internet connection help

[airbender]

hi,

i have internet access when i boot from kubuntu live CD (version 6.06 LTS). however, after installing kubuntu on my hard drive and boot from the disc i don't have internet connection.

please help me...

[toad]

Re: internet connection help

Hm, we need a little bit more info like what is your setup, are you on a router, modem, wlan, ethernet, you name it. Give us all you can

[airbender]

Re: internet connection help

i'm not sure if it works but here's lspci output:

0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host B ridge (rev 80)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
0000:00:06.0 Modem: ALi Corporation SmartLink SmartPCI561 56K Modem
0000:00:07.0 Ethernet controller: Davicom Semiconductor, Inc. 21x4x DEC-Tulip co mpatible 10/100 Ethernet (rev 40)
0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Contr oller (rev 80)
0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Contr oller (rev 80)
0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Contr oller (rev 80)
0000:00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT82 3x/A/C PIPC Bus Master IDE (rev 06)
0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8 237 AC97 Audio Controller (rev 50)
0000:01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev b2)

you will see a dial-up modem there, which i used once. now i'm using DSL modem to logon through the ethernet controller. the 4-port dsl modem is compatible to be used as router as well. but i don't use it as router. and i hope kubuntu acts like i do
is there any other info you need?

[toad]

Re: internet connection help

Could you post the contents of your /etc/network/interfaces file please?

[airbender]

Re: internet connection help

here is the content of /etc/network/interfaces:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

auto eth0
iface eth0 inet static

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

[toad]

Re: internet connection help

Okay, we want to mess with that file! Make a backup first by opening up a console and typing

sudo cp /etc/network/interfaces /etc/network/interfaces.bak

Now type

sudo kate

Open up a session and open the file /etc/network/interfaces.

Delete everything apart from the first four lines, i.e. these:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

Save the file, close kate and log out. On your next log in you should be on the net

[airbender]

Re: internet connection help

i did as you said but unfortunately, i still receive an error message trying to loading a site with konqueror:

"an error occured while loading http://www.debian.org:
unknown host www.debian.org"

and if i try to ping an ip it says:
"connect: network is unreachable"

[toad]

Re: internet connection help

My mistake, I should have checked my file first - your /etc/network/interfaces should consist of the following two lines only:

auto lo
iface lo inet loopback

Now it should work

[airbender]

Re: internet connection help

hi again, bad news...it didn't work
i'd told i had connection booting from the live CD. i think i could see what are the configuration differences in the files we changed. may it work? should i check something else?