Hello and Welcome to LinuxQuestions,
The first thing to do is search on the Internet for a howto guide. LQ users are not in the habit of providing step by step guides or howtos. Finding them is easy enough with the help of your best friend Google. When you follow a guide found on the internet and you encounter problems following the instructions are you get errors in doing so, that's when you turn to LQ for help. Have a look at this link I found with Google in under a second
Also when asking a question, be as complete as possible in your description and at the very least provide us with basic information such as what distro and version are you using. Have fun with Linux.