available. Additionally trying to run saved media, I get no sound. sudo ifconfig -a output: Lo Link ...
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0answers
70 views

Internet Problems (wired) Ubuntu 14.04 No internet access

Newly installed system, I have no internet access. Have Ethernet plugged in and a popup saying disconnected keeps coming up. I assumed it would use DHCP and get everything automatically. The Internet ...
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31 views

How do I connect to a network path in Ubuntu?

So like the title says, I need to connect to a network path in Ubuntu. I need to be able to monitor the files in this directory (I'm planning on using a Perl script to integrate with our Nagios ...
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1answer
44 views

Network connections appear unclaimed after purging linux-images

Yesterday I was having problems with Lubuntu 14.04 updates machine I had to follow this check-marked answer Not enough free disk space when upgrading The answer worked well but Today when I turned ...
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3answers
32 views

External Sitecom Wi-Fi antenna fails to connect to network

I let the external Sitecom Wi-Fi antenna to works, since the Ubuntu setup. So the connection has worked properly for many days... until it began to fails, despite all Wi-Fi networks are recognized. ...
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1answer
19 views

IPv4 is not getting configured on Ubuntu in a dualstack (IPv4/IPv6) network

I set up a router with IPv6 capabilities (I replaced the firmware with OpenWRT) as my main router and successfully configured DHCP including static leases. Almost everything works fine, all IPv6 ...
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0answers
73 views

Broadcom BCM43142 not working on Ubuntu 14.04 [on hold]

I installed Broadcom BCM43142 using all methods I could find using Google and AskUbuntu, but they were all unsuccessful. I am running on Ubuntu 14.04.
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44 views

Wifi detecting but not connecting

I just installed Ubuntu 14.04 LTS. I am able to see the wifi but not able to connect to it. It keeps asking for my password again and again. I am able to connect to my phones hotspot and and other ...
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18 views

Chrome refusing to reconnect to open website after changing network connection type

Using Google Chrome 40 on Xubuntu 14.10, I sometimes switch my network connection from wireless to ethernet (or vice versa) while I have some tabs with websites open. After this, I cannot seem to ...
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3answers
59 views

Ubuntu / Apache2: I cannot open port 443 [duplicate]

I am trying to install a SSL certificat on my Ubuntu 14 server (using apache 2). For some reason the port 443 appears to be closed I installed and enable ssl /etc/apache2/ports.conf is as ...
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30 views

How does the Linux bridge works when a tap interface is connected

Assume the following scenario: brctl addbr BR0 tunctl -t tap0 brctl addif BRO tap0 brctl addif BRO eth13 ifconfig eth13 promisc up ifconfig tap0 promisc up ifconfig BR0 up Eth13 is connected ...
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2answers
40 views

Issues with my wifi after installing ubuntu 14.04

Good day. I am a new linux user and after installing ubuntu trusty tahr I couldn't use my wifi anymore. I issued the command lspci -vnn | grep Network here is the output: 06:00.0 Network controller ...
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1answer
9 views

Why do 10Ge intefaces show up a p55p1 and p55p2

I just installed to 10GE nics into servers running 14.04 and 14.10 and the interface names show up as p55p1 and p55p2. Why is that ? When I added 10GE nics to 12.04 boxes the nics just came up as eth2 ...
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39 views

Windows local network access to apache virtual hosts on a ubuntu DNS domain

I have set up a Ubuntu Server machine (14.04) with LAMP, and I have set up a static domain name with bind9 at http://webserv.dev. That domain is showing up when I try to access it from a Windows ...
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1answer
84 views

How do I configure the search domain correctly (14.10)?

I recently installed Ubuntu GNOME on my work computer, replacing Windows 7, because I will be doing a lot of Linux development work. Many of our configuration and development scripts use shortened ...
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0answers
5 views

keypad issue when i use terminal.most of the keys dont work properly

how to change keypad settings? when i write c programs in terminal most of the key don't work properly.i am using English US keyboard format only.
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24 views

Ubuntu 14.04 LTS wlan limit

months ago I was tried the Ubuntu 14.04 LTS in my LG A530 and have some problems with wlan speed. Now I'm here for try to solve this problem. In Windows 8.1 partition, my wlan get the maximum speed ...
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15 views

modifying wireless network driver by adding data structure to it

I barely have any knowledge about writing a device driver. But now I am starting to work on a project which requires modification to the wireless network driver. I am actually using the Intel Wifi ...
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1answer
20 views

Installing IPcop with an established Ubuntu installation

I have installed IPcop as instructed from a CD made from their iso. The installation goes on a separate hard drive. When I boot my machine, IPcop comes up and loads then gives me a command line. How ...
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46 views

Unable to ping through vxlan tunnel in Open vSwitch.

