Managing and using network connectivity on a Ubuntu system

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6
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2answers
9k views

Default gateway changing

I am using 3 ethernet interfaces on Ubuntu but when I restart, the default gateway is changing to a different interface. Each time I boot I have to change default gateway back to the eth1 by deleting ...
18
votes
2answers
17k views

Send messages between 2 Ubuntu PCs (Net Send Style)

I am trying to find a way to send a message (like a popup message) from 1 PC to another. both are using Ubuntu. Already tried the smbclient way but this only works between a linux PC to a windows PC. ...
0
votes
1answer
953 views

How do I auto-connect to a DSL-USB-modem?

I have Modem called TP-LINK TD-8817 USB The problem Who when I log to ubuntu the modem don't run but if I want to run it I should remove the wire of the modem and enter it again I have to do this ...
1
vote
1answer
633 views

Intel 3945ABG wireless not working at all

Link to original launchpad discussion Basically for a few weeks my wireless hasn't been working properly. I could see wireless networks, but not connect to them. Asked launchpad on how to help, and ...
1
vote
1answer
2k views

How do I use simpleproxy?

Can some one give me an example scenario where this package can be used? http://packages.ubuntu.com/dapper/simpleproxy
3
votes
3answers
1k views

How can I connect to the Internet using an ADSL modem?

I have a dualboot Ubuntu and Windows XP on my PC. Does Ubuntu require drivers for the onboard Ethernet card? If not, how can I make an Internet conection using an ADSL modem?
5
votes
2answers
62k views

How to configure eth0 manually?

How to manually configure eth0 in Ubuntu? I don't have any DHCP server. Do I need IP address when I am just going to capture packets?
2
votes
1answer
3k views

Network connection on an Acer Aspire 5253? [closed]

I bought an Acer Laptop 5253-BZ893 and i got Ubuntu 10.10 installed with no problem. The only problem i have is, that i get no network connection options, wired or wireless. I just get No ...
1
vote
0answers
450 views

Network control and monitoring with Netams [closed]

Has anyone ever used Netams for network, bandwidth management? When I search Google and Ubuntu sites, I can only find very basic installation and configuration information, and most are in Russian. I ...
5
votes
2answers
3k views

How to migrate network manager settings

I'm moving from an old ubuntu box to a new one. Is there a way to export the network manager settings from the old machine and import them in the new one?
8
votes
1answer
1k views

Internet Monitoring & Control tools

Does anybody know a software for monitoring internet usage and control bandwidth speed and quotas for each user/MAC in a centralized server for a small LAN network (less than 100 PCs).
1
vote
0answers
319 views

Connect to new wireless network [closed]

Wireless networking was working perfectly on my old adsl router. Then I moved to a new home that does not have adsl, and the router has been replaced with a new 3G one. I have worked through the ...
3
votes
3answers
1k views

How to connect a few PCs without Internet access?

I want to connect a few PCs in my company so that they can share files, chat, and transmit data. I have no Internet connection. I want to accomplish this without Internet but whenever needed I can ...
3
votes
3answers
2k views

How to connect Ethernet via a Huawei Smart AXMT880s modem (with auto-detection)?

It's been well over six months but I have the same router SmartAX MT880d with Ethernet, and the exact same problem : no internet, even though I can successfully reach the modem settings page by ...
4
votes
2answers
2k views

Trying Network Manager's replacement ConnMan

I'm aware that Network Manager is going to be replaced by ConnMan. How can I try it out? EDIT I installed indicator-network and it's dependencies, so how do use it? Oh, and I'm on 10.10's Unity. ...
1
vote
2answers
4k views

1000baseT/Full Supported and Advertised but not working! [closed]

i'm using a AT3IONT-I motherboard with integrated card. If I ethtool it to 1000 full duplex it wont work! Here is sudo ethtool eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half ...
2
votes
2answers
662 views

How to enable Nautilus mounted remote shares in a file system dialog

I can see the remote share from nautilus and browse to it. I want to access that share from another application in this case, Eclipse - which is using the standard open file dialog. Is there a ...
2
votes
2answers
7k views

How can I use smbclient to connect to Windows shares by hostname when a firewall is enabled?

