Comments on: Ubuntu Networking Configuration Using Command Line

By: markpupugee

markpupugee — Sat, 04 Feb 2012 03:10:41 +0000

how to configure dual lan in UBUNTU ??

By: Deepak

Deepak — Thu, 12 Jan 2012 15:13:52 +0000

After restart all IP setting are flushing.

Pls help me..

By: ramakrishna

ramakrishna — Tue, 10 Jan 2012 09:27:49 +0000

mr amit first u can disable firewall and also disable ipv6 then after u can access internet

By: jsp

jsp — Thu, 22 Dec 2011 05:29:29 +0000

Its simple to save any file ,just press Esc key and type:wq

By: mvz david

mvz david — Sun, 07 Aug 2011 23:20:04 +0000

i have a missing cd od wireless pci
adapter anyone knows how to find the software?
it says 300mbps but it doesnt go up to 300mbps

By: Amit

Amit — Sat, 23 Jul 2011 06:23:52 +0000

I am trying to configure my ubuntu machine as a firewall. It has two NICs, one for internet (eth0) and other for LAN (eth1). I connected internet cable to etho and my laptop to eth1 using crossover cable.

I am able to access ubuntu machine from laptop but unable to access internet. I user iptables to forward traffic from eth1 to eth0. But it is not working.
Please suggest.

By: ast

ast — Mon, 27 Jun 2011 07:27:28 +0000

nano is a good editor and is built in ubuntu too. it also has command helpers on the bottom.

I want to ask if how to detect/configure the NIC if I installed ubuntu on a virtual machine? I set up Bridged Adapter and/or Host-only adapter but still does not show up when I type ‘ifconfig’.
I also modified the /etc/network/interfaces file.

By: benson

benson — Fri, 03 Jun 2011 12:33:36 +0000

am new in ubuntu server, pliz help me with configuration comands

By: Praveen

Praveen — Mon, 04 Apr 2011 08:54:07 +0000

Ubuntu is cool Very nice collection of Terminal commands

By: Arnaud

Arnaud — Tue, 08 Mar 2011 21:08:44 +0000

Now that we have two “interfaces” and two ip.
How can we force a program to use only one interface ?

I can set QoS and operational time on my router per IP. So, for example, I can define low bandwidth during the day for that specific IP in my LAN.

I would like to force a specific program to use only one IP and all other applications use the the other one.

Thanks

ps vi is extremely efficient and fast compared to gedit. I admit that you have to get use to it.

By: rex

rex — Thu, 03 Mar 2011 02:41:57 +0000

nice tuts!!! now i have alias

By: Susanta Roy

Susanta Roy — Wed, 16 Feb 2011 16:18:28 +0000

To Check How many Network Interface Cards Install, execute the following command,

susanta@admin:~$ ifconfig

Note: if numbers of network card installed then it recognized as eth0, eth1, eth2, . . . in Linux

By: Orphis

Orphis — Thu, 13 Jan 2011 22:28:17 +0000

Thanks to Joe for publishing the default loopback interface, sorry for the late thanks.

And to ieee488, the poster actually says ‘Note :- Use vi editor if you don’t have GUI installed;’

So your statement is rendered pointless.

By: ieee488

ieee488 — Thu, 13 Jan 2011 14:07:22 +0000

+1 to rduke15 for point out the insanity of using vi instead of the much simpler gedit to edit /etc/network/interfaces file.

unless you installed Ubuntu to not use X graphical interface, there is no reason to use vi.

USE gedit

By: Mehdi

Mehdi — Sat, 01 Jan 2011 22:25:51 +0000

Biswajit;

are you using wireless or wired network?

has linux found your network card?

are you using xwindows or command line?

do you have access to your router/dhcp server (is this at home or at work)?

did you run the ifconfig -a and see what it says?

By: Biswajit

Biswajit — Thu, 30 Dec 2010 10:37:51 +0000

this is good but i tried same like this but my network is not configured.ip address cant accept it.help me

By: Mehdi

Mehdi — Sat, 18 Dec 2010 00:55:06 +0000

Jack;

If you have pico (or nano) you can edit and then save by Ctrl X (to exit) then press Y for yes.
if you are using vi (which I know very little about) do as Josh said above. Also you can do shift ZZ to exit vi.
as already said, good idea to save a copy first. like
cp file.1 file.2
then
pico file.1
if anyone else knows of another cool editor let us know please.(I assume that ppl are using command line or terminal & not GUI or X).

By: Josh

Josh — Fri, 17 Dec 2010 23:33:30 +0000

p.s.
for go..sake, backup the orig!

By: Josh

Josh — Fri, 17 Dec 2010 23:32:20 +0000

jus smak me if im wrong..lol

By: Josh

Josh — Fri, 17 Dec 2010 23:30:36 +0000

I think it would be the esc key then shift :w to write, then esc shift :q! to exit out? using vi.