Managing and using network connectivity on a Ubuntu system

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Samba Shares Ubuntu 12.04 and Win 7 Home Network

I have managed to create a home network of sorts between my desktop with windows 7 and my laptop running Precise Pangolin using probably more than a dozen different tutorials I have read here and ...
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0answers
80 views

Getting started [closed]

I have set up a VM with Ubuntu Server and I seem to have access to other machines on the local network but I don't seem to have access to "outside" networks. I determine this with ping (for example ...
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1answer
351 views

Ip Tunneling Driver

I am trying to use a AppGate client on my Ubuntu 12.04. some AppGate client services need IP Tunneling driver to be installed and running on the system in order to work. I have downloaded IP ...
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1answer
3k views

Ubuntu 12.04 http connection refused

Today all of our Ubuntu 12.04 installations have developed a wierd bug. Whenever you try to access the internet either in a browser (Chrome & Firefox tested), apt-get/Software Centre or wget/curl ...
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2answers
3k views

12.04 on VirtualBox -No internet access on Guest OS

I have Windows 7 as my Host OS which has wired Ethernet working. My guest OS on VirtualBox is Ubuntu 12.04. The problem is that I cannot browse. I have: Enabled sharing on Windows; Have used NAT, ...
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1answer
326 views

Pluscom MAC address shows up but “wireless unavailable”

I've got a pluscom pci card plugged into my desktop and although the mac address shows up in network manager, it says "Wireless unavailable". I'm using Ubuntu 12.10 Gnome Shell Remix... ...
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2answers
6k views

Need to restart network interfaces and kill wpa_supplicant, how to fix?

My workplace uses 802.11x authentication for their WiFi network, and several times per day I get booted from the network and need to do the following: Disable networking sudo kill -9 Restart ...
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1answer
635 views

Highly available iSCSI target

I'm in the process of setting up iSCSI target on DRBD following the steps detailed here. I would appreciate if someone can answer and explain the following queries: Is there a way to set up just 1 ...
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19 views

Is it possible to view per-process statistics on traffic usage? [duplicate]

Possible Duplicate: Specific traffic analysis In bmon and vnstat I can see whole amount of received and sent traffic. But I can't see its origins (processes that sent those requests). ...
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1answer
1k views

Trouble setting up wvdial

I'm using nokia x2-00 as modem and idea as service provider.my wvdial settings are as follows: [Dialer Defaults] Init1 = ATZ Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 Init3 = ...
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2answers
614 views

Lan is Working . But Wifi isn't connecting

I am using Ubuntu 12.04 LTS. When I am connecting Lan cable, internet is working fine, but when I disconnect Lan and switch on wifi ,Internet isn't working. Is there any additional drivers to be ...
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1answer
2k views

How to use zeroconf in Kubuntu 12.04

I have two laptops sitting next to each other, both running Kubuntu 12.04, and my goal here is to share files between them using Zeroconf networking. Here's what the wiki says about how to configure ...
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1answer
745 views

network simulator 3 (NS3) problem on ubuntu 12.10

I am trying to install Support for MPI-based distributed emulation (sudo apt-get install openmpi*) but I can't. terminal says: error@ubuntu:~$ sudo apt-get install openmpi* Reading package lists... ...
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2answers
972 views

Connected to wireless network but no internet

I'm connected to my wireless network but am unable to connect to the internet. It appears I do not have an IP address and I'm not sure what to do. I had working internet until I booted up this ...
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3answers
5k views

Ubuntu 12.04 Network Manager: unable to save manual setting to set up a static ip

I am fairly familiar with setting up servers, and ubuntu is generally my flavor of choice, but I just installed 12.04 desktop and I am seeing some behavior in network manager that is really puzzling. ...
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1answer
342 views

IPv6 tunnels - any easy way to turn them on and off?

