Edit your zone file for the domain in question. Create an A reaord *.domain.com to Domain share IP.
* 14400 IN A xxx.xxx.xxx.xxx
(xxx.xxx.xxx.xxx is server share IP)
nano /usr/local/apache/conf/httpd.conf
Edit your virtual host container for the domain in question to look like this
cntrol w search for domain.com
ServerAlias www.domain.com domain.com *.domain.com ServerAdmin webmaster@domain.com DocumentRoot /home/user/public_html BytesLog domlogs/domain.com-bytes_log User user Group user ServerName www.domain.com
User user Group user CustomLog /usr/local/apache/domlogs/domain.com combined ScriptAlias /cgi-bin/ /home/user/public_html/cgi-bin/