>>Hi All,
>>
>>I have a web site that will be used with many different domain names. My customers will have their own domain name pointing to my site and I use that domain name to customize the web site with their contact info. For now, I have my customers point their domain names my site using the IP address. My fear is that I will have to some day change my IP address and then all my customers will have to change their domain names again. I was wondering if there was a way to have my customers point the DM to an alias do I only need to change my alias name's IP instead.
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>>Thanks for you help.
>
>Isn't the obvious solution to register your own domain name ?

I don't have control of that. Many of my customers control their own domain names so they have to point their name(s) to my web site. What I don't want is to have to tell hundreds (maybe thousands someday) on xx day my web servers IP address is going to change.

I did some more research and found out that using cname instead of the A record will work.