I can't connect to file shares on Windows computers using smbclient -L //hostname when the firewall is enabled. This occurs whether I'm using ufw (which allows outgoing traffic and replies back in ...
2
votes
1answer
456 views

Intermittent ethernet connectivity

I am facing a weird problem. I am connecting to my dsl modem via ethernet. After booting, sometimes Ubuntu 10.10 does not detect the eth0 card properly or does not connect to the modem. I have made ...
4
votes
1answer
914 views

USB tethered connection via Nexus One not showing on NetworkManager

When plugging my Nexus One (Android 2.3.3) via USB and activating the "USB Tethering" option, I cannot enable the connection via Network Manager, because I just see a gray "Disconnected" option. If I ...
2
votes
3answers
1k views

Do any NetworkManager VPN plugins support IPv6?

Do any of the NetworkManager VPN plugins support IPv6? The two I've tried so far (PPTP and StrongSwan) only show an "IPv4" tab. I would have thought at least the IPsec one would support IPv6?
4
votes
4answers
1k views

Alternative to NetScanner

Is there a software alternative to NetScanner (which runs on the Windows platform)?
2
votes
2answers
7k views

Unable to use TL-WN821N wireless adapter

I got a TP-LINK USB wireless module - TL-WN821N, using Ubuntu 10.04 (same problems were also seen in 10.10). From everything I've read online, the usb adapter should work just fine, since the Atheros ...
4
votes
1answer
4k views

How to access shared drive connected to Airport Extreme router? [closed]

I have an external hard drive connected to my Airport Extreme. I keep my photo and music files on it and can access them from both a Mac and a Windows XP machine. For some reason I can't find, much ...
1
vote
1answer
692 views

What does a media server need?

I want to buy a new PC to be used as a media server that streams HD movies, music to any wireless device on my network (laptop, desktop, TV, etc.). I was wondering about the PC hardware's ...
40
votes
1answer
65k views

How do I setup an Icecast server for broadcasting audio in my network?

Broadcasting the output of the soundcard as an internet radio stream is a reliable way to stream audio in a network. This can nicely be used to e.g. transmit audio in a wireless LAN to another ...
2
votes
1answer
254 views

How do I simulate a network?

I want to simulate the following network with 2 laptops connected over internet. How can I do it? How can I set up the intefaces? [I'm using KVM if it matters]. Any help appreciated.
2
votes
1answer
2k views

In NetworkManager, my nm-dispatcher is never called

I've got two Ubuntu laptops (both 10.10). One is a new Maverick install and the other has been upgraded many times since 9.04. On the latter, setting up a custom script hook in ...
6
votes
2answers
2k views

Can I connect to multiple networks for double bandwidth?

If I used one wired connection to ISP_1 and another wireless connection to ISP_2, can Ubuntu benefit from both, such as running bit-torrent and getting twice the bandwidth?
2
votes
1answer
858 views

How do I get network working on a Dell n5010?

Hey. I just formatted a Dell n5010 and installed Ubuntu 10.10. Now,when i try to access the Internet it doesn't find the available networks. Informations about it: My network is set to broadcast ...
2
votes
2answers
2k views

Configuring ethernet network

I've got a wired network connection and if I'm using network manager (hereafter "NM") everything works fine except for the hardware address (it doesn't change). I'm thinking of using ...
1
vote
1answer
295 views

Remote connection problem

Hello I have ubuntu 10.04 installed with mysql on it and I have a problem with remote connection. When I connect through putty it works but sometimes it looks like it hangs for example when I ...
2
votes
1answer
130 views

Enabling DHCP without being connected

I was installing Ubuntu server the other night and I was not able to hook up to the network while installing because I don't have a monitor for my desktop machines. I had to go into the living room ...
5
votes
3answers
425 views

How do I set up a server for SSH?

