question about multisite domain residing in the same VPS server with the same ip

Hi i've tried setting up multisite domain along with the cloner. I followed step by step instructions but it seems that it didn't work for me.
So here is what I have
one VPS server with two domain name. (but same ip address)
Trying to clone one site to another
http://www.site1.com and to http://www.site2.com
I set up the wild card A rec from http://www.site2.com to point to the ip address which is the same as site1.com (so *.site2.com -> 69310.34.26)
i've setup site1.com to be multisite and setup site2.com under it as another site
i've added site2.com to the multidomain setting

Not sure what i'm missing.
Thanks for your help,
Sam