Managing and using network connectivity on a Ubuntu system

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How do I resolve the slow internet connection issue with Ubuntu?

My Internet connection suddenly have slowed down in my Dell Inspiron 1525 laptop. Other people in the same Wifi network have sufficient speed?How do I resolve my problem?
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Cisco AnyConnect VPN, install issue, vpnui not executing

I was able to install Cisco VPN AnyConnect client with no issue in Linux Mint 17. However, in Xubuntu 14.04, I get the following issue when I run, sudo sh ./vpn_install.sh: Do you accept the terms ...
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How to make my wifi network re-connect after it loses connection?

I have setup my wireless network like this: /etc/network/interfaces auto lo auto wlan0 iface lo inet loopback allow-hotplug eth0 iface eth0 inet static address 192.168.1.70 netmask ...
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1answer
27 views

How to create WiFi Hotspot when connected to wireless network in Ubuntu 14.04?

I followed this guide [KDE's network manager] http://ubuntuhandbook.org/index.php/2014/06/share-internet-with-android-ubuntu-1404/ but this is for wired connection. How can i create a wifi hotspot ...
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1answer
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mount.cifs: How to avoid long timeouts after switching IPs (wired <=> wifi)

When undocking my notebook from the docking station with its wired ethernet connection I let network manager automatically switch on the wifi radio. Upon entering the docking station I let it switch ...
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1answer
11 views

Connecting wifi usb adapter netgear a6100

I have an Acer aspire xc-603 and have previously acquired a netgear a6100 wifi usb adapter. have any ideas of how to connect to my computer?
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wifi adatper on Dell Inspiron 1012m stopped working

I bought a Dell Inspiron 1012m for my mother-in-law. Thanks to others, a virus so corrupted the OS (Windows) I had to reformat the harddrive. I installed Ubuntu 12 (updated to 14). It had been ...
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1answer
18 views

Ubuntu server can no longer get address from DHCP

A couple of years ago, I set up an Ubuntu server with RAID to act as a home file server. All was well until last week, when my other computers could no longer access the files. My problem is ...
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Dual boot Windows 8.1 + Ubuntu 14.04 - Cannot connect to my wi-fi on ubuntu

just yesterday I installed a copy of Ubuntu 14.04 alongside my Windows 8.1. I was at my relative's house yesterday, and the Wi-Fi there worked on both Windows and Ubuntu. Now I'm home and I cannot ...
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1answer
31 views

Wireless network disconnects and is inconsistent. (14.04)

I recently built my desktop and am new to linux. I wanted to try it out and am generally satisfied, but I am experiencing inconsistent internet disconnects. Sometimes it will be about once every few ...
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VirtualBox Ubuntu internet connection problem on Chrome ERR_ADDRESS_UNREACHABLE

I am a beginner Ubuntu user, I use it via VirtualBox. I was eligible to connect internet yesterday, but today I can't access most of the sites. For example I can search something in Google, but I ...
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Mediawiki only accessible from Windows clients

I've installed Mediawiki on Ubuntu server 14.04. Mediawiki works perfectly when I type the hostname of the server into a browser on one of my network's Windows clients. I've used both: ...
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1answer
18 views

Long boot time due to “waiting for network configuration” - but network is configured statically

My system has a statically configured network that is fully functional. However, booting needs a long time due to "Waiting for network configuration" messsages. What can be the cause for this? I ...
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2answers
52 views

reinstall wireless driver [on hold]

My network center is not displaying any wireless connections even though I know there are several in the area. I am trying to reinstall my wireless driver with the hopes that I can get it working. ...
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1answer
35 views

No wifi networks detected

I just got an older macbook air from a friend and it was running a bit slow so I decided to use Ubuntu! I have used Ubuntu in the past but I'm sort of a newbie so please bear with me. When I ...
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1answer
7 views

juju deploy fails with “lookup store.juju.ubuntu.com: no such host”

I have a MAAS setup (using KVM) with 1 MAAS controller and 1 server node. I could "juju bootstrap" successfully and following is the output of "juju status" vishal@maas:~$ juju status environment: ...
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ubuntu 12.04 booting freezing on “Booting system without full network configuration…”

