Managing and using network connectivity on a Ubuntu system

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1answer
2k views

How can I host a website in a virtual machine?

Before you shoot this down, please let me explain what I mean.... I am running Windows, I also have a virtual machine installed that is running Ubuntu. I want to set up a website on Ubuntu (the ...
2
votes
1answer
434 views

How to make one program use a specific network card?

At work they have disabled the use of P2P networks such as bittorrent. (Causes too many open connections according to the admins.) Is there a way to let all programs, except Transmission use eth0 and ...
4
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2answers
2k views

I cannot create ad-hoc wireless networks and stay connected. How can I fix this?

I'm on 11.10, and no wireless networks I create are staying connected. I had created one called "cookie" many moons ago, then deleted it some time after upgrading to 11.10. Strangely, that network ...
4
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2answers
442 views

How to tunnel traffic from one machine to another?

I have a server, which can be seen from outside of my small network, sever has domain name and such. And I have a local machine, which can be seen by server, but is not accessible from outside. So I ...
1
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1answer
796 views

How do I deploy Firefox Bookmarks for all Users in Network?

I have a bash-script for installing Firefox which is downloaded and executed from every client workstation in the network. The script is on the server and all workstations are running Ubuntu. Now I ...
0
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2answers
2k views

Wireless setting -WPA2 Enterprise

I'm setting my wireless environment. I have to use WPA2 Enterprise with PEAP and have to use AES encryption. But I can't find where encryption config is. (MS-Windows has the option) How can I config ...
5
votes
2answers
12k views

How do I bridge network interfaces?

I have a laptop running 11.10 with 2 network interfaces, wired and wireless. Wireless interface connects to the router with DHCP and connects to the internet. Wired interface is connected to a ...
28
votes
7answers
34k views

chat over lan from linux to linux?

As I recall there was something like netsend on windows that allowed simple messages to be sent over the local network. I especially like this because one doesn't need to install extra client soft ...
2
votes
1answer
438 views

Cannot find any wireless networks - Networking service failing

My netbook is running Ubuntu 10.04.03 LTS (lucid) and everything was working perfectly till yesterday. It was connected to the Internet through my Thompson router and when I woke up, my WI-FI was ...
0
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1answer
779 views

Configuring a persistent static IP address [duplicate]

Possible Duplicate: How do you configure desktop for a static IP address? I'm trying to be able to access my localhost from any computer on the network. I'm currently doing that by using ...
13
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4answers
417 views

How to know what other systems are trying to get into Ubuntu?

I am currently using Ubuntu Desktop 11.04 and enabled the firewall using GUFW. I have also disabled all the unnecessary services. I am connected to the internet and would like to know details of any ...
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4answers
2k views

A Single wireless network is not showing up in Ubuntu that used too, and other devices have no issue finding or connecting to it

Up until about a week ago I could connect to my wireless, but now I suddenly can't. Every other wireless in the area show up in the network manager. My kindle can connect to it, my friend can connect ...
2
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2answers
182 views

Why does the computer only connect to the network (e.g. eth0) when you log in?

Not sure if this has always been the case, but I notice that only when I log in, does the computer establish a network connection (e.g. on eth0). Is this the standard behaviour? What if I wanted the ...
1
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1answer
506 views

How do I access my NAS from an application?

I need to access my files on my NAS. Specifically how do I access my NAS from Sheetmaker - I need to access the movies' folders through the home network ? That's not a problem for Thumbgen in ...
1
vote
1answer
2k views

Ubuntu can't configure proper gateway at boot

My Ubuntu machine is connected to internet via wifi, and also connected to LAN by ethernet cable. Every time I log on, I have to run these 2 commands in order to set the proper gateway (wlan0 in my ...
22
votes
4answers
29k views

How to share a wired internet connection via Wifi?

Can someone please help me with a complete step by step guide to share my internet connection (which is through a USB modem by ZTE) with my iphone 3G?
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2answers
741 views

How to switch between network interfaces from console?

