Managing and using network connectivity on a Ubuntu system

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94
votes
6answers
18k views

Best way to cache apt downloads on a LAN?

I have multiple Ubuntu machines at home and a pretty slow internet connection, and sometimes multiple machines need to be updated at once (especially during new Ubuntu releases.) Is there a way where ...
44
votes
1answer
69k 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 ...
62
votes
12answers
175k views

How to restart the networking service?

I tried to use sudo service networking restart and sudo /etc/init.d/network restart but they both crash the window manager and I can no longer use my keyboard for input into X. when I use the ...
25
votes
2answers
102k views

How do I install drivers for the Atheros AR8161 Ethernet controller?

I have installed Ubuntu 12.04-64 bit on my Lenovo IdeaPad laptop, and the wired Ethernet (LAN) connection doesn't work. Running the lspci -vv | grep Atheros command from the terminal shows me I have ...
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?
7
votes
2answers
17k views

Broadcom STA driver fails to install missing wl on Ubuntu 12.04.3 LTS / Linux 3.8

After installing Ubuntu 12.04 LTS on my HP Folio 13 I cannot get wireless to work. My kernel is 3.8.0-29-generic and my wireless module is a Broadcom BCM4313. After running rfkill list all: 0: ...
21
votes
4answers
46k views

How to set up Ubuntu as wireless accesspoint?

How can I set up my WiFi to be used as wireless access point on Ubuntu Server? I have a local Ubuntu Server, it has a wireless card in it (802.11a/b/g/n) and I really want to set it up as an 802.11n ...
14
votes
2answers
12k views

Problems with networking after suspend [closed]

I have some problems on my Asus notebook since I upgraded to Ubuntu 13.10: Networking (wifi and lan) won't work after resume from suspend. I've seen many posts about this but they wouldn't work for ...
4
votes
2answers
8k views

In Ubuntu, Is there an application like “Huawei Mobile Partner” for Broadband Connections?

I want to know that is there an application in Ubuntu which is like Huawei Mobile Partner. That application should provide: Display bandwidth SMS facility. Make Connection and ...
17
votes
2answers
17k views

How do I change / spoof my MAC address and easily switch between multiple ones?

My router can do port-forwarding based on MAC addresses. That is, a specific MAC will get a specific IP, for which I can configure a set of ports to be forwarded. In order to easily change that set of ...
5
votes
1answer
16k views

How to share files using a Wireless Network?

I have a desktop (Ubuntu 13.04 & Win 7 Home Premium) and a Laptop (Ubuntu 12.04), both having WiFi adapters. I also have a WiFi router connected to internet which both my computers can access. I ...
53
votes
5answers
18k views

How do I find out which process is eating up my bandwidth?

I think I'm being the victim of a bug here. Sometimes while I'm working (I still don't know why), my network traffic goes up to 200 KB/s and stays that way, even tough I'm not doing anything ...
20
votes
3answers
12k views

How do you configure desktop for a static IP address?

By default Ubuntu uses DHCP and Gnome NetworkManger to configure interfaces. This is not optimal in many cases. How to configure a desktop machine for a static IP address that applies to all users? ...
15
votes
3answers
14k views

Can't connect to any wireless connection after updating

I have a dual boot (windows 7 and ubuntu 12.04) setup and, for (apparently) no reason, I can't connect to any wireless connection on my ubuntu box at all. (on Windows it works.) I think it stopped ...
7
votes
3answers
2k views

What is needed for a networked home printer?

I've seen this question: Home network printer recommendations but I think I'm asking something more basic. I'm not really familiar with networked printers or how they work or what they do really. What ...
23
votes
3answers
9k views

bind software to different network interfaces

I have two different network interfaces, connected to 2 networks. One is an eth0 and the other one a wlan0. How can I tell a software to use only a specific interface? Basically I want Firefox to ...
28
votes
6answers
46k views

“Waiting for network configuration” adding 3 to 5 minutes to boot time

I get the following pieces of information at the startup, takes about 3 to 5 minutes, while normally about 1 minute: Waiting network configuration Booting system without full network configuration ...
2
votes
2answers
18k views

How to set up a broadband connection

I have a bsnl broadband connection. I don't see any settings for broadband in Ubuntu, and I can't just connect automatically -- "wired connections" shows no connection. I see an option for mobile ...
71
votes
10answers
79k views

How do I clear the DNS cache?

