Managing and using network connectivity on a Ubuntu system

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public IP and ifconfig ip are different: how to connect my computer to internet

I have set an home webserver with my application running. My machine runs ubuntu 14.04 LTS and i tested it to be working within the devices connected to that router. I also found the ip address that ...
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2answers
19 views

Network Split Screen

I've got a PC with the newest Ubuntu installed and 2 Laptops. Is it possible to split the screen of the PC over Network to the 2 Laptops (and the standard Monitor of the PC which I normally use)? ...
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0answers
8 views

Server locking up router

I have an Ubuntu server 14.04 with two kvm VM's running 12 and I am having issues with them locking up my router. I will loose all connectivity can't ssh or webmin into them and any external users ...
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0answers
26 views

Wifi not working: access denied [on hold]

I just installed Ubuntu and can't get my wireless working, Ethernet works. I'm having trouble downloading and installing the WiFi driver for my dell latitude d810. I keep getting the error access ...
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0answers
9 views

Netgear N150 Wireless USB 1Mbps limit

I'm a new Ubuntu user and I have installed Ubuntu 14.04. I'm having trouble using my wireless Netgear N150 Wireless Adapter. It conntects to my WiFi and on startup it seems fine for a few minutes, but ...
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4 views

Is it possible to change RWIN (TCP Receive Window) settings in Ubuntu 12.04 or newer? [on hold]

Is it possible to change RWIN settings in Ubuntu 12.04 or newer? Cant figure it out. Thanks!
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0answers
25 views

Unable to connect to wireless network on my sony F15218 laptop with ubuntu 12.04 lts 64 bit

I have been trying since yesterday to get wifi working on my laptop. it was working fine till yesterday but has stopped working now. Actually the problem is it's not able to find my home wifi. It ...
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8 views

Samsung ML2165W printer won't print wireless

How can I get the above mentioned printer to print wireless in Ubuntu 14.04? It prints only when the USB cable is connected to the laptop. I would appreciate assistance.
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0answers
14 views

how to install huawei E1732 data card [on hold]

I don't know how to install my data card which is 'huawei E1732'. it is working yet it has some issues as well.
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1answer
27 views

How to use Ubuntu Terminal to backup data over a shared netowrk drive

Firstly, I must confess and say that I'm very green in Linux so kindly forgive me for my newbie question. Secondly, forgive me again for the long post - I just had to be sure I got everything down. ...
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1answer
17 views

Synergy setup problem

I have one desktop and one laptop at home and want to combine them using synergy. I followed the instructions https://help.ubuntu.com/community/SynergyHowto but failed to merge screens. The log says ...
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1answer
19 views

not able to get 2G(EDGE) network in ubuntu 14.04LTS

i am using huawei E1732 data card. its working well if 3G service of an operator is available. but if i change the operator whose 3G network is not avalable then the modem is not working and i am not ...
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1answer
32 views

How to install a Cisco valet connector without internet?

I installed Ubuntu to try it out. My computer doesn’t have internal internet card. So I would like to use Cisco valet connector. My question is how do I install it ? I can't open an exe file, I ...
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0answers
8 views

Network icon providing connection feedback

I've noticed at least two network icon animations during a typical start up sequence. The first animation appears to be the animation of a single, highlighted band on the icon's four parts moving ...
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0answers
23 views

Internet not working, network card may be disabled

Hey so I have been using Linux for a few weeks now for school. I am at this part where I have to ping websites and paste screen shots of my terminal use. I have been struggling for the past couple ...
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0answers
18 views

Installing DWM-157 on Ubuntu 14.04

I am trying to install my new D-Link USB Modem on Ubuntu 14.04. I followed these instructions. Except that there was no .tar.gz files. So I installed the .deb files, which instead. It seems like ...
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1answer
15 views

unable to search 2G(EDGE) network

i am using huawei e1732 data card. in windows every thing is fine. now i am using ubuntu 14.04 LTS. And i am not able to use any 2G network. please help me to solve this issue.
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0answers
11 views

not able to conetct wih any 2G(EDGE) network [on hold]

any 2G(EDGE) network is not connect. only 3G networks are working. please help me to solve this issue in ubuntu 14.04 LTS.
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1answer
9 views

samba share from ubuntu vm fails with 'force user'

I'm a bit of a noob with ubuntu, please be patient ;) I have two ubuntu VM's (server running in VirtualBox, as development machines). The older box (ubuntu 12.04 LTS) is running samba just fine and ...
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0answers
10 views

Can I route Spotify (or other application) through my connection while connected to VPN?

