[TYPO3] Multiple site in 1 Server

[Rocky]

Hey Group,

I'm sure it is simple if you know the answer. Can I Install one TYPO3 on 
my server and put multiple websites on it?

Let's say I install the TYPO3 on /home/user/public_html which can be 
accessed by www.domain.com. And put multiple sites on the TYPO3. How Can 
I direct the domain name to corresponding site? (WWW.domain_1.com to 
site 1 and www.domain_2.com to site 2)

Thanks a lot!
Rocky