I just updated the DNS record (ns1, ns2, ns3.myhostingcompany.com) for a site I've got hosted, but I still get the domain registrar parking page. I'd like to see if the problem is Ubuntu's cached DNS ...
24
votes
5answers
18k views

Can't connect to WPA2 Enterprise PEAP

My university uses WPA2 Enterprise encryption for students to login their wireless. In NetworkManager I have keyed in everything that they needed Security : WPA & WPA2 Enterprise Authentication ...
11
votes
2answers
53k views

Sharing Connection to other PCs (Via Wired Ethernet) [duplicate]

I have two desktop PCs I use frequently, both running Ubuntu 12.04. One is connected to the internet via wireless, and the other has no wireless card. Is there any way I can share my internet ...
6
votes
2answers
5k views

How do I join a Windows Active Directory?

We have a "mix-mode" Lab. and we want to migrate to Ubuntu, from Windows. In this process, how do we add Ubuntu workstations to a Windows Domain / Active Directory ('AD') setup?
3
votes
3answers
49k views

How to turn on Network Discovery and Share between computers with Samba

I have an Ubuntu server. Accessing the server from Windows clients works fine. But the server is not listed among the available PCs on Windows client's Network overview. For windows machines it ...
11
votes
7answers
96k views

How to configure proxy authentication to work with Ubuntu Software Center?

I have tried put in apt config Acquire::http::proxy, and in Network>Network proxy with and without user:password@server:port and using environment variables http_proxy and https_proxy. Nothing seems ...
0
votes
1answer
2k views

Ubuntu not connecting to wireless after restarting networking service

There was a problem with my internet connection and I thought that restarting the networking service might fix the problem. So I used sudo service networking restart command. However, my window ...
1
vote
1answer
659 views

Can't connect to wireless 13.10

I have ubuntu installed as the sole OS on a T420. Before this I had installed the #! distro (and Xubuntu before that) and wireless worked seamlessly on either. My home hotspot shows up but when I ...
23
votes
3answers
35k views

How do I setup OpenVPN so I can securely use the internet from an unsecured hotspot?

Goal: I want to be able to securely use the internet via my home PC while my notebook is connected to an open hotspot/access point. I do know that I can use a SSH tunnel/SOCKS proxy, but I don't want ...
37
votes
3answers
24k views

How I can limit Download/Upload bandwidth?

How I can limit Download/Upload bandwidth for: Entire OS. One network interface. Single application.
2
votes
2answers
17k views

Could anyone help me get my NETGEAR WNA3100 (Broadcom BCM43231) wireless adapter to work?

I have just moved back to Ubuntu from Windows 7 and a few months ago, I bought a NETGEAR WNA3100 wireless adapter because my old adapter had broken. I plugged in my adapter and it doesn't seem to ...
3
votes
4answers
6k views

How do I get an iball 3.5G modem working on Ubuntu?

I purchased iball 3.5G connect wireless modem 1 month before. I am trying to connect it with my laptop which is having ubuntu Operating System. After plug-in it to the ubuntu system it is not ...
71
votes
16answers
134k views

Command for determining my public IP?

If I check with google, I can see my public IP. Is there something on the Ubuntu command-line which will yield me the same answer?
28
votes
4answers
10k views

How can you monitor internet download usage?

Some broadband providers impose a monthly download limit, charging extra if you go over. It is also quite easy to exceed some of the lower limits just by installing/updating packages and 'normal' ...
15
votes
0answers
12k views

Command to know my external IP address? [duplicate]

How can I get my external IP address using the Command Line?
8
votes
4answers
12k views

Wireless disabled by hardware switch on an Asus X550V

I'm using Ubuntu 13.04 and I have ASUS X550V laptop. This is my rfkill list: 0: asus-wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: asus-bluetooth: Bluetooth Soft blocked: no ...
5
votes
4answers
18k views

Drivers for Broadcom BCM43142 on Ubuntu 14.04 (Trusty Tahr)

I am not able to install drivers for my Wi-Fi + Bluetooth card (Broadcom BCM43142). What I have done till now: I have tried using the drivers at this website. I tried following the instructions ...
9
votes
9answers
16k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
4
votes
4answers
21k views

How to set static IP address?