I've installed Debian in my VirtualBox (my host OS is Ubuntu). And there I configured two network interfaces: eth0 as NAT, and eth1 as Bridge. NAT I need to have access to the internet in virtual OS, ...
5
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1answer
641 views

How to have a OpenLDAP Multi master replication setup?

This is the setup I would like to have. LDAP clients | ________________|________________ / \ ...
3
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1answer
2k views

UDP tuning ubuntu - how to?

I'm having some lags with my server running Ubuntu 10.04 on my UDP packets. What should I do to change the settings set for the UDP packets? I think the problem is there. On my ...
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1answer
7k views

What network mapping tools are available?

What network mapping tools are available?
0
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1answer
49 views

Does Ubuntu allow me to get a synced login screen on boot that can be used by multiple computers?

I might be setting up Ubuntu for a small school, but this school has an existing Windows network that allows students to log in before actually entering the desktop. Each student has a small folder ...
3
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0answers
8k views

Avahi error on startup [duplicate]

Each time I start up, I get a blue popup-like blue window with an exclamation mark giving me what looks like an error message. It does not stay long enough for me to write it down. It says something ...
1
vote
1answer
4k views

How to install and setup SmokePing?

Any have good link to how to for SmokePing that is upto date for 10.10 or 10.04(aka mint11)?
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1answer
662 views

Why can't I open files and locations across a home network?

I have figured out how to get my two Ubuntu 11.04 machines to see each other, and I can look through shared files but when I go to open say a song in a shared music file I get an error message saying ...
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1answer
117 views

Moved HDD to another server and networking wont work

Had to move hard disks from one server to another. System boots fine and I can access the command line of the server from the console. However the networking seems broken. the ...
3
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0answers
3k views

Internet connection in Oneiric [closed]

Main Problem I am unable to connect to the internet from Ubuntu 11.10. Additional Info I am trying to connect using a 3G USB modem via a mobile broadband connection. Country: South Africa ...
2
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1answer
566 views

Cannot connect to network with laptop

I can't connect to network via an ethernet cable, but the wireless connection works fine. This only happens on this laptop - the pc network cable connection is fine. ifconfig eth0 Link ...
2
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1answer
484 views

Set wireless automatically to connect my network

How I can make automatically wireless connect to my network, because first of all it always tries another one and only after this it connect to correct one, or it is impossible?
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0answers
346 views

How do I fix a file sharing error? [closed]

I have two computers running Ubuntu 11.04. I am able to to see them on the network but when I try to open the shared files I get the message, unable to mount location dbus error ...
0
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1answer
7k views

Transfer files from Ubuntu to a Windows 7 system on the same network

I don't know about Samba and stuff, and I don't care to share files on the network either. I just want to copy/move an ISO file form Ubuntu (the CD drive is not working) to a Windows 7 computer where ...
5
votes
4answers
14k views

How do I connect my desktop and my laptop using an ethernet cable to transfer files?

I have an ethernet cable (not a crossover cable) to connect my laptop and my desktop ubuntu machines. I want to transfer large amounts of data. Is it possible with such a cable? I believe that between ...
0
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1answer
2k views

Realtek RTL8111/8168B wired network doesn't work anymore

This sounds like it's a common problem upgrading 11.04, but I am having trouble finding a common solution, and one that will work for me. I just applied updates via the update manager and now my ...
1
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1answer
4k views

How can I make a virtual router on Ubuntu?

I have a 3G stick that I'm connected with to the network. I would like to share this connection with my PlayStation 3. How can I create a virtual router?
0
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1answer
1k views

Disabling UDP Packets

I would like to completely disable UDP packets from exiting or entering my computer(Ubuntu 11.04), how would I go about doing this? What are the downsides to disabling UDP packets? The reason for ...
4
votes
1answer
801 views

How to establish wireless connection from command line?