I have Asus laptop with Ubuntu 12.04 on it, the problem start after I change the permission of /etc which result that I can't execute the sudo commands when I tried to change the permission I got this ...
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nm-applet disappeared from top panel Ubuntu 14.04

Can someone please tell me what this error is? (nm-applet:2819): nm-applet-WARNING **: Could not find ShellVersion property on org.gnome.Shell after 5 tries ^Cnm-applet-Message: PID 0 (we are 2819) ...
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45 views

Xorg high cpu usage when wireless connection is active

I use Xubuntu 14.04 LTS 64-bit (3.13.0-43-generic) on a low-end notebook (AMD C-70, 2GB RAM, RTL8188EE) and a router D-Link DSL-2640B. The wireless connection looks fine, but it is impossible to use ...
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1answer
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Waiting 60 more seconds for network configuration [duplicate]

My laptop (Ubuntu 14.04) is taking too long showing a message "Waiting 60 more seconds for network configuration"
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60 views

Network fails and won't reinitialize Ubuntu 14.04

I have a freshly installed Ubuntu-Server 14.04 instance. Nothing is installed yet other than the base system, OpenSSH server, and LAMP server (as selected in the install process). It is connecting ...
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1answer
32 views

What does this mean? [duplicate]

E: Dynamic MMap ran out of room. Please increase the size of APT::Cache-Limit. Current value: 25165824. (man 5 apt.conf) E: Error occurred while processing octave-io (NewVersion1) E: Problem with ...
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1answer
56 views

Ubuntu 14.04 LTS wireless not working

So I have Ubuntu 14.04 LTS installed on my Dell studio 1555 and my wifi was working before but after a recent update and upgrade, it stopped working. Here are the contents of my wireless-info.txt file ...
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1answer
26 views

Forwarding ports with iptables not working?

I have an ubuntu server (14.04.1) which is asking as a router for my network. It has an internet facing interface, eth0, and a second interface, eth1, for connecting to my 10.0.0.0 network. I am ...
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3answers
55 views

Where are my iptables?

I ran the code: iptables-save -t nat -A PREROUTING -d 79.3.191.226 -j DNAT --to-destination 192.168.0.14 But I don't know if it worked since I cannot find the iptables file inside my directory. ...
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How do I configure internet connection for Terminal on Ubuntu 14.04?

I've installed on Ubuntu 14.04 and with I've Broadband connection setup, Browser connection is OK, but Terminal not connection via internet, when command type "sudo apt-get update" by terminal then ...
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1answer
23 views

cannot connect to websites by their domain name but ip addresses

I looked at the related questions but I still don't have an answer. My initial problem was transmission not connecting to any peer, I applied some suggestions, after half an hour I realized that I ...
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1answer
23 views

wireless interface gone after installing systemd 218

I Installed systemd-218 from the sources. After that I rebooted the system. Now I am unable to see any wireless interface. I tried reloading the ath9k driver. But no luck. The lsusb commands output is ...
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MAAS Network question - Node cannot ping to outside world (ip shows up correctly)

Hello AskUbuntu community, For the past few days, I finally jumped on the MAAS train but encountered a few problems with network configurations. I do apologize if I have missed some fundamental ...
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1answer
84 views

Ubuntu 13.10\14.04\14.10 wireless problem

I'm having problems with wireless in Ubuntu 13.10\14.04\14.10, sometimes when i start-up my laptop i can't find my WiFi and after i restart it works just fine but after sometime it drops the ...
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Establish reverse ssh tunnel at OS startup / network connection up [migrated]

I'm trying to setup a reverse SSH tunnel using a middle-man, due to firewall restrictions. I took the following steps: from ssh server do reverse tunnel: ssh -R 8080:localhost:22 ...
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1answer
36 views

Why is Linux better? [on hold]

What are your opinions as to why Linux is the boss. Also which distro do you prefer for personal use?
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19 views

