I'm not even going to allow another thread like this, so its being closed as we don't yet need another.
First thing to do is Search, been asked dozens of times with dozens of replies.
Second you should read stickies, they do hold lots of information:
http://www.linuxquestions.org/questi...hreadid=103564
And also read the link that 2damncommon presented.
Also in the future, use better and more helpful thread titles as yours does not describe your question and what its about.
Thanks.