Can someone please tell me how I can establish connection to my WiFi network from the command line? (My desktop GUI is fried.) I've tried the following: sudo iwconfig wlan0 essid NETWORK_NAME sudo ...
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2answers
2k views

How can I chat in the terminal on a local LAN?

I've heard that if there are computers interconnected via LAN (as we have in our college labs), I can chat with other friend of mine, who is probably 2-3 rows ahead of me. I did some Google on this ...
5
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2answers
2k views

Allow/Deny a user from binding a range of ports

As it is, Linux fails to bind ports < 1024 for any user other than root. How do you blacklist or whitelist ranges of ports for specific normal users, so that they can not bind them, in the same ...
0
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1answer
520 views

haproxy configuration

I cant get my Haproxy to come online....when i do service haproxy start i get fatal errors my setup i installed haproxy then install heartbeat... i only want to have one nlb and two web servers ...
0
votes
1answer
339 views

Samba doesn't work on 10.10

I have dual-boot laptop ASUS K42J (with Natty 11.04. and Maverick 10.10). Natty 11.04 was freshly installed, and then after couple months I had installed Maverick alongside (just for experiment). I ...
4
votes
1answer
907 views

How to setup Puppet server?

I would like to setup Central Management Server (PUPPET) to manage all clients. I have read many documentations, but none of them was helpful. Can anyone explain setting up puppet server in detail? ...
1
vote
1answer
514 views

unable to connect to broadband connection with two LAN card

I have installed Ubuntu on my system, which has two LAN card. One of the LAN card is not working. But the other do work. I have tried configuring the internet connection but failed.
3
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1answer
3k views

Wireless driver not detected

When typing iwconfig I only get "no wireless extensions" How do I get the Ubuntu wireless driver to be detected? lspci: 00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge 00:01.0 PCI ...
2
votes
1answer
754 views

How can I keep Ubuntu from dropping my network connection when it goes to sleep/hibernate mode?

I have my computer running a Minecraft server as well as sshd (so I can sign in and check on things), but if I leave my computer on for about a day it goes into sleep then eventually hibernation mode ...
2
votes
2answers
1k views

How to protect a computer name from being disclosed to network peers?

I'd prefer my hostname to be hidden (or a fake hostname to be shown - both variants are interesting actually) from my network peers (including routers ad DHCP servers). I believe my IP and MAC ...
15
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6answers
37k views

resolv.conf keeps getting reset by something

I need help figuring out why my resolv.conf keeps changing to this, causing me to not be able to access the outside internet and only the local network: $ cat /etc/resolv.conf nameserver 192.168.16.1 ...
2
votes
3answers
6k views

How do I get an Atheros AR9285 working?

I've just decided to jump into the world of Ubuntu, so far I encountered no problems until I tried to connect to my wireless network. I'm running Ubuntu on my laptop, Acer Aspire 5333-2880, which has ...
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0answers
1k views

Computer won't connect to Internet using Ethernet cable [closed]

I'm new to Ubuntu Linux. I have a Sony Vaio computer and am trying to get it connected to the Internet using an Ethernet cable. I'm able to connect a windows machine to the Internet using this cable, ...
1
vote
1answer
483 views

OpenVPN conflicts with 3G mobile broadband

I'm using ubuntu 11.04 2.6.38-8-generic fresh install. The usb 3G dongle (Onda MT833UP) is recognised by the networkmanager and works fine until I install the openvpn client (sudo apt-get install ...
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1answer
2k views

How do I add a dyndns alias to my Iptables?

First of all: I'm aware of this old question: iptables allow dyndns domain name and auto update rules But somehow it doesn't help me. The Problem Iptables on my work pc are configured to drop all ...
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3answers
6k views

Can Ubuntu act as a Domain Controller for multiple OSes?

I would like to install Ubuntu server at my church to start testing a few options (to eliminate Microsoft usage). Some PCs use Windows XP, and some use Ubuntu. I would like the Ubuntu server to be a ...