Internet connection slowing down till stop

I've just installed Ubuntu 14.04 as second OS on my PC and I'm having a strange issue. When I try to connect to internet I notice a progressive slowing in the network speed till it completely stuck. ...
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2answers
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Cannot get my N300 (DWA-130) D-link wireless USB to work on Ubuntu 14.04

I'll start by saying i'm pretty new to linux, go easy on me ! I've downloaded Ndiswrapper and tried installing the windows XP/Vista driver... But iwconfig shows that there is no extensions.. I've ...
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1answer
20 views

Cisco VPN not working although it says connected

I am using Ubuntu 14.04 and I am trying to connect to my university network via VPN. I installed Cisco VPN and seems to be working normally. I connect to the network and it says connected, but when I ...
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2answers
45 views
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Can't connect to WiFi after suspend

After resuming from suspend, the Network Manager detects my WiFi signal, but eventually gives up when trying to connect to it. These fixes did not work: $ sudo restart network-manager $ sudo nmcli ...
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mount.nfs connection timed while connecting with utlp kit (as a client)

![enter image description here][1]scenario of my problem is as follows: I have created /naveen/shared direcrory inside the UTLP. I have created /home/mtlc/Desktop/rootfs inside the UBUNTU PC. ...
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39 views

how to rebuild a wifi driver

I have a hp laptop and the wireless chip-set is a rt5390. i know that a lot of people are having issues with the wireless connection but from what i have been reading when people have rebuilt the ...
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Wifi issuse, first time user

I finally built a PC of my own and I created a duel booting system. (Windows 8 and Ubuntu) Win 8 works flawlessly but Ububntu is the most infuriating thing I've ever dealt with. I can't access the ...
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1answer
33 views

Wifi problem with RTL8723ae on Ubuntu 14.04

I have the same notebook and problem as the person here: Wifi problem with Ubuntu 14.04 and RTL8723ae I have tried everything including the suggestions provided there (I installed the non-free ...
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28 views

Accidentally deleted everything associated with wifi connection (I think)

I Just returned from a long trip to remember that right before I left I really messed up my wifi connection. I deleted the applet, nothing pops up when I try to "add to panel" or look for wifi in ...
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Configure Wi-Fi Network Preferences in Ubuntu based on Signal Strength?

I use about 6 different wifi networks, depending on my location. At one location, we have two networks that are the same, but through a network range booster. Unfortunately, this poses the problem ...
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How do I can configure Firefox and Terminal via internet Ubuntu 14.04?

I've installed Ubuntu 14.04 and with I've broadband connection setup but it's only some application via internet , But I can't access Firefox and Terminal via internet see screenshot , when Firefox ...
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1answer
14 views

How to perform detail packet capture on Ubuntu firewall?

I've routed internet traffic of my other systems on this ubuntu linux system where I have configured packet forwarding. but still I am unable to get internet on other systems. Hence I want to ...
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Remote Desktop server that runs on single desktop

I want to be able to remotely connect to a friend's computer when he needs help and control his desktop. Chrome Remote Desktop is too slow because of the use of Google's servers instead of directly ...
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1answer
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What Type of Network Connection for IP for Nautlus

I am using LTS 14. I am trying to figure out how to Network a device. I don't know what kind of network it is for a location of: 10.10.10.254 with a username/password. Does anyone know what type it ...
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How do I configure proxy on Ubuntu 14.04?

I've installed Ubuntu 14.04, and with I've setup broadband connection, windows 7 allow all internet access, but Ubuntu 14.04 some application access via internet, I can't access Firefox browser and ...
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Ubuntu 14.04 - scanimage - invalid argument

It seems my Brother MFC-9120-CN is not detected whenever I want to scan an image. The printer works fine, however. The device is directly connected in my local network. ➜ ~ scanimage -L device ...
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66 views

ASUS X550C wifi

There is a lot of similar problems, but this one is a bit different. I have no phy0: Wireless LAN Ubuntu: 14.04.1 sudo rfkill list all 0: asus-wlan: Wireless LAN Soft blocked: no Hard ...
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No wifi after fresh 14.04 install

I've installed a fresh version of 14.04 over my last install. Now I'm unable to connect to any wifi network as there is no wifi network option available under networking.