I've set up a tunnelbroker.net (Hurricane Electric) IPv6 tunnel from my laptop running 12.04. Works fine, and allows me to test the dual-stack configuration on my remote webservers etc. until native ...
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2answers
9k views

mount remotely mybook live network drive

I have a mybook live western digital 1TB hard disk connected to fritzbox 7270 router in office. When I am in the office, I can mount this drive to ubuntu since I have added to the etc/fstab file: ...
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1answer
800 views

WPA2 enterprise authenticate fail

I installed lubuntu 12.10 on Dell Idea-pad 10-2. This model has Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) as wireless module. I tried to use driver from both ...
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2answers
24k views

Ethernet card not detected on Ubuntu Server 12.04

My onboard ethernet isn't detected after a re-install of Server 12.04. For reasons I won't get into here, I had to put the server's drive into another machine to install Ubuntu, then swap back into ...
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2answers
7k views

command for enabling networking?

What is the command for enabling networking and wireless using commandline? I have made a script that delays the startup apps for quicker boot times. I have learned that disabling networking also ...
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1answer
835 views

CUPS: Restrict printer access to trusted users on network

I would like to share my printer (connected to my computer with USB) with my colleague though our network. I am very concerned with security issues and I don't want to do anything that could ...
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1answer
197 views

network doesn't start on boot

I installed Ubuntu server on a machine, and there is this thing which is annoying me: everytime I boot the machine, I have to sudo ifup p1p4 to start the network... What should I do to make this ...
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1answer
759 views

Ubuntu 12.10 and Windows 7 Network: Network password doesn't work

Look: http://youtu.be/W3J_C4wCt7k When I try to access my Windows 7 pc, it ask for a password, I typed in the same password of the "Home Group" in Windows, but it doesn't work... How do I fix this? ...
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1answer
221 views

Which LAN card / module combinations proven to work with Wake on LAN

I've got a 12.04 headless server that I've been trying to get to work with wake-on-lan. The card is Marvel 88E8053 using the sky2 module. Although WOL is enabled in BIOS and ethtool shows the card as ...
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1answer
673 views

How can I obtain an IPv4LL address when dhcp server is down?

I edited the /etc/network/interfaces with the lines auto eth0 iface eth0 inet dhcp but, if the dhcp server is down, I want the interface obtains automatically a link-local address. Is it possible? ...
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1answer
7k views

How do I add my Ubuntu computer to my Windows 7 network? [duplicate]

I installed Ubuntu 12.10 on a computer and accessed the wireless network on which I have primary and secondary computers running on Windows 7. I can see both computer icons on all computers except I ...
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1answer
3k views

Install batman-adv under Ubuntu to start a mesh network

I want to install batman-adv to join a mesh network but I don't find it in the repository apt-cache search batman-adv Is it possible to install it in Ubuntu?
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2answers
4k views

How to set up a PPTP Server on Ubuntu?

I really like to make PPTP VPN connection base on Ubuntu, (non-encrypted) but I do not know how to do this. I think I have to install ppp first but after that my main problem is on configurations.
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3answers
83k views

Command to get the hostname of remote server using IP address

I want to get the hostname of a remote server using the IP address using my Ubuntu. In Windows we can get using NBTSTAT but this doesn't work in Linux. Does anyone know how to do that?
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1answer
164 views

How can I share a wifi signal with other machines on my wired network? [duplicate]

I want to take in a WIFI signal and provide internet service to this Ubuntu machine AND others on my hardwired ethernet connection. I have asked this elsewhere and only got 'it's easy, use the GUI' ...
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5answers
25k views

What is the active MAC Address of my computer?

While looking to find the MAC Address of my computer as it appears to a wireless network, it was recommended that I run ifconfig. Having executed that command in the Terminal, I noticed that, unlike ...
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6answers
5k views

How to control an Ubuntu PC from another Ubuntu PC over Internet, using mobile broadband connections?