At my workplace (a university) we have two Ubuntu servers. One is a teacher server and the other is a student server. I am currently setting up a new server to replace the existing teacher server. ...
6
votes
2answers
549 views

How to programatically sign into a hotspot-type network?

I often connect to a network, that is open, but requires a key-pass authentication before used in a webpage. Is it possible to automate the authentication with a script?
4
votes
4answers
7k views

The best way to hide my computer on a network

What is the best way on Ubuntu to hide my computer from network monitoring tools(network sniffer)?
2
votes
1answer
1k views

How to limit download/upload speed for specific users? [duplicate]

I want to setup an ubuntu server in which some users are limited to a specific download/upload speed.Is it possible? I know about Wondershaper, Trickle or similar tools but I don't want to limit ...
1
vote
2answers
867 views

Windows 7 and Ubuntu 10.10 network controller driver conflict?

Has anyone had problems with how Windows and Linux drivers configure the network card? I have a Realtek 8112L LAN Controller and am dual-booting Windows 7 and Ubuntu 10.10. After using network ...
1
vote
0answers
189 views

Suspending my laptop breaks ethernet over firewire, are there commands which can fix it? [closed]

As mentioned in this question I am using a firewire cable to provide a private network between my laptop and my desktop, because it makes using the screen sharing program synergy much nicer than using ...
2
votes
1answer
2k views

What is needed to see NAS drive?

If I use Windows XP the drive is seen in the network it is not seen in ubuntu's network. I do know and can use Connect to a Server but the question is really not about that. I would like to know if ...
5
votes
1answer
6k views

How to switch off wifi on startup or from the console

I have installed ubuntu 10.04 on a laptop. Wifi is switched on by default on startup. I can disable it rightclicking the network manager icon in the gnome bar. How can I set it to have wifi switched ...
1
vote
2answers
90 views

My network applet thingy has dissapeared

In System -> Preferences -> Startup Applications I have nm-applet --sm-disable Ticked. I don't know why its not showing up after boot.
5
votes
2answers
5k views

I3 WM with auto internet connectivity and a gnome panel

I wanna use I3 as WM with a gnome-panel on the bottom. But when i try to start the gnome-panel, I3 crashes. So how is it possible to run both? Another question is: How can i connect to the internet ...
6
votes
2answers
1k views

How to detect/monitor the hosts/urls being accessed?

Does anyone know about software that can detect or monitor host / url are being accessed by ubuntu? I want to see what host/url are beeing accessed by installed software or by my internet browser.
6
votes
2answers
6k views

How to restart WiFi interface without rebooting (it drops connection)?

I boot into ubuntu and it connects to the Wifi network fine. After about 10-15min the DNS stop resolving any website and a couple of minutes later network-managers tells me that I'm disconnected and ...
0
votes
1answer
63 views

What book should I read to learn how to deal with networking issues?

I run into wireless router and networking issues very often. I'd like to finally just read a book on how to trouble and diagnose problems, using tools like ifconfig, editing files like ...
3
votes
1answer
196 views

Wifi won't enter working net after hard reboot

I rebooted the hard way after my system jammed again because FF eats all the ram. (that's a different problem) I've always gotten away with it, but not this time. The system came up ok BUT it ...
17
votes
5answers
3k views

How can an application (like Firefox) be forced to use a certain network interface?

I've two interfaces: eth0 and wlan0 on a notebook. Possible use cases: eth0 grants me Internet access, and wlan0 is currently connected to a router which does not have Internet-connectivity. For ...
2
votes
1answer
413 views

WiFi does not turn on

I recently installed Ubuntu 10.10 along side of my HP pavilion dv6 windows 7. For what ever reason it states that there is no hard ware for the WiFi and it is disabled. The only way for it to work is ...
4
votes
2answers
2k views

How to set up an ethernet and wireless network using /etc/network/interfaces?

Currently I have ethernet and wireless networks configured through a network manager (further NM) but it seems to be a bit buggy (I need a different MAC for ether which is never applied if using NM), ...