I am connected to a client's VPN in order to test an application I am working on. It has a fairly slow upload speed about ~4Mbps. I have a 75Mbps down and would like to use Spotify with my local LAN ...
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0answers
44 views

Network Manager in Xubuntu stopped connecting

Xubuntu Trusty on a new machine. It used to connect to both WiFi and Ethernet at first but now (and I think after updating software a few days ago) it connects to neither. Restarting the computer ...
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1answer
40 views

Ubuntu server 14.04 can't update internet problem

I recently installed a fresh copy of Ubuntu server 14.04. The install was fine. But after the install the problems begin. To be sure I have al the recent updates I typed sudo apt-get update. The ...
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35 views

Networking doesn't work after update

I recently installed updates to my ubuntu 12.04 installation notified to me via the updates manager. On completion, when I did a restart, no networking, wireless or cable, was working. Networking ...
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0answers
24 views

Network Manager Icon Isn't In the Unity Panel

I accidentally purged network-manager. Hopefully, I downloaded the debs required by network-manager and installed them. Now, the network-manager indicator is not in the Unity panel. Is there a fix? ...
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0answers
24 views

restrict access to Internet in guest session in 14.04 LTS

Ciao! I am using ubuntu 14:04 LTS and would like to restrict access to the Internet in guest session at particular times, for example, in use from 10 am to 12 pm and from 5 pm to 7 pm. For all the ...
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0answers
9 views

Unable to install USB Modem

I have an E-Spectrum GSM HSPA modem with a vodafone connection. And I am a new user of Ubuntu. How can I install USB 3G Modem Stick on my Ubuntu 14.04 LTS?????
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1answer
18 views

Help Getting Two NICs On Same Machine Talking Via Switch

I have a virtual Ubuntu Server (14.04) VM on Hyper-V host with three NICs - eth0 is bridged to the external network - eth1 & eth2 are attached to a private virtual switch The aim is to get the ...
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0answers
8 views

Hp pavilion dm4 wimax soft blocked [duplicate]

My hp pavilion dm4 originally had window7 on it then i switched to ubuntu 14.04 and now it can not connect to the internet. The wimax is soft blocked. How do I get it unblocked?
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9 views

WiMAX Soft Blocked help

I have an HP pavillion DM4 and the WiMAX is soft blocked. How do I unblock it so that I can connect to wifi? I have already tried the command rfkill unblock all and it did not work. I can connect with ...
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0answers
8 views

Live usb won't connect to a network created by other ubuntu laptop

I have a laptop running 12.04 and I created a network using the wifi-direct feature. I can connect other laptops to it, cellphones, toasters, washermachines, just about everything. Except a another ...
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9 views

Wired connection disabled after setting static ip

After I configured the static IP Address, I did something that prevents the network from starting. Run sudo lshw -C network -sanitize: *-network DISABLED description: Ethernet Interface Run ...
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1answer
12 views

Connect to PEAP connection with inner authentification MSCHAPv2 using only terminal

Anyone has an idea how can i do this on Ubuntu 14.04 with no GUI installed? The connection uses simple user<->password authentication with no certificate.
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10 views

Ubuntu 14.04 Desktop not automatically renewing DHCP lease

Sometimes my laptops networking just stops. I fix it by doing sudo ifdown em1 sudo ifup em1 The strange thing is, in previous releases and other *nix distros that usually doesnt produce an prompt ...
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0answers
8 views

