Managing and using network connectivity on a Ubuntu system

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2answers
941 views

How to get VPN internal traffic and external internet traffic to work simultaneously

I'm connecting to a Cisco compatible VPN, in Xubuntu 14.04. I can connect and access IPs and servers on the network. However, I cannot access external websites. When I change the settings this ...
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3answers
3k views

Adding Canon Pixma MX860 to Ubuntu 14.04

I have a Canon Pixma MX680 all-in-one hard-wired to my LAN. Trying to add a printer using Settings | Printer | Add Printer | Network Printer gave me a whole bunch of choices--Find Network Printer, ...
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2answers
869 views

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 ...
0
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2answers
174 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)? ...
3
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2answers
2k views

Connection dropouts with RealTek RTL8188CE

I'm an Ubuntu rookie with an unresolved wireless internet connection issue. I've spent a lot of time fiddling around in my never-ending quest to get my connection working properly, but my inexperience ...
1
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1answer
200 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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1answer
596 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
870 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
150 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
495 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
49 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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1answer
64 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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1answer
5k 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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2answers
1k 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 ...
2
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0answers
153 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
447 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 ...
0
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1answer
194 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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1answer
285 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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0answers
468 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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2answers
418 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 ...
1
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1answer
263 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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2answers
534 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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4answers
14k 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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2answers
564 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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1answer
3k 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: ...
0
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1answer
210 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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1answer
290 views

Can not “see” work pc's when connected on VPN from my home

I have created a VPN connection (my router at my work office allowed could do this) from my home pc to my work office. When I connect to my work VPN all seems great as my IP address changes to the ...
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0answers
103 views

How to set MTU for autoconfigured interfaces

I have a computer that may have multiple network devices, which are only in some cases available. Currently all network devices are configured completely automatically. Now I need to set the MTU for ...
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0answers
91 views

Getting disconnections on wifi [duplicate]

I'm running 14.04LTS and this is the first time using a wireless card on my computer. In my previous residence, I was able to have my computer connected via ethernet. However now that I have moved, ...
0
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1answer
490 views

How to set DNS exclusively for a Network Namespace

I've created a network namespace. I thought there was a resolv.conf file for each namespaces created but it's not the case on my system (Ubuntu 14.04). I don't have the following path /etc/netns/...
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2answers
1k views

find mac address of all connected systems [duplicate]

How can I find out how many system are connected to the local network and how can I get all IP and mac address of these systems. Is their any command/package to show the IP details? Can I use this ...
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2answers
57 views

how i can poweroff all the computers in lan from single computer

I have 5 desktops, all running Ubuntu 14.04 64 bit. All are connecting to the Internet through the LAN (using a dlink switch), i want to shutdown all the computers from a single computer,is it ...
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2answers
87 views

windows mapped folder access

I have successfully mapped a a shared folder in windows to Ubuntu. But I can't save anything in the folder from Ubuntu. I can browse and open and all but I can't save anything to the folder or create ...
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1answer
2k views

How to connect with a Qualcomm/Huawei 3g modem

I have a 3g modem which lsusb reports as a Huawei Technologies Co., Ltd. E169/E620/E800 modem. However Windows' Network Connections panel shows it as a Qualcomm USB Modem 6000. So when I try to ...
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1answer
690 views

What is difference between arping and arp?

Guys am having a mysterious doubt in diff. b/w arping and arp. When my senior asked me i was speechless. Pls. help me am confused.
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votes
5answers
4k views

vnstat not updating

I installed vnstat on my Ubuntu 14.04 server to track my internet usage (I have a limited monthly transfer). The database never updates, however. I've tried uninstalling/reinstalling, but that doesn't ...
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0answers
676 views

print spooler service in ubuntu

I want to share a printer under Ubuntu 11.04 with Windows 7. I have installed samba and configured it to allow the printer to be browsed across the network. I have also enabled printer sharing. But ...
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0answers
340 views

how to set mmap for better performance of raw socket

req.tp_block_size=96; req.tp_frame_size=96; req.tp_block_nr=2; req.tp_frame_nr=2; if ( (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (char *)&req, sizeof(req))) != 0 ) { perror("setsockopt()"); ...
3
votes
1answer
3k views

Network indicator missing in ubuntu 14.04 64 bit

Network indicator is been missing from top right corner panel in Ubuntu 14.04 64 bit When I run #sudo nm-applet nm-applet-Message: using fallback from indicator to GtkStatusIcon. Already have tried ...
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1answer
97 views

Typing localhost is redirecting to another host in ubuntu

When I am typing localhost in my browser it is automatically redirecting to another site for eg google.com. Can someone please tell me how this is happening and can I change this behaviour?
2
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0answers
65 views

Getting Ubuntu server to resolv new IP for a host name

I run a minecraft server on ubuntu 14.04 LTS on vm's using virtual box. In order for players to connect, their 'account' must be checked with Mojang, at sessionserver.mojang.com. The problem is, the ...
1
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1answer
940 views

Ubuntu 12.04 - no internet after wakeup, wifi/lan connected, but reaching only local network

I have a strange problem on Toshiba Satellite NB and Ubuntu 12.04 on it. This system is working flawlessly a couple of months now already, but since last week I am getting a strange problem. I put ...
2
votes
1answer
4k views

Apache - server not resolving by /etc/hosts if I have not internet connection

I have configured many virtualhosts in my current apache2 server, in my local machine (Ubuntu 13.10). Those are different local sites, with domains which are set in my /etc/hosts: 127.0.0.1 ...
0
votes
1answer
1k views

Routing internet traffic through vpn only when connected

I set up a pptp vpn server and can connect to it with my laptop without any problems. However, connecting to the vpn causes issue with routing (i.e. I am not about to connect to the outside web). To ...
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3answers
761 views

Setting up wireless hotspot to be on at boot

TL;DR: Can I set Ubuntu up to - from boot - have the wireless hotspot turned on? My mother-in-law lives so far from civilization that she can only reach the Internet through a 3G dongle, which works ...
1
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1answer
634 views

My wireless dosenot work on rtl8723ae

I have Ubuntu 14.04 first time wireless work great after i update Ubuntu wireless did not work OS Release Distributor ID: Ubuntu Description: Ubuntu 14.04 LTS Release: 14.04 Codename: ...
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2answers
1k views

Virus infection in Ubuntu 14.04

I am using Ubuntu 14.04.My computer is infected by viruses or malicious software installed without my knowledge during web surfing. I am saying this because whenever I search anything in Google search ...
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2answers
323 views

Lubuntu 12.04, Sony Vaio VGN-T150, Intel PRO/set wireless (2200) wireless doesn't work

Just installed Lubuntu 12.04 on my Sony Vaio VGN-T150 after installing Win XP again; I had Lubuntu 12.04 on the laptop but wasn't getting any CPU fan operation. Tried adding vaiofand but still seemed ...
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3answers
380 views

While Installing the “Universe” Source I get the following error “Failed to download repository information”

this is my first time posting on AskUbuntu so forgive me if I make any mistakes in my post. About an hour ago I installed Ubuntu 14.04 64-bit, I went to the Ubuntu Software Center to install my ...
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3answers
12k views

Can't connect to one wifi network, keeps asking for password

Here's the relevant syslog stuff: http://pastie.org/9405812 Here's the output from the wireless-info script: http://paste.ubuntu.com/7821949/ My wifi works well in general, I only have problems with ...