that would be a 'virtual host'
virtual host definitions for apache2 go into /etc/apache2/sites-available then to enable them you create a symlink into /etc/apache2/sites-enabled
an example of a virtual host definition would be
Code:
<VirtualHost 10.0.0.32:80>
<Directory "/home/hopper/ryzom/code/ryzom/tools/server/">
Options -Indexes FollowSymLinks MultiViews
IndexOptions FancyIndexing FoldersFirst NameWidth=*
AllowOverride All
Order allow,deny
Allow from all
</Directory>
ServerAdmin admin@localhost
DocumentRoot /home/hopper/ryzom/code/ryzom/tools/server/admin
ServerName localhost
</VirtualHost>
replacing the directory/document root/server admin/server name/ip addr with relevant information to your server