Setting up a transparent proxy with ubuntu server

Basically I have configured the server to take the internet on eth0 and pass it through squid out on eth1, I think haha. I have also configured the DHCP server which is working fine, it's distributing ...
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1answer
61 views

Wireless connection drops on Intel Centrino 6235

I am in a wifi network at school which has secure access and I have been using it for months now, but the problem started a few days ago. Every 3-5 minutes I lose internet access, but retain the ...
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0answers
24 views

Accessing CUPS web interface administration with a non-root user [on hold]

So firstly, I'm not an expert in servers. I'm using Ubuntu Server 13.10 and I want to make this file server a print server as well. So I'm trying to get CUPS working however I've encountered some ...
1
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1answer
25 views

BitTorrent programs killing networking - Broadcom wireless

This started happening after I did a fresh install of 14.04 (previously I was on 13.04). When ever I launch a BitTorrent client my DNS very quickly stops responding, and then the network connection ...
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0answers
21 views

Monitor TCP port in background as daemon

A little background: I'm in charge of a fairly old (10.04) web server that hosts lots of outdated, under-maintained sites running on out-of-date versions of platforms like WordPress, Drupal, and ...
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0answers
10 views

migration/0, migration/1 high CPU usage after executing sudo service network-manager restart

I am using Ubuntu 14.04 LTS. I am having some problems with my wifi, as it gets disconnected with Wifi Hotspot automatically and won't connect until I restart my computer. I am using wifi driver ...
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0answers
11 views

modem appears as wired connection!

I can't connect to the internet as the modem can't be detected. It all started when I installed huawei mobile partner, then network manager started to recognize my modem not as broadband but as wired ...
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0answers
19 views

Ubuntu not connecting to Airport Express

After some extensive troubleshooting I have found that my Lenovo IdeaPad with Ubuntu 14.04 LTS does not work with the Apple Airport Express. It connects fine on my other router (which is not Apple) ...
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1answer
15 views

Asus x550: unstable wireless connection

I've been getting weak signal to my asus x550 laptop running Ubuntu 14.04. As suggested by someone in Askubuntu.. I've got a good signal but wifi keeps disconnecting automatically for every 5minutes ...
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1answer
35 views

UBUNTU 14.04LTS Wi-Fi hotspot is not detected by android phone

Default creation of HotSpot in network manager is not able to detected on andriod phones of any version. There is a answer for this question in given link below but its need to install third party ...
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0answers
11 views

Wired connection and ad-hoc wireless at the same time

I'm setting up an Ubuntu Server 14.04 with a wired connection (p4p1) and creating an ad-hoc wireless network. Here's my interfaces file: # The loopback network interface auto lo iface lo inet ...
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0answers
13 views

TP-Link TL-WDN3200 driver issue

I am using TP-Link TL-WDN3200 wireless adapters in my linux ad-hoc network. Two nodes could ping each other via the WDN3200. But after a few hours idle running, one of the adapters went wrong. I got ...
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0answers
14 views

Can not ping local site

I have the following situation: On one server in our network we have the DNS Server. Here we define hostnames for some local sites (ex: 192.160.1.6:8060 -> fisheye.idn.local). When accesing the site ...
0
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1answer
16 views

add multicast ip address into kernel route table

i want to add an IP (multicast 228.0.0.4) in the range of 224.0.0.0 – 239.255.255.255 in the kernel routes table, so i used sudo route -nv add -net 228.0.0.4 -interface eth0 but it gives me: ...
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1answer
41 views

Wifi Adapter can see AP, but cannot connect

My wifi card is: Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) My problem is that when I attempt to connect to a wifi network it refuses the ...
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0answers
25 views

known issue with Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) [on hold]

just got an assembled pc with a built in ethernet adapter Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) is this ethernet lan card known to have ...
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0answers
25 views

Driver r8169 of Realtek

Somebody knows what happened with driver r8169 of Realtek? Internet connection works well in Windows Vista Ultimate. However on Ubuntu 14.04, it did not work. It does not recognize wired connection. ...