I am unable to ping through a vxlan link in Open vSwitch (OVS) when the frame size is too big. It seems ovs doesn’t fragment big frames when sending then through the vxlan tunnel. Pinging worked in ...
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0answers
17 views

How computer installed ubuntu 14.04 share 3G network through Huawei Media Pad Youth 7 connect via usb cable

As mentioned in the title, how computer installed ubuntu 14.04 share 3G network through Huawei Media Pad Youth 7 shared connect via usb cable? I've been searching some tutorial on google, but I can't ...
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27 views

pacemaker on ubuntu 14.04.1 LTS trusty

I have installed heartbeat and pacemaker on ubuntu 14.04.1 LTS. I have used the following conf for heartbeat root@ser1:~# cat /etc/ha.d/ha.cf autojoin none bcast eth1 warntime 3 deadtime 6 initdead ...
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0answers
41 views

how to setup a wireless connection? [closed]

I have a Wireless USB adapter (Evo wingle). Now let me know how to set up an internet connection at my Linux OS (Ubuntu 10.10). I tried to setup connection, but failed every time as I don't know: ...
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32 views

eth0/wlan0 bridged, no connection without loopback

Ok bear with me because I'm fairly new to this ;) I just installed ubuntu 14.04 and my network interfaces seem to be bridged....wlan0 is being assigned the mac of eth0, also I have normal ...
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1answer
12 views

What makes an analog modem pickup an inbound call

I have a series of Modems connected to Ubuntu 12.04 3.2.0-23-generic-pae via a PCI-E card and the system recognizes them as ttyS0, ttyS4, ttyS5, ttyS7 No matter what the serial connection is, ttys4, ...
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2answers
28 views

Can wireless credential information be save with a guest user account

What I have are laptops that have a customized user account and can auto-login and auto-launch Firefox browser. So the next step is I want to do is to lock down this user account. However, if I do ...
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0answers
20 views

How many rules can iptable handle in different machin?

I am trying to design a traffic shaping scenario . I am using iptables to create filters but i must create 80,000 rules. I want to know , how many rules iptables can handle ? I read different articles ...
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2answers
43 views

Ubuntu Server not using proxy settings

i am using the ubuntu server package (terminal only) and i am struggling to get the proxy server working. there is no username/password for the proxy. When i am trying to do sudo apt-get update i ...
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0answers
19 views

Network Printer password remember

I have my computer to connected to the university network, and I added the library printer to Ubuntu so I can send file to printing. Every time I try to print a document, it asks me to write the ...
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0answers
25 views

Internet freeze while synchonizing repository

I'm having a problem with my Internet connection. When I start synchronising a repository on Github it usually stops at 30 - 40 % and starts showing this error: fatal: unable to connect to ...
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1answer
317 views

Transmission daemon over OpenVPN on a BeagleBoard ARM SBC

I have recently acquired a BeagleBone Black, onto which I've installed Ubuntu using this method. It has all worked so far. I want to use my BeagleBone as a torrent box, but I don't want to do it ...
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0answers
30 views

Firewall Config to get access to ports via eth0

My headless ubuntu Server has an OpenVPN client that connects to a gateway provided by PIA. I gathered some settings provided here to basically setup kill switch I have a domain that redirects to ...
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1answer
33 views

How to access MySQL on Ubuntu from Windows SQL server 2008?

I have created a virtual machine running Ubuntu 14.04 system and I have installed the web application Moodle (platform interactive e-learning). Also I have created another Virtual machine running ...
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1answer
27 views

FTP and WWW services don't acknowledge connections

I have Lubuntu 14.04 LTS with vsftpd and the lamp stack (apache2, etc.) installed. Everything works fine on the LAN. Externally, the services don't acknowledge connection attempts. I can see packets ...
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2answers
142 views

Intel Dual Band Wireless 7265 dropping connection

I am running Ubuntu 14.04.01 LTS on an Acer V Nitro laptop which has an Intel Dual Band Wireless 7265 controller. The driver version is 3.13.0-45-generic with firmware 22.24.8.0. The connection is ...
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1answer
26 views

Making ubuntu a WINS server?

The scenario: We have a Ubuntu 14.4. And we are creating windows mobile 6 ce based solution. The solution pulls and uploads files to folders from the mobile device to the server (whih is ubuntu). We ...