There are two Ubuntu PCs called A and B. A and B are connected to the Internet using two separated Internet connections. (In my case, two mobile broadband connections ppp0 x2 ) Each connection has a ...
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3answers
7k views

No Internet after upgrading to 12.10

I upgraded to Quantic yesterday; it runs on a Macbook Pro. After using boot-repair to be able to boot to Ubuntu (via live CD), I found myself without any connection to Internet, be it with ethernet or ...
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3answers
4k views

Timeout in a connection to a DHCP server

I want to configure my eth0 interface using an external DHCP server (resident in my subnet), so I edited /etc/network/configure with the lines auto eth0 iface eth0 inet dhcp but I also want to ...
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3answers
6k views

DNS resolution fails after 12.10 upgrade

After my upgrade to 12.10, DNS resolution seems to fail for both local and external addresses. I can successfully ping local and external IP addresses (google.com, at least), but pinging DNS names ...
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4answers
3k views

How do I Get WiFi working on my Dell Inspiron 1501 with BCM4311 [14e4:4311]?

My wireless doesn't work with Ubuntu 12.04.(it worked with 10.04 LTS) I have a Dell Inspiron 1501. I followed the steps posted below: Run these: sudo apt-get install --reinstall bcmwl-kernel-source ...
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1answer
923 views

Ethernet not working 10.04

I am facing a strange issue. Yesterday, I powered off my Ubuntu 10.04 LTS server by mistake. Since then networking is not working. The interface which was in use was configured as eth1 but now it ...
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2answers
4k views

Wired internet not working with an Intel 82579LM NIC [closed]

I have been searching all day to no avail. I have just installed ubuntu 12.04 as dual boot on a dell optiplex 990, which has a Intel 82579LM NIC. I have it wired up via ethernet to my college network, ...
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2answers
4k views

Samba folder is gone

I seem to have some issues sharing folders from my Ubuntu 12.04 machine to a Win7 machine. After playing around with the settings, I decided to revert to Samba's original setting by reinstalling it: ...
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1answer
14k views

How to map network scanner

I have just bought a shiny new Canon MG6250 multifunction printer/scanner and connected it via LAN. Installing the printing side of things was a breeze, however, I cannot work out how to set up ...
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5answers
49k views

How to mount a network drive?

I'm trying to set-up a home file server. I'm thinking about just setting it up as an FTP server, no particular reason other than I'm familiar with FTP and samba tends to be very frustrating. ...
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1answer
8k views

dhcp3-server or isc-dhcp-server

So. I need a dhcp server on my ubuntu server. I've found two options, and some saying it's the same thing? Could someone explain the difference, maybe even pros and cons? If it's not the same.
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2answers
907 views

Network connection between two laptops communication problem?

I have two laptops (both wifi enabled) and a wireless router. I want to use one of the laptop on a robot and other laptop to SSH into the first one. Is it possible to connect the two PCs even if I ...
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1answer
287 views

How to Trace my Network's Steps

Question (concise version): Where in my log files would I find information regarding the networking steps executed between the time I have left the login screen and the time I have landed comfortably ...
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2answers
3k views

Wireless not connecting automatically

My wireless is working fine, but when I login, it does not connect automatically, I have to select it from the list each and every time to use it. Even though the connect automatically option is ...
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0answers
99 views

Server is not visible from internet

I've set up a server running 12.04 server edition which is connected to internet via LTE modem and shared to the internet as a WiFi hotspot. I've also installed no-ip on a server and gave it a host. ...
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2answers
664 views

Is there a tool like omnipeek? Which tool can be used to capture wlan packets?

I want to find a tool like omnipeek on my ubuntu precise, but didn't find. Which tools can be used to capture WLAN packets on Linux?
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3answers
8k views

Issue with setting up multiple IP addresses on ubuntu server installation

I want to setup two ip addresses on my system for access through lan. This is my config on my other system. Desktop Installation My desktop installation runs with multiple IP's added through ...
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116 views

retrieving route flags programmatically? [closed]

Is there a way to obtain flags of the routing table through any API? Netlink socket doesn't show any place for flags. After checking route command's source code in net-tools it seems that it reads ...
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2answers
10k views

Ubuntu 12.04 wireless does not detect networks

I installed Ubuntu on a partition of my MacBook Pro. Wireless connections work fine when I switch to OSX, but the wireless networks are not even detected when I boot Ubuntu. I installed Wicd as a new ...