I have configured network adapter of guest Ubuntu to work in a bridged mode so I could ssh to it from the host machine. The problem is that the guest Ubuntu ip address keep changing. Even though ...
1
vote
2answers
3k views

Ubuntu 12.04 Realtek RTL8188E Wireless Card Not Detected

I have Ubuntu 12.04 (WUBI) on my Toshiba Sattellite. I have a Realtek RTL8188E Wireless LAN 802.11n. The internet works fine when I plug it in using a ethernet cable, but my laptop doesn't even ...
13
votes
3answers
53k views

How to set static routes in 12.04 Server

I have used Ubuntu since Ubuntu 8.10; today I'm working with Ubuntu 12.04 Server. I am having difficulty keeping static routes on booting. I would usually put the route commands /sbin/route add ...
13
votes
2answers
3k views

How do I run Juju on a local server?

I'd like to use juju on my server at home to get to know juju and play with it. I have multiple computers and would like to access what's on the server from any of them. When I went through the ...
3
votes
4answers
20k views

How do I get a Qualcomm Atheros Killer E2200 gigabit ethernet card working?

I bought a new computer, hoping to dual boot Win 8 and Ubuntu 13.04. I have successfully installed both OS, but in Ubuntu I have no connection to the internet, even though the ethernet cable is ...
14
votes
6answers
12k views

Ubuntu One behind a proxy, how to make it work?

I am behind a web proxy server at work (no authentication) and I have set it up in Gnome (configuration applied system-wide). It works fine for accessing internet with a browser, but numerous ...
9
votes
8answers
39k views

How to check if Network Proxy is really applied?

I'm trying to set Network Proxy to use my LAN's internet connection to update packages. while the proxy settings works on my firefox, but the package manager still cannot connect to Internet. I have ...
9
votes
1answer
15k views

Network indicator disappeared in Lubuntu [closed]

I just upgraded to Lubuntu 14.04 from 13.10 successufully, via do-release-upgrade. But after reboot, I found that the network indicator has been disappeared, so I cannot switch different network ...
12
votes
7answers
18k views

Two ethernet ports on motherboard. How can I get double the bandwidth?

Direct Question: My evga classified motherboard has two ethernet ports. I want to use them simultaneously to improve the speed of a remote connection. (Yay for programming remotely). How do I do ...
30
votes
5answers
122k views

How do I fix a “Wireless is disabled by hardware switch” error?

I just updated to Ubuntu 12.04 from 11.10 but soon after updating I was disappointed to see that Wireless is disabled by hardware switch. I can not click the button 'Enable wireless' which is ...
12
votes
6answers
18k views

How do I stop my ethernet network connection from dropping?

My ethernet-based network connection doesn't stay up consistently. I'm running a ping against the gateway and it will: Work for a minute Freeze, time out, or give multi-second response times Repeat ...
6
votes
1answer
17k views

Connect Ubuntu to other PC with direct (crossover) cable

Ubuntu 11.04 (PC-1) is connected to PC-2 (Windows XP) with LAN cable (crossover direct cable) Internet access is through USB wireless modem accessing router in separate room If I boot in Windows 7 ...
14
votes
3answers
15k views

How do I route my internet through a SSH tunnel?

Old Q How do I setup an OpenVPN server without root privileges? Is there a way to setup an OpenVPN server without root privileges? E.g. with configuration files in my home directory? If yes, how do I ...
13
votes
5answers
11k views

Internet slow on Ubuntu but not windows using a RTL8111

I have just installed a dual boot windows7 /ubuntu 11.10 and the internet is much slower than windows. I have read the post here and tried the solutions presented and none have worked. Here is what I ...