Need help for internet; complete newbie!

[MusicLaunch]

During boot, everything is OK, then, when i'm at my knoppix desktop and i go (for example) to google.com, it says
"unknown error
Host not found"

i tryed "netcardconfig", but it failed
i cant ping websites (host not found)
pinging IPs have some effect (pinging xx.xx.xx.xx T=0), i dont think it is is sending anything

could someone please tell me how to make knoppix find my internet card and get it online?

PS: I have no clue what my card is and no clue how to find

[rickenbacherus]

After Knoppix boots, open a terminal. You can find one either in the menu or on the taskbar. It is akin to the comman prompt in windows only much more powerful. In the terminal type this:

lspci -v

That will give you some information about your hardware. There are several commands you can enter into a terminal that will give you all sorts of information here.

gluck

[MusicLaunch]

thx, rickenbacherus

My computer is a Pentium(R) 4 CPU 2.00GHz, 480 MB of ram

My ethernet controller/card is: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+

When i do ping in Knoppix with website (ping google.com), it goes:

ping: unknown host google.com

When i go ping with IP (ping 216.239.39.99 [google ip]), it goes:

PING: 216.239.39.99 56 bytes of data
ping: wrote 216.239.39.99 64 chars, ret=-1

ping: sendto: Network is unreachable

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I think that Knoppix doesn't know that an ethernet card is there, so it cant access it, and I dunno have to make it work...

What should i do?